IEEE-SA ER SCC 18 Meeting March 5th and 6th, 2015 ...grouper.ieee.org/groups/scc18/NFPA_70_NEC/NFPA_70_NEC...IEEE-SA ER SCC 18 Meeting March 5th and 6th, 2015 Minutes IEEE-STANDARDS

IEEE-SA ER SCC 18 Meeting March 5th and 6th, 2015 Minutes

IEEE-STANDARDS ASSSOCIATION EXTERNAL REPRESENTATIVES STANDARDS COORDINATING COMMITTEE

IEEE-SA ER SCC 18 Meeting Attendees

Attendees Name Company Panel E-Mail Phone Attendance 5th 6th

Ed Larsen Schneider Electric USA

SCC-18 Chair [email protected] (319) 369-6422

Vacant SCC-18 Vice-Chair

Vacant SCC-18 Secretary

Bill McCoy Telco Sales, Inc.

SCC-18 Membership

Chair

CMP-16 Principal

[email protected] (817) 913-4492

Mario Spina Verizon Wireless

SCC-18 Website

CMP-13 Principal


Arthur J. Smith, III Waldemar S.

Nelson and Co., Inc.

SCC-18 Elections

Officer

Acting Secretary

CMP-11 Principal


Lisa Perry

IEEE Standards Association (IEEE-

SA) Program Manager, Standards Technical

Community

Special Guest [email protected] (732) 562-3942

Kent Sayler P2S Engineering CMP-1 Princial [email protected] (562) 497-2999

Vacant CMP-1 Alternate

Jim Mitchem CMP-2 Former Princial

[email protected] ??? Excused Absence


David Mills T. David Mills Associates, LLC

CMP-3 Princial [email protected] (706) 399-2554 Attendance via

Conference Call


Mark Gibbs Consolidated

Nuclear Security LLC

CMP-4 Princial [email protected] (865) 574-8159 Attendance via

Conference Call


IEEE-SA ER SCC-18 March 2015 Houston Meeting Minutes - FINAL.docx Page 1 of 47

mailto:[email protected]











Daleep C Mohla DCM Elect Consulting

CMP-5 Princial

NFPA 70E Principal

NFPA 79 Principal

[email protected] (281) 261-7081 Excused Absence


Ned Brush BBF & Associates CMP-6 Princial [email protected] (781) 315-1210


Dennis Nielsen Lawrence Berkeley National Laboratory

CMP-7 Princial [email protected] (510) 486-4055


Paul Myers PCS Nitrogen CMP-8 Princial [email protected] (419) 879-0344


Vacant CMP-9 Princial


Dennis Darling Stantec CMP-10 Princial [email protected] (403) 716-8132

Steve Townsend General Motors Corporation.

CMP-10 Alternate [email protected] (586) 596-1813

Arthur J. Smith, III NELSON CMP-11 Principal [email protected] (504) 593-5270 See Above




Mario Spina Verizon Wireless CMP-13 Princial [email protected] (330) 807-7713 See Above

William Cantor TPI

CMP-13 Alternate

NFPA 70B Alternate


Will McBride Northern Electric Company


Andrew Hernandez AstraZeneca Pharmaceuticals

CMP-14 Alternate


Matthew Dozier iDesign Services CMP-15 Princial [email protected] (615) 298-5557


Bill McCoy Telco Sales, Inc. CMP-16 Princial [email protected] (817) 913-4492 See Above


Chester Sandberg Shell Exploration and Production, Inc.

CMP-17 Princial [email protected] (650) 493-2770 Excused

Absence




















Kurt Clemente Clark Nexsen

Architecture and Engineering



Don Zipse Electrical Forensics, LLC

CMP-19 Princial [email protected] (302)227-2702 Unexcused




Brian Brecheisen NLMK Indiana NFPA 70B Principal [email protected] (219) 787-8200

X5324 Attendance via Conference Call

William Cantor TPI NFPA 70B Alternate [email protected] (610) 524-7260 See Above


NFPA 70E Principal [email protected] (281) 261-7081 See Above

Paul Dobrowsky Innovative

Technology Services

NFPA 70E Alternate [email protected] (585) 797-4462

Stephen L. Dyrnes Dyrnes Engineering Co.

NFPA 73 Principal [email protected] (503) 377-9699 Unexcused

Vacant NFPA 73 Alternate


NFPA 79 Principal [email protected] (281) 261-7081 See Above

Vacant NFPA 79 Alternate

Dale Boling ERICO Inc. SCC-18 Member [email protected] (440) 542-3899 Unexcused

James Bowen Aramco Services Co.

SCC-18 Member [email protected] (281) 705-3244

David Brender Copper

Development Association, Inc.

SCC-18 Member [email protected] (212) 251-7200

Donald Dunn Phillips 66 SCC-18 Member [email protected] (806) 318-9270 Excused

Absence

Marcelo Valdes GE SCC-18 Member [email protected] (860) 747-7782 Attendance via

Conference Call

Dan Neeser Cooper Bussmann [email protected] (636) 527-1681 Attendance via Conference Call

Chris Hunter General Cable Guest

Travis Lindsey Travis Lindsey

Consulting Services

Guest

Meeting Location: Aramco Services Company 9009 West Loop South Houston, Texas 77096-1799 (713) 432-4000 Contact person: James Bowen (713) 432-4328 E-mail: [email protected]


















Meeting Room: 1st Floor Assembly Room

Time: March 5th and 6th, 2015 8:00 am – 6:00 pm Thursday 8:00 am – 3:00 pm Friday

To join meeting via WebEx: Thursday March 5th:

https://aramcoservices.webex.com/aramcoservices/j.php?MTID=maf2a904e9a99df1129bfc70eefc4513e> Meeting number: 825 382 844 Meeting password: SCC18

Friday March 6th: https://aramcoservices.webex.com/aramcoservices/j.php?MTID=m455bf1e88d948962d496f4f3f526d33d>

Meeting number: 820 111 833 Meeting password: SCC18

Facilitator: Ed Larsen Acting Secretary: Arthur Smith

Thursday March 5th, 2015 1. Welcome (Ed Larsen/Jim Bowen)

Logistics (emergency exits, restrooms, lunch, etc.)

2. Introduction of participants (Arthur Smith, Ed Larsen - All) Introductions:

a) Chair – Ed Larsen, - Schneider Electric USA b) SCC-18 Membership Chair - Bill McCoy, Telco Sales, Inc. c) Elections Officer - Arthur J. Smith, III, Waldemar S. Nelson & Co., Inc. d) Special Guest – Lisa Perry, IEEE Standards Association (IEEE-SA) Standards Technical Community,

Program Manager e) Self-introduction of those present (all)

3. Record of attendance (Arthur Smith) Sign in sheet documents attendance and any contact information changes – review carefully

4. Determination of quorum for record (Arthur Smith) Notes:

1. 30 SCC18 members as of February 28, 2015) Arthur Smith established a quorum with 21 voting members present (Note: 16 SCC18 members required to establish a quorum)

2. All IEEE meetings, including SCC 18, are open to all wishing to attend; however, Business Meeting voting is limited to IEEE-SA SCC-18 members

Members Present (see sign sheet) 1. Thursday March 5th - 21 Voting Members Present or participating via conference call 2. Friday March 6th - 22 Voting Members Present or participating via conference call


https://aramcoservices.webex.com/aramcoservices/j.php?MTID=maf2a904e9a99df1129bfc70eefc4513e

https://aramcoservices.webex.com/aramcoservices/j.php?MTID=m455bf1e88d948962d496f4f3f526d33d


5. Determination of voting count and record (Mario Spina) Note: A Majority of all SCC-18 Members eligible to vote (i.e. not required to recuse themselves on a particular vote and participating in meeting (i.e. no write-in votes)

6. Approval or Revision of Agenda (Ed Larsen - All) Agenda Revisions

Slight modification in agenda for ERs to make motion for SCC-18 direction LAST. This will help streamline the meeting and minimize the number of motions. Motion and second made with unanimous approval given to accept the Meeting Agenda “as-modified”

7. Conduct of Meeting (Ed Larsen) a) The meeting will be conducted in a fashion similar to that of an NFPA technical committee

meeting (request permission to speak, motions to oppose a panel first revision must be accompanied by a statement, etc.)

b) Roberts Rules will be followed c) A motion to oppose a first revision may be for one or more reasons:

1. Technical 2. Best engineering practice 3. Field experience

d) If the chair must recues himself, Bill McCoy will temporarily chair the meeting e) Approval of January 3rd and 4th, 2013 meeting minutes – The 2013 meeting minutes were

approved f) SCC-18 Recusals

7.1.2 of the IEEE Standards Association Operations Manual states: The ER should not represent another group in the same external organization, committee, or entity to which that person is serving as an IEEE ER. However, recognizing that an ER might need to represent another group (such as his/her employer that underwrites travel costs), the ER may be permitted to represent that group as well as the IEEE-SA in the same external organization, committee, or entity. In such situations, the individual serving as an ER shall recuse himself/herself from voting on issues that would result in a conflict between his/her duty to the IEEE-SA and his/her duty to the other group. The ER shall report such situations to the OBC at the earliest practical time. Once the OBC is made aware of the situation by the ER, the OBC shall decide the best course of action to provide the IEEE-SA position on the issue to the external organization.

The following SCC18 members must recues themselves from voting on issues related to the stated NFPA Technical Committee or Code Making Panel because they represent another organization on that TC or CMP.

Name TC / CMP Organization David Brender CMP5 Copper Development Association

Paul Dobrowsky CMP5 American Chemistry Council Ed Larsen CMP2 Schneider Electric USA Ed Larsen CMP11 NEMA

Dan Neeser CMP13 Eaton Bussmann Marcelo Valdes CMP17 NEMA

Others? No Others Noted

g) PIs resolved at the First Draft Meeting 1) PIs resolved at the First Draft meeting will not be balloted, cannot be commented on and are

gone as far as this revision cycle is concerned.



2) According to the Regulations: 4.4.4.1 Public Comments shall be limited to proposing revisions to the First Draft.

Therefore cannot comment on PIs that were Resolved in the First Draft Ballot. That is why the report template only asks for action by SCC18 concerning First Revisions. There is no reason to mention PIs that were Resolved during the SCC18 meeting as there is nothing we can do about them. Doing so would only take up valuable time. The only way we can bring a PI back it to submit new PIs during the next revision cycle. For better or worse, this is a completely different process than we followed in the past where we could comment on any panel actions.

8. First Draft Reports and Actions for 2017 NEC - Presented in Numerical Order Notes:

1. Each NEC Principal will have a maximum of 45 minutes for his report to be considered and ballot instructions agreed to using the Word template

2. Alternate will present report in absence of Panel Chair, Chair will read submittal if neither is present 3. All ballot statements are to be prepared in advance to present at this meeting. 4. IEEE-SA ER SCC 18 votes to oppose ER planned action(s) will have those comments developed by those so

opposing

a) CMP-1, 2017 NEC First Draft Report Articles 90, 100, 110, Chapter 9, Table 10, Annex A, Annex H, Annex I, and Annex J

(Principal Vacant, - Kent Sayler Voting Alternate)

1) Noteworthy Panel Actions

a) First Revision No. 55-NFPA 70-2015 [Section No. 110.16] (Arc flash label - with system characteristics - required on service equipment)

b) First Revision No. 44-NFPA 70-2015 [Section No. 110.22(C)] (Reference to new IEEE dot standard)

c) First Revision No. 36-NFPA 70-2015 [New Section after 110.40] (Acceptance testing now required for all MV systems)

d) First Revision No. 47-NFPA 70-2015 [Section No. 110, Part II] (and the many other FRs necessary to update the 600V vs. 1000V issue…)

e) Global Input No. 4329-NFPA 70-2015 [Article 100] (Moving ALL definitions to Art. 100; sent to CC so don’t have FR No.)

2) Statements Opposing First Revisions

a) First Revision No. 1-NFPA 70-2015 [Section No. 90.2(A)] IEEE statement opposing the First Revision: FR1

NEC rules are primarily focused on electrical installations. Removal of electrical equipment is only required in a few specific sections therefore should not be included in 90.2(A). Removal of equipment that does not pose a hazard should not be covered by the NEC.

b) First Revision No. 42-NFPA 70-2015 [Section No. 110.21(A)] IEEE statement opposing the First Revision: FR42

The proposed text creates an infeasible requirement for all reconditioned equipment to be “marked”, without defining what types of equipment maintenance, alterations, or adjustments constitute reconditioning. This is the user’s responsibility to ensure the



equipment as installed complies with all applicable requirements and is suitable for service.

IEEE statement opposing the First Revision: FR8 [PI4334 - Readily Accessible]

c) 100, Accessible, Readily (Readily Accessible). Capable of being easily reached quickly for operation, renewal service , or inspections without requiring those to whom ready access is requisite to take actions such as to the use of tools, the need to climb over or under, remove obstacles, or to resort to use portable ladders, and so forth or similar equipment.

The panel statement does not cover all the changes made and their potential impacts. Removing the words "to those to whom ready access is requisite" was previously considered to permit equipment located behind locked doors to be considered readily accessible to qualified persons if they had the keys. Additionally the revised wording would prohibit locking doors or enclosures that limit access to any equipment that is required to be readily accessible such as panelboards in public spaces. Dictionaries indicate that a key is an instrument and an instrument is a tool.

3) Motion Motion to support all First Revisions except the following first revisions with the IEEE position statements listed above: a) First Revision No. 1-NFPA 70-2015 [Section No. 90.2(A)] b) First Revision No. 42-NFPA 70-2015 [Section No. 110.21(A)] Passed c) First Revision No. 8-NFPA 70-2015

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to oppose FRs 1, 8, and 42 with the statements provided above

b) CMP-2, 2017 NEC First Draft Report Articles 210, 215, 220, Annex D, Examples D1 through D6

(Principal Vacant, Alternate Vacant) – Note: Jim Mitchem recently changed jobs and must reapply to NFPA. The NFPA has been notified. Since IEEE does not have an alternate, we are not able to submit a ballot on CMP-2.

Report Only no SCC-18 Vote


a) Created an Article 100 definition for Ground-Fault Circuit Interrupter, Special Purpose (SPGFCI)

b) In 210.5(C) o Added legibility requirement for system voltage identification marking o Added exception for marking of existing voltage systems o Added dc circuit identification means

c) In 210.6(D) o Added height requirements for luminaires above 277V o Revised multiwire circuit grouping requirements

d) In 210.8 for GFCIs o Added definition for how to determine the distance from a sink to a receptacle o Expanded Class A GFCI requirements



o Added Classes C, D and E SPGFCI requirements o Added GFCI requirements for crawl spaces o Added unfinished basement definition o Moved dishwasher and boat hoist requirements to Article 422

e) In 210.11(C)(3) added requirement for a 20A circuit in garages

f) In 210.12 for AFCIs o Expanded requirement to all 15 and 20A 120V circuits o Deleted requirement for a listed system combination AFCI o Expanded extension and modification requirement to include dormitories o Added requirement for guest rooms and suites

g) Moved EV branch circuit requirement to Article 625

h) Numerous minor changes to receptacle location requirements in dwelling units and garages

i) In 210.64 revised receptacle requirement in service areas

j) In 210.70(C) revised light switch and crawl space lighting outlet requirements

k) Added exceptions to 215.2(A)(1) feeder ampacity requirements

l) Revised Table 220.42 demand factors

m) In 220.87 added exception for calculating demand of existing loads

c) CMP-3, 2017 NEC First Draft Report Articles 300, 590, 720, 725, 727, 728, 760, Chapter 9, Tables 11(A) and (B), and Tables 12(A) and (B)

(Dave Mills, Principal, – Alternate Vacant)


a) PI 2821 recommended an informational note be added to 300.1 to reference IEEE Std. 3000,

“Recommended Practice for the Engineering of Industrial and Commercial Power Systems”, which has not yet been issued, and was voted “Resolve” with the statement: “The acceptance of the suggested Informational Note might imply that Article 300, which is the introductory Article for wiring methods in Chapter 3, only applies to commercial and industrial wiring installations, rather than all installations as appropriately applied to the application. These appear to be design applications more than installation requirements and 90.1 states “This Code is not intended as a design specification or an instruction manual for untrained persons.””

b) PI 3897 recommended an informational note be added to 725.1 to reference IEEE Std. 3001.7,

“Recommended Practice for the Application of Communication and Signaling Systems used in Industrial and Commercial Power Systems” which has not yet been issued, and was voted “Resolve” with the statement: “The IEEE document only applies to industrial and commercial applications and Article 725 applies to all applications.”

c) PI’s 2439, 2441, 2443, 3777, 3780, 3782, 4382, 4384 and 4389 Were carryovers from previous attempts to change grounding to bonding and were voted “Resolve” with statements such as: “Code-Making Panel 5 has jurisdiction over the definitions of "equipment grounding" and "equipment bonding" conductors, therefore,



addressing a change to these two definitions is outside the jurisdiction of Code-Making Panel 3. This issue was addressed in-depth during the 2005 NEC cycle.”

d) PI 4649 [New Section after 300.11] Recommended metallic supports be used in spaces above means of egress citing that emergency responders and building occupant safety is at risk during building fires because people can become entangled and trapped in cabling which has fallen out of molten or failing plastic supports/raceway.

Panel voted to resolve with a statement similar to: “The proposed text does not state what is being supported by metallic means above the path of egress. Article 300 provides requirements for wiring methods so inserting the proposed text requiring metallic means of support for all wiring methods above the path of egress would be excessive.

Cables covered in Article 725 for signaling, power-limited circuits, and remote control circuits, Article 760, fire alarm conductors and cables, and all communications cables and conductors in Chapter 8 are not covered by the requirements of 300.11, unless specifically required by these articles or Chapter 8.

This suggested change would necessitate a global change throughout the NEC and can only be dealt with initially by the NEC CC. Panel 3 requests the NEC CC appoint a task group to address this issue and also refer this to the Fire Protection Research Foundation for further research.”

I recommended opposing the panel decision to “Resolve” on this issue as a matter of safety, but it passed anyway. Hopefully, there will be research performed to bring it back in the future.

e) First Revision No. 601-NFPA 70-2015 [ Section No. 300.3(B)(1) ] (1) Paralleled Installations.

Conductors shall be permitted to be run in parallel in accordance with the provisions of 310.10(H). The requirement to run all circuit conductors within the same raceway, auxiliary gutter, cable tray, trench, cable, or cord shall apply separately to each portion of the paralleled installation, and the equipment grounding conductors shall comply with the provisions of 250.122. Parallel runs in cable tray shall comply with the provisions of 392.20(C).

Exception: Conductors installed in nonmetallic raceways run underground shall be permitted to be arranged as isolated phase, neutral, and grounded conductor installations. The raceways shall be installed in close proximity, and the isolated phase, neutral, and grounded conductors shall comply with the provisions of 300.20(B).

f) First Revision No. 608-NFPA 70-2015 [ Section No. 300.5(G) ] (G) Raceway Seals.

Conduits or raceways through which moisture may contact live parts shall be sealed or plugged at either or both ends. Spare or unused raceways shall also be sealed. Sealants shall be identified for use with the cable insulation, conductor insulation, bare conductor, shield, or other components.

Negative Comment: The word “identified” should be replaced with the word “approved”. Many sealants that are commonly used for this purpose are not identified as that term is defined in Article 100. There does not appear to be a UL standard that these products can be evaluated to regarding possible effects on conductors and their insulation. The AHJ should have the ability to approve sealants that have been used for many years without evidence of a problem. It is recommended that this word change from “identified” to “approved” be considered by CMP-4 in sections 225.27 and 230.8.



g) First Revision No. 616-NFPA 70-2015 [ Section No. 590.4(G) ] (G) Splices.

On construction sites, a box shall not A box, conduit body, or other enclosure, with a cover installed, shall be required for all splices or junction connections where except where:

(1) The circuit conductors being spliced are all from multiconductor cord or cable assemblies, provided that the equipment grounding continuity is maintained with or without the box. See 110.14(B) and 400.9. A box, conduit body, or terminal fitting having a separately bushed hole for each conductor shall be used wherever a change is made to a conduit or tubing system or a metal-sheathed cable system

(2) The circuit conductors being spliced are all from metal sheathed cable assemblies terminated in listed fittings that mechanically secure the cable sheath to maintain effective electrical continuity.

h) First Revision No. 617-NFPA 70-2015 [ Section No. 590.5 ] 590.5 Listing of Decorative Lighting.

Decorative lighting used for holiday lighting and similar purposes, in accordance with 590.3(B), shall be listed and shall be labeled on the product.

i) First Revision No. 618-NFPA 70-2015 [ Section No. 590.6(A)(1) ] (1) Receptacle Outlets Not Part of Permanent Wiring.

All 125-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets that are not a part of the permanent wiring of the building or structure and that are in use by personnel shall have ground-fault circuit-interrupter protection for personnel. Listed In addition to this required ground-fault circuit-interrupter protection for personnel, listed cord sets or devices incorporating listed ground-fault circuit-interrupter protection for personnel identified for portable use shall be permitted.

2) Motion Motion to support all First Revisions with the exception of 608-NFPA 70-2015 [Section No. 300.5(G)]

3) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to accept all FRs with the negative comment provided above

d) CMP-4, 2017 NEC First Draft Report Articles 225, 230, 690, 692, 694, 705

(Mark Gibbs, Principal, - Alternate Vacant)


a) Rapid shutdown Article 690.12: PI’s 957, 3003, 3659, 3723, 3792, 4090, 4215, 4287, and 4301

b) Article 690.12 - PV system circuits installed on or in buildings shall include a rapid shutdown function that controls specific conductors in accordance with 690.12(1 A ) through (5 E ) as follows.

(A) Controlled Conductors. Requirements for controlled conductors shall apply to PV system dc circuits and inverter output circuits supplied by the PV system. PV system dc circuits shall be controlled from all sources of supply, including energy storage or other dc power



sources, as applicable. PV inverter output circuits shall only be required to PV system conductors of more than 1.5 m (5 ft.) in length inside a building, or more than 3 m (10 ft.) from a PV array. Controlled conductors be controlled from the PV source.

(B) Controlled Limits. The use of the term, array boundary, in this section is defined as 30 cm (1 ft) from the array in all directions. Controlled conductors shall apply to 690.12 (B) (1) and (2) (1) Controlled conductors located outside the boundary or more than 1 m (3 ft) from

the point of entry inside a building shall be limited to not more than 30 volts within 10 seconds of rapid shutdown initiation. Voltage shall be measured between any two conductors and between any conductor and ground.

(2) Controlled conductors located inside the boundary or less than 1 m (3 ft) from the point of entry inside a building shall be limited to not more than 30 volts and 240 volt-amperes within 10 80 volts within 10 seconds of rapid shutdown initiation. Voltage and power Voltage shall be measured between any two conductors and between any conductor and ground. This requirement shall become effective January 1, 2018.

Informational Note: Inverter input circuit conductors can remain energized for up to 5 minutes with inverters not listed for rapid shutdown.

(C) Initiation Device. Where multiple PV systems are installed on a single service, a single device shall initiate the rapid shutdown of all PV systems on that service. Additional auxiliary initiation devices operating in accordance with rapid shutdown equipment listings shall be permitted. The rapid shutdown initiation methods shall be labeled in accordance with 690.56(C). Equipment that performs the rapid shutdown shall be listed and identified. Device shall comply with one of the following. (1) Where the PV system is connected in accordance with 705.12(D) and rapid

shutdown initiates upon loss of voltage from the utility, the service disconnecting means shall be the initiation device.

(2) Where the PV system is connected in accordance with 705.12(A) and rapid shutdown initiates upon loss of voltage from the utility, the PV system disconnecting means shall be the initiation device.

(3) Where rapid shutdown does not initiate upon loss of voltage from the utility, the initiation device shall be readily-accessible and clearly indicate whether the PV system is “off” or “on.” The initiation device shall be lockable in the “off” position.

Informational Note: 690.12(C)(3) would apply to, for example, a PV system with standby operation where conductors are not controlled upon loss of voltage from the utility.

(D) Manually Reset. When the rapid shutdown system is manually initiated the PV system shall not reset without manual intervention.

(E) Equipment. Equipment that performs the rapid shutdown functions, other than initiation devices such as listed disconnect switches, circuit breakers, or control switches, shall be listed, labeled, and identified for providing rapid shutdown protection.

(F) Marking. (1) The rapid shutdown initiation device shall have a sign complying with 690.56

located on or no more than 1 meter (3 ft.) from the device that includes the following wording: RAPID SHUTDOWN PV SYSTEM DISCONNECT

(2) If a rapid shutdown initiation device is not located near the service disconnecting means, a sign shall be installed at the service disconnecting means location, identifying the location of the initiation device.



Exception – Ground mount PV system circuits that enter buildings or structures, of which the sole purpose is to house PV power generating equipment, are not required to comply with 690.12.


a) None

3) Motion Motion to support all First Revisions

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to Support all Panel 4 FRs

e) CMP-5, 2017 NEC First Draft Report Articles 200, 250, 280, 285

(Daleep C Mohla, Principal, - Alternate Vacant) Note: Daleep C Mohla presented report (see attached)


a) P.I. 3681 Requested on P.I. 3681 that the NEC Correlating Committee provide a Public

o Comment on the use, application and correlation of voltages throughout the NEC

• On Fuel Gas piping- CSST

• CMP-5 asks the Correlating Committee to request that the Standards Council establish a Task group consisting of members of the NFPA 54 TC and members of CMP-5 and other NFPA 70 TC members to resolve conflicts between the standards with respect to grounding and bonding of fuel gas piping. The lack of correlation has created inconsistent and unclear requirements for enforcement and installers

• Changes to 250.122 (F) FR 1246 recognizes the installation of standard multiconductor cable in cable trays even though the internal equipment grounding conductors may be sized less than Table 250.122 where standard multiconductor cables are installed in a raceway or cable tray that is either suitable as the equipment grounding conductor or where a fully sized wire type equipment grounding conductor is provided in the raceway or cable tray.


a) Public Input # FR 1240 (Public Input 4797 on 250.187) IEEE statement opposing the First Revision: FR1240

CMP5 should reject this FR 1240. The substantiation provided does not validate mandatory installation of resistor monitoring relays on all resistors used in all over 1000 Volts systems. Installation of such devices is not prohibited by the Code and can be used by users if considered necessary.

There are thousands of neutral grounding resistors in operation in the Industry for over the last 50 plus years without any reported injury or fatality reported due to a failed resistor.

Submitter’s assertion of a safety hazard while checking the voltage to ground on ungrounded systems is not correct. This system is only allowed under 250.187 (1) where the conditions of maintenance and supervision ensure that only qualified persons service the installation.



Qualified persons working on over 600 Volts, and even under 600 Volts, systems are trained to check voltages from all phases to ground not just one phase to ground. NFPA 70E 120.1 (5) requires “ Use an adequately rated test instrument to test each phase conductor or circuit part to verify it is de-energized. Test each phase conductor or circuit part both phase-to-phase and phase-to-ground. Before and after each test, determine that the test instrument is operating satisfactorily through verification on a known voltage source.”

For example if the fault is on A phase to ground, Phases B and C to ground will indicate line to line voltage and phase A to phase B& C would indicate phase voltage.

Resistors like any other electrical equipment have to be maintained properly.

The following three cases were cited by the submitter in the paper referenced in the public input. (The complete cases are included at the end of this ballot).

Case A: Mine Safety and Health Administration Fatality Report: The following event occurred at an underground coal mine in Virginia on November 11, 1991. Several factors contributed to a fatality. The victim was not qualified to perform electrical work; the circuit was not locked and tagged out, a trailing-cable monitor was defeated, there was an existing ground-fault, and the NGR was open. The victim touched an exposed phase conductor with his bare hand several times and then grounded the exposed phase conductor against the mine rib in order to determine whether the cable was energized.

Case B. Soft Starter Failure: A soft starter manufacturer reported that its soft starters operated in an unexpected manner when an NGR was open.

The soft starter responded to reference pulses from each of the three line-to-ground voltage signals. With the neutral properly grounded, all three voltage signals are balanced. Failure of the NGR allows the neutral voltage to float and the three voltage signals to become unbalanced. The unbalanced voltages were interpreted by the soft starter as a single phase condition which caused a trip.

Case C. Loose Connections on an NGR In Canadian mining operations, continuous NGR monitoring is required. The following incident occurred at a mine in Eastern Canada on a 200 A, 4160 V NGR. The NGR monitoring relay tripped on a resistor fault. Upon inspection electricians noticed a loose connection on the NGR. By moving the loose connection the electricians were able to reset the resistor fault on the monitor and then cause the monitor to trip on resistor fault again. The loose connection was tightened and the rest of the NGR connections were inspected.

As it is evident that Neutral Grounding resistor (NGR) failure was not a cause of injury in any of the three cases.

In the first case, “Several factors contributed to a fatality. The victim was not qualified to perform electrical work, the circuit was not locked and tagged out, a trailing-cable monitor was defeated.

A NGR open alarm would not have compensated for lack of qualifications of the person.

In the second case, the soft starter tripped without any reported injury.

In the third case, even though no injury or fatality occurred, it was a question of incorrect installation (loose connection). Eight other loose connections were found and repaired indicating poor workmanship of installation.

It is possible it could have been caused by corrosion.

If not properly installed, loose connections can also result in an ungrounded system in a solidly grounded system.



Should we also mandate a connection integrity monitor alarm system on all solidly grounded systems also because a similar condition can occur?

Alarms are not a substitute for proper maintenance and qualification of persons working on the system.

Quite a few of the resistors on 2.4 KV and 5 KV systems are high resistance grounded systems with the complete resistor and its accessories located indoor thereby removing the corrosion as a likely cause. NFPA 70E mentions in Annex O high resistance grounding systems up to 5 kV Nominal to reduce the risk of arc flash

Many hundreds of neutral grounding resistors have been applied in the Industry in the medium voltage systems since the early 1960’s. Prior to that, most systems were either solidly grounded or ungrounded distribution systems. Ungrounded systems were preferred by preferred by the continuous process industry to minimize system interruptions. A High Resistance or low resistance neutral Grounding system offered the advantages of the solidly grounded and ungrounded electrical systems, highly reducing transitory over voltages due to intermittent ground faults that are characteristic in ungrounded systems and, at the same time, limiting the ground fault current to a pre-determined value, eliminating or greatly limiting the risk of single phase arc flash formation.

So there is no personnel safety concern with a grounded system (solidly or impedance grounded both) becoming ungrounded. Systems were operated for a long time as ungrounded Delta – Delta systems up to 5 KV nominal distribution systems. The system overcurrent protective device will trip if second fault happens on a different phase.

Equipment insulation protection vs. to high transient voltages caused by arcing faults is a significant area of concern for ungrounded systems.

Cases cited and conclusions in the technical paper referenced in the PI 4797. Conclusion by the author clearly states the concern of high transient voltages not safety due to an open resistor circuit (underlining is by the balloter)

A. Mine Safety and Health Administration Fatality Report: The following event occurred at an underground coal mine in Virginia on November 11, 1991. Several factors contributed to a fatality. The victim was not qualified to perform electrical work; the circuit was not locked and tagged out, a trailing-cable monitor was defeated, there was an existing ground-fault, and the NGR was open.

A loaded, cable-powered shuttle car was tramming away from a continuous mining machine when it’s cable-reel-motor drive chain came off the sprocket. The cable reel locked and the forward momentum of the tram pulled the portable power cable apart at a splice. The victim touched an exposed phase conductor with his bare hand several times and then grounded the exposed phase conductor against the mine rib in order to determine whether the cable was energized. The victim was then electrocuted when he contacted the energized conductor and the mine floor, by current flowing phase-to-phase though the existing ground fault, ground, and the victim [7].

There were several unsafe conditions that, had they been corrected, would have saved the victim; the primary of which is the failure to lock-out and tag-out the circuit breaker. Had the mine employed continuous NGR monitoring, the NGR-monitoring relay would have de-energized the circuit when the NGR opened.

B. Soft Starter Failure: A soft starter manufacturer reported that its soft starters operated in an unexpected manner when an NGR was open.

The soft starter responded to reference pulses from each of the three line-to-ground voltage signals. With the neutral properly grounded, all three voltage signals are balanced. Failure of the NGR allows the neutral voltage to float and the three voltage signals to become unbalanced. The unbalanced voltages were interpreted by the soft starter as a single phase condition which caused a trip. Upon studying the problem the



manufacturer concluded that the problem was due to unbalanced reference voltages. Through further study and customer interviews it was determined that an open NGR was responsible for the unbalanced reference voltages. Had the customer employed continuous NGR monitoring the open NGR would have been discovered before it caused problems with the soft starter.

C. Loose Connections on an NGR In Canadian mining operations, continuous NGR monitoring is required. The following incident occurred at a mine in Eastern Canada on a 200 A, 4160 V NGR. The NGR monitoring relay tripped on a resistor fault. Upon inspection electricians noticed a loose connection on the NGR. By moving the loose connection the electricians were able to reset the resistor fault on the monitor and then cause the monitor to trip on resistor fault again. The loose connection was tightened and the rest of the NGR connections were inspected. Eight other loose connections were found and repaired. The equipment was restarted and the resistor fault trip did not reoccur.

VIII. CONCLUSION The information presented here has shown that an open NGR is an undesirable situation. A system with an open NGR is subject to transient overvoltages and current-sensing ground-fault protection will not indicate the presence of a ground fault. A ground fault then remains on the system and might escalate to a phase-to-phase fault.

NGR’s are subject to failures related to thermal overload, lightning, storms, earthquakes, wildlife, extended service life, manufacturing defects, vibration, corrosion, and improper specification or installation.

A well-designed NGR monitor provides continuous protection against failures that previously rendered ground fault protection, coordination, and annunciation systems inoperative, as well as leaving the system exposed to damaging transient overvoltages. An NGR monitor provides confidence that current-sensing ground-fault protection will operate as designed on the next ground fault

3) Motion Motion to support all First Revisions except the following first revisions with the IEEE position statements listed above:

FR 1240 (Public Input 4797 on 250.187)

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to oppose PI 1240 with the statement provided above

f) NFPA 70E Standard for Electrical Safety in the Workplace® (Daleep Mohla Principal, - Paul Dobrowsky, Alternate)

Daleep Mohla reviewed IEEE-SA ER SCC 18 TC Report for NFPA 70E

• 2015 edition issued on July 14, 2014 with an effective date of July 29,2014 • 2018 edition open for public input • Public Input closing date 7/6/2015 • A few changes in 2015 edition

1. Protection strategy based on risk versus solely on hazard 2. Definition for Normal Operation added 3. Safety- related maintenance added in the scope to emphasize importance of

maintenance 4. Underground Mines are covered in 70E scope 5. Prohibited Approach boundary deleted



6. Equipment label requirements clarified 7. Arc Flash Hazard PPE Category table does not include whether gloves and

insulated tools are required for the task 8. Clarified that the owner of the equipment is responsible for labeling and

equipment maintenance

g) NFPA 79 Electrical Standard for Industrial Machinery® (Daleep Mohla, Principal – Alternate Vacant)

Daleep Mohla reviewed IEEE-SA ER SCC 18 TC Report for NFPA 79

• 2015 edition issued April 29, 2014 with an effective date of May 19, 2014 • 2018 edition not open for public input • 2105 edition a few changes ( This standard does not identify changes by shading or

vertical ruling like NEC and 70E) 1. Further aligned with IEC 60204-1 2. Definitions from various standards are in Annex J to help user understand the

difference. For example Bonding conductor from NFPA 70 in J.2 and Protective Bonding from IEC 60204-1 in J.3

3. Changed title from Protection Against Arc Flash to Arc Flash Hazard Warning to align with NEC 110.16 to clarify this sign is to warn , not to protect, personnel from arc flash hazard

h) Special Presentation (Chris Hunter) See attachment

i) CMP-6, 2017 NEC First Draft Report Articles 310, 400, 402, Chapter 9, Tables 5 through 9, and Annex B

(Ned Brush, Principal, - Alternate Vacant)


a) IEEE PI’s (6) not addressed by CMP 6

b) “Equipment grounding conductors” – change to bonding, agreed prior cycle by CMP 6, ONLY IF Panel 5 does so; Panel 5 did not do so. It was “inadvertently” changed, “in error”, and currently “needs to be changed back” to “grounding…”.

c) Edits, word clarifications, Table adjustments (where currently not properly aligned), citing adding “actual” would “add confusion” as “Code is well understood”, TG group recommendations followed on all TG recommendations with unanimous Committee acceptance votes (exception one item below).

d) Article 400 title change to “Flexible Cords and Flexible Cables”; this will “clear up any misconceptions that might lead one to believe that this article covers the cable wiring methods addressed in Chapter three”. Renumbering of Articles 400 and 402 to make “more user friendly” following pattern that “the .10 and .12 sections” provide “uses permitted and uses not permitted, respectively”. TG recommendations accepted unanimously here also.

2) Statements Opposing First Revisions IEEE statement opposing the First Revision: FR 1504

a) No. 1504-NFPA 70-2015 [Section No. 310.15 (B)(7)]



Code should not be modified from existing wording regarding 208Y/120V systems, where Hilton Head voting has it to be included “to harmonize”.

Background: Scott Cline, former Chair, e-mailed that “208Y/120V … generate heat at 150% compared to previously allowed 120/240V system”, and should NOT be included; they are being inadvertently included in current FR vote. Change is “unwarranted”; Bob Huddleston e-mailed - agreed. This should be discussed and appears to require further consideration. Neutral appears to have been inadequately considered for 208Y/120V systems in FR revised provisions, which cited that “120/208 will be added to 310.15(B)(7)”, as it will “contribute to harmonization of the NEC and CE Code requirements”.

IEEE statement opposing the First Revision: FR 1503 b) No. 1503-NFPA-70-2015 [Section No. 310.15(B)(3)];

Current Table should not be modified nor deleted from existing Code, (as requested by PI 3373), at least until a technically adequate, accredited reputable independent and statistically valid Fact Finding Study indicates modifications are appropriate.

Background: FR - “rooftop adders” were “deleted, with exception of wiring methods placed in direct contact with the roof surface”. Vote was 7 in favor to delete, 5 opposed (this was the only non-unanimous vote of the entire CMP-6 session). TG reviewed nine (9) related PI’s, had a 9-slide and UNV study presentation; however, these were not detailed technical studies and were very limited in design/scope. Original study that lead to this “rooftop adder” Code inclusion was designed by UL and extensive testing was conducted with many cable sizes/situations; it is described in peer-reviewed IEEE Transactions (IA). Current presentation indicated that prior study was correct, and that new results were also correct (this appears in-consistent). UNV report - the current testing was limited to 10 conduits, with only one conduit monitored with cable carrying current. It is important to have postulated heat/fluid flow “theory” thoroughly experimentally verified, as “boundary layers, interface resistances”, forced vs. natural convection, etc., can vary widely, and a thorough testing program is required to establish valid/correct results. The extent of elimination proposed does not appear scientifically supported based upon data provided and presented. Code changes should be considered only after a scientific study has been conducted and results indicate modifications are appropriate. Code should not be changed based upon one experimental data set/point. A well-designed, detailed scientific study with statistically significant experimental results that verify/validate postulated “theory”, (currently only one conduit example) pointing out how earlier Code should be modified (corrected/updated?), should be pursued.


1504-NFPA 70-2015 [Section No. 310.15 (B)(7)] Motion Failed No. 1503-NFPA-70-2015 [Section No. 310.15(B)(3)]; Motion to Oppose 1503 - Motion Failed on final vote - 12 to 4 against opposing 1503 after new information reviewed in SCC18 discussions

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all first revisions



j) CMP-7, 2017 NEC First Draft Report (Articles covered: 320, 322, 324, 326, 328, 330, 332, 334, 336, 338, 340, 382, 394, 396, 398 and 399)

(Dennis Nielsen, Principal, – Alternate Vacant)


a) 116 Public Inputs, 39 First Revisions

b) PI 1460, FR 1828 Panel vote 7-6; Article 338.10(B)(4) (For Type SE cable with ungrounded conductor sizes 10 AWG and smaller, where installed in thermal insulation, the ampacity shall be in accordance with 60°C (140°F) conductor temperature rating.)

c) PI 1116, 4359: FR 1840; Article 336.10 (9) In one- and two-family dwelling units, Type TC-ER cable containing both power and control conductors that is identified for pulling through structural members shall be permitted to be installed between a power inlet box or permanently installed generator and the transfer equipment. Type TC-ER cable used as exterior wiring shall be installed per the requirements of Part II of Article 340. Type TC-ER cable used as interior wiring shall be installed per the requirements of Part II of Article 334.

Informational Note to (9): TC-ER cable that is suitable for pulling through structural members is marked with “JP”

d) PI 2289, FR 1835; Article 396.2 Insulated Conductor

For the purposes of this article, an insulated conductor includes those listed in Article 310 and conductors encased in a polymeric material that has been evaluated for the applied nominal voltage.

Informational Note: Evidence of evaluation for the applied nominal voltage may be given by certification that the conductors have met the requirements of

ICEA S-76-474-2004 - Standard for Neutral Supported Power Cable Assemblies with Weather-Resistant Extruded Insulation Rated 600 Volts.

e) IEEE Affiliate PIs: 3007, FR 1836: Article 399.10 Informational Note: For additional information on outdoor overhead conductors over 1000 volts, see ANSI/IEEE C2-2007, National Electrical Safety Code and (ANSI/IEEE 3001.2, Recommended Practice for Evaluating the Electrical Service Requirements of Industrial and Commercial Power Systems.)

f) IEEE PIs: N/A

g) IEEE Stationary Battery Committee PIs: N/A


d) Public Input #(s): PI 2258 IEEE statement opposing the First Revision: FR1818

The inclusion of For life safety and critical branch circuits of the essential electrical systems in health care facilities where permitted by 517.30(C)(3)(1) and 517.30(C)(3)(3) in the uses permitted section is not typical. There is an “Information Note: The “Uses Permitted” is not an all-inclusive list.” and this inclusion does not provide additional technical use in application for the installation just more specific as to location(s). Article 517 is specific to Health Care Facilities and should list the type of cable for the system specified per CMP15 jurisdiction.



e) Public Input #(s): PI 2259 IEEE statement opposing the First Revision: FR1807

The inclusion of For life safety and critical branch circuits of the essential electrical systems in health care facilities where permitted by 517.30(C)(3)(1) and 517.30(C)(3)(3) in the uses permitted section is not typical. There was already an “Information Note: The “Uses Permitted” is not an all-inclusive list.” and this inclusion does not provide additional technical use in application for the installation just more specific as to location(s). Article 517 is specific to Health Care Facilities and should list the type of cable for the system specified per CMP15 jurisdiction.


a. FR 1818; Article 330.10(A) Type MC b. FR 1807; Article 320.10 Type AC

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all first revisions with the exception of FR 1818 and 1807 with the statements provided above.

k) CMP-8, 2017 NEC First Draft Report Articles covered: 342 – 392 except 382, Chapter 9, Tables 1 – 4, Example D13, and Annex C

(Paul Myers, Principal, - Alternate Vacant)

1) Noteworthy Panel Actions a) Accepted the change from 600 Volts to 1000 Volts. In some cases CMP-8

eliminated the voltage reference – example: for LFNC b) Public Input #(s): 2505, 2506, 2507, 2508, 2509, 2510, 2511, 2512, 2513, 2514,

2515, 2518, 2519, 2520, 2521, 2522, 2523, 2524, 2525, 2526, 2527, 2528, 2529, 2531, 2532, 2532, 2534, 2535

o These are the PIs associated with the change from “grounded” to “bonded” o All were resolved.


3) SCC-18 Panel Direction to IEEE-ER SCC-18 Directs the IEEE-ER to accept all revisions

l) CMP-9, 2017 NEC First Draft Report Articles 312, 314, 404, 408, 450, 490

(No Representation)

m) CMP-10, 2017 NEC First Draft Report Article 240 - Overcurrent Protection

(Dennis Darling, Principal, – Stephen Townsend Alternate) Note: Dennis Darling presented report


a) Section 240.87(B) – First Revision No. 2706



1. Add line that states “An instantaneous trip setting that is less than the available arcing current”.

2. Add line that states “An instantaneous override that is less than the available arcing current”.

b) New Section 240.67- First Revision No. 2707 Arc Energy Reduction for Fused Switches – Parallel the section on circuit breakers. Will not become effective until January 2020.


3) SCC-18 Panel Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all Firsr Revisions

n) CMP-11, 2017 NEC First Draft Report Articles 409, 430, 440, 460, 470 & Annex D Example D8

(Arthur J. Smith, III, Principal, – Alternate Vacant)


a) New Section after 409.22 - First Revision No. 3002 (PI 4421 and 4733) 409.23 Available Fault Current

When an industrial control panel is required to be marked with a short circuit current rating in accordance with 409.110(4), the available short circuit current at the industrial control panel and the date the short circuit current calculation was performed shall be documented and made available to those authorized to inspect the installation.

Committee Statement: This change provides much needed information to aid the electrical inspector when enforcing 409.22. It will help the inspector ensure that the industrial control panel is installed within its short-circuit current rating.

b) 409.110 - First Revision No. 3001 (PI 2255, 4293 and 1581) 409.110 Marking

An industrial control panel shall be marked with the following information that is plainly visible after installation: (1) Manufacturer's name, trademark, or other descriptive marking by which the

organization responsible for the product can be identified. (2) Supply voltage, number of phases, frequency, and full-load current for each incoming

supply circuit. (3) Industrial control panels supplied by more than one power electrical source such that

more than one disconnecting means is required to disconnect all power circuits within the control panel shall be marked to indicate that more than one disconnecting means is required to de-energize the equipment. The location of the means necessary to disconnect all circuits 50V and over shall be documented and available.

Note: The first draft also corrected the reference to ANSI-UL 508A Committee Statement:

This change addresses a gap in worker safety for voltages over 50V. The current wording warns a service technician that multiple sources of power are present, but provides no guidance in how to locate those sources of power. If an emergency arises which necessitates disconnection of power but the technician is unfamiliar with the facility there could be a risk to both personnel and property.



The error in the Informational Note has been corrected. UL 508A is the standard for industrial control panels that includes Supplement SB.

UL 508 is the standard for industrial control equipment.

c) New Section after 430.53(D) - First Revision No. 3015 (PI 1355) 430.53(D) (4)

Conductors from the point of the tap from the branch circuit to a listed manual motor controller additionally marked “Suitable for Tap Conductor Protection in Group Installations,” or to a branch-circuit protective device, shall be permitted to have an ampacity not less than one-third that of the branch-circuit conductors. The conductors from the controller to the motor shall have an ampacity in accordance with 430.22. The conductors from the point of the tap to the controller(s) shall (1) be suitably protected from physical damage and enclosed either by an enclosed controller or by a raceway and be not more than 7.5 m (25 ft) long or (2) have an ampacity not less than that of the branch-circuit conductors.

Committee Statement: The new subsection allows 25’ taps with the same conditions as is allowed in other areas of the NEC.

d) New Section after 430.98 - First Revision No. 3016 (PI 4712 and 4437) 430.99 Available Fault Current

The available short circuit current at the Motor Control Center and the date the short circuit current calculation was performed shall be documented and made available to those authorized to inspect the installation.

Committee Statement: Inspectors are having an extremely difficult time enforcing proper short circuit current ratings of Motor Control Centers because there is typically no information on the job site as to the available short circuit current at the Motor Control Center. If documentation of the available short circuit current were provided to the electrical inspector, it would be much easier for the inspector to assure that the equipment was being protected properly.

e) Section No. 430.130(A) - First Revision No. 3017 (PI 1356) (A) Circuits Containing Power Conversion Equipment.

Circuits containing power conversion equipment shall be protected by a branch-circuit short-circuit and ground-fault protective device in accordance with the following:

(1) The rating and type of protection shall be determined by 430.52(C)(1), (C)(3), (C)(5), or (C)(6), using the full-load current rating of the motor load as determined by 430.6.

(2) Where maximum branch-circuit short-circuit and ground-fault protective ratings are stipulated for specific device types in the manufacturer's instructions for the power conversion equipment or are otherwise marked on the equipment, they shall not be exceeded even if higher values are permitted by 430.130(A)(1).

(3) A self-protected combination controller shall only be permitted where specifically identified in the manufacturer’s instructions for the power conversion equipment or if otherwise marked on the equipment.

Informational Note: The type of protective device, its rating, and its setting are often marked on or provided with the power conversion equipment.

(4) Where an instantaneous trip circuit breaker or semiconductor fuses are permitted in accordance with the drive manufacturer’s instructions for use as the branch-circuit short-circuit and ground-fault protective device for listed Power Conversion Equipment, they shall be provided as an integral part of a single listed assembly incorporating both the protective device and power conversion equipment.



Committee Statement: The inclusion of the short circuit ground fault device within the power conversion equipment from the Manufacturer will assure the proper devices are installed.

f) New Section after 440.8 - First Revision No. 3005 (PI 836, 1325, 1800 and 4312) 440.9 Grounding and Bonding

Where multimotor and combination load equipment is installed outdoors on a roof, an equipment grounding conductor of the wire type shall be installed in outdoor portions of metallic raceway systems that use non-threaded fittings.

Committee Statement: Non-threaded conduit systems on rooftops supplying HVACR equipment are subject to movement and damage that results in separation of non-threaded conduit or tubing resulting in loss of equipment grounding unless a wire type equipment ground is provided. Rather than ban the use of EMT or non-threaded conduit on rooftops, as suggested by PI 1800, adding this requirement satisfactorily addresses the problem. The Panel does not agree with the exception for industrial installations with qualified persons as it does not assure the conduit on the roof will be inspected or observed on a regular basis any more than on a commercial roof.

g) New Section after 440.8 - First Revision No. 3007 (PI 4433 and 4697) 440.10 (B) Documentation.

When motor controllers or industrial control panels of multimotor and combination load equipment are required to be marked with a short circuit current rating, the available short circuit current and the date the short circuit current calculation was performed shall be documented and made available to those authorized to inspect the installation.

Committee Statement: Inspectors are having an extremely difficult time enforcing proper short-circuit current ratings of HVACR equipment because there is typically no information on the job site as to the available fault current at the HVACR equipment. If documentation of the available fault current were provided to the electrical inspector, it would be much easier for the inspector to assure that the equipment was being properly protected. This change provides that fault current information to the AHJ. Per Exception #3 to 440.4(B) this new requirement does not apply to one and two family dwellings or cord-and attachment-plug connected equipment. The Panel chose 440.10 so that it would be pain Part I, General

h) Section after 440.65 - First Revision No. 3021 (PI 1195) 440.65 Leakage-Current Detector-Interrupter (LCDI) and Arc-Fault Circuit Interrupter (AFCI) Protection Devices

Single-phase cord- and plug-connected room air conditioners shall be provided with one of the following factory-installed LCDI or AFCI protection. The LCDI or AFCI protection devices: (1) Leakage-Current Detector-Interrupter (LCDI) (2) Arc-Fault Circuit Interrupter (AFCI) (3) Heat Detecting Circuit Interrupter (HDCI) The protection device shall be an integral part of the attachment plug or be located in the power supply cord within 300 mm (12 in.) of the attach

Committee Statement: This change recognizes the addition of a new type of protection. The addition of an Informational Note describing an HDCI is not necessary





o) CMP-12, 2017 NEC First Draft Report Articles 610, 620, 625, 626, 630, 640, 645, 647, 650, 660, 665, 668, 669, 670, 685, and Annex D, Examples D9 and D10

(No Representation)

p) CMP-13, 2017 NEC First Draft Report Articles 445, 455, 480, 695, 700, 701, 702, 708, 750, Annex F, and Annex G

(Mario Spina, Principal, – William Cantor, Alternate) Note: Mario Spina presented CMP-12 report


a) None Noted


a) Public Input 3635: IEEE statement opposing the panel action:

The 2-inch requirement has been part of the NEC for many cycles and while the committee agrees that many factors play into the ability of concrete to transfer heat and that any prescriptive requirement which simply requires a thickness may not achieve a 2 hour rating removing this requirement will make enforcement extremely difficult.

b) Public Revision 3654: IEEE statement opposing the panel action:


c) Public Revision 3665: IEEE statement opposing the panel action:


d) Public Revision 3662: IEEE statement on the panel action:

IEEE requests that the Correlating Committee review the following FR#’s 3639,3641,3642,3664,3643,3644,3645,3646,3647,3648,3649 and 3650 and include those revisions into the first revision of Article 706.

e) Public Revision 3616 IEEE statement on the panel action:

Opposition to CMP-13 FR 3616

Facilities provide required scheduled maintenance in accordance with standards without any such requirements. The proposed change can be burdensome for many facilities



and imposes a requirement for permanent equipment to connect a portable generator which may never be used and can be accomplished by other means.

3) Motion Motion to support all First Revisions without comment except:

a. First Revision 3635 b. First Revision 3654 c. First Revision 3665 d. First Revision 3662 e. First Revision 3616

Motion to reject FR#’s 3616, 3635, 3654, 3665 & 3662 with SCC18 approved comment Motion to accept FR#3662 with the SCC18 approved comment

4) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all First Revisions with the exception of the following using the IEEE statements provided above.

a. First Revision 3635 b. First Revision 3654 c. First Revision 3665 d. First Revision 3662 e. First Revision 3616

q) CMP-14, 2017 NEC First Draft Report (Articles 500, 501, 502, 503, 504, 505, 506, 510, 511, 513, 514, 515, and 516)

(Will McBride, Principal, – Andrew Hernandez Alternate) Note: Will McBride presented CMP-14 report


a) CMP-14 Agreed to move the majority of the NEC definitions to Article 100

b) CMP-14 Did not concur to change to the term “grounding” to “bonding”


a) Public Input #: 1812 FR # 3920 Article 100 IEEE statement opposing the First Revision:

For this code cycle only, a cross-reference in 504.2 to be relocated definitions in Art 100 is recommended in this location for sustained usability. The code panel is moving the definition without leaving a trail where the definition is relocated to article 100 and will result in confusion for the use of this article. 500.2 should refer users of the code to see Article 100 for definitions formerly located in Section 500.2

b) Public Input #: 1862 FR # 3918 Article 100 IEEE statement opposing the First Revision:

For this code cycle only, a cross-reference in 500.2 to be relocated definitions in Art 100 is recommended in this location for sustained usability. The code panel is moving the definition without leaving a trail where the definition is relocated to article 100 and will result in confusion for the use of this article.



500.2 should refer users of the code to see Article 100 for definitions formerly located in Section 500.2

c) Public Input #: 1735 FR # 3929 500.2 IEEE statement opposing the First Revision:

For this code cycle only, a cross-reference in 500.2 to the relocated definitions in Art 100 is recommended in this location for sustained usability. The current plan will result in confusion for the use of this article. 500.2 should refer users of the code to see Article 100 for definitions formerly located in Section 500.2

d) Public Input #: 1462 FR# 3969 Article 501.105(A) IEEE statement opposing the First Revision:

Use of standard power plugs and receptacles should not be used for instrument connections. This may cause instrument malfunctions as the shielded circuits will not be continuous and promote confusion of power and instrumentation receptacles. Item (5) is recommended to be deleted as it provides nothing of value. Edit text as below:

(2) Connections. To facilitate replacement in industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, and where the cable is not subject to physical damage; meters, instruments and relays shall be permitted to be connected through Type TC-ER-HL cable, by means of attachment plugs and receptacles specifically identified for instrumentation, provided that all of the following conditions apply:

(1) Attachment plug and receptacle is listed for use in Class I, Division 1 locations and for use with TC-ER-HL cable and individual circuits limited to 5 amperes.

(2) The attachment plug and receptacle is interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated.

(3) Type TC-ER-HL cable is listed for use in Class I, Division 1 locations. (4) Type TC-ER-HL cable is installed in accordance with the provisions of Article 336,

including the restrictions of 336.10(7). (5) Delete this text

e) Public Input #: 1463 FR # 3967 Article 501.105(B)(6) IEEE statement opposing the First Revision:

This section is for instruments and relays and the current restriction for 3 Amp circuit should be maintained. Delete "if applicable" in (4), delete text in (5) as it adds no value, and delete (6) as the label exception introduces unnecessary hazards in a Division 2 location. (B) Class I, Division 2. (6) Connections. To facilitate replacements, process control instruments shall be

permitted to be connected through flexible cord, listed Type TC-ER cable or Type TC-ER-HL cable, by means of attachment plug, and receptacle specifically identified for instrumentation, provided that all of the following conditions apply:

(1) Attachment plug and receptacle is listed for use in Class I, Division 2 locations and for use with flexible cords, Type TC-ER cable or Type TC-ER-HL cable as applicable, and shall be of the locking and grounding type.

Exception: A Class I, Division 2 listing is not required if the circuit is nonincendive field wiring. (2) Unless the attachment plug and receptacle are interlocked mechanically, or

electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and



socket outlet are separated, a switch complying with 501.105(B) (2) is provided so that the attachment plug or receptacle is not depended on to interrupt current.

Exception: The switch is not required if the circuit is nonincendive field wiring. (3) The current does not exceed 3 amperes at 120 volts, nominal. (4) The flexible cord does not exceed 900 mm (3 ft), is of a type listed for extra-hard usage or for hard usage if protected by location, if applicable. (Delete this bold) (5) Type TC-ER cable or Type TC-ER-HL cable is installed in accordance with the provisions of Article 336, including the restrictions of 336.10(7), if applicable. (5) Only necessary receptacles are provided. (Delete this) (6) Unless the attachment plug and receptacle are interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, the instrumentation receptacle carries a label warning against plugging or unplugging under load. (Delete this)

f) Public Input #: 1461 FR # 3968 Article 505.17 IEEE statement opposing the First Revision:

Section 505.17(B) was only for controls and instruments and the requirements for power circuits should remain separate. The 3 Amp and 120 Volt limitation should remain for controls and instrumentation applications. A specific type of interlocked instrument receptacle that cannot be unplugged while energized should be required to eliminate the issues documented in the negative statements for FR 3967 and FR 3969. The requirements for controls and instrumentation and Power should not be comingled in the same section. The statement “only necessary receptacles” is vague and unenforceable The first revision should be modified as indicated below: 505.17 Flexible Cables, Cords, and Connections.

(A) Flexible Cords, Class I, Zones 1 and 2. A flexible cord shall be permitted for connection between portable lighting equipment or other portable utilization equipment and the fixed portion of their supply circuit. Flexible cord shall also be permitted for that portion of the circuit where the fixed wiring methods of 505.15(B) and (C) cannot provide the necessary degree of movement for fixed and mobile electrical utilization equipment in an industrial establishment where conditions of maintenance and engineering supervision ensure that only qualified persons install and service the installation, and where the flexible cord is protected by location or by a suitable guard from damage. The length of the flexible cord shall be continuous. Where flexible cords are used, the cords shall comply with the following: (1) Be of a type listed for extra-hard usage (2) Contain, in addition to the conductors of the circuit, an equipment grounding

conductor complying with 400.23 (3) Be connected to terminals or to supply conductors in an approved manner (4) Be supported by clamps or by other suitable means in such a manner that

there will be no tension on the terminal connections (5) Be terminated with a listed cord connector that maintains the type of

protection where the flexible cord enters boxes, fittings, or enclosures that are required to be explosionproof or flameproof

(6) Cord entering an increased safety “e” enclosure shall be terminated with a listed increased safety “e” cord connector.

Informational Note: See 400.7 for permitted uses of flexible cords. Electric submersible pumps with means for removal without entering the wet-pit shall be considered portable utilization equipment. The extension of the flexible cord within a suitable raceway between the wet-pit and the power source shall be permitted.



Electric mixers intended for travel into and out of open-type mixing tanks or vats shall be considered portable utilization equipment. Informational Note: See 505.18 for flexible cords exposed to liquids having a deleterious effect on the conductor insulation.

(B) Power and Connections for Zone 1. To facilitate replacement in industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, and where the cable is not subject to physical damage; power shall be permitted to be connected through Type TC-ER-HL cable, by means of attachment plugs and receptacles, provided that all of the following conditions apply: (1) Attachment plug and receptacle is listed for use in Class I, Zone 1 locations

and for use with TC-ER-HL cable. Exception: A Class I, Zone 1 listing is not required if the circuit type of protection is “ia”, “ib” or “ic”.

(2) Unless the attachment plug and receptacle are interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, a switch listed for the location is provided so that the attachment plug or receptacle is not depended on to interrupt current. Exception: A switch is not required if the circuit type of protection is “ia” or “ib”.

(3) Type TC-ER-HL cable is listed for use in Class I, Zone 1 locations. (4) Type TC-ER-HL cable is installed in accordance with the provisions of Article

336, including the restrictions of 336.10(7). (5) Only necessary receptacles are provided. (6) Unless the attachment plug and receptacle are interlocked mechanically, or

electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, the instrumentation receptacle carries a label warning against plugging or unplugging under load.

(C) Control and Instrumentation Connections for Zone 1. To facilitate replacement in industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, and where the cable is not subject to physical damage; control and instrumentation shall be permitted to be connected through Type TC-ER-HL cable, by means of attachment plugs and receptacles, provided that all of the following conditions apply:

(1) Attachment plug and receptacle is listed for use in Class I, Zone 1 locations and for use with TC-ER-HL cable.

Exception: A Class I, Zone 1 listing is not required if the circuit type of protection is “ia” or “ib”.

(2) Unless the attachment plug and receptacle are interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, a switch listed for the location is provided so that the attachment plug or receptacle is not depended on to interrupt current.

Exception: A switch is not required if the circuit type of protection is “ia” or “ib”.

(3) Type TC-ER-HL cable is listed for use in Class I, Zone 1 locations. (4) Type TC-ER-HL cable is installed in accordance with the provisions of

Article 336, including the restrictions of 336.10(7).

(D) Power Connections for Zone 2.



To facilitate replacements, process control, instruments and instrumentation shall be permitted to be connected through flexible cords, listed Type TC-ER cable or Type TC-ER-HL cable, by means of attachment plugs, and receptacles, provided that all of the following conditions apply: (1) Attachment plug and receptacle is listed for use in Class I, Zone 2 locations

and for use with flexible cords, Type TC-ER cable or Type TC-ER-HL cable as applicable, and shall be of the locking and grounding type. Exception: A Class I, Zone 2 listing is not required if the circuit type of protection is “ia”, “ib”, or “ic”.

(2) Unless the attachment plug and receptacle are interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, a switch listed for the location Zone 2 is provided so that the attachment plug or receptacle is not depended on to interrupt current, unless the circuit is type of protection “ia,” “ib,” or “ic”, in which case the switch is not required. Exception: A switch is not required if the circuit type of protection is “ia”, “ib”, or “ic”.

(3) The current does not exceed 3 amperes at 120 volts, nominal. (4) The flexible power-supply cord does not exceed 900 mm (3 ft), is of a type

listed for extra-hard usage or for hard usage if protected by location, if applicable.

(5) Type TC-ER cable or Type TC-ER-HL cable is installed in accordance with the provisions of Article 336, including the restrictions of 336.10(7), if applicable and is supplied through an attachment plug and receptacle of the locking and grounding type.

(6) Only necessary receptacles are provided. (7) Unless the attachment plug and receptacle are interlocked mechanically, or


(E) Control and Instrument Connections for Zone 2. To facilitate replacement of process control and instruments, instrumentation shall be permitted to be connected through flexible cords, listed Type TC-ER cable or Type TC-ER-HL cable, by means of attachment plugs, and receptacles, provided that all of the following conditions apply: (1) Attachment plug and receptacle is listed for use in Class I, Zone 2 locations

and for use with flexible cords, Type TC-ER cable or Type TC-ER-HL cable as applicable, and shall be of the locking and grounding type. Exception: A Class I, Zone 2 listing is not required if the circuit type of protection is “ia”, “ib”, or “ic”.

(2) Unless the attachment plug and receptacle are interlocked mechanically, or electrically, or otherwise designed so that they cannot be separated when the contacts are energized and the contacts cannot be energized when the plug and socket outlet are separated, a switch listed for the location Zone 2 is provided so that the attachment plug or receptacle is not depended on to interrupt current, unless the circuit is type of protection “ia,” “ib,” or “ic”, in which case the switch is not required. Exception: A switch is not required if the circuit type of protection is “ia”, “ib”, or “ic”.

(3) The current does not exceed 3 amperes at 120 volts, nominal. (4) The flexible power-supply cord does not exceed 900 mm (3 ft), is of a type

listed for extra-hard usage or for hard usage if protected by location, if applicable.



(5) Type TC-ER cable or Type TC-ER-HL cable is installed in accordance with the provisions of Article 336, including the restrictions of 336.10(7), if applicable and is supplied through an attachment plug and receptacle of the locking and grounding type.

(6) Only necessary receptacles are provided. (7) Unless the attachment plug and receptacle are interlocked mechanically, or


g) Public Input #: N/A(CMP-14) FR # 3930 Article 506.9(C)(2) IEEE statement opposing the First Revision:

Need to remove the addition of the words "or a specific dust or ignitable fiber/flying or a specific combination thereof". This creates confusion for the installers and inspectors. The specific dust that the device is approved for will not likely appear on the label and will be only in the documentation. Current product standards do not permit the listing of specific dusts.

h) Public Input #: N/A FR # 3986 Article 505.15(A) IEEE statement opposing the First Revision:

The additional text adds confusion and seems to add requirements that are beyond the use of ‘ia’ circuits for Class I, Zone 0 applications.

i) Public Input #s: 1250, 1906 & 4598 FR # 3940 Article 501.10(A) IEEE statement opposing the First Revision:

The unrestricted use of unarmored cable in Class I, Division 1 locations is not justified as electrical protection may be compromised.

The new text in (f) should be modified as follows:

(f) In industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, for applications limited to 600 volts, nominal, or less and where protected from damage by location or a suitable guard, listed Type TC-ER-HL cable with an overall jacket and a separate equipment grounding conductor(s) in accordance with 250.122 and installed in accordance with the provisions of Article 336.10 including the restrictions of 336.10(7) shall be permitted for the following applications:

(1) For applications limited to 150 volts, nominal, or less and limited to 30A circuit maximum.

(2) For applications above the limitations identified in (1), a metallic shield encompassing all the current carrying conductors of sufficient material and size that will provide a reliable ground fault path that will ensure the operation of a ground fault protection device shall be required.

j) Public Input #: 2591 FR # 3941 Article 501.10(B)(1) IEEE statement opposing the First Revision:

The wiring method "EMT" is not equivalent to existing approved wiring methods for use in Class I, Division 2 locations. There were no adequate substantiations provided with this proposal. There is no evidence to justify the lowering of standards for wiring practices in Class I, Division 2 areas. There were no restrictions for fittings; this method would not provide the positive grounding provisions in order to provide a reasonable degree of safety in hazardous locations. An application of a seal fitting with this material would not comply with the requirements of Article 358.12. The physical properties of this method is not sufficient to be installed in hazardous location The wall thickness of EMT is typically



less than half on the other wiring methods identified in this section. This use of this wiring method in Class I, Division 2 locations will lower the standard of safety.

k) Public Input #: 2246 FR # 3944 Article 503.10(A)(1) IEEE statement opposing the First Revision:

The use of non-shielded and non-metallic jacked MV cable should not be allowed in Class III, Division 1 locations. The substantiation for this proposal provided by a cable manufacturer "MV cable is allowed for Class I, Division 2 locations and should be allowed in Class III, Division 1 and 2 locations, as well" in not sufficient to lower the current standard of safety. Type MV Cable should have a more robust jacket if it is to be allowed in a Division 1 location; possibly a MV-ER-HL that has increased crush and impact requirements.

l) Public Input #: 614, 1908, & 4585 FR # 3945 Article 505.15(B)(1) IEEE statement opposing the First Revision:

The unrestricted use of unarmored cable in Class I, Zone 1 locations is not justified as electrical protection may be compromised.

The new text in (i) should be modified as follows:

(i) In industrial establishments with restricted public access, where the conditions of maintenance and supervision ensure that only qualified persons service the installation, for applications limited to 600 volts, nominal, or less and where protected from damage by location or a suitable guard, listed Type TC-ER-HL cable with an overall jacket and a separate equipment grounding conductor(s) in accordance with 250.122 and installed in accordance with the provisions of Article 336.10 including the restrictions of 336.10 (7) shall be permitted for the following applications:

(1) For applications limited to 150 volts, nominal, or less and limited to 30A circuit maximum.

(2) For applications above the limitations identified in (1), a metallic shield encompassing all the current carrying conductors of sufficient material and size that will provide a reliable ground fault path that will ensure the operation of a ground fault protection device shall be required.

f) FR 3997 cord connector, 100 (new), Cord Connector (as applied to Hazardous (Classified) Locations)

A fitting intended to terminate a cord or cable to a box or similar device and reduce the strain at points of termination and may include an explosionproof, a dust-ignition proof, or a flameproof seal.

IEEE statement opposing the First Revision: The term cord connector is used many times in the NEC for a wiring device. Defining that term differently for a product to be used in classified locations and also in unclassified locations is confusing.

3) Motion Motion to support all First Revisions except the following with the above IEEE Statement opposing the first revision: o PI # 1812, FR # 3920, Articles 100, 500.2, & 506.2 Direction to oppose with the above

statement o PI # 1862, FR # 3918, Articles 100 & 500.2 Direction to oppose with the above statement o PI # 1462, FR # 3969, Article 501.105(A) Direction to oppose with the above statement o PI # 1463, FR # 3967, Article 501.105(B)(6) Direction to oppose with the above statement o PI # 1461, FR # 3968, Article 505.17(B) Direction to oppose with the above statement o CMP-14, FR # 3930, Article 506.9(C)(2) Direction to oppose with the above statement o CMP-14, FR # 3986, Article 505.15(A) Direction to oppose with the above statement



o PI # 1250, 1906, & 4598, FR # 3940, Article 501.10(A) Direction to oppose with the above statement

o PI # 2591, FR # 3941, Article 501.10(B)(1) Direction to oppose with the above statement o PI # 2246, FR # 3944, Article 503.10(A)(1) Direction to oppose with the above statement o PI # 641, 1908, & 4598 FR # 3945, Article 505.15(B)(1) Direction to oppose with the

above statement o FR 3997 cord connector Direction to oppose with the above statement

5) SCC-18 Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all first revisions with the exception to oppose the following PIs with the negative statements provided above: o PI # 1812, FR # 3920, Articles 100, 500.2, & 506.2 o PI # 1862, FR # 3918, Articles 100 & 500.2 Direction to oppose with the above statement o PI # 1462, FR # 3969, Article 501.105(A) o PI # 1463, FR # 3967, Article 501.105(B)(6) o PI # 1461, FR # 3968, Article 505.17(B) o CMP-14, FR # 3930, Article 506.9(C)(2) o CMP-14, FR # 3986, Article 505.15(A) o PI # 1250, 1906, & 4598, FR # 3940, Article 501.10(A) o PI # 2591, FR # 3941, Article 501.10(B)(1) o PI # 2246, FR # 3944, Article 503.10(A)(1) o PI # 641, 1908, & 4598 FR # 3945, Article 505.15(B)(1) o FR 3997 cord connector

r) Adjourn for the day



Friday March 6th, 2015

s) CMP-15, 2017 NEC First Draft Report Articles 517, 518, 520, 522, 525, 530, 540

(Matthew Dozier, Principal, – Alternate Vacant)


a) A group of PI’s proposing the allowance of listed flexible cable (type HCF for hard use) as acceptable branch circuit wiring for emergency systems in patient care areas. These proposed changes were initially accepted by the panel for the 2014 Edition but eventually over-turned by floor vote at the annual meeting. This resubmitted proposal with additional substantiation was discussed in detail and eventually rejected by a small margin.

2) Motion Motion to support all First Revisions:


t) CMP-16, 2017 NEC First Draft Report Articles 770, 800, 810, 820, 830, 840

(William J. McCoy, Principal, – Alternate Vacant)


a) The title of the Scope of Article 770 was proposed to the Correlating Committee (CC) to be changed as shown below:

FR4508 - ARTICLE 770 Optical Fiber Cables and Raceways The reason for this proposed change is optical fiber raceways have been deleted from this article.

b) FR 4525, 4661, 4561, and 4602 - In Sections 770.100(B)(2), 800.100(B)(2), 820.100(B)(2) , and 830.100(B)(2) for Item 3 the following underlined wording was added.

(3) The power service accessible means external to enclosures using the options identified in the Exception of 250.94. If an Intersystem Bonding Termination is established, all the rules of 250.94 shall apply as covered in 250.94.

The intent of this added wording was to provide clarity to the user on the rules of establishing a intersystem bonding termination at a premises where the options in Section 250.94 Exception are not available.

c) FR4527 - The Informational Note No. 1 in Sections 770.100(D), 800.100(D), 810.18(A), 820.100(D), and 830.100(D) was modified as shown to correct the intention of reference to Section 250.60.

Informational Note No. 1: See 250.60 for connection to lightning protection system components air terminals (lightning rods).

d) FR4518 - The following Informational Note will be added to the definition of Communications Equipment in Article 100.



Informational Note: This definition clearly indicates that the dc power as well as computers are considered to be part of the communications equipment. As the telecommunications network transitions to a more data centric network, communications equipment will also include routers and servers essential to the transmission of audio, video, and data.

e) In Article 770 under Section 770.24 the following change was made to reference the user to all of Section 300.4. The feeling by CMP-16 was that since optical fiber cables are being used in applications other than telecommunications where life safety was involve that all of Section 300.4 should be referenced for mechanical execution of work.

770.24 Mechanical Execution of Work. Optical fiber cables shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed and installed so as not to damage the cable. The installation shall also conform with to 300.4(D) through (G) and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 800.170(C).

f) FR4546 - In Article 810 Section 810.15 was updated to reflect the zone of protection as shown below which includes the addition of the Informational Note.

810.15 Grounding. Masts and metal structures supporting antennas shall be grounded in accordance with 810.21, unless the antenna and its related supporting mast or structure are within a zone of protection defined by a 150 ft. (46 m) radius rolling sphere.

Informational Note: See NFPA 780-2014 Section 4.8.3.1 for theory of the term “rolling sphere”.

Affirmative comment: Informational Note: See NFPA 780-2014 Section 4.8.3.1 for theory of the term “rolling sphere” method.

Delete the words “theory of” and add “method as indicated above.

g) FR4594 - In Article 830 under Section 830.24 the following change was made to reference the user to additional parts of Section 300.4. The feeling by CMP-16 was that since the inclusion of PoE in the network broadband services, additional parts of 300.4 should be added for mechanical execution of work.

830.24 Mechanical Execution of Work. Network-powered broadband communications circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed and installed so as not to damage the cable. The installation shall also conform to 300.4 (A)(D)(E) and (F) and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 800.170(C).

h) FR4522 - For Section 770.49, 800.49, 820.49 and 830.49 the following changes were accepted as a First Revision.



Metallic Entrance Conduit Grounding. Rigid metal conduit (RMC) or intermediate metal conduit (IMC) Metallic conduit containing communications entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to a grounding electrode in accordance with 770.100(B) or 800.100(B) or 820.100(B) or 830.100(B) for the respective Section where the wording has been changed.

i) FR4582 - The biggest changes to Chapter 8 were created as First Revisions to Article 840. The first proposed change to Article 840 was the Scope. The following is what is being recommended as change to the Correlating Committee.

840.1 Scope. This article covers premises-powered optical fiber-based broadband communications systems. that provide any combination of voice, video, data, and interactive services through an optical network terminal (ONT).

Informational Note No. 1: A typical basic system configuration consists of an optical fiber, twisted pair or coaxial cable to the premises (FTTP) supplying a broadband signal to an a network terminal ONT that converts the broadband optical signal into component electrical signals, such as traditional telephone, video, high-speed internet, and interactive services. Powering of for the network terminal and network devices ONT is typically accomplished through a an ONT premises power supply that may be built into the network terminal or is provided as a separate unit. (OPSU) and battery backup unit (BBU) that derive their power input from the available ac at the premises. The optical fiber cable is unpowered and may be nonconductive or conductive. In order to To provide communications in the event of a power interruption, a battery backup unit or an uninterruptible power supply (UPS) is typically part of the powering system.

Informational Note No. 2: See 90.2(B)(4) for installations of premises-powered broadband communications systems that are not covered in this article.

The objective by proposing these reflective changes is to encompass all types of premises powered broadband services.

As a result the definition of an ONT was changed to be a definition of a Network Terminal as reflected in the following.

FR4586 - Optical Network Terminal (ONT). A device that converts an optical signal network provided signals (optical, electrical, or wireless) into component signals, including voice, audio, video, data, wireless, optical, and interactive services electrical, and is considered a network device(s) on the premises that is connected to a communications service provider and is powered at the premises.

Consequently there were other PIs to make the appropriate changes within Article 840 of replacing ONT with Network Terminal.

j) FR4627 - In Section 840.3 the following was added to address the classification electrical circuits and cables.

(G) Electrical Classification of Data Circuits and Cables. Sections 725.139(D)(1) and 800.133(A)(1)(c) shall apply to the electrical classification of Class 2 and Class 3 circuits in the same cable with communications circuits.



k) FR4643 - The following table is being inserted in Section 840.160(A) to address Power over Ethernet (PoE) applications in premises power broadband services.

Table 840.160(B A), Communications Conductor Ampacity Based on Copper Conductors at Ambient Temperature of 30°C (86°F), Conductor Temperature 60° C (140° F)

Conductor Size

(AWG)

Ampacity Of Each Conductor In A Single 4-Pair Multipair Communications Cable Installed Separated

From All Other Cables

Ampacity Of Each Conductor In A Multipair Communications Cable

When More Than One Cable Is Installed Together Or The Multipair

Cable Is Larger Than 4 Pairs 26 0.8 0.4 24 1.3 0.6 23 2.0 1.0 22 3.1 1.5

Affirmative Comment:

The ampacities for other than 30⁰C temperature ratings need to be addressed and requires additional research. Definition of separation and wiring methods must be addressed as part of the ratings.

l) FR4644 - Finally Section 840.170 was updated as follows.

840.170 Equipment and Cables. Premises-powered broadband communications systems equipment and cables shall comply with 840.170(A) through (IHD).

(A)Optical Network Terminal. The ONT network terminal and applicable grounding means shall be listed for application with premises-powered broadband communications systems.

Informational Note No. 1: One way to determine applicable requirements is to refer to UL 60950-1-2007, Standard for Safety of Information Technology Equipment: UL 498A-2008, Current Taps and Adapters; UL 467-2007, Grounding and Bonding Equipment ; or UL 62368-1-2014, Audio/Video, Information and Communication Technology Equipment – Part 1: Safety Requirements .

Informational Note No. 2: There are no requirements on the ONT network terminal and its grounding methodologies except for those covered by the listing of the product.

(B) Optical Fiber Cables. Optical fiber cables shall be listed in accordance with 770.179(A) through (D) and shall be marked in accordance with Table 770.179.

(C) Premises Communications Circuits. Premises communications wires and cables connecting to the ONT shall be listed in accordance with 800.179. Communications raceways associated with the premises-powered broadband communications system shall be listed in accordance with 800.182.

(C)Communications Equipment. Communications equipment shall be listed in accordance with 800.170.

(D) Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182.

(E) Premises Communications Wires and Cables. Communications wires and cables shall be listed and marked in accordance with 800.179.

(F) Communications Limited-Power Cables. Communications limited-power cables shall be listed as communications cables in accordance with 800.179 and shall also be listed as suitable for carrying communications circuits, and limited power



circuits as specified in with Table 840.160(A). Communications limited-power cable shall be marked CMP-LP, CMR-LP or CM-LP as applicable and shall also have the temperature rating and wire gauge marked on the cable.

(G D) Premises Community Antenna Television (CATV) Circuits. Premises community antenna television (CATV) coaxial cables connecting to the ONT network terminal shall be listed in accordance with 820.179. Applicable grounding means shall be listed for application with premises-powered broadband communications systems.

(H) Power Source. The power source for circuits intended to provide power over communications cables to remote equipment shall be limited in accordance with Table 11(B) in Chapter 9 for voltage sources up to 60 V dc and be listed as specified in 840.170(H)(1) or 840.170(H)(2):

(1) A power source shall be listed as specified in 725.121(A)(1), (A)(2), (A)(3) or (A)(4). The power sources shall not have the output connections paralleled or otherwise interconnected unless listed for such interconnection.

(2) A power source shall be listed as communications equipment for limited-power circuits.

Informational Note: One way to determine applicable requirements is to refer to ANSI/UL 60950, Safety of Information Technology Equipment; ANSI/UL 60950-1-2007, Standard for Safety of Information Technology Equipment-Safety-Part 1; or ANSI/UL 62368-1, Audio/Video, information and Communication Technology Equipment- Part 1: Safety Requirements. Typically such circuits are used to interconnect equipment for the purpose of exchanging information (data).

(I) Accessory Equipment. Communications accessory equipment and/or assemblies shall be listed for application with premises-powered communications systems.

Informational Note: One way to determine applicable requirements is to refer to UL 1863, Communications-Circuit Accessories.

2) Motion Motion to support all First Revisions with the affirmative statements provided above

3) SCC-18 Panel Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all first revisions

u) CMP-17, 2017 NEC First Draft Report Articles 422, 424, 425, 426, 427, 680, 682

(Chester Sandberg, Principal, – Alternate Vacant)

You tube Presentation - https://www.youtube.com/watch?v=mnWAfEba6XE due to conflict preventing Chet Sandburg from attending

1) Noteworthy Panel Actions I was on a “pre-work” task group that looked at Articles 424, 426 and 427. This was very productive and led to acceptance of most of the recommendations without issue in the general meeting in Hilton Head. TG-2 covered Heating Equipment Articles, 424, [425], 426, and 427. It was chaired by Mike Querry with IEC. Members included: Donny Cook, IAEI; Matt Williams, AHAM; Brian Myers, IBEW; Chet Sandberg, IEEE; Ken Shell, Copper Development; Tom Blewitt, UL

a) All 4 IEEE PI’s were accepted as proposed or in principle

b) All “Bonding/Grounding” and “Actual” PI’s were resolved as a group.


https://www.youtube.com/watch?v=mnWAfEba6XE


c) CMP-17 recommended adding a new Article: 425 The panel justified the addition of a new Article sighting the lack of specific criteria in Article 424 and 427 for specific electrical heating equipment for process applications. Article 424 applies to “Fixed Electric Space-Heating Equipment’ and Article 427applies to “Fixed Electric Heating Equipment for Pipelines and Vessels”. There is a significant amount of “process” equipment shown below in the Scope of 425 that is not included in 424 or 427.

d) PI by IEEE Standard 515.1 Secretary (John Turner) to insert fine print note

referencing 515.1 (IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Trace Heating for Commercial Applications).



e) IEEE CMP 17 PI to eliminate requirement for ground fault personnel protection Public Input No. 2240-NFPA 70-2014 [Section No. 426.32]

Input to remove “unworkable:” ground fault protection of people which trip point of 4 ma to 6 ma causes nuance tripping. Removes ground fault protection but still limits operating voltage to 30 volts ac.



f) IEEE CMP 17 PI to rename “heat tracing” to “trace heating” to conform to IEC standards

Public Input No. 2241-NFPA 70-2014 [Section No. 427.1]

Rename “Heat Tracing” to “Trace Heating” to harmonize with IEC



g) IEEE CMP 17 PI to remove confusion of marking requirements for factory assembled units.

Public Input No. 2242-NFPA 70-2014 [ Section No. 427.20 ]

Marking Requirements for Factory assembled heating units

The IEEE PI applies to “complete assemblies” and the UL representative noted that “some MI Cable constructions were designed to be used in series and thus could not be considered ‘a complete assembly’”. The committee considered this PI to be trying to differentiate between the requirement for markings for parallel and series cables. To that end “each” was replaced by “an” in the marking requirement to facilitate what we thought was the PI intention.



h) IEEE CMP 17 PI to eliminate requirement for ground fault personnel protection Public Input No. 2239-NFPA 70-2014 [Section No. 427.27]

Ground Fault protection of equipment replaced by ground fault protection of personal to allow operation without nuance tripping.



i) Articles 680 and 682 cover swimming pools, spas decorative fountains and like equipment. a) The acceptance of low voltage LED dc power has simplified and made safer numerous

applications for new installations

b) There are continual discussions on whether a “movable fiberglass spa” should be covered in 680 or covered as an appliance in 422. The coverage in 422 would simplify grounding requirements.

c) Listed low-voltage gas-fired electronically ignited luminaires and outdoor laminated lighting appliances are now available for fountains and some pools.


3) SCC-18 Panel Direction to IEEE-ER SCC-18 Directs the IEEE-ER to support all first revisions

v) CMP-18, 2017 NEC First Draft Report Articles 393, 406, 411, 600, 605

(Kurt Clemente, Principal, – Alternate Vacant) Note: Kurt Clemente presented CMP-18 report (see attached)

1) Noteworthy Panel Actions a) Numerous PIs themed “add Code requirement for UL listing and labeling”

o PI #5115 (section 410.6 – “All luminaires, lampholders, and retrofit kits shall be listed and labeled.”)

o PI #5130 (section 605.6 – “Lighting equipment shall be listed, labeled, and identified for use with office furnishings…”)

o PI #5134 (section 600.3 – fixed, mobile, or portable electric signs, outline lighting “…shall be listed and labeled…”)

o PI #5136 (section 600.4(A) – “Signs and outline lighting systems shall be listed and labeled…”)

o PI #5140 (section 600.22(A) – “Ballasts shall be identified for the use and shall be listed and labeled.”)

o PI #5141 (section 600.23(A) – “Transformers and electronic power supplies shall be identified for the use and shall be listed and labeled.”)

o PI #5143 (section 600.42(H) – “Electrode enclosures shall be listed and labeled.”) o PI #5146 (section 393.6 – “(1) Listed and labeled low-voltage utilization equipment” etc.,

total of 5x)

b) PI #5101 (section 406.3(D) (2)) and #5109 (section 406.6(C) addresses USB receptacles and integral night-light receptacles. These devices are not presently required to utilize Class 2 power supplies (with associated and UL 498 testing and listing). Code inspectors have reported confusion regarding whether these devices are permitted. This change will bring these emerging devices under the standard for receptacles.

c) PI #5119 (section 410.130(1) addresses the fluorescent luminaire disconnecting means. The change proposes to clarify that Exception No. 2 for emergency illumination is intended to apply to the entire luminaire and not just the single-lamp often used within a multi-lamp luminaire. Confusion over this exception was reported by the inspectors on this panel, with the potential for undesired disconnection of emergency lighting.

d) IEEE PIs themed “correct the use of the terms grounding and bonding in the Code” were poorly received. The CMP-18 discussion emphasized that users of the Code understand the how the wires are to be connected, and either do not need to know the proper terms or



understand the terms beyond the literal statements in the Code. Other arguments, such as the cost of re-training electricians, were interesting but not compelling. The discussions demonstrated (at least to me) that users of the Code do not understand the terms accurately – in particular, one panel member made the statement that a GEC connection to a ground rod was needed to clear faults!

All of the IEEE PIs submitted by Elliott were voted “no” with 1 dissenting vote (mine).



w) CMP-19, 2017 NEC First Draft Report Articles 545, 547, 550, 551, 552, 553, 555, 604, 675, and Annex D, Examples D11 and D12

(Don Zipse, Principal, - Alternate Vacant)


a) PI # 3523 547.10 Equipotential Planes and Bonding of Equipotential Planes


a) None



9. Other NFPA Reports Each ER will have a maximum of 5 minutes for his status and timeline report - may use PowerPoint if desired

a) NFPA 70B Recommended Practice for Electrical Equipment Maintenance (Vacant, Principal, - William Cantor, Voting Alternate)

Bill Cantor reviewed IEEE-SA ER SCC 18 TC Report for NFPA 70B – see attached report

NFPA 70B Report -2016 Revision Recommended Practice for Electrical Equipment Maintenance Brian K. Brecheisen – Principal (in transition) Bill Cantor – Voting Alternate The first draft meeting was held in San Antonio on March 12-14, 2014. Both IEEE representatives attended. All public inputs were categorized into seven groups, each with its own task group. 107 First Revisions were created. All of the SBC PIs were converted to First Revisions. IEEE voted affirmative on all first revisions. All FRs passed. All votes were unanimous except for two single negative votes on two different FRs. The second draft meeting was held via web conference on December 3, 2014. Both IEEE representatives attended. The IEEE voted affirmative on all eleven second revisions. All second revisions passed.



Noteworthy actions: Added several case studies to Annex Q There were significant discussions on 8.6.6 and 8.6.7. See FR and SR of these sections below

Figure 1 First Revision 8.6.6 and 8.6.7

Figure 2 Second Revision 8.6.6

Figure 3 Second Revision 8.6.7

There were many changes related to torquing of connections. Many references in the text were added that refer to section 8.11 which was added (with subsections). A snippit of section 8.11 is shown below.

Figure 4 First Revision of section 8.11



Numerous changes were made relating to stationary batteries. In many cases the existing wording was incorrect and/or incomplete. The changes were sponsored by the IEEE Stationary Battery Committee and were supported by the IEEE representatives.

b) NFPA 70E Standard for Electrical Safety in the Workplace® (Daleep Mohla, Principal - Paul Dobrowsky, Alternate)

See minutes under NEC reports

c) NFPA 79 Electrical Standard for Industrial Machinery® (Daleep Mohla, Principal – Alternate Vacant)

See Minutes under NEC reports

d) NFPA 73 Electrical Inspection Code for Existing Dwellings (Stephen L. Dyrnes, Principal, - Alternate Vacant)

No Report

10. Old Business (Ed Larsen - All) a) Status of approval of new P&Ps

Although the revised P&Ps passed in the last ballot, staff recommended responding to the comments received and conducting another recirculation. A recirculation ballot will be issued to the membership shortly. All revisions have been made and are ready for issue.

11. New Business (Ed Larsen) a) Reports to sponsors after vote direction provided by SCC-18

Each member is responsible for reporting to their sponsoring committee on the activities of SCC18 and their NFPA technical committee. Please mention that SCC18 has vacancies to fill.

b) Posting of First Draft and Panel Ballot - March 6, 2015

c) First Draft Ballots to NFPA must be submitted no later than - April 1, 2015 d) First Draft Ballot recirculation distribution – April 3, 2015 e) Final Date for Receipt of First Draft Ballot – Recirculate - April 10, 2015

f) Posting of First Draft for CC Meeting – April 17, 2015

g) Final date for CC First Draft Meeting – May 29, 2015

h) Posting of First Draft and CC Ballot - June 26, 2015

i) Proposals for 2017 NEC IEEE comments due no later than - July 27, 2015 Proposed comments must be submitted to Ed Larsen by an IEEE technical committee on the NFPA comment form.

j) Plan for nominations and election of officers Will take place after the P&Ps have been approved by the Standards Association Board.

k) Need to fill vacant positions The secretary and vice chair positions are currently vacant and need to be filled immediately. This is the last year Ed Larsen will serve as chair. Those willing to serve in these positions should contact Ed Larsen.



l) Recognitions – see attached PowerPoint presentation m) Other

12. Review Action Items

13. Meeting Critique a) What worked well? – Keep Doing

i. Word document for review and editing on screen during meeting ii. Hard copies of DRAFT document

iii. WebEx

b) What didn’t work well? - Stop doing i. Report submission too close to meeting date ii. Not seeing FR in report

c) What to change? i. Provide reports a week or two before meeting to allow generation of DRAFT meeting

minutes ii. Distribute DRAFT meeting minutes as soon as possible before meeting to allow time for

review iii. Provide FR and SR as part of the committee report iv. Download FRs for every panel and have available to display on screen v. Do not take a picture of FR to past in DRAFT work document for the following reasons:

1. Can’t read on screen during meeting 2. May make word document too large to e-mail. 3. Can’t modify “photo” embedded in document

14. Adjourn (Ed Larsen) Meeting adjourns 12:30 pm Friday March 6th, 2015



15. Action Items

Item Description Person

Responsible for

Completion

Target Completion

Date Comments

1 Review meeting minutes and provide responses no later than close of business Wednesday March 11, 2015 ALL Wednesday

2

3

4

5

6

16. Meeting adjourns 12:30 pm Friday March 6th, 2015 17. Attachments

a) Sign-in sheets

b) Committee Reports

c) January 3rd and 4th, 2013 meeting minutes


Documents

IEEE-SA ER SCC 18 Meeting March 5th and 6th, 2015 ...grouper.ieee.org/groups/scc18/NFPA_70_NEC/NFPA_70_NEC...IEEE-SA ER SCC 18 Meeting March 5th and 6th, 2015 Minutes IEEE-STANDARDS