2008 NEC Changes - Copy

7/31/2019 2008 NEC Changes - Copy

1/22

Standar PDE STP Chair PM PM Email NEC Reference

429

Jeff

DesJarlais

Diana

Pappas

Jordan Alan McGrath [email protected]

430.102(A), Exception 3. An exception permits

valve actuator motors to be provided with a

warning marking and provision for locking if the

valve will not be installed in sight of field

disconnect means.

429

Jeff

DesJarlais

Diana

Pappas

Jordan Alan McGrath [email protected] 430.2. Defines Valve Actuator Motors.

486

Jake

Killinger

Bradley

Schmidt

Marcia

Kawate [email protected]

250.8. Establishes basic requirements for

terminal connectors and means to connect

equipment for grounding and bonding.

489

Jeff

Hidaka

Bradley

Schmidt Patricia Sena [email protected]

610.31. Section 610.31 (Runway Conductor

Disconnecting Means) was revised to require

the The provision for locking or adding a lock

to the disconnecting means shall be installedon or at the switch or circuit breaker used as

the disconnecting means and shall remain in

place with or without the lock installed. Portable

means for adding a lock to the switch or circuit

breaker shall not be permitted as the means

required to be installed at and remain with the

equipment.
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2/22


3/22


4/22


639

Lou

Chavez

Sarah

Brooks Megan Cahill [email protected]

725,130(B) exception 3. Listing of intrusion

protection systems with bare, class 2

conductors

845

Jeff

Hidaka

Bradley

Schmidt Valara Davis [email protected]

200.2(B). Requires that a neutral (grounded)

system conductor be connected through

terminals and not to use the enclosure as part

of the current carrying path.

891

Robert

Osborne

Bradley

Schmidt Tim Corder [email protected]

110.20. Movement of enclosure environmental

types from Article 430 to Article 110. Inclusion

of switchboards, panelboards, industrial control

panels, motor control centers and meter

sockets.

At the January 2006 ROP Meetings, UL staff

and NEMA staff verified that Type 1 ratings had

been required in practice, although the wording

in some of the affected standards is not precise

in stating this.

891

Robert

Osborne

Bradley



system conductor be connected throughterminals and not to use the enclosure as part


891

Robert

Osborne

Bradley


519 (new section). New Article 519, "Control

Systems for Permanent Amusement

Attractions", was accepted by Panel 15 which

opens the door for new categories of industrial

control devices such as control panels for

these systems.

891

Robert

Osborne

Bradley

Schmidt Tim Corder [email protected]. Expanded requirements for capacity and

Ratings of optional standby systems.
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5/22


1008

Paul

Barnhart

Bradley

Schmidt

Esther

Espinoza [email protected]

700.9(D)(3). Added clause regarding control

conductors between transfer equipment and

the emergency generator.

1008

Paul

Barnhart

Bradley

Schmidt Tim Corder [email protected]. Expanded requirements for capacity and

Ratings of optional standby systems.

1042

Robert

Wozniak Joe Musso Mitch Gold [email protected]

406.11 Requires use of tamper resistant

receptacles

1042

Robert

Wozniak Joe Musso Mitch Gold [email protected]. Requires disconnecting means to be

rated 125% of total of disconnected loads.

1047

Joe

Murnane

Bradley

Schmidt Susan Malohn [email protected]

517.18(B) and 517.19(B)(2). In critical care

areas receptacles shall have an integral light

indicating the receptacle is powered or be part

of a listed headwall assembly that provides

indication of power to each receptacle.

1072

Tom

Cybula

Diana

Pappas

Jordan Camille Alma [email protected]

300.40. The change to the second paragraph

of 300.40 provides a more defined connection

requirement for shielding components to a

grounding conductor, to a grounding busbar, or

to a grounding electrode for shielded

conductors in excess of 600 volts, rather than

just that the shield be grounded.

1072

Tom

Cybula

Diana

Pappas


310.13. Three additional, larger sizes ofconductors were added to Table 310.13D.

Those sizes are as follows:1001 1250

kcmil1251 1500 kcmil1501 2000 kcmil.

1277

Tom

Cybula

Diana

Pappas


336.104. Added additional language which

permits Type TC to be provided with nickel or

nickel coated copper conductors.
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6/22


1569

Tom

Cybula

Diana

Pappas


330.104. Added additional language which

permits Type MC to be provided with nickel or

nickel coated copper conductors.

1598 Ed Joseph

Diana

Pappas

Jordan

Heather

Sakellariou [email protected]

410.16(A)(3). Permits LED or fluorescent

luminaires that qualify and are identified to be

installed within the defined storage space of a

clothes closet.

1684

George

Walbrecht

Diana

Pappas

Jordan Paul Lloret [email protected]

300.7(B), FPN. Information on new Table

355.44 for expansion characteristics for

reinforced thermosetting resin conduit (RTRC)

has been added.

An expansion and contraction formula has

been added to this FPN for aluminum conduit

and aluminum electrical metallic tubing.

1703

Tim

Zgonena

Bradley


690.31(B). (B) Single-Conductor Cable. Single-

conductor cable typeUSE-2, and single-

conductor cable listed and labeled

asphotovoltaic (PV) wire shall be permitted in

exposed outdoorlocations in photovoltaicsource circuits for photovoltaicmodule

interconnections within the photovoltaic

array.Exception: Raceways shall be used when

required by 690.31(A).

1703

Tim

Zgonena

Bradley


690.31(F). (F) Flexible, Fine-Stranded Cables.

Flexible, fine strandedcables shall be

terminated only with terminals,lugs, devices, or

connectors that are identified and listed forsuch

use.

1703

Tim

Zgonena

Bradley


690.33. (C) Type. The connectors shall be of

the latching or lockingtype. Connectors that are

readily accessible and that are used in circuits

operating at over 30 volts, nominal, maximum

system voltage for dc circuits, or 30 volts for

accircuits, shall require a tool for opening


7/22


1703

Tim

Zgonena

Bradley


690.33. (E) Interruption of Circuit. Connectors

shall be either (1)or (2): (1) Be rated for

interrupting current without hazard to the

operator.(2) Be a type that requires the use of

a tool to open and marked Do Not Disconnect

Under Load or Not for Current Interrupting.

1703

Tim

Zgonena

Bradley

Schmidt Susan Malohn

690.35. (C) Ground-Fault Protection. All

photovoltaic source and output circuits shall be

provided with a ground-fault protection device

or system that complies with (1) through (3):(1)

Detects a ground fault.(2) Indicates that a

ground fault has occurred(3) Automatically

disconnects all conductors or causes the

inverter or charge controller connected to thefaulted circuit to automatically cease supplying

power to output circuits.(D) The photovoltaic

source conductors shall consist of the

following:(1) Nonmetallic jacketed

multiconductor cables(2) Conductors installed

in raceways, or (3) Conductors listed and

identified as Photovoltaic (PV)Wire installed as

exposed, single conductors. (F) The

photovoltaic power source shall be labeled with

the following warning at each junction box,

combiner box, disconnect disconnect, anddevice where energized, ungrounded circuits

may be exposed during service:WARNING

ELECTRIC SHOCK HAZARD. THE DC

CONDUCTORS OF THIS PHOTOVOLTAIC

SYSTEM ARE UNGROUNDED AND MAY BE

ENERGIZED.(G) The inverters or charge

controllers used in systems with

ungrounded photovoltaic source.

1741

Tim

Zgonena

Bradley


690.31(F). (F) Flexible, Fine-Stranded Cables.

Flexible, fine strandedcables shall be

terminated only with terminals,lugs, devices, or

connectors that are identified and listed forsuch

use.
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8/22


9/22


2021

Robert

Wozniak Joe Musso Mitchell Gold [email protected]. Requires disconnecting means to be

rated 125% of total of disconnected loads.

2024

George

Walbrecht

Diana

Pappas


725.154(B) and (C) with changes in the 2005

NEC in 725.179(I), (J), and (K). General-

Purpose-signaling raceways, riser-signalingraceways, and plenum-signaling raceways

have been added in the last and in this Code

cycle.

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth

Sheppard [email protected]

250.35. Establishes requirements for a

bonding jumper between the generator and the

first disconnecting means.

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth

Sheppard [email protected] 445.18. Added lockable in the open position

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth


590.6, last sentence. A new last sentence has

been added to 590.6 stating that ground fault

protection for personnel shall apply to power

derived from an electric utility company or from

an on-site-generated power source.

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth


700.12(B)(6). Added reference to the

disconnecting means requirements for outdoor

generator sets.

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth


700.9(D)(3). Added clause regarding control

conductors between transfer equipment and

the emergency generator.
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10/22


2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth


701.11(B)(5). Added reference to the

disconnecting means requirements for outdoor

generator sets.

2200

Tim

Zgonena

Diana

Pappas

Jordan

Elizabeth


702.11. Added reference to the disconnecting

means requirements for outdoor generator

sets.

508A

John

Kovacik

Bradley

Schmidt Megan Cahill [email protected]


system conductor be connected through

terminals and not to use the enclosure as part


508A

John

Kovacik

Bradley


250.122(D)(2). Sets the sizing for the

equipment grounding conductor for motor

starter equipment with an instantaneous trip

circuit breaker or motor circuit protector.

508A

John

Kovacik

Bradley


519 (new section). New Article 519, "Control

Systems for Permanent Amusement

Attractions", was accepted by Panel 15 which

opens the door for new categories of industrial

control devices such as control panels for

these systems.

514A

George

Walbrecht

Bradley


250.146(A). Sets requirements for when wiring

device yoke is grounded by connection to anexposed work cover and a bonding jumper is

not required. Two fastners that provide good

security and the flat metal to metal cover

corner connection to the box.


11/22


514A

George

Walbrecht

Bradley


250.8(A)(6) Requires that thread forming

machine screw-type fasteners engage not less

than two threads

514D

George

Walbrecht

Bradley

Schmidt Beth Northcott [email protected]

406.4(D) Ex 2. This removes any material that

would hinder the complete seating of an

attachment plug of the type, intended for use

with the receptacle.

60601-1

Joe

Murnane

Bradley

Schmidt Barbara Davis [email protected]

517.160(A)(5). The isolated power systems

conductor identification colors for isolated

conductors 1, 2 and 3 (3 for 3-phase only) have

changed to the below:Isolated conductor no. 1

Orange with a distinctive colored stripe other

than white, green or gray.Isolated conductorno. 2 Brown with a distinctive colored stripe

other than white, green or gray.Isolatedconductor no. 1 Yellow with a distinctive

colored stripe other than white, green or gray.

6A

George

Walbrecht

Diana

Pappas


300.7(B), FPN. Information on new Table

355.44 for expansion characteristics for

reinforced thermosetting resin conduit (RTRC)

has been added.

An expansion and contraction formula has

been added to this FPN for aluminum conduit

and aluminum electrical metallic tubing.
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12/22

Comment

If UL 429 is revised to include valve

actuator motors, then additional wording

may help provide more design flexibility of

these products.

Revise the Standard to cover these

products.

No immediate change necessary but

questions have been raised about using

standard listed connectors vs. connectors

listed specifically for grounding and

bonding.

This additional requirement maypotentially affect current lock-off device

Listings within UL's Circuit Breaker

Accessories (DIHS) category and

requirements within sub-clause 14.8 of the

UL 489 standard. Some lock-off device

Listings may require review to determine

that they are not portable or removable

after installation. The Panel stated during

the meetings that they believe multiple

lock hasps are accessories and are not

affected by this requirement, i.e. thesedevices already comply with the intent of

this code change.

This wording was accepted for similar

disconnect device requirements

referenced in Articles 610, 620, 625, 647

& 665.


13/22

Comment

This additional requirement may

potentially affect current lock-off device



requirements within sub-clause 14.8 of theUL 489 standard. Some lock-off device






affected by this requirement, i.e. these

devices already comply with the intent of

this code change.

This wording was accepted for similardisconnect device requirements


& 665.





requirements within sub-clause 14.8 of the

UL 489 standard. Some lock-off deviceListings may require review to determine







this code change.



& 665.


14/22

Comment





requirements within sub-clause 14.8 of theUL 489 standard. Some lock-off device








this code change.



& 665

Need to verify the when these listed

assemblies are used. The terminal for the

equipment grounding conductor is

adequate.

The Listing evaluations of these type

devices need to take this into account

from a replacement and neutral loading

(e.g. will single component faults result in

harmonics) point of view for design and

installation instructions.

Opportunity for new industrial control

devices (control panels, power

distribution equipment, etc) that are

allowed under the new section


15/22

Comment

Although this has been a long standing

practice in the burglar alarm industry, it

may be helpful to incorporate this text or a

reference to it within UL 639.

These standards may need to be reviewedto ensure that when arranged for a neutral

supply that a neutral bus or terminals be

provided so that the enclosure is not used

in the neutral current carrying path.

Verify that Type I has been required to be

marked based on 49.21.1 and no action is

needed. Note the 11th Edition clearly

addresses this issue.

These standards may need to be reviewed

to ensure that when arranged for a neutral

supply that a neutral bus or terminals beprovided so that the enclosure is not used

in the neutral current carrying path.

Opportunity for certification of industrial

control devices (control panels, power



Will require automatic optional standby

systems to either be suitable for full load

on both sources, or have load

management system. This may require

standards revision.


16/22

Comment

Provisions must be made in transfer

switches for emergency and in generators

which may be used in emergency systems

to keep the generator control wiring

independent of all other wiring. This may

require standards revision.Will require automatic optional standby

systems to either be suitable for full load

on both sources, or have load

management system. This may require

standards revision.

Revise standard to indicate that if a

baseboard heater is provided with a

receptacle the receptacle shall be

tamperproof when the heater is installed in

a residential application.

Standards need to be revised to reflect

increased ampacity requirement for unit

switches serving as disconnecting means.

For KEWV, KEZR and KEXS equipment

the receptacles in critical care areas will

need to have power on indicators.

This change would provide a better

defined connection point for the ground

shield for high voltage cable and we may

want to incorporate

UL 1072, Table 1.1 will need to be revised

to reflect the larger size conductors now

allowed by the NEC. Specifically, the first

row, second column needs to be revised

to allow conductors up to 2000 kcmil.

Presently, UL 1277 requirements do not

address nickel or nickel coated copper

conductors. A standards change is

needed to allow this option.


17/22

Comment

Presently, UL 1569 requirements do not

address nickel or nickel coated copper

conductors. A standards change is

needed to allow this option.

Will require new performance, marking

requirements, Guide card and markingguide revisions. Due to the delay getting

revisions processed in this Trinational

Standard a CRD will be issued first so that

by end of first quarter 2008 certification

requirements will be in place.

Provides expansion and contraction

formulas for both raceway types.

UL should only allow use of PV wire,

USE2 cable or equivalent for general

outdoor PV modules.

Connectors need to be rated for the wire

type.

Since we have no control over installation

locations all PV connectors need to be

built such that they can only be opened

via the use of a tool.


18/22

Comment

Since we have no control over installation

locations all PV connectors need to be

built such that they can only be opened

via the use of a tool.

Need marking no disconnect under loadunless evaluated for disconnect under

load.

PV modules used in ungrounded arrays

need UL PV wire to comply.

Connectors need to be rated for the wire

type.


19/22

Comment

PV modules used in ungrounded arrays

need UL PV wire to comply.

May need to revise/ provide guidance on

minimum sizing of combined AC and DC

grounging.

This could require either OCP or product

evaluation for current limitation on both

sides of conductors between energy

storage and inverter / charger circuits.

Inverters with charger circuit may need

equalization voltage marking.


20/22

Comment

Standards need to be revised to reflect

increased ampacity requirement for unit

switches serving as disconnecting means.

These raceways are being used toenclose not only optical fiber cables but

also Class 2 and Class 3 cables of the

appropriate rating.

Where a listed generator is supplied with

a disconnecting means the bonding

jumper sized according to NEC would be

required.

Where a generator is not provided with an

integral disconnect, the disconnect isinstalled in the field and this clause

applies the field installation rather than the

generator itself. Generators provided with

integral disconnects shall have provisions

for locking the disconnect in the open

position. Possible revisions necessary to

standard.

This change helps bolster therequirements that GFCI protection for

personnel is required even for generator-

derived power.

Integral disconnecting means shall be

suitable for use as service equipment

when the generator is used in emergency

systems. This may require standards

revision

Provisions must be made in transfer

switches for emergency and in generators

which may be used in emergency systems

to keep the generator control wiring

independent of all other wiring. This may

require standards revision.


21/22

Comment

Integral disconnecting means shall be

suitable for use as service equipment

when the generator is used in legally

required standby systems. This may

require standards revision

Integral disconnecting means shall besuitable for use as service equipment

when the generator is used in emergency

systems. This may require standards

revision.

These standards may need to be reviewed

to ensure that when arranged for a neutral

supply that a neutral bus or terminals be

provided so that the enclosure is not used

in the neutral current carrying path.Need to verify the when these listed

assemblies are used, the terminal for the

equipment grounding conductor is

adequate.

Opportunity for new industrial control

devices (control panels, power



Confirm that covers meet these

requirements and that assemblies of

devices in these covers are correct.


22/22

Comment

Revise Clause 8.1.1( C)

Presently, UL 514D, para. 4.1.1 prohibits

a cover plate or outlet box hood that is

used with a receptacle shall not hinder the

complete seating of an attachment plug of

the type intended for use with the

receptacle.

For KEWV, KEYQ2 and KEXS equipment

the conductor identification colors will

need to change to those indicated.

Provides expansion and contraction

formulas for both raceway types.

Documents

2008 NEC Changes - Copy