1212212015 National Fire Protection Association Report

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[i.) second Revision No. 3617-NFPA 70-2015 [Section No. 445.11] NFP4

445.11 Marking.

Each generator shall be provided with a nameplate giving the manufacturer's name, the rated frequency, the number of phases if eJ.. ac, the rating in kilowatts or kilovolt­ampei'9S, the WNer factor. the normal volts and ampei'9S corresponding to the rating, 8AEI- the rated ambient temperature-eF. and the rated temperature rise.

Nameplates or manufacturer's instructions Shall provide the following information for all stationary generators and portable generators rated more than 15 kW,;. &Rail alse gi'lle tt:te f*Jl'Jer faeter, lRe 61:>1SlFaR&ieAt aAG lFaR&ieAt FeaetaR686, lRe FAaKiFAI:>IFA &Rert eiRJ~:>~it e~:>~RAt, aRa the iRs~:>~latieR sy&teffl elass. 8taieRaf)f aRa peReSie geR8Ritef6 shall 8e FflaAtea te iRaieate if the geR&fater is pR:Jteetea agaiR&t evel4eae &y iRh8NAt aesigR, aR e¥8f9i:!Reflt preteeti\-<:e R:Jiay, eiFei:iit Sf9aker, er f\:l&e.

(1) Subtransient. transient. synchronous. and zero seauence reactances

(2) Power rating category

(3) Insulation system class

(4) Indication if the generator is protected against overload by inherent design. an overcurrent protective relay. circuit breaker. or fuse

(5) Maximum short-circuit current tor inverter-based generators. in lieu of the synchronous. subtraosient. and transient reactances

Marking shall be provided by the manufacturer to indicate whether or not the generator neutral is bonded to its frame. Where the bonding is modified in the field, additional marking shall be required to indicate whether the neutral is bonded to the frame.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [Not Specified] Street Address: City:

State: Zip: Submittal Date: Moo Nov 0915:00:30 PST 2015

Committee Statement

Committee •power factor" has been relocated to the first paragraph of section 445.11 since it is Statement: common practice to mark this information on generators of all sizes.

Changes were accepted in the second paragraph to allow certain gen-set information to be placed in the manufacturers instructions rather than the nameplate.

"Synchronous" and "zero sequence" have been added to reactances since this information is also needed when modeling electrical systems.

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Response Message:

National Fire PrcXection Association Report

The term ''time-rating" was removed during the first draft stage but has been reinserted and renamed to "power rating category•. This change is necessary to clarify if the gen-set is intended for Prime, Continuous, Limited Time Running, or Emergency Standby Power use.

Public Comment No. 252-NFPA 70-2015 [Section No. 445.11]

Public Comment No. 325-NFPA 70-2015 [Section No. 445.11]

Public Comment No. 508-NFPA 70-2015 [Section No. 445.11]

Public Comment No. 1215-NFPA 70-2015 [Section No. 445.111

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[i.) second Revision No. 3618-NFPA 70-2015 [Section No. 445.13(8)] NFP4

(B) Overcurrent Protection Provided.

Where the generator set is equipped with a listed overcurrent protective device; iAeiYaiFif!l or a combination of a current transformer and overcurrent relay, conductors shall be permitted to be tapped from the load side of the protected terminals in accordance with 240.21(8).

Tapped conductors shall not be permitted for portable generators rated 15 lsW or less where field wiring connection terminals are not accessible.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [Not Specified] Street Address: City: State: Zip: Submittal Date: Men Nov 09 15:17:28 PST 2015

Committee Statement

Committee Field wiring connection points are not typically provided on portable generators Statement: rated 15 kW or less. These products are typically cord- and plug-connected.

Response Message:

Editorial revisions are made for clarity.

Public Comment No. 509-NFPA 70-2015 [Section No. 445.13(8)]

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[i.) second Revision No. 3614-NFPA 70-2015 [Section No. 445.14] NFP4

l 445.14 Protection of Uve Parts. ::J Live parts of generators operated at more than 50 volts ac or 60 volts de to ground shall not be exposed to accidental contact where accessible to unqualified persons.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [ Not Specified ] Street Address: City: State: ZJp: Submittal Date: Mon Nov 09 14:15:48 PST 2015

Committee Statement

Committee In response to Public Comment 1063, changes were made to certain sections Statement: under Panel13's purview to correlate with the use of the terms 50 volts AC and 60

volts DC. Response Message:

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[i.) second Revision No. 3619-NFPA 70-2015 [Section No. 445.18(A)] NFP4

(A) Disconnecting Means.

Generators other than cord- and plug-connected portable shall have one or more disconnecting means-D:MH. Each disconnecting means shall simultaneously disconnect aiJ its associated ungrounded conductors. Each disconnecting means shall be lockable in the open position in accordance with 110.25.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Mon Nov 0915:23:52 PST 2015

Committee Statement

Committee 445.18(A) has been revised to clarify that when multiple disconnects are installed Statement: on a gen-set each disconnect is only required to open its own specific set of

Response Message:

ungrounded conductors. Interlocking is not required.

Public Comment No. 784-NFPA 70-2015 [Section No. 445.18(A)]

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[i.) second Revision No. 3620-NFPA 70-2015 [Section No. 445.18(8)] NFP4

(B) Shutdown of Prime Mover.

Generators shall have provisions to shut down the prime mover. The means of shutdown shall comply with all of the following :

(1} Be equipped with provisions to disable all prime mover start control circuits to render the prime mover incapable of starting

(2} Initiate a shutdown mechanism that requires a mechanical reset

The provisions to shut down the prime mover shall be peanitted to satisfy the reguirements of 445.18(A) where it is capable of being locked in the open position in accordance with 110.25 ..

Generators with greater than 15 kW rating shall be provided with an additional requirement to shut dcr.vn the prime mover. +Ae This additional shutdown means shall be located outside the equipment room or generator vJeatAefPRl&f' f:let:~siAg eRelest:~Fe. enclosure and shall also meet The feEil:liFemeRt iR 446.18E8) shall 8e t:JeFFAiltee te satisfy the requirements of 446.18(A) WAeFe it is Gaf*lble er beiRg leekeG iR the ~eR f*JSitieA iA aeeereaA&e with 11Q.26 445.18(8)(1) and (8)(2).

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Moo Nov 0915:55:46 PST 2015

Committee Statement

Committee This revision clarifies that the general provisions to shut down the prime mover may Statement: satisfy the requirements in 445.18(A} under the given conditions. The additional

means located outside the equipment room is modified to meet the requirements of 445.18(BX1} and (BX2}.

Response Message:

Not all generator enclosures are weatherproof so this portion of the requirement has been removed.

Editorial revisions were made tor clarity.

Public Comment No. 1200-NFPA 70-2015 [Section No. 445.18(a)]

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[i.) second Revision No. 3621-NFPA 70-2015 [Section No. 445.20] NFP4

445.20 Ground-Fault Circuit-Interrupter Protection for Receptacles on 15-kW or Smaller Portable Generators.

All12e ¥Oit, siAgle pl=lase, 1&. anEI2Q.aFApete 196epia6le Receptacle outlets that are a part of a 15-kW or smaller portable generator eHAer-shall have ~ground-fault circuit­intenupter protection CGFCil for personnel integral to the generator or receptacle; er sAall Ret be w.o<ailable fer use ·.·.•heR the 126/260 ¥elt reeeptaele is iR use. If the geAer:ater eees Ret Aato'8 a 12i/26Q 'Jell Aile&f;ltaele, the Fef:tUiFeFAeRt te eisable the 126 'J&It, SiRgle pRaSe, 16 aAe 20 aFApeFe Feeeptaele ewtlets shall Ret af*ly. as inclicated in either (A) or (B):

(A) Unbonded (Floating Neutral) Generators.

Unbonded generators with both 125-vo!t and 1251250-vo!t receotacle outlets shall have listed GFCI protection for oersonnel intearal to the generator or receptacle on all125-volt and 15- and 2Q..ampere receptacle outlets.

Exception: GECI protection shall not be reqyicect where the 125-yolt cece.ptac/e outlets(iJ is intedock9d such that it is not available tor use when anY 1251250-yo/t f9Cepfacle(sJ is in use.

(B) Bonded Neutral Generators.

Bonded generators shall be provided with GECI protection on all125-yolt and 15- and 20-ampere receptacle outlets.

Informational Note: Refer to 590.6CAlC3l for GFCI requirements for 15-kW or smaller portable generators used for temoomry electric power and lighting.

Exception to (A) and (B): If the gene~ator was manufactured or remanufactured prior to January 1, 2015, listed cord sets or devices incorporating listed §lf!HIRfJ fa611t 9ileflit iRtemJf'ler !,ZBd. protection for personnel identified for pod able use shall be permitted.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [Not Specified] Street Address: City: State: Zip: Submittal Date: Men Nov 0916:49:40 PST 2015

Committee Statement

Committee It is necessary to separate the requirements for both bonded and unbonded Statement: generators. The requirements are different. Clarity is provided in new first level

subdivision (A) to clear1y require GFCI's at 125v, 15 and 20 amp only where both 125v and 12512501/ receptacles exist on the generator. The exception for GFCI's at 125v is maintained for unbonded generators that are inter1ocked to disable the 125v receptacles when the 1251250v receptacles are in use. Clarity is provided in (B) to r9quire that 125v, 15120 amp receptacles outlets in bonded generators are always

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1212212015

Response Message:

National Fire PrcXection Association Report

required to be GFCI protected. The present text misses that and has been corrected. The new infonnational note provides clarity by refening the code user to Article 590 for generators used in temporary power under the purview of Article 590. The exception is editorially modified to apply to both first level subdivisions.

Public Comment No. 956-NFPA 70-2015 [Section No. 445.201

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[i.Jsecond Revision No. 3628-NFPA 70-2015 [Section No. 480.1] NFP4

480.1 Scope.

This article applies to all stationary installations of storage batteries.

lnfonnational Note: The following standards are frequently referenced for the installation of stationary batteries:

(1) IEEE 484 29981EEE 484, Recommended Practice for Installation Design and Installation of Vented Lead-Acid Batt8fies for Stationary Applications

(2) IEEE 488 19971EEE 485, Recommended Ptaetice for Sizing Vented Lead­Acid Storage Batteries for Stationary Applications

(3) IEEE 114i 20071EEE 1145, Recommended Practice for Installation and Maintenance of Nickel-Cadmium Batteries for Photovo/taic (PV) Systems

(4) IEEE 118120021EEE 1187, Recommended Practice for Installation Design, and Installation of Valve-Regulated Lead-Acid Batteries for Stationary Applications

(5) IEEE 13751998 (Rev.~~ IEEE 1375, IEEE Guide for the Protection of Stationary Battery Systems

(6) IEEE 16'18-20071EEE 1578, Recommended Practice for Stationary Battery Electrolyte Spill Containment and Management

(7) IEEE 1836/A8HR.t.~E 21 29121EEE 1635/ASHRAE 21, Guide forthe Ventilation and Thermal Management of Batteries for Stationary 8afilely IM#allelieRB Applications

(8) UL 1973, Standard for Batteries for Use in Ught Electric Rail (LER) Applications and Stationary Applications

(9) UL Subject 2436, Outline of lnvestjgatjon for Spill Containment for Stationary Lead Acid Battey Systems

(10) UL 1989, Standard for Standby Batteries

Submitter Information Verification

Submitter Full Name: CMP 13

Organization: [Not Specified] Street Address: City: State: Zip: Submittal Date: Tue Nov 10 15:30:29 PST 2015

Committee Statement

Committee The documents referenced within the informational note provide common resources Statement: for stationary battery systems. The document titles were cOI'TeCted and the inclusion

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Response Message:

National Fire Protection Association Report

of a particular edition or publication date for these documents is removed since the applicability of this information is determined by the user.

Public Comment No. 167-NFPA 70-2015 [Section No. 480.1]

[i] Second Revision No. 3629-NFPA 70-2015 [New Section after 480.2 ] NFP.«

n480.3 Egujpment.

Storage batteries and batteN management equipment shall be listed. This reauirement shall not aooly to lead-acid batteries.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [Not Specified] Street Address: City:

State: Zip: Submittal Date: Tue Nov 10 16:36:25 PST 2015

Committee Statement

Committee This revision recognizes the need for third party evaluation of storage batteries and Statement: battery management equipment. This is necessary to provide the installer,

maintainer, and AHJ with necessary information and instructions for safe application of storage batteries.

Response MB&Sage:

Publjc Comment No, 1490-N FPA 70-2015 [New Definition after Defjnjtjon: TerminaU

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1W/2015 National Fire Prolec:tionAssocialion Report

[i.Jsecond Revision No. 3615-NFPA 70-2015 [Section No. 480.5] NFP4

480.6 Overcum:mt Protection for Prime Movers.

Overcunent protection shall not be required for conductors from a battery with a ReffliRal voltage of iQ §Q volts Q&... or less if the battery provides J)O'Ner for starting, ignition, or control of prime movers. Section 300.3 shall not apply to these conductors.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [ Not Specified ] Street Address: City: Stat.: Zip: Submittal Date: Mon Nov 09 14:16:54 PST 2015

Committee Statement

Committee In response to Public Comment 1063, changes were made to certain sections Statement: under Panel 13's purview to correlate with the use of the terms 50 volts AC and 60

volts DC. Response Message:

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[i.Jsecond Revision No. 3616-NFPA 70-2015 [Section No. 480.6(A)] NFP4

(A) Disconnecting Means.

A disconnecting means shall be provided for all ungrounded conductors derived from a stationary battery system with a ReFAiRal voltage over 00 §Q volts_m. A disconnecting means shall be readily accessible and located within sight of the battery system.

Informational Note: See 240.21(H) for information on the location of the overcurrent device for battery conductors.

Submitter Information Verification

Submitter Full Name: CMP 13 Organization: [Not Specified] Street Address: City: State: Zip: Submittal Date: Mon Nov 09 14:17:56 PST 2015

Committee Statement

Committee In t'8Sponse to Public Comment 1063, changes were made to certain sections Statement: under Panel13's purview to correlate with the use of the terms 50 volts AC and 60

volts DC. Response Message:

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