UFGS 26 23 00_Low-Voltage Switchgear.pdf

USACE / NAVFAC / AFCEC / NASA UFGS- 26 23 00 ( May 2015) Change 1 - 08/ 17 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 26 23 00 ( Jul y 2006)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2018

SECTI ON TABLE OF CONTENTS

DI VI SI ON 26 - ELECTRI CAL

SECTI ON 26 23 00

LOW- VOLTAGE SWI TCHGEAR

05/15

PART 1 GENERAL

1. 1 REFERENCES

1. 2 RELATED REQUI REMENTS

1. 3 DEFI NI TI ONS

1. 4 SUBMI TTALS

1. 5 QUALI TY ASSURANCE

1. 5. 1 Pr oduct Dat a

1. 5. 2 Swi t chgear Dr awi ngs

1. 5. 3 Regul at or y Requi r ement s

1. 5. 4 St andar d Pr oduct s

1. 5. 4. 1 Al t er nat i ve Qual i f i cat i ons

1. 5. 4. 2 Mat er i al and Equi pment Manuf act ur i ng Dat e

1. 6 MAI NTENANCE

1. 6. 1 Swi t chgear Oper at i on and Mai nt enance Dat a

1. 6. 2 Assembl ed Oper at i on and Mai nt enance Manual s

1. 6. 3 Spar e Par t s

1. 7 WARRANTY

PART 2 PRODUCTS

2. 1 PRODUCT COORDI NATI ON

2. 2 SWI TCHGEAR

2. 2. 1 Rat i ngs

2. 2. 2 Const r uct i on

2. 2. 2. 1 Encl osur e

2. 2. 2. 2 Bus Bar s

2. 2. 2. 3 Mai n Sect i on

2. 2. 2. 4 Di st r i but i on Sect i ons

2. 2. 2. 5 Auxi l i ar y Sect i ons

2. 2. 2. 6 Handl es

2. 2. 3 Pr ot ect i ve Devi ce

2. 2. 4 Dr awout Br eaker s

2. 2. 5 Remot e Racki ng

2. 2. 6 El ect r oni c Tr i p Uni t s

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2. 2. 7 Met er i ng

2. 2. 7. 1 Di gi t al Met er s

2. 2. 7. 2 El ect r oni c Wat t hour Met er

2. 2. 7. 3 Submet er i ng

2. 2. 8 Tr ansf or mer

2. 2. 9 Heat er s

2. 2. 10 Ter mi nal Boar ds

2. 2. 11 Wi r e Mar ki ng

2. 3 MANUFACTURER' S NAMEPLATE

2. 4 FI ELD FABRI CATED NAMEPLATES

2. 5 SOURCE QUALI TY CONTROL

2. 5. 1 Equi pment Test Schedul e

2. 5. 2 Swi t chgear Desi gn Test s

2. 5. 2. 1 Desi gn Test s

2. 5. 2. 2 Addi t i onal Desi gn Test s

2. 5. 3 Swi t chgear Pr oduct i on Test s

2. 5. 4 Cyber secur i t y Equi pment Cer t i f i cat i on

2. 6 COORDI NATED POWER SYSTEM PROTECTI ON

2. 7 ARC FLASH WARNI NG LABEL

2. 8 SERVI CE ENTRANCE AVAI LABLE FAULT CURRENT LABEL

2. 9 MI MI C BUS LABELI NG

PART 3 EXECUTI ON

3. 1 I NSTALLATI ON

3. 2 GROUNDI NG

3. 2. 1 Gr oundi ng El ect r odes

3. 2. 2 Equi pment Gr oundi ng

3. 2. 3 Connect i ons

3. 2. 4 Gr oundi ng and Bondi ng Equi pment

3. 3 I NSTALLATI ON OF EQUI PMENT AND ASSEMBLI ES

3. 3. 1 Swi t chgear

3. 3. 2 Met er s and I nst r ument Tr ansf or mer s

3. 3. 3 Fi el d Appl i ed Pai nt i ng

3. 3. 4 Gal vani z i ng Repai r

3. 3. 5 Fi el d Fabr i cat ed Namepl at e Mount i ng

3. 4 FOUNDATI ON FOR EQUI PMENT AND ASSEMBLI ES

3. 4. 1 Ext er i or Locat i on

3. 4. 2 I nt er i or Locat i on

3. 5 FI ELD QUALI TY CONTROL

3. 5. 1 Per f or mance of Accept ance Checks and Test s

3. 5. 1. 1 Swi t chgear

3. 5. 1. 2 Ci r cui t Br eaker s - Low Vol t age - Power

3. 5. 1. 3 Cur r ent Tr ansf or mer s

3. 5. 1. 4 Met er i ng and I nst r ument at i on

3. 5. 1. 5 Gr oundi ng Syst em

3. 5. 1. 6 Cyber secur i t y I nst al l at i on Cer t i f i cat i on

3. 5. 2 Fol l ow- Up Ver i f i cat i on

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 26 23 00 Page 2

USACE / NAVFAC / AFCEC / NASA UFGS- 26 23 00 ( May 2015) Change 1 - 08/ 17 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 26 23 00 ( Jul y 2006)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2018

SECTI ON 26 23 00

LOW- VOLTAGE SWI TCHGEAR

05/15

NOTE: Thi s i s a r evi sed gui de speci f i cat i on t hat , i n par t , r epl aces 26 23 00, SWI TCHBOARDS AND SWI TCHGEAR. The or i gi nal gui de speci f i cat i on was separ at ed i nt o t wo speci f i cat i ons: 26 23 00, LOW- VOLTAGE SWI TCHGEAR, and 26 24 13, SWI TCHBOARDS.

Thi s gui de speci f i cat i on cover s t he r equi r ement s f or met al - encl osed l ow- vol t age power c i r cui t - br eaker swi t chgear assembl i es i n ei t her i nt er i or or ext er i or l ocat i ons. Thi s gui de speci f i cat i on i s i nt ended f or al t er nat i ng cur r ent appl i cat i ons; addi t i onal edi t i ng wi l l be necessar y t o t ai l or i t f or di r ect cur r ent applications.

Per UFC 3- 520- 01, speci f y met al - encl osed swi t chgear f or ser vi ce ent r ance equi pment onl y when t he ser vi ce i s 1200 amper es or l ar ger , and al l br anch and f eeder c i r cui t s ar e l ar ge, such as 600 amper es or 800 amper es each. Speci f y swi t chboar ds i n accor dance wi t h 26 24 13 SWI TCHBOARDS f or ser vi ce ent r ance equi pment when t he ser vi ce i s 1200 amper es or l ar ger , and br anch and f eeder c i r cui t s ar e combi ned si zes f r om 20 amper es up t o 800 amper es. Ut i l i ze swi t chboar ds t hr oughout t he di st r i but i on syst em wher e f eeder s ar e 1200 amper es or l ar ger .

When t he pr oposed swi t chgear i s connect ed t o a secondar y uni t subst at i on, coor di nat e wi t h Sect i on

26 11 16 SECONDARY UNI T SUBSTATI ONS.

Thi s speci f i cat i on i s not i nt ended t o be used f or gener at or cont r ol swi t chgear wi t hout ext ensi ve modi f i cat i on and coor di nat i on wi t h appl i cabl e engi ne- gener at or set gui de speci f i cat i ons.

Adher e t o UFC 1- 300- 02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by

SECTI ON 26 23 00 Page 3 addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e present.

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Cr i t er i a Change Request ( CCR) .

NOTE: Ver i f y t hat t he f ol l owi ng i nf or mat i on i s i ndi cat ed on t he pr oj ect dr awi ngs:

1. Si ngl e- l i ne di agr am showi ng buses and i nt er r upt i ng devi ces wi t h i nt er r upt i ng capaci t i es;

cur r ent t r ansf or mer s wi t h r at i ngs; i nst r ument s and met er s r equi r ed; and descr i pt i on of i nst r ument s and meters.

2. Locat i on, space avai l abl e, ar r angement , and el evat i ons of swi t chgear .

3. Gr oundi ng pl an.

4. Type and number of cabl es, s i ze of conduct or s f or each power c i r cui t , and poi nt of ent r y ( t op or bottom).

5. Speci al condi t i ons, such as al t i t ude, t emper at ur e and humi di t y, exposur e t o f umes, vapor s, dust , and gases; and sei smi c r equi r ement s.

6. Ar c f l ash l abel r equi r ement s. Downl oad t he l abel f or mat at http://www.wbdg.org/FFC/NAVGRAPH/graphtoc.pdf .

7. Avai l abl e f aul t cur r ent l abel f or ser vi ce ent r ance equi pment . Downl oad t he l abel f or mat at http://www.wbdg.org/FFC/NAVGRAPH/graphtoc.pdf .

8. Locat i ons wi t h ar c ener gy r educt i on met hods specified.

PART 1 GENERAL

1. 1 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

SECTI ON 26 23 00 Page 4

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e when you add a Ref er ence I dent i f i er ( RI D) out s i de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN NATI ONAL STANDARDS I NSTI TUTE ( ANSI )

ANSI C12. 1 ( 2008) El ect r i c Met er s Code f or El ect r i c i t y Met er i ng

AMERI CAN SOCI ETY OF HEATI NG, REFRI GERATI NG AND AI R- CONDI TI ONI NG

ENGI NEERS ( ASHRAE)

ASHRAE 90. 1 - I P ( 2013) Ener gy St andar d f or Bui l di ngs Except Low- Ri se Resi dent i al Bui l di ngs

ASTM I NTERNATI ONAL ( ASTM)

ASTM A123/ A123M ( 2017) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM A153/ A153M ( 2016) St andar d Speci f i cat i on f or Zi nc Coat i ng ( Hot - Di p) on I r on and St eel Hardware

ASTM A240/ A240M ( 2017) St andar d Speci f i cat i on f or Chr omi um and Chr omi um- Ni ckel St ai nl ess St eel Pl at e, Sheet , and St r i p f or Pr essur e Vessel s and f or Gener al Appl i cat i ons

ASTM A653/ A653M ( 2017) St andar d Speci f i cat i on f or St eel Sheet , Zi nc- Coat ed ( Gal vani zed) or Zi nc- I r on Al l oy- Coat ed ( Gal vanneal ed) by t he Hot - Di p Pr ocess

ASTM A780/ A780M ( 2009; R 2015) St andar d Pr act i ce f or Repai r of Damaged and Uncoat ed Ar eas of Hot - Di p Gal vani zed Coat i ngs

ASTM D149 ( 2009; R 2013) Di el ect r i c Br eakdown Vol t age and Di el ect r i c St r engt h of Sol i d El ect r i cal I nsul at i ng Mat er i al s at Commer ci al Power Fr equenci es

ASTM D1535 ( 2014) Speci f y i ng Col or by t he Munsel l

SECTI ON 26 23 00 Page 5

System

ASTM D709 ( 2017) St andar d Speci f i cat i on f or Lami nat ed Ther moset t i ng Mat er i al s

I NSTI TUTE OF ELECTRI CAL AND ELECTRONI CS ENGI NEERS ( I EEE)

I EEE 100 ( 2000; Ar chi ved) The Aut hor i t at i ve Di ct i onar y of I EEE St andar ds Ter ms

I EEE 81 ( 2012) Gui de f or Measur i ng Ear t h Resi st i v i t y, Gr ound I mpedance, and Ear t h Sur f ace Pot ent i al s of a Gr ound Syst em

I EEE C2 ( 2017; Er r at a 1- 2 2017; I NT 1 2017) Nat i onal El ect r i cal Saf et y Code

I EEE C37. 13 ( 2015) St andar d f or Low- Vol t age AC Power Ci r cui t Br eaker s Used i n Encl osur es

I EEE C37. 20. 1 ( 2015) St andar d f or Met al - Encl osed Low- Vol t age Power Ci r cui t - Br eaker Switchgear

I EEE C37. 20. 7 ( 2017) Gui de f or Test i ng Met al - Encl osed Swi t chgear Rat ed Up t o 38 kV f or I nt er nal Ar ci ng Faul t s

I EEE C37. 90. 1 ( 2013) St andar d f or Sur ge Wi t hst and Capabi l i t y ( SWC) Test s f or Rel ays and Rel ay Syst ems Associ at ed wi t h El ect r i c Power Appar at us

I EEE C57. 12. 28 ( 2014) St andar d f or Pad- Mount ed Equi pment

- Encl osur e I nt egr i t y

I EEE C57. 12. 29 ( 2014) St andar d f or Pad- Mount ed Equi pment

- Encl osur e I nt egr i t y f or Coast al Environments

I EEE C57. 13 ( 2016) Requi r ement s f or I nst r ument Transformers

I NTERNATI ONAL ELECTRI CAL TESTI NG ASSOCI ATI ON ( NETA)

NETA ATS ( 2017; Er r at a 2017) St andar d f or Accept ance Test i ng Speci f i cat i ons f or El ect r i cal Power Equi pment and Syst ems

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

NEMA I CS 6 ( 1993; R 2016) I ndust r i al Cont r ol and Syst ems: Encl osur es

NEMA LI 1 ( 1998; R 2011) I ndust r i al Lami nat i ng Ther moset t i ng Pr oduct s

NEMA ST 20 ( 1992; R 1997) St andar d f or Dr y- Type Tr ansf or mer s f or Gener al Appl i cat i ons

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NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 70 ( 2017; ERTA 1- 2 2017; TI A 17- 1; TI A 17- 2;

TI A 17- 3; TI A 17- 4; TI A 17- 5; TI A 17- 6;

TI A 17- 7; TI A 17- 8; TI A 17- 9; TI A 17- 10;

TI A 17- 11; TI A 17- 12; TI A 17- 13; TI A

17- 14) Nat i onal El ect r i cal Code

UNDERWRI TERS LABORATORI ES ( UL)

UL 1558 ( 1999; Repr i nt Jun 2017) UL St andar d f or Saf et y Met al - Encl osed Low- Vol t age Power Ci r cui t Br eaker Swi t chgear

UL 467 ( 2013; Repr i nt Jun 2017) UL St andar d f or Saf et y Gr oundi ng and Bondi ng Equi pment

1. 2 RELATED REQUI REMENTS

NOTE: I ncl ude Sect i on 26 08 00 APPARATUS I NSPECTI ON AND TESTI NG on al l pr oj ect s i nvol v i ng medi um vol t age and speci al i zed power di st r i but i on equi pment

Sect i on 26 08 00 APPARATUS I NSPECTI ON AND TESTI NG appl i es t o t hi s sect i on, wi t h t he addi t i ons and modi f i cat i ons speci f i ed her ei n.

1. 3 DEFINITIONS

Unl ess ot her wi se speci f i ed or i ndi cat ed, el ect r i cal and el ect r oni cs t er ms used i n t hese speci f i cat i ons, and on t he dr awi ngs, ar e as def i ned i n

I EEE 100.

1. 4 SUBMITTALS

NOTE: Submi t t al s must be l i mi t ed t o t hose necessar y f or adequat e qual i t y cont r ol . The i mpor t ance of an i t em i n t he pr oj ect shoul d be one of t he pr i mar y f act or s i n det er mi ni ng i f a submi t t al f or t he i t em shoul d be r equi r ed.

A " G" f ol l owi ng a submi t t al i t em i ndi cat es t hat t he submi t t al r equi r es Gover nment appr oval . Some submi t t al s ar e al r eady mar ked wi t h a " G" . Onl y del et e an exi st i ng " G" i f t he submi t t al i t em i s not compl ex and can be r evi ewed t hr ough t he Cont r act or ’ s QC syst em. Onl y add a " G" i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he project.

For submi t t al s r equi r i ng Gover nment appr oval on Ar my pr oj ect s, a code of up t o t hr ee char act er s wi t hi n t he submi t t al t ags may be used f ol l owi ng t he " G" desi gnat i on t o i ndi cat e t he appr ovi ng aut hor i t y.

Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or

SECTI ON 26 23 00 Page 7

Ar chi t ect - Engi neer ; " DO" f or Di st r i c t Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i c t Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy, Ai r For ce and NASA pr oj ect s.

Use t he " S" c l assi f i cat i on onl y i n SD- 11 Cl oseout Submi t t al s. The " S" f ol l owi ng a submi t t al i t em i ndi cat es t hat t he submi t t al i s r equi r ed f or t he Sust ai nabi l i t y eNot ebook t o f ul f i l l f eder al l y mandat ed sust ai nabl e r equi r ement s i n accor dance wi t h

01 33 29 SUSTAI NABI LI TY REPORTI NG.

Choose t he f i r st br acket ed i t em f or Navy, Ai r For ce and NASA pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e [ f or Cont r act or QC appr oval . ] [ f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . ] Submi t t al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y eNot ebook, i n conf or mance t o Sect i on 01 33 29, SUSTAI NABI TY REPORTI NG. Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00

SUBMI TTAL PROCEDURES:

SD- 02 Shop Dr awi ngs

Swi t chgear Dr awi ngs; G[ , [ _____] ]

SD- 03 Pr oduct Dat a

Swi t chgear ; G[ , [ _____] ]

SD- 06 Test Repor t s

Swi t chgear Desi gn Test s; G[ , [ _____] ]

Swi t chgear Pr oduct i on Test s; G[ , [ _____] ]

Accept ance Checks and Test s; G[ , [ _____] ]

SD- 07 Cer t i f i cat es

Cyber secur i t y Equi pment Cer t i f i cat i on; G[ , [ _____] ]

Submi t cer t i f i cat i on i ndi cat i ng conf or mance wi t h t he par agr aph

CYBERSECURI TY EQUI PMENT CERTI FI CATI ON.

Cyber secur i t y I nst al l at i on Cer t i f i cat i on; G[ , [ _____] ]

Submi t cer t i f i cat i on i ndi cat i ng conf or mance wi t h t he par agr aph

CYBERSECURI TY I NSTALLATI ON CERTI FI CATI ON.

SD- 10 Oper at i on and Mai nt enance Dat a

Swi t chgear Oper at i on and Mai nt enance, Dat a Package 5; G[ , [ _____] ]

SECTI ON 26 23 00 Page 8

SD- 11 Cl oseout Submi t t al s

Assembl ed Oper at i on and Mai nt enance Manual s; G[ , [ _____] ]

Equi pment Test Schedul e; G[ , [ _____] ]

NOTE: Sel ect " Request f or Set t i ngs" bel ow i f pr ot ect i ve devi ce set t i ngs wi l l be gover nment f ur ni shed. Sel ect " Requi r ed Set t i ngs" bel ow i f pr ot ect i ve devi ce set t i ngs ar e f ur ni shed by t he Desi gner of Recor d. Coor di nat e wi t h t he per son devel opi ng t he Di v i s i on 1 Sect i ons and ensur e t hat Di v i s i on 1 Sect i ons i dent i f y t he per son r esponsi bl e f or pr ovi di ng t he f i nal pr ot ect i ve devi ce set t i ngs f or desi gn/ bui l d ver sus desi gn/ bi d/ bui l d pr oj ect s.

Do not r el y on t he manuf act ur er ' s def aul t set t i ngs.

[ Request f or Set t i ngs; G[ , [ _____] ]

][ Requi r ed Set t i ngs; G[ , [ _____] ]

NOTE: NFPA 70 Ar t i c l e 110. 24 r equi r es an avai l abl e f aul t cur r ent l abel t o be appl i ed at t he ser vi ce ent r ance. Sel ect " Avai l abl e Faul t Cur r ent Label " bel ow i f t he swi t chgear i s par t of t he ser vi ce ent r ance equi pment . Coor di nat e wi t h t he per son devel opi ng t he Di v i s i on 1 Sect i ons and ensur e t hat Di v i s i on 1 Sect i ons i dent i f y t he per son r esponsi bl e f or pr ovi di ng t he shor t c i r cui t cal cul at i on f or t he pr oj ect . Thi s may var y f or desi gn/ bui l d ver sus desi gn/ bi d/ bui l d pr oj ect s.

[ Ser vi ce Ent r ance Avai l abl e Faul t Cur r ent Label ; G[ , [ _____] ]

] 1. 5 QUALI TY ASSURANCE

1. 5. 1 Pr oduct Dat a

I ncl ude manuf act ur er ' s i nf or mat i on on each submi t t al f or each component , devi ce and accessor y pr ovi ded wi t h t he swi t chgear i ncl udi ng:

a. Ci r cui t br eaker t ype, i nt er r upt i ng r at i ng, and t r i p devi ces, i ncl udi ng avai l abl e set t i ngs.

b. Manuf act ur er ' s i nst r uct i on manual s and publ i shed t i me- cur r ent cur ves ( i n el ect r oni c f or mat ) of t he mai n secondar y br eaker and l ar gest secondar y f eeder devi ce.

1. 5. 2 Swi t chgear Dr awi ngs

I ncl ude wi r i ng di agr ams and i nst al l at i on det ai l s of equi pment i ndi cat i ng pr oposed l ocat i on, l ayout and ar r angement , cont r ol panel s, accessor i es, pi pi ng, duct wor k, and ot her i t ems t hat must be shown t o ensur e a coor di nat ed i nst al l at i on. I dent i f y c i r cui t t er mi nal s on wi r i ng di agr ams

SECTI ON 26 23 00 Page 9 and i ndi cat e t he i nt er nal wi r i ng f or each i t em of equi pment and t he i nt er connect i on bet ween each i t em of equi pment . I ndi cat e on t he dr awi ngs adequat e c l ear ance f or oper at i on, mai nt enance, and r epl acement of oper at i ng equi pment devi ces. I ncl ude t he namepl at e dat a, s i ze, and capaci t y on submi t t al . Al so i ncl ude appl i cabl e f eder al , mi l i t ar y, i ndust r y, and t echni cal soci et y publ i cat i on r ef er ences on submi t t al s. I ncl ude t he following:

a. One- l i ne di agr am i ncl udi ng br eaker s[ , f uses] [ , cur r ent t r ansf or mer s, and met er s] .

b. Out l i ne dr awi ngs i ncl udi ng f r ont el evat i on, sect i on v i ews, f oot pr i nt , and over al l di mensi ons.

c. Bus conf i gur at i on i ncl udi ng di mensi ons and amper e r at i ngs of bus bar s.

d. Mar ki ngs and NEMA namepl at e dat a[ , i ncl udi ng f use i nf or mat i on ( manuf act ur er ' s name, cat al og number , and r at i ngs) ] .

e. Ci r cui t br eaker t ype, i nt er r upt i ng r at i ng, and t r i p devi ces, i ncl udi ng avai l abl e set t i ngs.

f . Wi r i ng di agr ams and el ement ar y di agr ams wi t h t er mi nal s i dent i f i ed, and i ndi cat i ng pr ewi r ed i nt er connect i ons bet ween i t ems of equi pment and t he i nt er connect i on bet ween t he i t ems.

g. Manuf act ur er ' s i nst r uct i on manual s and publ i shed t i me- cur r ent cur ves ( i n el ect r oni c f or mat ) of t he mai n secondar y br eaker and l ar gest secondar y f eeder devi ce. Use t hi s i nf or mat i on ( desi gner of r ecor d) t o pr ovi de br eaker set t i ngs t hat ensur es pr ot ect i on and coor di nat i on ar e achi eved. [ For Navy i nst al l at i ons, pr ovi de el ect r oni c f or mat cur ves usi ng SKM' s Power Tool s f or Wi ndows devi ce l i br ar y el ect r oni c f or mat or EasyPower devi ce l i br ar y f or mat dependi ng on i nst al l at i on model i ng sof t war e r equi r ement s. ]

NOTE: I f sel ect i ng pr ovi s i ons f or f ut ur e expansi on, ensur e t he f aci l i t y and r oom si ze i s adequat e f or t he addi t i onal equi pment .

[ h. Pr ovi s i ons f or f ut ur e expansi on by addi ng swi t chgear sect i ons.

] 1. 5. 3 Regul at or y Requi r ement s

I n each of t he publ i cat i ons r ef er r ed t o her ei n, consi der t he advi sor y pr ovi s i ons t o be mandat or y, as t hough t he wor d, " shal l " or " must " had been subst i t ut ed f or " shoul d" wher ever i t appear s. I nt er pr et r ef er ences i n t hese publ i cat i ons t o t he " aut hor i t y havi ng j ur i sdi ct i on, " or wor ds of s i mi l ar meani ng, t o mean t he Cont r act i ng Of f i cer . Pr ovi de equi pment , mat er i al s, i nst al l at i on, and wor kmanshi p i n accor dance wi t h t he mandat or y and advi sor y pr ovi s i ons of NFPA 70 unl ess mor e st r i ngent r equi r ement s ar e speci f i ed or i ndi cat ed.

1. 5. 4 St andar d Pr oduct s

Pr ovi de mat er i al s and equi pment t hat ar e pr oduct s of manuf act ur er s r egul ar l y engaged i n t he pr oduct i on of such pr oduct s whi ch ar e of equal mat er i al , desi gn and wor kmanshi p, and:

SECTI ON 26 23 00 Page 10

a. Have been i n sat i sf act or y commer ci al or i ndust r i al use f or 2 year s pr i or t o bi d openi ng i ncl udi ng appl i cat i ons of equi pment and mat er i al s under s i mi l ar c i r cumst ances and of s i mi l ar s i ze.

b. Have been on sal e on t he commer ci al mar ket t hr ough adver t i sement s, manuf act ur er s ' cat al ogs, or br ochur es dur i ng t he 2- year per i od.

c. Wher e t wo or mor e i t ems of t he same cl ass of equi pment ar e r equi r ed, pr ovi de pr oduct s of a s i ngl e manuf act ur er ; however , t he component par t s of t he i t em need not be t he pr oduct s of t he same manuf act ur er unl ess st at ed i n t hi s sect i on.

1. 5. 4. 1 Al t er nat i ve Qual i f i cat i ons

Pr oduct s havi ng l ess t han a 2- year f i el d ser vi ce r ecor d wi l l be accept abl e i f a cer t i f i ed r ecor d of sat i sf act or y f i el d oper at i on f or not l ess t han 6000 hour s, excl usi ve of t he manuf act ur er s ' f act or y or l abor at or y t est s, i s furnished.

1. 5. 4. 2 Mat er i al and Equi pment Manuf act ur i ng Dat e

Pr oduct s manuf act ur ed mor e t han 1 year pr i or t o dat e of del i ver y t o s i t e ar e not accept abl e.

1. 6 MAINTENANCE

1. 6. 1 Swi t chgear Oper at i on and Mai nt enance Dat a

Submi t Oper at i on and Mai nt enance Manual s i n accor dance wi t h Sect i on 01 78 23

OPERATI ON AND MAI NTENANCE DATA.

1. 6. 2 Assembl ed Oper at i on and Mai nt enance Manual s

Assembl e and secur el y bi nd manual s i n dur abl e, har d cover ed, wat er r esi st ant bi nder s. Assembl e and i ndex t he manual s i n t he f ol l owi ng or der wi t h a t abl e of cont ent s:

a. Manuf act ur er ' s O&M i nf or mat i on r equi r ed by t he par agr aph SD- 10, OPERATI ON AND MAI NTENANCE DATA.

b. Cat al og dat a r equi r ed by t he par agr aph SD- 03, PRODUCT DATA.

c. Dr awi ngs r equi r ed by t he par agr aph SD- 02, SHOP DRAWI NGS.

d. Pr i ces f or spar e par t s and suppl y l i s t .

[ e. I nf or mat i on on met er i ng.

] f . Desi gn t est r epor t s.

g. Pr oduct i on t est r epor t s.

[ 1. 6. 3 Spar e Par t s

NOTE: Do not use t hi s par agr aph f or Navy pr oj ect s.

For ot her ser vi ces, coor di nat e wi t h Cont r act i ng Of f i cer on whet her t hi s par agr aph can be i ncl uded.

SECTI ON 26 23 00 Page 11

Edi t as r equi r ed i f addi t i onal spar e par t s ar e r equi r ed f or a speci f i c pr oj ect .

Pr ovi de spar e par t s as speci f i ed bel ow. Pr ovi de spar e par t s t hat ar e of t he same mat er i al and wor kmanshi p, meet t he same r equi r ement s, and ar e i nt er changeabl e wi t h t he cor r espondi ng or i gi nal par t s f ur ni shed.

a. Quant i t y 2 - Fuses of each t ype and si ze.

[ b. [ _____]

] ] 1. 7 WARRANTY

Pr ovi de equi pment i t ems t hat ar e suppor t ed by ser v i ce or gani zat i ons r easonabl y conveni ent t o t he equi pment i nst al l at i on i n or der t o r ender sat i sf act or y ser vi ce t o t he equi pment on a r egul ar and emer gency basi s dur i ng t he war r ant y per i od of t he cont r act .

PART 2 PRODUCTS

2. 1 PRODUCT COORDI NATI ON

Pr oduct s and mat er i al s not consi der ed t o be swi t chgear and r el at ed accessor i es ar e speci f i ed i n Sect i on 33 71 02 UNDERGROUND ELECTRI CAL DI STRI BUTI ON, and Sect i on 26 20 00 I NTERI OR DI STRI BUTI ON SYSTEM.

2. 2 SWITCHGEAR

I EEE C37. 20. 1 and UL 1558.

2. 2. 1 Ratings

Pr ovi de equi pment wi t h t he f ol l owi ng r at i ngs:

NOTE: Sel ect " as i ndi cat ed" i f t her e ar e mul t i pl e swi t chgear wi t h det ai l s of each shown on dr awi ngs.

Most swi t chgear wi l l be 4- wi r e, but mi ght be a 3- wi r e desi gn f or del t a- connect ed or ungr ounded systems.

a. Vol t age r at i ng: [ 480Y/ 277] [ 208Y/ 120] [ _____] vol t s AC, [ 3] [ 4] - wi r e [ t hr ee- phase, [ 3] [ 4] - wi r e] [ as i ndi cat ed] .

b. Cont i nuous cur r ent r at i ng of t he mai n bus: [ _____ amper es] [ as indicated].

c. Shor t - c i r cui t cur r ent r at i ng: [ _____ r ms symmet r i cal amper es] [ as indicated].

d. UL l i s t ed and l abel ed[ f or i t s i nt ended use] [ as ser vi ce ent r ance equipment].

2. 2. 2 Construction

SECTI ON 26 23 00 Page 12

NOTE: Edi t t he sel ect i on opt i ons bel ow as needed f or t he i nt ended pr oj ect conf i gur at i on.

Det er mi ne i f an ar c- r esi st ant desi gn wi l l be speci f i ed f or t he i nst al l at i on. A sel ect i on of ar c- r esi st ant swi t chgear can af f ect t he i nst al l at i on desi gn. Ar c- r esi st ant swi t chgear i s t est ed and cer t i f i ed t o I EEE C37. 20. 7, and i s i nt ended t o pr ovi de added pr ot ect i on f or i nt er nal ar c i ng f aul t s. Sel ect Type 1 i f ar c pr ot ect i on i s onl y r equi r ed f or t he f r eel y accessi bl e f r ont of t he encl osur e. Sel ect Type 2 i f ar c pr ot ect i on i s r equi r ed f or f r eel y accessi bl e f r ont , s i des and r ear of t he encl osur e. Sel ect t he ' B' suf f i x f or addi t i onal pr ot ect i on appl i ed t o compar t ment s desi gnat ed as l ow vol t age cont r ol or i nst r ument at i on compar t ment s. Sel ect t he ' C' suf f i x wher e i sol at i on f r om t he ef f ect s of an i nt er nal ar c i ng f aul t i s desi r ed bet ween al l adj acent compar t ment s wi t hi n a swi t chgear assembl y. Most manuf act ur er s pr oduce Type 2B as a st andar d pr oduct , whi ch coul d i ncr ease t he swi t chgear cost by about 20 per cent . Revi ew I EEE C37. 20. 7 f or addi t i onal i nf or mat i on.

Pr ovi de t he f ol l owi ng:

a. Swi t chgear : consi st i ng of ver t i cal sect i ons bol t ed t oget her t o f or m a r i gi d assembl y and [ r ear ] [ f r ont and r ear ] al i gned[ as i ndi cat ed] .

b. Al l c i r cui t br eaker s: f r ont accessi bl e wi t h r ear l oad connect i ons.

c. Compar t ment al i zed swi t chgear : ver t i cal i nsul at i ng bar r i er s bet ween t he f r ont devi ce sect i on, t he mai n bus sect i on, and t he cabl e compar t ment [ wi t h f ul l f r ont t o r ear ver t i cal i nsul at i ng bar r i er s bet ween adj acent sections].

d. Wher e i ndi cat ed, " space f or f ut ur e" or " space" means t o i ncl ude al l necessar y component s and har dwar e t o be f ul l y equi pped f or r acki ng i n a c i r cui t br eaker el ement .

e. I nsul at i ng bar r i er s: pr ovi ded i n accor dance wi t h NEMA LI 1, Type GPO- 3,

6. 35 mm 0. 25 i nch mi ni mum t hi ckness.

[ f . Moi st ur e r esi st ant coat i ng: appl i ed t o al l r ough- cut edges of barriers.

][ g. Swi t chgear : Ar c- r esi st ant [ Type 1[ B] [ C] ] [ Type 2[ B] [ C] ] , t est ed i n accor dance wi t h I EEE C37. 20. 7.

] 2. 2. 2. 1 Enclosure

NOTE: Choose t he l evel of cor r osi on pr ot ect i on r equi r ed f or t he speci f i c pr oj ect l ocat i on. Most swi t chgear pr oduct s wi l l be const r uct ed of a col d r ol l ed st eel and pai nt ed, whi ch i s adequat e f or most i ndoor l ocat i ons. Use gal vani zed st eel or st ai nl ess st eel encl osur es or bases f or out door appl i cat i ons

SECTI ON 26 23 00 Page 13 wher e cor r osi on i s a concer n. Not al l manuf act ur er s of f er gal vani zed st eel or st ai nl ess st eel pr oduct s as a st andar d desi gn.

Sel ect I EEE C57. 12. 28 f or gal vani zed encl osur es.

Sel ect I EEE C57. 12. 29 f or st ai nl ess st eel encl osur es.

I nf r ar ed v i ewi ng wi ndows ar e t ypi cal l y i nst al l ed i n t he swi t chgear r ear cover s t o f ac i l i t at e t he use of I R camer as f or t her mal l y scanni ng cabl e t er mi nat i ons.

Pr ovi de t he f ol l owi ng:

a. Encl osur e: [ out door ] NEMA I CS 6 Type [ 3R] [ 1] [ _____] [ as i ndi cat ed] [ f abr i cat ed ent i r el y of 12 gauge ASTM A240/ A240M t ype 304 or 304L st ai nl ess st eel ] .

b. Encl osur e: bol t ed t oget her wi t h r emovabl e bol t - on s i de and[ hi nged] r ear cover s[ , and s l opi ng r oof downwar d t owar d r ear ] .

[ c. Fr ont [ and r ear ] door s: pr ovi ded wi t h[ st ai nl ess st eel ] padl ockabl e vaul t handl es wi t h a t hr ee poi nt cat ch.

][ d. Bases, f r ames and channel s of encl osur e: cor r osi on r esi st ant and f abr i cat ed of [ ASTM A240/ A240M t ype 304 or 304L st ai nl ess st eel ] [ or ] [ gal vani zed st eel ] .

] e. Base: i ncl udes any par t of encl osur e t hat i s wi t hi n 75 mm 3 i nches of concr et e pad.

[ f . Gal vani zed st eel : ASTM A123/ A123M, ASTM A653/ A653M G90 coat i ng, and ASTM A153/ A153M, as appl i cabl e. Gal vani ze af t er f abr i cat i on wher e practicable.

] g. Pai nt col or : ASTM D1535 l i ght gr ay No. 61 or No. 49 over r ust inhibitor.

[ h. Pai nt coat i ng syst em: compl y wi t h[ I EEE C57. 12. 28 f or gal vani zed st eel ] [ and] [ I EEE C57. 12. 29 f or st ai nl ess st eel ] .

][ i . I nf r ar ed v i ewi ng wi ndows: i nst al l t o al l ow t he use of an i nf r ar ed camer a or t her mal i mager di r ect l i ne of s i t e t o i nspect el ect r i cal connect i ons wi t hout r equi r i ng t he openi ng of panel s and door s. These wi ndows ar e i nt ended t o al l ow t her mogr apher s t he abi l i t y t o i nspect t he el ect r i cal equi pment wi t hout di r ect l y exposi ng t hemsel ves t o l i ve el ect r i cal component s and ener gi zed devi ces.

] 2. 2. 2. 2 Bus Bar s

NOTE: Use copper wi t h s i l ver - pl at ed cont act sur f aces i n ext er i or or damp l ocat i ons or f or heavy mot or l oads.

Del et e t he neut r al bus br acket ed opt i on i f a 3- wi r e syst em was sel ect ed.

Onl y choose t he br acket ed opt i on r equi r i ng

SECTI ON 26 23 00 Page 14 i nsul at i on on t he bus bar s f or out door l ocat i ons wi t h a hi gh concent r at i on of ai r bor ne cont ami nant s.

Choose t hi s opt i on pr i mar i l y f or cor r osi ve and hi gh humi di t y appl i cat i ons as def i ned i n UFC 3- 501- 01.

Most manuf act ur er s wi l l appl y an i nsul at i ng s l eeve r at her t han an epoxy coat i ng.

Pr ovi de t he f ol l owi ng:

a. Bus bar s: [ copper wi t h s i l ver - pl at ed cont act sur f aces] [ or ] [ al umi num wi t h t i n- pl at ed cont act sur f aces] .

( 1) Phase bus bar s: [ uni nsul at ed] [ i nsul at ed wi t h an epoxy f i ni sh coat i ng powder or i nsul at i ng s l eeve pr ovi di ng a mi ni mum br eakdown vol t age of 16, 000 vol t s per ASTM D149].

( 2) Neut r al bus: r at ed [ 100] [ _____] per cent of t he mai n bus cont i nuous cur r ent r at i ng[ as i ndi cat ed] .

b. Make bus connect i ons and j oi nt s wi t h har dened st eel bol t s.

c. Mai n- bus ( t hr ough bus) : r at ed at t he f ul l ampaci t y of t he mai n t hr oughout t he swi t chgear .

d. Mi ni mum 6. 35 mm by 50. 8 mm one- quar t er by 2 i nch copper gr ound bus secur ed t o each ver t i cal sect i on al ong t he ent i r e l engt h of t he switchgear.

2. 2. 2. 3 Mai n Sect i on

NOTE: Cur r ent - l i mi t i ng f uses shoul d onl y be needed i f t he avai l abl e f aul t cur r ent exceeds t he c i r cui t br eaker shor t c i r cui t r at i ng.

Pr ovi de t he mai n sect i on consi st i ng of [ mai n l ugs onl y] [ an i ndi v i dual l y mount ed] [ dr awout ] [ ai r power c i r cui t br eaker [ wi t h cur r ent - l i mi t i ng f uses] ] [ and ut i l i t y t r ansf or mer compar t ment ] .

2. 2. 2. 4 Di st r i but i on Sect i ons

NOTE: Cur r ent - l i mi t i ng f uses shoul d onl y be needed i f t he avai l abl e f aul t cur r ent exceeds t he c i r cui t br eaker shor t c i r cui t r at i ng. Ut i l i t y t r ansf or mer compar t ment s ar e r ar el y used and wi l l r equi r e addi t i onal r evi ew i f t hi s br acket ed opt i on i s selected.

Pr ovi de t he di st r i but i on sect i on[ s] consi st i ng of [ [ i ndi v i dual l y mount ed, ] [ dr awout , ] ] [ ai r power c i r cui t br eaker s[ wi t h cur r ent - l i mi t i ng f uses] ] [ and ut i l i t y t r ansf or mer compar t ment s] as i ndi cat ed.

[ 2. 2. 2. 5 Auxi l i ar y Sect i ons

Pr ovi de auxi l i ar y sect i ons consi st i ng of i ndi cat ed[ i nst r ument s, ] [ met er i ng

SECTI ON 26 23 00 Page 15 equi pment , ] [ cont r ol equi pment , ] [ t r ansf or mer , ] [ and] [ cur r ent t r ansf or mer compar t ment s] as i ndi cat ed.

][ 2. 2. 2. 6 Handles

Pr ovi de handl es f or i ndi v i dual l y mount ed devi ces of t he same desi gn and met hod of ext er nal oper at i on. Label handl es pr omi nent l y t o i ndi cat e devi ce amper e r at i ng, col or coded f or devi ce t ype. I dent i f y ON- OFF i ndi cat i on by handl e posi t i on and by pr omi nent mar ki ng.

] 2. 2. 3 Pr ot ect i ve Devi ce

NOTE: Swi t chgear shoul d be pl aced wher e t he ambi ent t emper at ur e i s l ess t han 40 degr ees C, whi ch i s t he basi s f or r at i ng i n accor dance wi t h I EEE C37. 13.

However , shoul d t he ambi ent t emper at ur e be expect ed t o exceed 40 Deg. C, t he desi gner must r equi r e a speci al cal i br at i on f or t he c i r cui t br eaker s and conf i r m t he equi pment r at i ngs.

Thi s par agr aph assumes t hat c i r cui t br eaker s ar e avai l abl e r at ed f or t he speci f i ed shor t c i r cui t cur r ent . For ver y hi gh shor t c i r cui t cur r ent s, t he manuf act ur er mi ght have t o i nst al l cur r ent - l i mi t i ng f uses upst r eam of t he c i r cui t br eaker .

Pr ovi de gr ound f aul t pr ot ect i on of equi pment f or sol i dl y gr ounded wye el ect r i cal ser vi ces of mor e t han 150 vol t s t o gr ound f or each ser vi ce di sconnect r at ed 1000 amper es or mor e i n accor dance wi t h NFPA 70.

I f 48 Vdc or 125 Vdc el ect r i cal l y oper at ed c i r cui t br eaker s ar e r equi r ed, t he appr opr i at e DC cont r ol power suppl y i nf or mat i on must be added t o t he speci f i cat i on.

Pr ovi de[ mai n and] br anch pr ot ect i ve devi ces as i ndi cat ed.

Pr ovi de t he f ol l owi ng:

a. I EEE C37. 13. [ 120 Vac] [ el ect r i cal l y ] [ manual l y] oper at ed dr awout , [ unf used] [ f used] , l ow- vol t age power c i r cui t br eaker wi t h a shor t - c i r cui t cur r ent r at i ng[ of [ _____] r ms amper es symmet r i cal ] [ as i ndi cat ed] at [ _____] vol t s.

b. Br eaker f r ame si ze: [ as i ndi cat ed] [ [ _____] amper es] .

[ c. Equi p el ect r i cal l y oper at ed br eaker s wi t h mot or - char ged, st or ed- ener gy c l osi ng mechani sm t o per mi t r api d and saf e c l osi ng of t he br eaker agai nst f aul t cur r ent s wi t hi n t he shor t t i me r at i ng of t he br eaker , i ndependent of t he oper at or ' s st r engt h or ef f or t i n c l osi ng t he handl e.

] [ 2. 2. 4 Dr awout Br eaker s

Equi p dr awout br eaker s wi t h di sconnect i ng cont act s, wheel s, and i nt er l ocks f or dr awout appl i cat i on. Pr ovi de mai n, auxi l i ar y, and cont r ol

SECTI ON 26 23 00 Page 16 di sconnect i ng cont act s wi t h s i l ver - pl at ed, mul t i f i nger , posi t i ve pr essur e, sel f - al i gni ng t ype. Pr ovi de dr awout compar t ment shut t er s t o pr ot ect oper at or s f r om acci dent al cont act wi t h br eaker st abs when t he br eaker i s wi t hdr awn f r om i t s cubi c l e. Pr ovi de each dr awout br eaker wi t h f our - posi t i on oper at i on wi t h each posi t i on c l ear l y i dent i f i ed by an i ndi cat or on t he c i r cui t br eaker f r ont panel as f ol l ows.

a. Connect ed Posi t i on: Pr i mar y and secondar y cont act s ar e f ul l y engaged.

Br eaker must be t r i pped bef or e r acki ng i nt o or out of posi t i on.

b. Test Posi t i on: Pr i mar y cont act s ar e di sconnect ed but secondar y cont act s r emai n f ul l y engaged. Thi s posi t i on al l ows compl et e t est and oper at i on of t he br eaker wi t hout ener gi z i ng t he pr i mar y c i r cui t .

c. Di sconnect ed Posi t i on: Pr i mar y and secondar y cont act s ar e di sconnect ed.

d. Wi t hdr awn ( Removed) Posi t i on: Pl aces br eaker compl et el y out of compar t ment , r eady f or r emoval . Removal of t he br eaker act uat es assembl y t hat i sol at es t he pr i mar y st abs.

][ 2. 2. 5 Remot e Racki ng

NOTE: UFC 3- 520- 01 r equi r es consi der at i on of r emot e r acki ng met hods f or swi t chgear c i r cui t br eaker s.

Det er mi ne i f t hi s f eat ur e i s desi r ed by el ect r i cal per sonnel t hat wi l l oper at e and mai nt ai n t hi s equi pment . The r emot e r acki ng mechani sm desi gn var i es among manuf act ur er s; however t he met hod of connect i on t o t he r acki ng mechani sm t ends t o be s i mi l ar . Det er mi ne i f t he pr oj ect budget can f und t hi s devi ce ( mi ght cost as much as $40, 000 wi t h al l opt i ons i ncl udi ng camer a and wi r el ess syst em) . Do not sel ect t hi s opt i on i f ot her r emot e r acki ng mechani sms ar e avai l abl e wi t hi n t he act i v i t y and can be used f or t hi s l ocat i on.

Pr ovi de a r emot e r acki ng mechani sm t o al l ow an oper at or t o r ack a c i r cui t br eaker i n or out f r om at l east 20 f eet away f r om t he f r ont of t he equipment.

] 2. 2. 6 El ect r oni c Tr i p Uni t s

NOTE: Swi t chgear c i r cui t br eaker s wi l l be suppl i ed wi t h el ect r oni c t r i p uni t s. Sel ect f r om t he br acket ed opt i ons bel ow. I n t he i t ems bel ow, choose t he br acket ed i t em " mai n" when t he i t em onl y appl i es t o t he mai n br eaker .

A di gi t al di spl ay f or t he mai n br eaker wi l l t ypi cal l y not be sel ect ed i f di gi t al met er i ng i s pr ovi ded per t he par agr aph DI GI TAL METERS i s selected.

Pr ovi de gr ound f aul t pr ot ect i on of equi pment f or sol i dl y gr ounded wye el ect r i cal ser vi ces of mor e t han 150 vol t s t o gr ound f or each ser vi ce di sconnect

SECTI ON 26 23 00 Page 17 r at ed 1000 amper es or mor e i n accor dance wi t h NFPA 70.

NFPA 70 r equi r es ar c ener gy r educt i on wher e t he hi ghest cont i nuous cur r ent t r i p set t i ng f or whi ch t he act ual over cur r ent devi ce i nst al l ed i n a c i r cui t br eaker i s r at ed or can be adj ust ed t o 1200 amper es or hi gher . The opt i on i dent i f i ed bel ow i s based on an ener gy- r educi ng mai nt enance swi t ch. Add t he addi t i onal appr opr i at e i nf or mat i on i f ot her met hods such as di f f er ent i al r el ayi ng or an act i ve ar c f l ash mi t i gat i on syst em ar e i ncl uded. I dent i f y l ocat i ons of al t er nat e ar c ener gy r educt i on met hods i n t he design.

Equi p[ mai n and] [ di st r i but i on] br eaker s[ as i ndi cat ed] wi t h a sol i d- st at e t r i ppi ng syst em consi st i ng of t hr ee cur r ent sensor s and a mi cr opr ocessor - based t r i p uni t t hat pr ovi des t r ue r ms sensi ng adj ust abl e t i me- cur r ent c i r cui t pr ot ect i on. I ncl ude t he f ol l owi ng:

a. Cur r ent sensor s amper e r at i ng: [ as i ndi cat ed] [ [ _____] amper es] [ t he same as t he br eaker f r ame r at i ng] .

b. Tr i p uni t amper e r at i ng: [ as i ndi cat ed] [ [ _____] amper es] .

[ c. Gr ound f aul t pr ot ect i on: [ as i ndi cat ed] [ zer o sequence sensi ng] [ r esi dual t ype sensi ng] .

][ d. El ect r oni c t r i p uni t s: pr ovi de addi t i onal f eat ur es[ as i ndi cat ed] :

[ ( 1) [ I ndi cat ed ] Br eaker s: i ncl ude l ong del ay pi ck- up and t i me set t i ngs, and i ndi cat i on of cause of c i r cui t br eaker t r i p.

][ ( 2) Mai n br eaker s: i ncl ude[ shor t del ay pi ck- up and t i me set t i ngs] [ and] [ , i nst ant aneous set t i ngs] [ and] [ gr ound f aul t set t i ngs] [ as indicated].

][ ( 3) Di st r i but i on br eaker s: i ncl ude[ shor t del ay pi ck- up and t i me set t i ngs] [ , i nst ant aneous set t i ngs] [ , and gr ound f aul t set t i ngs] [ as i ndi cat ed] .

][ ( 4) [ Mai n ] Br eaker s: i ncl ude a di gi t al di spl ay f or phase and gr ound current.

][ ( 5) [ Mai n ] Br eaker s: i ncl ude a di gi t al di spl ay f or wat t s, var s, VA, kWh, kvar h, and kVAh.

][ ( 6) [ Mai n ] Br eaker s: i ncl ude a di gi t al di spl ay f or phase vol t age, and per cent THD vol t age and cur r ent .

][ ( 7) [ Mai n ] Br eaker s: i ncl ude pr ovi s i ons f or communi cat i on v i a a net wor k t wi st ed pai r cabl e f or r emot e moni t or i ng and cont r ol .

Pr ovi de t he f ol l owi ng communi cat i ons pr ot ocol : [ DNP3] [ Modbus] [ I EC 61850].

][ ( 8) For el ect r oni c t r i p uni t s t hat ar e r at ed f or or can be adj ust ed t o 1, 200 amper es or hi gher , pr ovi de ar c ener gy r educt i on capabi l i t y wi t h an ener gy- r educi ng mai nt enance swi t ch wi t h l ocal st at us

SECTI ON 26 23 00 Page 18 indicator.

] [ 2. 2. 7 Metering

[ 2. 2. 7. 1 Di gi t al Met er s

NOTE: Di gi t al met er i ng i ncor por at es newer t echnol ogy and pr ovi des addi t i onal i nf or mat i on, of t en wi t hout addi t i onal cost . A cont r ol power t r ansf or mer ( 115 V or 130 V) i s usual l y r equi r ed wi t h t hi s t ype of met er i ng.

Di gi t al met er s ar e cont i nual l y i mpr ovi ng. The di spl ay capabi l i t y can be a s i mpl e di spl ay of numer i cal val ues or a mor e sophi st i cat ed di spl ay showi ng wavef or ms. Over - speci f i cat i on of t he met er physi cal or sof t war e char act er i st i cs wi l l l i kel y r esul t i n speci f i cat i on of an ol der obsol et e met er .

I EEE C37. 90. 1 f or sur ge wi t hst and. Pr ovi de t r ue r ms, pl us/ mi nus one per cent accur acy, pr ogr ammabl e, mi cr opr ocessor - based met er encl osed i n a seal ed case wi t h t he f ol l owi ng f eat ur es.

a. Di spl ay capabi l i t y :

[ ( 1) Mul t i - Funct i on Met er : Di spl ay a sel ect ed phase t o neut r al vol t age, phase t o phase vol t age, per cent phase t o neut r al vol t age THD, per cent phase t o phase vol t age THD; a sel ect ed phase cur r ent , neut r al cur r ent , per cent phase cur r ent THD, per cent neut r al cur r ent ; sel ect ed t ot al PF, kW, KVA, kVAR, FREQ, kVAh, kWh.

Det ect ed al ar m condi t i ons i ncl ude over / under cur r ent , over / under vol t age, over / under KVA, over / under f r equency, over / under sel ect ed PF/ kVAR, vol t age phase r ever sal , vol t age i mbal ance, r ever se power , over per cent THD. I ncl ude a For m C KYZ pul se out put r el ay on t he meter.

][ ( 2) Power Met er : Di spl ay Wat t s, VARs, and sel ect ed KVA/ PF. Det ect ed al ar m condi t i ons i ncl ude over / under KVA, over / under PF, over / under VARs, over / under r ever se power .

][ ( 3) Vol t Met er : Pr ovi de capabi l i t y t o be sel ect abl e bet ween di spl ay of t he t hr ee phases of phase t o neut r al vol t ages and si mul t aneous di spl ay of t he t hr ee phases of t he phase t o phase vol t ages.

Det ect ed al ar m condi t i ons i ncl ude over / under vol t age, over / under vol t age i mbal ance, over per cent THD.

][ ( 4) Ammet er : Di spl ay phase A, B, and C cur r ent s. Det ect ed al ar m condi t i ons i ncl ude over / under cur r ent , over per cent THD.

][ ( 5) Di gi t al Wat t hour Met er : Pr ovi de a s i ngl e sel ect abl e di spl ay f or wat t s, t ot al k i l owat t hour s ( kWh) and wat t demand ( Wd) . I ncl ude a For m C KYZ pul se out put r el ay on t he met er .

] b. Desi gn met er s t o accept [ i nput f r om st andar d 5A secondar y i nst r ument t r ansf or mer s] [ and] [ di r ect vol t age moni t or i ng r ange t o [ 300] [ 600] vol t s, phase t o phase] .

SECTI ON 26 23 00 Page 19

c. Pr ovi de pr ogr ammi ng vi a a f r ont panel di spl ay and a communi cat i on i nt er f ace accessi bl e by a comput er .

d. Pr ovi de passwor d secur ed pr ogr ammi ng st or ed i n non- vol at i l e EEPROM memory.

e. Pr ovi de di gi t al communi cat i ons i n a Modbus [ RTU] pr ot ocol v i a a [ RS232C] [ RS485] ser i al por t [ and an i ndependent l y addr essabl e [ RS232C] [ RS485] ser i al por t ] .

f . Pr ovi de met er t hat cal cul at es and st or es aver age max/ mi n demand val ues wi t h t i me and dat e f or al l r eadi ngs based on a user sel ect abl e s l i di ng wi ndow aver agi ng per i od.

g. Pr ovi de met er wi t h pr ogr ammabl e hi / l ow set l i mi t s wi t h t wo For m C dr y cont act r el ays when exceedi ng al ar m condi t i ons.

[ h. Pr ovi de met er wi t h a di spl ay of Tot al Har moni c Di st or t i on ( THD) measur ement t o a mi ni mum of t he t hi r t y- f i r st or der .

][ i . I ncl ude hi st or i cal t r end l oggi ng capabi l i t y wi t h t he abi l i t y t o st or e up t o 100, 000 dat a poi nt s wi t h i nt er val s of 1 second t o 180 mi nut es.

Pr ovi de a uni t t hat can st or e and t i me st amp up t o 1000 pr ogr ammabl e t r i gger ed condi t i ons.

][ j . Pr ovi de event wavef or m r ecor di ng t r i gger ed by t he r ms of 2 cycl es of vol t age or cur r ent exceedi ng pr ogr ammabl e set poi nt s. St or e wavef or ms f or al l 6 channel s of vol t age and cur r ent f or a mi ni mum of 10 cycl es pr i or t o t he event and 50 cycl es past t he event .

] ][ 2. 2. 7. 2 El ect r oni c Wat t hour Met er

NOTE: For t he Ai r For ce, use Sect i on 26 27 13. 10 30

ELECTRI C METERS.

For t he Navy, use Sect i on 26 27 14. 00 20 ELECTRI CI TY

METERING.

For t he Ar my, coor di nat e met er r equi r ement s i n accor dance wi t h Engi neer i ng and Const r uct i on Bul l et i n ECB 2015- 2, Advanced Met er i ng and Connectivity.

[ Pr ovi de as speci f i ed i n Sect i on [ 26 27 14. 00 20 ELECTRI CI TY METERI NG] [

26 27 13. 10 30 ELECTRI C METERS] .

][ ANSI C12. 1. Pr ovi de a swi t chgear st y l e el ect r oni c pr ogr ammabl e wat t hour met er , semi - f l ush mount ed, as i ndi cat ed. Met er can be ei t her pr ogr ammed at t he f act or y or pr ogr ammed i n t he f i el d. Tur n f i el d pr ogr ammi ng devi ce over t o t he Cont r act i ng Of f i cer at compl et i on of pr oj ect . Coor di nat e met er t o syst em r equi r ement s.

a. Desi gn: Pr ovi de met er desi gned f or use on a 3- phase, 4- wi r e, [ 208Y/ 120] [ 480Y/ 277] vol t syst em wi t h 3 cur r ent t r ansf or mer s. I ncl ude necessar y KYZ pul se i ni t i at i on har dwar e f or Ener gy Moni t or i ng and Cont r ol Syst em ( EMCS) .

SECTI ON 26 23 00 Page 20

b. Coor di nat i on: Pr ovi de met er coor di nat ed wi t h r at i os of cur r ent t r ansf or mer s and t r ansf or mer secondar y vol t age.

c. Cl ass: 20. Accur acy: pl us or mi nus 1. 0 per cent . Fi ni sh: Cl ass I I .

d. Ki l owat t - hour Regi st er : f i ve di gi t el ect r oni c pr ogr ammabl e t ype.

e. Demand Regi st er :

( 1) Pr ovi de sol i d st at e.

( 2) Di spl ay act ual val ues and r eadi ngs of t he met er ed c i r cui t . No mul t i pl i er s must be r equi r ed.

( 3) Demand i nt er val l engt h: pr ogr ammed f or [ 15] [ 30] [ 60] mi nut es wi t h r ol l i ng demand up t o s i x subi nt er val s per i nt er val .

f . Met er f usi ng: Pr ovi de a f use bl ock mount ed i n t he met er i ng compar t ment cont ai ni ng one f use per phase t o pr ot ect t he vol t age i nput t o t he wat t hour met er . Si ze f uses as r ecommended by t he met er manuf act ur er .

g. Pr ovi de met er wi t h a communi cat i ons por t , RS485, wi t h Modbus RTU ser i al or Et her net , Modbus- TCP communi cat i ons.

NOTE: Sel ect t he appr opr i at e cur r ent t r ansf or mer ( CT) r at i o, cont i nuous- t her mal - cur r ent r at i ng f act or ( RF) at 30 degr ees C and ANSI Met er i ng Accur acy Cl ass val ues based on t he CT Rat i o whi ch i s j ust bel ow t he r at i ng of t he mai n pr ot ect i ve devi ce.

Sel ect an ANSI Met er i ng Accur acy Cl ass i n accor dance wi t h t he f ol l owi ng t abl e:

CT Rat i o RF Accur acy Cl ass

200/5 4.0 0. 3 t hr u B- 0. 1

300/5 3.0 0. 3 t hr u B- 0. 2

400/5 4.0 0. 3 t hr u B- 0. 2

600/5 4.0 0. 3 t hr u B- 0. 5

800/5 2.0 0. 3 t hr u B- 0. 5

1200/5 1.5 0. 3 t hr u B- 0. 5

1500/5 1.5 0. 3 t hr u B- 0. 9

2000/5 1.5 0. 3 t hr u B- 1. 8

I EEE C57. 13. Pr ovi de s i ngl e r at i o t r ansf or mer s, 60 her t z, [ _____] t o 5- amper e r at i o, [ _____] r at i ng f act or , wi t h a met er i ng accur acy c l ass of

SECTI ON 26 23 00 Page 21

0. 3 t hr ough [ _____] .

[ Pr ovi de a f use bl ock mount ed i n t he met er i ng compar t ment cont ai ni ng one f use per phase t o pr ot ect t he vol t age i nput t o vol t age sensi ng met er s.

Si ze f uses as r ecommended by t he met er manuf act ur er .

]] ][ 2. 2. 7. 3 Submetering

NOTE: For bases and act i v i t i es t hat have an act i ve submet er i ng pol i cy i n pl ace and wr i t t en aut hor i zat i on has been r ecei ved, edi t t hi s sect i on as necessar y t o speci f y t he desi r ed l evel of submet er i ng and l ocat i ons.

UFC 1- 200- 02 r ef er ences ASHRAE 90. 1- 2010. But ASHRAE 90. 1- 2010 does not addr ess submet er i ng cr i t er i a. The i nt ended r ef er ence f or t hi s sect i on i s ASHRAE 90. 1- 2013, whi ch does addr ess submet er i ng criteria.

I f submet er i ng i s sel ect ed as an opt i on, coor di nat e r ef er ences t o ASHRAE 90. 1 wi t h t he l ead per son edi t i ng t he Di v i s i on 1 Sect i ons. Typi cal l y , r ef er ences t o ASHRAE 90.