ATTACHMENT 6 - UFGS 26 20 00 (Power Distribution).pdf

USACE / NAVFAC / AFCEC UFGS- 26 20 00 ( August 2023)

Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 26 20 00 ( August 2019)

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 Oct ober 2023

SECTI ON TABLE OF CONTENTS

DI VI SI ON 26 - ELECTRI CAL

SECTI ON 26 20 00

I NTERI OR DI STRI BUTI ON SYSTEM

08/ 23

PART 1 GENERAL

1. 1 REFERENCES

1. 2 DEFI NI TI ONS

1. 3 RELATED REQUI REMENTS

1. 4 SUBMI TTALS

1. 5 QUALI TY ASSURANCE

1. 5. 1 Fuses

1. 5. 2 Regul at or y Requi r ement s

1. 5. 3 St andar d Pr oduct s

1. 5. 3. 1 Al t er nat i ve Qual i f i cat i ons

1. 5. 3. 2 Mat er i al and Equi pment Manuf act ur i ng Dat e

1. 6 MAI NTENANCE

1. 6. 1 El ect r i cal Syst ems

1. 7 WARRANTY

1. 8 SEI SMI C REQUI REMENTS

PART 2 PRODUCTS

2. 1 MATERI ALS AND EQUI PMENT

2. 2 CONDUI T AND FI TTI NGS

2. 2. 1 Ri gi d Met al l i c Condui t

2. 2. 1. 1 Ri gi d, Thr eaded Zi nc- Coat ed St eel Condui t

2. 2. 1. 2 Ri gi d Al umi num Condui t

2. 2. 2 Ri gi d Nonmet al l i c Condui t

2. 2. 3 I nt er medi at e Met al Condui t ( I MC)

2. 2. 4 El ect r i cal , Zi nc- Coat ed St eel Met al l i c Tubi ng ( EMT)

2. 2. 5 Pl ast i c- Coat ed Ri gi d St eel and I MC Condui t

2. 2. 6 Fl exi bl e Met al Condui t

2. 2. 6. 1 Li qui d- Ti ght Fl exi bl e Met al Condui t , St eel

2. 2. 7 Fi t t i ngs f or Met al Condui t , EMT, and Fl exi bl e Met al Condui t

2. 2. 7. 1 Fi t t i ngs f or Ri gi d Met al Condui t and I MC

2. 2. 7. 2 Fi t t i ngs f or EMT

2. 2. 8 Fi t t i ngs f or Ri gi d Nonmet al l i c Condui t

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2. 2. 9 Li qui d- Ti ght Fl exi bl e Nonmet al l i c Condui t

2. 3 SURFACE RACEWAY

2. 3. 1 Sur f ace Met al Raceway

2. 3. 2 Sur f ace Nonmet al l i c Raceway

2. 4 BUSWAY

2. 4. 1 Feeder Busways

2. 4. 2 Pl ug- I n Busways

2. 5 CABLE TRAYS

2. 5. 1 Basket - Type Cabl e Tr ays

2. 5. 2 Tr ough- Type Cabl e Tr ays

2. 5. 3 Ladder - Type Cabl e Tr ays

2. 5. 4 Channel - Type Cabl e Tr ays

2. 5. 5 Sol i d Bot t om- Type Cabl e Tr ays

2. 5. 6 Cant i l ever

2. 6 OPEN TELECOMMUNI CATI ONS CABLE SUPPORT

2. 6. 1 Open Top Cabl e Suppor t s

2. 6. 2 Cl osed Ri ng Cabl e Suppor t s

2. 7 OUTLET BOXES AND COVERS

2. 7. 1 Fl oor Out l et Boxes

2. 7. 2 Out l et Boxes f or Tel ecommuni cat i ons Syst em

2. 7. 3 Cl ock Out l et f or Use i n Ot her Than Wi r ed Cl ock Syst em

2. 8 CABI NETS, JUNCTI ON BOXES, AND PULL BOXES

2. 9 WI RES AND CABLES

2. 9. 1 Conduct or s

2. 9. 1. 1 Equi pment Manuf act ur er Requi r ement s

2. 9. 1. 2 Al umi num Conduct or s

2. 9. 1. 3 Mi ni mum Conduct or Si zes

2. 9. 2 Col or Codi ng

2. 9. 2. 1 Gr ound and Neut r al Conduct or s

2. 9. 2. 2 Ungr ounded Conduct or s

2. 9. 3 I nsul at i on

2. 9. 4 Bondi ng Conduct or s

2. 9. 4. 1 Tel ecommuni cat i ons Bondi ng Backbone ( TBB)

2. 9. 4. 2 Bondi ng Conduct or f or Tel ecommuni cat i ons

2. 9. 5 Ser vi ce Ent r ance Cabl es

2. 9. 6 Nonmet al l i c Sheat hed Cabl e

2. 9. 7 Wi r e and Cabl e f or 400 Her t z ( Hz) Ci r cui t s

2. 9. 8 Met al - Cl ad Cabl e

2. 9. 9 Ar mor ed Cabl e

2. 9. 10 Mi ner al - I nsul at ed, Met al - Sheat hed Cabl e

2. 9. 11 Fl at Conduct or Cabl e

2. 9. 12 Cabl e Tr ay Cabl e or Power Li mi t ed Tr ay Cabl e

2. 9. 13 Cor d Set s and Power - Suppl y Cor ds

2. 10 SPLI CES AND TERMI NATI ON COMPONENTS

2. 11 DEVI CE PLATES

2. 12 SWI TCHES

2. 12. 1 Toggl e Swi t ches

2. 12. 2 Swi t ch wi t h Red Pi l ot Handl e

2. 12. 3 Br eaker s Used as Swi t ches

2. 12. 4 Di sconnect Swi t ches

2. 13 FUSES

2. 13. 1 Fusehol der s

2. 13. 2 Car t r i dge Fuses, Cur r ent Li mi t i ng Type ( Cl ass R)

2. 13. 3 Car t r i dge Fuses, Hi gh- I nt er r upt i ng Capaci t y, Cur r ent Li mi t i ng

Type ( Cl asses J, L, and CC)

2. 13. 4 Car t r i dge Fuses, Cur r ent Li mi t i ng Type ( Cl ass T)

2. 14 RECEPTACLES

2. 14. 1 Spl i t Dupl ex Recept acl es

2. 14. 2 Weat her pr oof Recept acl es

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2. 14. 3 Gr ound- Faul t Ci r cui t I nt er r upt er Recept acl es

2. 14. 4 Speci al Pur pose Recept acl es

2. 14. 5 Pl ugs

2. 14. 6 Range Recept acl es

2. 14. 7 Dr yer Recept acl es

2. 14. 8 Tamper - Resi st ant Recept acl es

2. 14. 9 Ar c- Faul t Ci r cui t I nt er r upt er Recept acl es

2. 15 PANELBOARDS

2. 15. 1 Encl osur e

2. 15. 2 Panel boar d Buses

2. 15. 2. 1 Panel boar d Neut r al s f or Non- Li near Loads

2. 15. 3 Ci r cui t Br eaker s

2. 15. 3. 1 Mul t i pol e Br eaker s

2. 15. 3. 2 Ci r cui t Br eaker Wi t h Gr ound- Faul t Ci r cui t I nt er r upt er

2. 15. 3. 3 Ar c- Faul t Ci r cui t I nt er r upt er s

2. 15. 4 Fusi bl e Swi t ches f or Panel boar ds

2. 15. 5 400 Hz Panel boar d and Br eaker s

2. 15. 6 Br anch Ci r cui t Moni t or i ng Panel boar ds

2. 15. 7 Li ght i ng Cont r ol Panel boar ds

2. 16 RESI DENTI AL LOAD CENTERS

2. 16. 1 RLC Buses

2. 16. 2 Ci r cui t Br eaker s

2. 16. 2. 1 Mul t i pol e Br eaker s

2. 16. 2. 2 Ci r cui t Br eaker Wi t h Gr ound- Faul t Ci r cui t I nt er r upt er

2. 16. 2. 3 Ar c- Faul t Ci r cui t - I nt er r upt er s

2. 17 LOAD CENTERS FOR HOUSI NG UNI TS

2. 17. 1 Panel boar d Buses

2. 17. 2 Ci r cui t Br eaker s

2. 17. 2. 1 Mul t i pol e Br eaker s

2. 17. 2. 2 Ar c- Faul t Ci r cui t - I nt er r upt er s

2. 18 ENCLOSED CI RCUI T BREAKERS

2. 19 MOTOR SHORT- CI RCUI T PROTECTOR ( MSCP)

2. 20 TRANSFORMERS

2. 20. 1 Speci f i ed Tr ansf or mer Ef f i c i ency

2. 20. 2 K- Rat ed Tr ansf or mer s

2. 20. 3 Har moni c Mi t i gat i ng Tr ansf or mer s

2. 21 MOTORS

2. 21. 1 Hi gh Ef f i c i ency Si ngl e- Phase Mot or s

2. 21. 2 Pr emi um Ef f i c i ency Pol yphase and Si ngl e- Phase Mot or s

2. 21. 3 Mot or Si zes

2. 21. 4 Wi r i ng and Condui t

2. 22 MOTOR CONTROLLERS

2. 22. 1 Cont r ol Wi r i ng

2. 22. 2 Cont r ol Ci r cui t Ter mi nal Bl ocks

2. 22. 2. 1 Types of Ter mi nal Bl ocks

2. 22. 3 Cont r ol Ci r cui t s

2. 22. 4 Encl osur es f or Mot or Cont r ol l er s

2. 22. 5 Mul t i pl e- Speed Mot or Cont r ol l er s and Rever si bl e Mot or

Cont r ol l er s

2. 22. 6 Pushbut t on St at i ons

2. 22. 7 Pi l ot and I ndi cat i ng Li ght s

2. 22. 8 Reduced- Vol t age Cont r ol l er s

2. 23 MANUAL MOTOR STARTERS ( MOTOR RATED SWI TCHES)

2. 23. 1 Pi l ot Li ght s

2. 24 MOTOR CONTROL CENTERS

2. 24. 1 Bus Syst ems

2. 24. 1. 1 Hor i zont al and Mai n Buses

2. 24. 1. 2 Ver t i cal Bus

2. 24. 1. 3 Gr ound Bus

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2. 24. 1. 4 Neut r al Bus

2. 24. 2 Combi nat i on Mot or Cont r ol l er s

2. 24. 3 Space Heat er s

2. 25 LOCKOUT REQUI REMENTS

2. 26 TELECOMMUNI CATI ONS SYSTEM

2. 27 COMMUNI TY ANTENNA TELEVI SI ON ( CATV) SYSTEM

2. 27. 1 CATV Out l et s

2. 27. 2 CATV Facepl at es

2. 27. 3 Backboar ds

2. 28 GROUNDI NG AND BONDI NG EQUI PMENT

2. 28. 1 Gr ound Rods

2. 28. 2 Gr ound Bus

2. 28. 3 Secondar y Bondi ng Busbar

2. 29 HAZARDOUS LOCATI ONS

2. 30 MANUFACTURER' S NAMEPLATE

2. 31 FI ELD FABRI CATED NAMEPLATES

2. 32 WARNI NG SI GNS

2. 33 FI RESTOPPI NG MATERI ALS

2. 34 WI REWAYS

2. 35 METERI NG

2. 36 METER BASE ONLY

2. 37 SURGE PROTECTI VE DEVI CES

2. 38 FACTORY APPLI ED FI NI SH

2. 39 SOURCE QUALI TY CONTROL

2. 39. 1 Tr ansf or mer Fact or y Test s

2. 40 COORDI NATED POWER SYSTEM PROTECTI ON

PART 3 EXECUTI ON

3. 1 I NSTALLATI ON

3. 1. 1 Under gr ound Ser vi ce

3. 1. 2 Over head Ser vi ce

3. 1. 3 Hazar dous Locat i ons

3. 1. 4 Ser vi ce Ent r ance I dent i f i cat i on

3. 1. 4. 1 Label s

3. 1. 5 Wi r i ng Met hods

3. 1. 5. 1 Pul l Wi r e

3. 1. 5. 2 Met al - Cl ad Cabl e

3. 1. 5. 3 Ar mor ed Cabl e

3. 1. 5. 4 Fl at Conduct or Cabl e

3. 1. 6 Condui t I nst al l at i on

3. 1. 6. 1 Rest r i ct i ons Appl i cabl e t o Al umi num Condui t

3. 1. 6. 2 Rest r i ct i ons Appl i cabl e t o EMT

3. 1. 6. 3 Rest r i ct i ons Appl i cabl e t o Nonmet al l i c Condui t

3. 1. 6. 4 Rest r i ct i ons Appl i cabl e t o Fl exi bl e Condui t

3. 1. 6. 5 Under gr ound Condui t

3. 1. 6. 6 Condui t I nt er i or t o Bui l di ngs f or 400 Hz Ci r cui t s

3. 1. 6. 7 Condui t f or Ci r cui t s Rat ed Gr eat er Than 600 Vol t s

3. 1. 6. 8 Condui t I nst al l ed Under Fl oor Sl abs

3. 1. 6. 9 Condui t Thr ough Fl oor Sl abs

3. 1. 6. 10 Condui t I nst al l ed i n Concr et e Fl oor Sl abs or Concr et e

Wal l s

3. 1. 6. 11 St ub- Ups

3. 1. 6. 12 Condui t Suppor t

3. 1. 6. 13 Di r ect i onal Changes i n Condui t Runs

3. 1. 6. 14 Locknut s and Bushi ngs

3. 1. 6. 15 Fl exi bl e Connect i ons

3. 1. 6. 16 Tel ecommuni cat i ons and Si gnal Syst em Pat hway

3. 1. 6. 17 Communi t y Ant enna Tel evi s i on ( CATV) Syst em Condui t s

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3. 1. 7 Busway I nst al l at i on

3. 1. 8 Cabl e Tr ay I nst al l at i on

3. 1. 9 Tel ecommuni cat i ons Cabl e Suppor t I nst al l at i on

3. 1. 10 Boxes, Out l et s, and Suppor t s

3. 1. 10. 1 Boxes

3. 1. 10. 1. 1 Wal l - Mount ed Tel ecommuni cat i ons Out l et Box

3. 1. 10. 2 Pul l Boxes

3. 1. 10. 3 Ext ensi on Ri ngs

3. 1. 11 Mount i ng Hei ght s

3. 1. 12 Nonmet al l i c Sheat hed Cabl e I nst al l at i on

3. 1. 13 Mi ner al I nsul at ed, Met al Sheat hed ( Type MI ) Cabl e I nst al l at i on

3. 1. 14 Conduct or I dent i f i cat i on

3. 1. 14. 1 Mar ki ng St r i ps

3. 1. 15 Spl i ces

3. 1. 15. 1 Spl i ces of Al umi num Conduct or s

3. 1. 16 Ter mi nat i ng Al umi num Conduct or s

3. 1. 16. 1 Ter mi nat i on t o Copper Bus

3. 1. 16. 2 Ter mi nat i on t o Al umi num Bus

3. 1. 17 Cover s and Devi ce Pl at es

3. 1. 18 El ect r i cal Penet r at i ons

3. 1. 19 Gr oundi ng and Bondi ng

3. 1. 19. 1 Gr ound Rods

3. 1. 19. 2 Gr oundi ng Connect i ons

3. 1. 19. 3 Gr ound Bus

3. 1. 19. 4 Resi st ance

3. 1. 19. 5 Tel ecommuni cat i ons Syst em

3. 1. 20 Equi pment Connect i ons

3. 1. 21 El evat or

3. 1. 22 Gover nment - Fur ni shed Equi pment

3. 1. 23 Repai r of Exi st i ng Wor k

3. 1. 23. 1 Wor kmanshi p

3. 1. 23. 2 Exi st i ng Conceal ed Wi r i ng t o be Removed

3. 1. 23. 3 Removal of Exi st i ng El ect r i cal Di st r i but i on Syst em

3. 1. 23. 4 Cont i nuat i on of Ser vi ce

3. 1. 24 Wat t hour Met er s

3. 1. 25 Sur ge Pr ot ect i ve Devi ces

3. 2 FI ELD FABRI CATED NAMEPLATE MOUNTI NG

3. 3 WARNI NG SI GN MOUNTI NG

3. 4 FI ELD APPLI ED PAI NTI NG

3. 5 FI ELD QUALI TY CONTROL

3. 5. 1 Devi ces Subj ect t o Manual Oper at i on

3. 5. 2 600- Vol t Wi r i ng Test

3. 5. 3 Tr ansf or mer Test s

3. 5. 4 Gr ound- Faul t Recept acl e Test

3. 5. 5 Ar c- Faul t Recept acl e Test

3. 5. 6 Gr oundi ng Syst em Test

3. 5. 7 Wat t hour Met er

3. 5. 8 Phase Rot at i on Test

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

SECTI ON 26 20 00 Page 5

USACE / NAVFAC / AFCEC UFGS- 26 20 00 ( August 2023)

Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 26 20 00 ( August 2019)

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 Oct ober 2023

SECTI ON 26 20 00

I NTERI OR DI STRI BUTI ON SYSTEM

08/ 23

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or t he pr ocur ement , i nst al l at i on, and t est i ng of el ect r i cal wi r i ng syst ems f or const r uct i on pr oj ect s.

Tel ecommuni cat i ons cabl i ng i s cover ed i n Sect i on

27 10 00 BUI LDI NG TELECOMMUNI CATI ONS CABLI NG

SYSTEM. These wi r i ng syst ems pr i mar i l y i nvol ve vol t ages of 1, 000 vol t s and l ess and mai nl y i nvol ve i nt er i or syst ems. When vol t ages gr eat er t han 1, 000 vol t s ar e br ought i nt o a f aci l i t y , consul t and use Sect i on 26 11 16 SECONDARY UNI T SUBSTATI ONS; Sect i on 26 12 21 SI NGLE- PHASE PAD- MOUNTED TRANSFORMERS; and Sect i on 33 71 01 OVERHEAD TRANSMI SSI ON AND DI STRI BUTI ON. Al so consul t Sect i on 33 71 02, UNDERGROUND ELECTRI CAL DI STRI BUTI ON and Sect i on

26 11 14. 00 10 MAI N ELECTRI C SUPPLY STATI ON AND

SUBSTATI ON. Add r equi r ement s f or mat er i al s and pr ocedur es f or speci al or unusual desi gn as necessar y t o f i t speci f i c pr oj ect s.

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 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 pr esent .

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) .

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NOTE: Ensur e t he f ol l owi ng i nf or mat i on i s shown on t he pr oj ect dr awi ngs:

1. Locat i on of equi pment

2. Si ngl e- l i ne di agr ams el evat i ons, l i mi t i ng di mensi ons, and equi pment r at i ngs whi ch ar e not cover ed i n t he speci f i cat i ons

3. Remot e i ndi cat i ng or cont r ol r equi r ement s.

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.

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 si 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 wi t hi 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 ( 2014; Er r at a 2016) El ect r i c Met er s - Code f or El ect r i c i t y Met er i ng

ASTM I NTERNATI ONAL ( ASTM)

ASTM B1 ( 2013) St andar d Speci f i cat i on f or Har d- Dr awn Copper Wi r e

ASTM B8 ( 2011; R 2017) St andar d Speci f i cat i on f or Concent r i c- Lay- St r anded Copper Conduct or s, Har d, Medi um- Har d, or Sof t

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

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

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 ( 2023) Nat i onal El ect r i cal Saf et y Code

I EEE St ds Di ct i onar y ( 2009) I EEE St andar ds Di ct i onar y: Gl ossar y of Ter ms & Def i ni t i ons

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

NETA ATS ( 2021) 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 CONTRACTORS ASSOCI ATI ON ( NECA)

NECA NEI S 1 ( 2015) St andar d f or Good Wor kmanshi p i n El ect r i cal Const r uct i on

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

ANSI C12. 7 ( 2022) Requi r ement s f or Wat t hour Met er Socket s

ANSI C80. 1 ( 2020) Amer i can Nat i onal St andar d f or El ect r i cal Ri gi d St eel Condui t ( ERSC)

ANSI C80. 3 ( 2020) Amer i can Nat i onal St andar d f or El ect r i cal Met al l i c Tubi ng ( EMT)

ANSI C80. 5 ( 2020) Amer i can Nat i onal St andar d f or El ect r i cal Ri gi d Al umi num Condui t

NEMA 250 ( 2020) Encl osur es f or El ect r i cal Equi pment ( 1000 Vol t s Maxi mum)

NEMA BU 1. 1 ( 2010) Gener al I nst r uct i ons f or Pr oper Handl i ng, I nst al l at i on, Oper at i on and Mai nt enance of Busway Rat ed 600 V or Less

NEMA FU 1 ( 2012) Low Vol t age Car t r i dge Fuses

NEMA I CS 1 ( 2022) St andar d f or I ndust r i al Cont r ol and Syst ems: Gener al Requi r ement s

NEMA I CS 2 ( 2000; R 2020) I ndust r i al Cont r ol and Syst ems Cont r ol l er s, Cont act or s, and Over l oad Rel ays Rat ed 600 V

NEMA I CS 3 ( 2005; R 2010) Medi um- Vol t age Cont r ol l er s Rat ed 2001 t o 7200 V AC

NEMA I CS 4 ( 2015) Appl i cat i on Gui del i ne f or Ter mi nal Bl ocks

NEMA I CS 6 ( 1993; R 2016) I ndust r i al Cont r ol and

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Syst ems: Encl osur es

NEMA KS 1 ( 2013) Encl osed and Mi scel l aneous Di st r i but i on Equi pment Swi t ches ( 600 V Maxi mum)

NEMA MG 1 ( 2021) Mot or s and Gener at or s

NEMA MG 10 ( 2017) Ener gy Management Gui de f or Sel ect i on and Use of Fi xed Fr equency Medi um AC Squi r r el - Cage Pol yphase I nduct i on Mot or s

NEMA MG 11 ( 1977; R 2012) Ener gy Management Gui de f or Sel ect i on and Use of Si ngl e Phase Mot or s

NEMA RN 1 ( 2005; R 2013) Pol yvi nyl - Chl or i de ( PVC) Ext er nal l y Coat ed Gal vani zed Ri gi d St eel Condui t and I nt er medi at e Met al Condui t

NEMA ST 20 ( 2014) Dr y- Type Tr ansf or mer s f or Gener al Appl i cat i ons

NEMA TC 2 ( 2020) St andar d f or El ect r i cal Pol yvi nyl Chl or i de ( PVC) Condui t

NEMA TC 3 ( 2021) Pol yvi nyl Chl or i de ( PVC) Fi t t i ngs f or Use Wi t h Ri gi d PVC Condui t and Tubi ng

NEMA TC 14 ( 2002) St andar d f or Rei nf or ced Ther moset t i ng Resi n Condui t ( RTRC) and Fi t t i ngs

NEMA VE 2 ( 2018; ERTA 1- 2 2018) Cabl e Tr ay I nst al l at i on Gui del i nes

NEMA WD 1 ( 1999; R 2020) St andar d f or Gener al Col or Requi r ement s f or Wi r i ng Devi ces

NEMA WD 6 ( 2021) Wi r i ng Devi ces Di mensi ons Speci f i cat i ons

NEMA Z535. 4 ( 2011; R 2017) Pr oduct Saf et y Si gns and Label s

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

NFPA 70 ( 2023; ERTA 4 2023) Nat i onal El ect r i cal Code

NFPA 70E ( 2024) St andar d f or El ect r i cal Saf et y i n t he Wor kpl ace

NFPA 780 ( 2023) St andar d f or t he I nst al l at i on of Li ght ni ng Pr ot ect i on Syst ems

TELECOMMUNI CATI ONS I NDUSTRY ASSOCI ATI ON ( TI A)

TI A- 568. 1 ( 2020e) Commer ci al Bui l di ng

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Tel ecommuni cat i ons I nf r ast r uct ur e St andar d

TI A- 569 ( 2019e; Add 1 2022) Tel ecommuni cat i ons Pat hways and Spaces

TI A- 607 ( 2019d) Gener i c Tel ecommuni cat i ons Bondi ng and Gr oundi ng ( Ear t hi ng) f or Cust omer Pr emi ses

U. S. NATI ONAL ARCHI VES AND RECORDS ADMI NI STRATI ON ( NARA)

10 CFR 431 Ener gy Ef f i c i ency Pr ogr am f or Cer t ai n Commer ci al and I ndust r i al Equi pment

29 CFR 1910. 147 The Cont r ol of Hazar dous Ener gy ( Lock Out / Tag Out )

29 CFR 1910. 303 El ect r i cal , Gener al

UNDERWRI TERS LABORATORI ES ( UL)

UL 1 ( 2005; Repr i nt Jan 2022) UL St andar d f or Saf et y Fl exi bl e Met al Condui t

UL 4 ( 2004; Repr i nt Mar 2021) UL St andar d f or Saf et y Ar mor ed Cabl e

UL 5 ( 2016; Repr i nt Jul 2022) UL St andar d f or Saf et y Sur f ace Met al Raceways and Fi t t i ngs

UL 5A ( 2015; Repr i nt Aug 2020) Nonmet al l i c Sur f ace Raceways and Fi t t i ngs

UL 6 ( 2022) UL St andar d f or Saf et y El ect r i cal Ri gi d Met al Condui t - St eel

UL 6A ( 2008; Repr i nt Mar 2021) UL St andar d f or Saf et y El ect r i cal Ri gi d Met al Condui t - Al umi num, Red Br ass, and St ai nl ess St eel

UL 20 ( 2018; Repr i nt May 2023) UL St andar d f or Saf et y Gener al - Use Snap Swi t ches

UL 44 ( 2018; Repr i nt May 2021) UL St andar d f or Saf et y Ther moset - I nsul at ed Wi r es and Cabl es

UL 50 ( 2015) UL St andar d f or Saf et y Encl osur es f or El ect r i cal Equi pment , Non- Envi r onment al Consi der at i ons

UL 67 ( 2018; Repr i nt Aug 2023) UL St andar d f or Saf et y Panel boar ds

UL 83 ( 2017; Repr i nt Mar 2020) UL St andar d f or Saf et y Ther mopl ast i c- I nsul at ed Wi r es and Cabl es

UL 248- 4 ( 2010; Repr i nt Apr 2019) Low- Vol t age Fuses

- Par t 4: Cl ass CC Fuses

SECTI ON 26 20 00 Page 10

UL 248- 8 ( 2011; Repr i nt Aug 2020) Low- Vol t age Fuses

- Par t 8: Cl ass J Fuses

UL 248- 10 ( 2011; Repr i nt Aug 2020) Low- Vol t age Fuses

- Par t 10: Cl ass L Fuses

UL 248- 12 ( 2011; Repr i nt Aug 2020) Low Vol t age Fuses

- Par t 12: Cl ass R Fuses

UL 248- 15 ( 2018) Low- Vol t age Fuses - Par t 15: Cl ass T Fuses

UL 360 ( 2013; Repr i nt Apr 2023) UL St andar d f or Saf et y Li qui d- Ti ght Fl exi bl e Met al Condui t

UL 467 ( 2022) UL St andar d f or Saf et y Gr oundi ng and Bondi ng Equi pment

UL 486A- 486B ( 2018; Repr i nt Jul 2023) UL St andar d f or Saf et y Wi r e Connect or s

UL 486C ( 2018; Repr i nt May 2021) UL St andar d f or Saf et y Spl i c i ng Wi r e Connect or s

UL 489 ( 2016; Rev 2019) UL St andar d f or Saf et y Mol ded- Case Ci r cui t Br eaker s, Mol ded- Case Swi t ches and Ci r cui t - Br eaker Encl osur es

UL 498 ( 2017; Repr i nt May 2023) UL St andar d f or Saf et y At t achment Pl ugs and Recept acl es

UL 506 ( 2017; Repr i nt Jan 2022) UL St andar d f or Saf et y Speci al t y Tr ansf or mer s

UL 508 ( 2018; Repr i nt Jul 2021) UL St andar d f or Saf et y I ndust r i al Cont r ol Equi pment

UL 510 ( 2020; Dec 2022) UL St andar d f or Saf et y Pol yvi nyl Chl or i de, Pol yet hyl ene and Rubber I nsul at i ng Tape

UL 514A ( 2013; Repr i nt Jun 2022) UL St andar d f or Saf et y Met al l i c Out l et Boxes

UL 514B ( 2012; Repr i nt May 2020) Condui t , Tubi ng and Cabl e Fi t t i ngs

UL 514C ( 2014; Repr i nt Feb 2020) UL St andar d f or Saf et y Nonmet al l i c Out l et Boxes, Fl ush- Devi ce Boxes, and Cover s

UL 651 ( 2011; Repr i nt May 2022) UL St andar d f or Saf et y Schedul e 40, 80, Type EB and A Ri gi d PVC Condui t and Fi t t i ngs

UL 674 ( 2022) UL St andar d f or Saf et y El ect r i c Mot or s and Gener at or s f or Use i n Hazar dous ( Cl assi f i ed) Locat i ons

SECTI ON 26 20 00 Page 11

UL 719 ( 2015; Repr i nt Jan 2023) UL St andar d f or Saf et y Nonmet al l i c- Sheat hed Cabl es

UL 797 ( 2007; Repr i nt Apr 2023) UL St andar d f or Saf et y El ect r i cal Met al l i c Tubi ng - - St eel

UL 817 ( 2015; Repr i nt May 2023) UL St andar d f or Saf et y Cor d Set s and Power - Suppl y Cor ds

UL 845 ( 2021) UL St andar d f or Saf et y Mot or Cont r ol Cent er s

UL 854 ( 2020; Repr i nt Jan 2022) St andar d f or Ser vi ce- Ent r ance Cabl es

UL 857 ( 2009; Repr i nt Apr 2021) UL St andar d f or Saf et y Busways

UL 869A ( 2006; Repr i nt Jun 2020) Ref er ence St andar d f or Ser vi ce Equi pment

UL 870 ( 2016; Repr i nt Mar 2019) UL St andar d f or Saf et y Wi r eways, Auxi l i ar y Gut t er s, and Associ at ed Fi t t i ngs

UL 943 ( 2016; Repr i nt Sep 2023) UL St andar d f or Saf et y Gr ound- Faul t Ci r cui t - I nt er r upt er s

UL 984 ( 1996; Repr i nt Sep 2005) Her met i c Ref r i ger ant Mot or - Compr essor s

UL 1004- 1 ( 2012; Repr i nt Nov 2020) UL St andar d f or Saf et y Rot at i ng El ect r i cal Machi nes - Gener al Requi r ement s

UL 1063 ( 2017; Repr i nt Jun 2022) UL St andar d f or Saf et y Machi ne- Tool Wi r es and Cabl es

UL 1203 ( 2023) UL St andar d f or Saf et y Expl osi on- Pr oof and Dust - I gni t i on- Pr oof El ect r i cal Equi pment f or Use i n Hazar dous ( Cl assi f i ed) Locat i ons

UL 1242 ( 2006; Repr i nt Apr 2022) UL St andar d f or Saf et y El ect r i cal I nt er medi at e Met al Condui t - - St eel

UL 1283 ( 2017) UL St andar d f or Saf et y El ect r omagnet i c I nt er f er ence Fi l t er s

UL 1449 ( 2021; Repr i nt Dec 2022) UL St andar d f or Saf et y Sur ge Pr ot ect i ve Devi ces

UL 1561 ( 2011; Repr i nt Aug 2023) Dr y- Type Gener al Pur pose and Power Tr ansf or mer s

UL 1569 ( 2018) UL St andar d f or Saf et y Met al - Cl ad Cabl es

SECTI ON 26 20 00 Page 12

UL 1660 ( 2019; Repr i nt Jan 2022) Li qui d- Ti ght Fl exi bl e Nonmet al l i c Condui t

UL 1699 ( 2017; Repr i nt Feb 2022) UL St andar d f or Saf et y Ar c- Faul t Ci r cui t - I nt er r upt er s

UL 2043 ( 2023) Fi r e Test f or Heat and Vi s i bl e Smoke Rel ease f or Di scr et e Pr oduct s and Thei r Accessor i es I nst al l ed i n Ai r - Handl i ng Spaces

UL 4248- 1 ( 2022) UL St andar d f or Saf et y Fusehol der s

- Par t 1: Gener al Requi r ement s

UL 4248- 12 ( 2018; Repr i nt Feb 2022) UL St andar d f or Saf et y Fusehol der s - Par t 12: Cl ass R

1. 2 DEFI NI TI ONS

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 St ds Di ct i onar y.

1. 3 RELATED REQUI REMENTS

NOTE: I ncl ude Sect i on 25 05 11 CYBERSECURI TY FOR FACI LI TY- RELATED CONTROL SYSTEMS on al l pr oj ect s r equi r i ng Cyber secur i t y f or 26 20 00: I nt er i or Di st r i but i on Syst em.

Sect i on 25 05 11 CYBERSECURI TY FOR FACI LI TY- RELATED CONTROL SYSTEMS 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. 4 SUBMI TTALS

NOTE: Revi ew Submi t t al Descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t , and cor r espondi ng submi t t al i t ems i n t he t ext , t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect . The Gui de Speci f i cat i on t echni cal edi t or s have cl assi f i ed t hose i t ems t hat r equi r e Gover nment appr oval , due t o t hei r compl exi t y or cr i t i cal i t y, wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a " G" t o an i t em 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 pr oj ect .

For Ar my pr oj ect s, f i l l i n t he empt y br acket s f ol l owi ng t he " G" c l assi f i cat i on, wi t h a code of up t o t hr ee char act er s 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 Ar chi t ect - Engi neer ; " DO" f or Di st r i ct Of f i ce

SECTI ON 26 20 00 Page 13

( 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 ct 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 and Ai r For ce pr oj ect s.

The " S" c l assi f i cat i on i ndi cat es submi t t al s r equi r ed as pr oof of compl i ance f or sust ai nabi l i t y Gui di ng Pr i nci pl es Val i dat i on or Thi r d Par t y Cer t i f i cat i on and as descr i bed i n Sect i on 01 33 00 SUBMI TTAL

PROCEDURES.

Choose t he f i r st br acket ed i t em f or Navy and Ai r For ce 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" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e [ f or Cont r act or Qual i t y Cont r ol appr oval . ] [ f or i nf or mat i on onl y. When used, a code f ol l owi ng t he " G" c l assi f i cat 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 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

Panel boar ds; G[ , [ _____] ]

Tr ansf or mer s; G[ , [ _____] ]

Busway; G[ , [ _____] ]

Cabl e Tr ays; G[ , [ _____] ]

Mot or Cont r ol Cent er s; G[ , [ _____] ]

Wi r eways; G[ , [ _____] ]

[ Load Cent er s f or Housi ng Uni t s; G[ , [ _____] ]

] Mar ki ng St r i ps Dr awi ngs; G[ , [ _____] ]

SD- 03 Pr oduct Dat a

Recept acl es; G[ , [ _____] ]

Ci r cui t Br eaker s; G[ , [ _____] ]

Swi t ches; G[ , [ _____] ]

Tr ansf or mer s; G[ , [ _____] ]

Encl osed Ci r cui t Br eaker s; G[ , [ _____] ]

Mot or Cont r ol l er s; G[ , [ _____] ]

[ Combi nat i on Mot or Cont r ol l er s; G[ , [ _____] ]

] [ Load Cent er s f or Housi ng Uni t s; G[ , [ _____] ]

SECTI ON 26 20 00 Page 14

] Manual Mot or St ar t er s; G[ , [ _____] ]

[ Resi dent i al Load Cent er s; G[ , [ _____] ]

] [ Met er i ng; G[ , [ _____] ]

] [ Met er Base Onl y; G[ , [ _____] ]

] [ CATV Out l et s; G[ , [ _____] ]

] Secondar y Bondi ng Busbar ; G[ , [ _____] ]

Sur ge Pr ot ect i ve Devi ces; G[ , [ _____] ]

Cabl e Tr ays; G[ , [ _____] ]

[ SD- 05 Desi gn Dat a

Cabl e Tr ay Desi gn; G[ , [ _____] ]

] SD- 06 Test Repor t s

600- vol t Wi r i ng Test ; G[ , [ _____] ]

Gr oundi ng Syst em Test ; G[ , [ _____] ]

Tr ansf or mer Test s; G[ , [ _____] ]

Gr ound- f aul t Recept acl e Test ; G[ , [ _____] ]

Ar c- f aul t Recept acl e Test ; G[ , [ _____] ]

SD- 07 Cer t i f i cat es

Fuses; G[ , [ _____] ]

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Tr ansf or mer Fact or y Test s

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

NOTE: Coor di nat e wi t h opt i ons under par agr aphs MAI NTENANCE and METERI NG.

[ El ect r i cal Syst ems, Dat a Package 5; G[ , [ _____] ]

] [ Met er i ng, Dat a Package 5; G[ , [ _____] ]

] 1. 5 QUALI TY ASSURANCE

1. 5. 1 Fuses

Submi t coor di nat i on dat a as speci f i ed i n par agr aph, FUSES of t hi s sect i on.

SECTI ON 26 20 00 Page 15

1. 5. 2 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, " 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 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. NECA NEI S 1 shal l be consi der ed t he mi ni mum st andar d f or wor kmanshi p.

1. 5. 3 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:

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. 3. 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 f ur ni shed.

1. 5. 3. 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 3 year s 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 MAI NTENANCE

NOTE: Sel ect t he opt i on bel ow onl y i f t he syst em i s consi der ed compl ex and t her e i s a need f or det ai l ed syst em i nf or mat i on.

[ 1. 6. 1 El ect r i cal Syst ems

Submi t oper at i on and mai nt enance dat a i n accor dance wi t h Sect i on 01 78 23, OPERATI ON AND MAI NTENANCE DATA and as speci f i ed her ei n. Submi t oper at i on and mai nt enance manual s f or el ect r i cal syst ems t hat pr ovi de basi c dat a r el at i ng t o t he desi gn, oper at i on, and mai nt enance of t he el ect r i cal di st r i but i on syst em f or t he bui l di ng. I ncl ude t he f ol l owi ng:

a. Si ngl e l i ne di agr am of t he " as- bui l t " bui l di ng el ect r i cal syst em.

SECTI ON 26 20 00 Page 16

b. Schemat i c di agr am of el ect r i cal cont r ol syst em ( ot her t han HVAC, cover ed el sewher e) .

c. Manuf act ur er s ' oper at i ng and mai nt enance manual s on act i ve el ect r i cal equi pment .

] 1. 7 WARRANTY

Pr ovi de equi pment i t ems suppor t ed by ser vi ce or gani zat i ons t hat ar e 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 .

[ 1. 8 SEI SMI C REQUI REMENTS

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

When di r ect ed t o meet sei smi c r equi r ement s, edi t Sect i ons 13 48 73 SEI SMI C CONTROL FOR MI SCELLANEOUS EQUI PMENT and 26 05 48 SEI SMI C PROTECTI ON FOR ELECTRI CAL EQUI PMENT t o sui t t he pr oj ect and i ncl ude i n t he cont r act document s. Edi t t he f ol l owi ng par agr aph and i ncl ude i t i n t he pr oj ect speci f i cat i on. When a Gover nment desi gner i s t he Engi neer of Recor d, pr ovi de sei smi c r equi r ement s on t he dr awi ngs.

Pr ovi de sei smi c det ai l s[ conf or mi ng t o[ Sect i on 13 48 73 SEI SMI C CONTROL FOR MI SCELLANEOUS EQUI PMENT] [ and t o] [ Sect i on 26 05 48 SEI SMI C PROTECTI ON FOR ELECTRI CAL EQUI PMENT] ] [ as i ndi cat ed] .

] PART 2 PRODUCTS

2. 1 MATERI ALS AND EQUI PMENT

As a mi ni mum, meet r equi r ement s of UL, wher e UL st andar ds ar e est abl i shed f or t hose i t ems, and r equi r ement s of NFPA 70 f or al l mat er i al s, equi pment , and devi ces.

2. 2 CONDUI T AND FI TTI NGS

NOTE: The Uses Per mi t t ed ar e as modi f i ed by UFC 3- 520- 01 ( See Tabl e 3- 1) , " I nt er i or El ect r i cal Syst ems. " The Uses Not Per mi t t ed ar e as speci f i ed i n NFPA 70 and when r est r i ct ed by ot her UFCs f or speci f i c t ypes of bui l di ngs, such as medi cal f aci l i t i es. Do not use f l exi bl e met al condui t i n damp and wet l ocat i ons and f or pumps. Do not use El ect r i cal Nonmet al l i c Tubi ng ( ENT) .

Use mal l eabl e i r on seal el ect r i cal f i t t i ngs i n f uel val ve pi t s and si mi l ar l ocat i ons wher e f i t t i ngs ar e exposed t o pot ent i al f r eeze t haw envi r onment s.

Nonmet al l i c f i t t i ngs have f ai l ed i n t hese envi r onment s.

SECTI ON 26 20 00 Page 17

Conf or m t o t he f ol l owi ng:

2. 2. 1 Ri gi d Met al l i c Condui t

2. 2. 1. 1 Ri gi d, Thr eaded Zi nc- Coat ed St eel Condui t

ANSI C80. 1, UL 6.

2. 2. 1. 2 Ri gi d Al umi num Condui t

ANSI C80. 5, UL 6A.

2. 2. 2 Ri gi d Nonmet al l i c Condui t

PVC Type EPC- 40[ , and EPC- 80] i n accor dance wi t h NEMA TC 2, UL 651[ , or f i ber gl ass condui t , i n accor dance wi t h NEMA TC 14] .

2. 2. 3 I nt er medi at e Met al Condui t ( I MC)

UL 1242, z i nc- coat ed st eel onl y.

2. 2. 4 El ect r i cal , Zi nc- Coat ed St eel Met al l i c Tubi ng ( EMT)

UL 797, ANSI C80. 3.

2. 2. 5 Pl ast i c- Coat ed Ri gi d St eel and I MC Condui t

NEMA RN 1, Type 40( 1 mm 40 mi l s t hi ck) .

2. 2. 6 Fl exi bl e Met al Condui t

UL 1, l i mi t ed t o 1829 mm 6 f eet .

2. 2. 6. 1 Li qui d- Ti ght Fl exi bl e Met al Condui t , St eel

UL 360, l i mi t ed t o 1829 mm 6 f eet .

2. 2. 7 Fi t t i ngs f or Met al Condui t , EMT, and Fl exi bl e Met al Condui t

UL 514B. Fer r ous f i t t i ngs: cadmi um- or z i nc- coat ed i n accor dance wi t h

UL 514B.

2. 2. 7. 1 Fi t t i ngs f or Ri gi d Met al Condui t and I MC

Thr eaded- t ype. Spl i t coupl i ngs unaccept abl e.

2. 2. 7. 2 Fi t t i ngs f or EMT

NOTE: Moi st ur e absor bed wi t hi n di e- cast f i t t i ngs may cause t hem t o det er i or at e mor e r api dl y t han st eel f i t t i ngs. Ut i l i ze st eel f i t t i ngs i n damp or wet l ocat i ons, or when r equest ed by Act i v i t y on I nst al l at i ons and Bases t hat have hi gh ambi ent humi di t y envi r onment s.

[ Di e Cast ] [ St eel ] compr essi on t ype.

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2. 2. 8 Fi t t i ngs f or Ri gi d Nonmet al l i c Condui t

NEMA TC 3 f or PVC[ and NEMA TC 14 f or f i ber gl ass] , and UL 514B.

2. 2. 9 Li qui d- Ti ght Fl exi bl e Nonmet al l i c Condui t

NOTE: Do not use l i qui d- t i ght f l exi bl e nonmet al l i c condui t s i n Cont i nent al Uni t ed St at es ( CONUS) . I n over seas l ocat i ons, onl y use when speci f i cal l y al l owed by t he Aut hor i t y Havi ng Jur i sdi ct i on.

UL 1660.

2. 3 SURFACE RACEWAY

2. 3. 1 Sur f ace Met al Raceway

NOTE: UFC 3- 520- 01 aut hor i zes t he use of sur f ace met al r aceway onl y f or bui l di ng i mpr ovement s, r enovat i ons or f or appl i cat i ons wher e a var i et y of cor d- and- pl ug connect ed equi pment wi l l be ut i l i zed i n a l i mi t ed space, such as i n some ar eas of medi cal f aci l i t i es, shops, and l abor at or i es. Aut hor i zed f or use on acoust i c- r at ed wal l s t o l i mi t t he number of penet r at i ons and mai nt ai n acoust i cal i nt egr i t y.

Typi cal appl i cat i ons i ncl ude spaces such as Sensi t i ve Compar t ment ed I nf or mat i on Faci l i t i es ( SCI F) and Speci al Access Pr ogr am Faci l i t i es ( SAPF) .

UL 5, t wo- pi ece pai nt ed st eel , t ot al l y encl osed, snap- cover t ype. [ Pr ovi de mul t i pl e out l et - t ype r aceway wi t h gr oundi ng- t ype r ecept acl e wher e i ndi cat ed. Pr ovi de r ecept acl es as speci f i ed her ei n, spaced a mi ni mum of one ever y [ 455] [ _____] mm [ 18] [ _____] i nches. ] [ Wi r e al t er nat e r ecept acl es on di f f er ent c i r cui t s. ]

2. 3. 2 Sur f ace Nonmet al l i c Raceway

NOTE: The UFC 3- 520- 01 def i ni t i on of " subj ect t o physi cal damage" pr ohi bi t s t he use of nonmet al l i c wi r eways f or ext er i or appl i cat i ons i nst al l ed l ess t han 2. 4 met er s 8 f eet above f i ni shed gr ade or 2. 4 met er s 8 f eet above f l oor el evat i on f or r aceways on el evat ed pl at f or ms, l oadi ng docks, or st ai r wel l s.

Coor di nat e wi t h t he Aut hor i t y Havi ng Jur i sdi ct i on r esponsi bl e f or t he const r uct i on cont r act r egar di ng t he use of t hi s wi r i ng met hod i n t he pr oj ect .

UL 5A, nonmet al l i c t ot al l y encl osed, snap- cover t ype. [ Pr ovi de mul t i pl e out l et - t ype r aceway wi t h gr oundi ng- t ype r ecept acl e wher e i ndi cat ed.

Pr ovi de r ecept acl es as speci f i ed her ei n, spaced a mi ni mum of one ever y [ 455] [ _____] mm [ 18] [ _____] i nches. ] [ Wi r e al t er nat e r ecept acl es on di f f er ent c i r cui t s. ]

SECTI ON 26 20 00 Page 19

2. 4 BUSWAY

NOTE: Ensur e phase sequence of vol t ages and or i ent at i on ar e i ndi cat ed on t he dr awi ngs f or exi st i ng t r ansf or mer s, swi t chboar ds, swi t chgear , and mot or cont r ol cent er s.

NEMA BU 1. 1, UL 857. Pr ovi de t he f ol l owi ng:

a. Buses: [ copper ] [ or ] [ al umi num] .

b. Busways: r at ed [ _____] vol t s, [ _____] cont i nuous cur r ent amper es, t hr ee- phase, [ t hr ee- ] [ f our - ] wi r e, and i ncl ude i nt egr al or i nt er nal [ 50- per cent ] gr ound bus.

c. Shor t c i r cui t r at i ng: [ [ _____] r oot mean squar e ( r ms) symmet r i cal amper es mi ni mum] [ as i ndi cat ed] .

d. Busway syst ems: sui t abl e f or use i ndoor s. [ Fi xed] [ Spr i ng] suppor t syst em.

e. Encl osur es: [ st eel ] [ al umi num] [ met al l i c ] .

f . Har dwar e: pl at ed or ot her wi se pr ot ect ed t o r esi st cor r osi on.

g. Joi nt s: one- bol t t ype wi t h t hr ough- bol t s, whi ch can be checked f or t i ght ness wi t hout de- ener gi z i ng syst em.

h. Maxi mum hot spot t emper at ur e r i se at any poi nt i n busway at cont i nuous r at ed l oad: do not exceed 55 degr ees C above maxi mum ambi ent t emper at ur e of 40 degr ees C i n any posi t i on.

i . I nt er nal bar r i er s t o pr event movement of super heat ed gases.

j . Coor di nat e pr oper vol t age phasi ng of ent i r e bus duct syst em, f or exampl e wher e busway i nt er f aces wi t h t r ansf or mer s, swi t chgear , swi t chboar ds, mot or cont r ol cent er s, and ot her syst em component s.

2. 4. 1 Feeder Busways

Pr ovi de[ vent i l at ed, except t hat ver t i cal busways wi t hi n 1830 mm 6 f eet of f l oor s must be unvent i l at ed, ] [ unvent i l at ed, t ot al l y encl osed] l ow- i mpedance busway. Pr ovi de bus bar s f ul l y cover ed wi t h i nsul at i ng mat er i al , except at st abs. Pr ovi de an ent i r el y pol ar i zed busway syst em.

2. 4. 2 Pl ug- I n Busways

Unvent i l at ed t ype. Pr ovi de t he f ol l owi ng:

a. Pl ug- i n uni t s: [ f usi bl e, handl e- oper at ed, swi t ch t ype, hor sepower - r at ed] [ c i r cui t br eaker - t ype] [ handl e- oper at ed, swi t ch t ype, equi pped wi t h hi gh i nt er r upt i ng- capaci t y, cur r ent - l i mi t i ng f uses] .

b. Bus bar s: cover ed wi t h i nsul at i ng mat er i al t hr oughout , except at j oi nt s and ot her connect i on poi nt s.

SECTI ON 26 20 00 Page 20

[ c. A hook st i ck of sui t abl e l engt h f or oper at i ng pl ug- i n uni t s f r om t he f l oor .

] 2. 5 CABLE TRAYS

NOTE: I ndi cat e cabl e t r ay l ayout on t he dr awi ngs.

When mul t i pl e t ypes and si zes ar e used, i ndi cat e s i ze and t ype of cabl e t r ays on t he dr awi ngs. When usi ng " as i ndi cat ed" opt i on, ensur e i nf or mat i on r equi r ed i s shown on t he dr awi ngs. Coor di nat e wi t h st r uct ur al engi neer when desi gnat i ng t he Span/ Load Cl ass cat egor y. Thi s desi gnat i on i s f ound i n NEMA VE 2. Pr ovi de desi gnat i on on dr awi ngs and/ or i n t hi s speci f i cat i on.

NEMA VE 2. Pr ovi de t he f ol l owi ng:

[ Submi t cabl e t r ay desi gn, i ncl udi ng di mensi onal l ayout , l oad and sei smi c cal cul at i ons, and f i l l cal cul at i ons. Di mensi onal l ayout i ncl udes cabl e spaci ngs, cabl e t r ay spl i ces, and suppor t s. Fi l l cal cul at i ons i ncl ude an i ndex of cabl es f or each sect i on and i dent i f i cat i on of t he l b/ f t , cr oss sect i onal ar ea, and i nsul at i on vol t age cl ass f or each cabl e.

] a. Cabl e t r ays: f or m a wi r eway syst em, wi t h a nomi nal [ [ 75] [ 100] [ 150] mm [ 3] [ 4] [ 6] i nch] dept h[ as i ndi cat ed] . Cabl e t r ay i s t o have a span/ l oad cl ass desi gnat i on of [ _____] per NEMA VE 2.

b. Cabl e t r ays: const r uct ed of [ al umi num] [ copper - f r ee al umi num] [ st eel t hat has been hot - di pped gal vani zed af t er f abr i cat i on] .

c. Cabl e t r ays: i ncl ude spl i ce and end pl at es, dr opout s, and mi scel l aneous har dwar e.

d. Edges, f i t t i ngs, and har dwar e: f i ni shed f r ee f r om bur r s and shar p edges.

e. Fi t t i ngs: ensur e not l ess t han l oad- car r y i ng abi l i t y of st r ai ght t r ay sect i ons and have manuf act ur er ' s mi ni mum st andar d r adi us.

f . Radi us of bends: [ [ 305] [ 610] [ 915] mm [ 12] [ 24] [ 36] i nches. ] [ as i ndi cat ed. ]

2. 5. 1 Basket - Type Cabl e Tr ays

NOTE: Basket cabl e t r ay i s a f abr i cat ed st r uct ur e consi st i ng of wi r e mesh bot t om and si de r ai l s.

Pr ovi de[ s i ze as i ndi cat ed] [ of nomi nal [ 50, ] [ 100, ] [ 150, ] [ 200, ] [ 300, ] [ 450, ] [ and] [ 600] mm [ 2, ] [ 4, ] [ 6, ] [ 8, ] [ 12, ] [ 18, ] [ and] [ 24] i nch wi dt h and [ 25, ] [ 50, ] [ and] [ 100] mm [ 1, ] [ 2, ] [ and] [ 4] i nch dept h] wi t h maxi mum wi r e mesh spaci ng of 50 by 100 mm 2 by 4 i nch.

2. 5. 2 Tr ough- Type Cabl e Tr ays

SECTI ON 26 20 00 Page 21

NOTE: Tr ough or vent i l at ed cabl e t r ay i s a f abr i cat ed st r uct ur e consi st i ng of i nt egr al or separ at e l ongi t udi nal r ai l s and a bot t om havi ng openi ngs suf f i c i ent f or t he passage of ai r and ut i l i z i ng 75 per cent or l ess of t he pl an ar ea of t he sur f ace t o suppor t cabl es.

Pr ovi de[ s i ze as i ndi cat ed] [ of nomi nal [ 150] [ 305] [ 455] [ 610] [ 760] [ 915] mm [ 6] [ 12] [ 18] [ 24] [ 30] [ 36] i nch wi dt h] . [ Cabl e t r ay must be sui t abl e f or use as an equi pment gr oundi ng conduct or . ]

2. 5. 3 Ladder - Type Cabl e Tr ays

NOTE: Ladder cabl e t r ay i s a f abr i cat ed st r uct ur e consi st i ng of t wo l ongi t udi nal s i de r ai l s connect ed by i ndi v i dual t r ansver se member s ( r ungs) .

Pr ovi de[ s i ze as i ndi cat ed] [ of nomi nal [ 150] [ 305] [ 455] [ 610] [ 760] [ 915] mm [ 6] [ 12] [ 18] [ 24] [ 30] [ 36] i nch wi dt h] wi t h maxi mum r ung spaci ng of [ 150] [ 225] [ 305] [ 455] mm [ 6] [ 9] [ 12] [ 18] i nches. [ Cabl e t r ay must be sui t abl e f or use as an equi pment gr oundi ng conduct or . ]

2. 5. 4 Channel - Type Cabl e Tr ays

NOTE: Channel cabl e t r ay i s a f abr i cat ed st r uct ur e consi st i ng of a one- pi ece vent i l at ed- bot t om or sol i d- bot t om channel sect i on, not exceedi ng 152 mm 6 i nches i n wi dt h.

Pr ovi de[ s i ze as i ndi cat ed] [ of nomi nal [ 75] [ 100] [ 150] mm [ 3] [ 4] [ 6] i nch wi dt h] . Pr ovi de t r ays wi t h one- pi ece const r uct i on havi ng sl ot s spaced not mor e t han 115 mm 4 1/ 2 i nches on cent er s. [ Cabl e t r ay must be sui t abl e f or use as an equi pment gr oundi ng conduct or . ]

2. 5. 5 Sol i d Bot t om- Type Cabl e Tr ays

NOTE: Sol i d bot t om or non- vent i l at ed cabl e t r ay i s a f abr i cat ed st r uct ur e consi st i ng of a bot t om wi t hout vent i l at i on openi ngs wi t hi n i nt egr al or separ at e l ongi t udi nal s i de r ai l s.

Pr ovi de[ s i ze as i ndi cat ed] [ of nomi nal [ 150] [ 305] [ 455] [ 610] [ 760] [ 915] mm [ 6] [ 12] [ 18] [ 24] [ 30] [ 36] i nch wi dt h] . [ Pr ovi de sol i d cover s. ] [ Do not pr ovi de sol i d cover s. ]

[ 2. 5. 6 Cant i l ever

Cant i l ever - t ype, cent er - hung cabl e t r ays may be pr ovi ded at t he Cont r act or ' s opt i on i n l i eu of ot her cabl e t r ay t ypes speci f i ed.

SECTI ON 26 20 00 Page 22

] [ 2. 6 OPEN TELECOMMUNI CATI ONS CABLE SUPPORT

NOTE: Ut i l i ze open t el ecommuni cat i ons cabl e suppor t s ( J- Hooks / J- Suppor t s / D- r i ngs) onl y as speci f i cal l y per mi t t ed i n UFC 3- 580- 01, Tel ecommuni cat i ons, Bui l di ng Cabl i ng Syst em.

2. 6. 1 Open Top Cabl e Suppor t s

Pr ovi de open t op cabl e suppor t s i n accor dance wi t h UL 2043. Pr ovi de[ [ gal vani zed] [ z i nc- coat ed] [ st ai nl ess] st eel ] open t op cabl e suppor t s[ as i ndi cat ed] .

2. 6. 2 Cl osed Ri ng Cabl e Suppor t s

Pr ovi de cl osed r i ng cabl e suppor t s i n accor dance wi t h UL 2043. Pr ovi de[ [ gal vani zed] [ z i nc- coat ed] [ st ai nl ess] st eel ] c l osed r i ng cabl e suppor t s[ as i ndi cat ed] .

] 2. 7 OUTLET BOXES AND COVERS

UL 514A, cadmi um- or z i nc- coat ed, i f f er r ous met al . UL 514C, i f nonmet al l i c .

2. 7. 1 Fl oor Out l et Boxes

Pr ovi de t he f ol l owi ng:

a. Boxes: [ adj ust abl e] [ nonadj ust abl e] and concr et e t i ght .

b. Each out l et : consi st i ng of [ nonmet al l i c ] [ or ] [ cast - met al ] body wi t h t hr eaded openi ngs, [ or sheet - st eel body wi t h knockout s] f or condui t s, [ adj ust abl e] [ , ] [ br ass f l ange] r i ng, and cover pl at e wi t h [ 19] [ 25] [ 31. 75] [ 53. 92] mm [ 3/ 4] [ 1] [ 1 1/ 4] [ 2 1/ 8] i nch t hr eaded pl ug.

c. Tel ecommuni cat i ons out l et s: consi st i ng of [ sur f ace- mount ed, hor i zont al ] [ f l ush] , al umi num or st ai nl ess st eel housi ng wi t h a r ecept acl e as speci f i ed and[ 25 mm one i nch bushed si de openi ng] [ 19 mm 3/ 4 i nch t op openi ng] .

d. Recept acl e out l et s: consi st i ng of [ sur f ace- mount ed, hor i zont al ] [ f l ush] al umi num or st ai nl ess st eel housi ng wi t h dupl ex- t ype r ecept acl e as speci f i ed her ei n.

e. Pr ovi de gasket s wher e necessar y t o ensur e wat er t i ght i nst al l at i on.

[ f . Pr ovi de pl ugs wi t h i nst al l at i on i nst r uct i ons t o t he Cont r act i ng Of f i cer f or [ 5] [ _____] per cent of out l et boxes f or t he cappi ng of out l et s upon r emoval of ser vi ce f i t t i ngs.

] 2. 7. 2 Out l et Boxes f or Tel ecommuni cat i ons Syst em

NOTE: When usi ng " as i ndi cat ed" opt i on, ensur e i nf or mat i on r equi r ed i s shown on t he dr awi ngs.

Choose 100 mm 4 i nch squar e boxes f or s i ngl e gang, f our out l et , copper t el ecommuni cat i ons

SECTI ON 26 20 00 Page 23 conf i gur at i ons t hat do not have pr ovi s i on f or f i ber opt i c cabl i ng. Choose 120 mm 4 11/ 16 i nch squar e boxes f or 35 mm 1 1/ 4 i nch condui t i nst al l at i ons and f or out l et boxes t hat have or may r equi r e f i ber opt i c cabl i ng. Lar ger boxes ar e r equi r ed t o meet bend r adi i r equi r ement s f or f i ber opt i c cabl e.

Pr ovi de t he f ol l owi ng:

a. St andar d t ype[ 100 mm squar e by 54 mm deep] [ 120 mm squar e by 54 mm deep] [ 130 mm squar e by 73 mm deep] [ 4 i nches squar e by 2 1/ 8 i nches deep] [ 4 11/ 16 i nches squar e by 2 1/ 8 i nches deep] [ 5 i nches squar e by 2 7/ 8 i nches deep] .

[ b. Out l et boxes f or wal l - mount ed t el ecommuni cat i ons out l et s: 100 by 54 by 54 mm 4 by 2 1/ 8 by 2 1/ 8 i nches deep.

] c. Dept h of boxes: l ar ge enough t o al l ow manuf act ur er s ' r ecommended conduct or bend r adi i .

[ d. Out l et boxes f or f i ber opt i c t el ecommuni cat i on out l et s: i ncl ude a mi ni mum 10 mm 3/ 8 i nch deep si ngl e or t wo gang pl ast er r i ng as shown and i nst al l ed usi ng a mi ni mum 27 mm one i nch condui t syst em.

] [ e. Out l et boxes f or handi capped t el ecommuni cat i ons st at i on: [ 100 by 54 by 54 mm] [ 130 mm squar e by 73 mm deep] [ 4 by 2 1/ 8 by 2 1/ 8 i nches] [ 5 i nches squar e by 2 7/ 8 i nches deep] deep.

] [ 2. 7. 3 Cl ock Out l et f or Use i n Ot her Than Wi r ed Cl ock Syst em

NOTE: Bat t er y- oper at ed cl ocks ar e Navy st andar d.

Ret ai n t hi s par agr aph onl y under speci al condi t i ons.

Pr ovi de t he f ol l owi ng:

a. Out l et box wi t h pl ast i c cover , wher e r equi r ed, and si ngl e r ecept acl e wi t h c l ock out l et pl at e.

b. Recept acl e: r ecessed suf f i c i ent l y wi t hi n box t o al l ow compl et e i nser t i on of st andar d cap, f l ush wi t h pl at e.

c. Sui t abl e c l i p or suppor t f or hangi ng cl ock: secur ed t o t op pl at e.

d. Mat er i al and f i ni sh of pl at e: as speci f i ed i n par agr aph DEVI CE PLATES of t hi s sect i on.

] 2. 8 CABI NETS, JUNCTI ON BOXES, AND PULL BOXES

UL 50; vol ume gr eat er t han 1640 mL 100 cubi c i nches, NEMA Type 1 encl osur e; sheet st eel , hot - di p, z i nc- coat ed. Wher e exposed t o wet , damp, or cor r osi ve envi r onment s, NEMA Type [ 3R] [ 4X] [ _____] [ as i ndi cat ed] .

2. 9 WI RES AND CABLES

Pr ovi de wi r es and cabl es i n accor dance appl i cabl e r equi r ement s of NFPA 70 and UL f or t ype of i nsul at i on, j acket , and conduct or speci f i ed or

SECTI ON 26 20 00 Page 24 i ndi cat ed.