UFGS_26_05_71.00_40_LV_Overcurrent_Protective_Devices.pdf

USACE / NAVFAC / AFCEC / NASA UFGS- 26 05 71. 00 40 ( Febr uar y 2017) Pr epar i ng Act i v i t y: NASA Super sedi ng UFGS- 26 05 71. 00 40 ( Febr uar y 2014)

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 05 71. 00 40

LOW VOLTAGE OVERCURRENT PROTECTI VE DEVI CES

02/17

PART 1 GENERAL

1. 1 REFERENCES

1. 2 SUBMI TTALS

PART 2 PRODUCTS

2. 1 SYSTEM DESCRI PTI ON

2. 2 EQUI PMENT

2. 2. 1 Mot or Cont r ol l er s

2. 2. 1. 1 Manual Mot or Cont r ol l er s

2. 2. 1. 2 Magnet i c Mot or Cont r ol l er s

2. 2. 1. 3 Combi nat i on Mot or Cont r ol l er s

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

2. 2. 2. 1 Mol ded- Case Ci r cui t Br eaker s

2. 2. 2. 2 Encl osed Mol ded- Case Ci r cui t Br eaker s

2. 2. 3 Fuses

2. 2. 4 Cont r ol Devi ces

2. 2. 4. 1 Magnet i c Cont act or s

2. 2. 4. 2 Cont r ol - Ci r cui t Tr ansf or mer s

2. 2. 4. 3 Magnet i c Cont r ol Rel ays

2. 2. 4. 4 Pushbut t ons and Swi t ches

2. 2. 5 Fi ni sh

2. 3 COMPONENTS

2. 3. 1 I nst r ument Tr ansf or mer s

2. 3. 1. 1 Cur r ent Tr ansf or mer s

2. 3. 1. 2 Pot ent i al Tr ansf or mer s

2. 3. 2 Encl osur es

2. 3. 2. 1 Equi pment Encl osur es

2. 3. 2. 2 Remot e- Cont r ol St at i on Encl osur es

2. 3. 3 Ti me Swi t ches

2. 3. 4 Pr ot ect i ve Rel ays

2. 3. 4. 1 Over cur r ent Rel ays

2. 3. 4. 2 Di r ect i onal Over cur r ent Rel ays

2. 3. 4. 3 Recl osi ng Rel ays

2. 3. 4. 4 Under vol t age Rel ays

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2. 3. 5 I ndi cat i ng I nst r ument s

2. 3. 5. 1 Ammet er s

2. 3. 5. 2 Vol t met er s

2. 3. 5. 3 Wat t - Hour Met er s/ Wat t met er s

2. 3. 5. 4 Gr aphi c Demand Met er s

2. 3. 5. 5 Speci al t y- Type Met er s

2. 3. 6 I ndi cat i ng Li ght s

2. 3. 6. 1 Gener al - Pur pose Type

2. 3. 6. 2 Swi t chboar d I ndi cat i ng Li ght s

2. 4 TESTS, I NSPECTI ONS, AND VERI FI CATI ONS

2. 4. 1 Fact or y Test i ng

PART 3 EXECUTI ON

3. 1 I NSTALLATI ON

3. 2 FI ELD QUALI TY CONTROL

3. 2. 1 Test s

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

SECTI ON 26 05 71. 00 40 Page 2

USACE / NAVFAC / AFCEC / NASA UFGS- 26 05 71. 00 40 ( Febr uar y 2017) Pr epar i ng Act i v i t y: NASA Super sedi ng UFGS- 26 05 71. 00 40 ( Febr uar y 2014)

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 05 71. 00 40

LOW VOLTAGE OVERCURRENT PROTECTI VE DEVI CES

02/17

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or c i r cui t br eaker s, f uses, mot or cont r ol s, and cont r ol devi ces. Thi s sect i on suppor t s Sect i on 26 05 00. 00 40 COMMON WORK RESULTS FOR ELECTRI CAL, Sect i on 26 24 16. 00 40 PANELBOARDS, Sect i on 26 24 19. 00 40 MOTOR CONTROL CENTERS.

Accor di ngl y, i nc l ude i t t o t he ext ent appl i cabl e t o pr oj ect r equi r ement s. Show f r ame and t r i p r at i ngs, i nt er r upt i ng r at i ngs, and NEMA t ypes and si zes, as wel l as s i ngl e- l i ne and schemat i c di agr ams, el evat i ons, and det ai l s on dr awi ngs.

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 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) .

PART 1 GENERAL

NOTE: I f Sect i on 26 00 00. 00 20 BASI C ELECTRI CAL MATERI ALS AND METHODS i s not i ncl uded i n t he pr oj ect speci f i cat i on, i nser t appl i cabl e r equi r ement s and del et e t he f ol l owi ng par agr aph.

Sect i on 26 00 00. 00 20 BASI C ELECTRI CAL MATERI ALS AND METHODS appl i es t o wor k speci f i ed i n t hi s sect i on.

SECTI ON 26 05 71. 00 40 Page 3

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 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 ar e aut omat i cal l y 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 ( 2008) 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 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 A48/ A48M ( 2003; R 2012) St andar d Speci f i cat i on f or Gr ay I r on Cast i ngs

ASTM D877/ D877M ( 2013) St andar d Test Met hod f or Di el ect r i c Br eakdown Vol t age of I nsul at i ng Li qui ds Usi ng Di sk El ect r odes

ELECTRONI C I NDUSTRI ES ALLI ANCE ( EI A)

EI A 443 ( 1979) NARM St andar d f or Sol i d St at e Rel ays Ser vi ce

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

I EEE C37. 17 ( 2012) St andar d f or Tr i p Devi ces f or AC and Gener al - Pur pose DC Low- Vol t age Power Ci r cui t Br eaker s

I EEE C37. 90 ( 2005; R 2011) St andar d f or Rel ays and

SECTI ON 26 05 71. 00 40 Page 4

Rel ay Syst ems Associ at ed Wi t h El ect r i c Power Appar at us

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

I EEE C63. 2 ( 2009) St andar d f or El ect r omagnet i c Noi se and Fi el d St r engt h I nst r ument at i on, 10 Hz t o 40 GHz - Speci f i cat i ons

I EEE C63. 4 ( 2014) Amer i can Nat i onal St andar d f or Met hods of Measur ement of Radi o- Noi se Emi ssi ons f r om Low- Vol t age El ect r i cal and El ect r oni c Equi pment i n t he Range of 9 kHz t o 40 GHz

I PC - ASSOCI ATI ON CONNECTI NG ELECTRONI CS I NDUSTRI ES ( I PC)

I PC D330 ( 1992) Desi gn Gui de Manual

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

ANSI C78. 23 ( 1995; R 2003) Amer i can Nat i onal St andar d f or I ncandescent Lamps - Mi scel l aneous Types

NEMA 250 ( 2014) Encl osur es f or El ect r i cal Equi pment ( 1000 Vol t s Maxi mum)

NEMA AB 3 ( 2013) Mol ded Case Ci r cui t Br eaker s and Thei r Appl i cat i on

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

NEMA I CS 1 ( 2000; R 2015) 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 2005; Er r at a 2008) 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 6 ( 1993; R 2016) I ndust r i al Cont r ol and Syst ems: Encl osur es

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 20 ( 2010; Repr i nt Feb 2012) Gener al - Use Snap Switches

UL 489 ( 2016) 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

SECTI ON 26 05 71. 00 40 Page 5

Ci r cui t - Br eaker Encl osur 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 508 ( 1999; Repr i nt Oct 2013) I ndust r i al Cont r ol Equi pment

1. 2 SUBMITTALS

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 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 desi gnat 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 submi t t al s r equi r i ng Gover nment appr oval on Ar my pr oj ect s, use 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 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 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" Cl assi f i cat i on onl y i n SD- 11 Cl oseout Submi t t al s. An " 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 Sect i on 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 Qual i t y Cont r ol 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 r evi ews 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 LI 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:

SECTI ON 26 05 71. 00 40 Page 6

SD- 02 Shop Dr awi ngs

Connect i on Di agr ams; G[ , [ ____] ]

Fabr i cat i on Dr awi ngs; G[ , [ ____] ]

Cont r ol Devi ces; G[ , [ ____] ]

Pr ot ect i ve Devi ces; G[ , [ ____] ]

SD- 03 Pr oduct Dat a

Fuses; G[ , [ ____] ]

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

I nst r ument Tr ansf or mer s; G[ , [ ____] ]

Encl osur es; G[ , [ ____] ]

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

Cont r ol Devi ces; G[ , [ ____] ]

Ti me Swi t ches; G[ , [ ____] ]

Pr ot ect i ve Rel ays; G[ , [ ____] ]

I ndi cat i ng I nst r ument s; G[ , [ ____] ]

I ndi cat i ng Li ght s; G[ , [ ____] ]

SD- 06 Test Repor t s

Di el ect r i c Test s; G[ , [ ____] ]

Fi nal Test Repor t s; G[ , [ ____] ]

SD- 07 Cer t i f i cat es

I nsul at i ng Oi l ; G[ , [ ____] ]

SD- 08 Manuf act ur er ' s I nst r uct i ons

Cont r ol Devi ces; G[ , [ ____] ]

Pr ot ect i ve Devi ces; G[ , [ ____] ]

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

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

Magnet i c Mot or Cont r ol l er s; G[ , [ ____] ]

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

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

SECTI ON 26 05 71. 00 40 Page 7

Ti me Swi t ches; G[ , [ ____] ]

Pr ot ect i ve Rel ays; G[ , [ ____] ]

I ndi cat i ng I nst r ument s; G[ , [ ____] ]

PART 2 PRODUCTS

2. 1 SYSTEM DESCRI PTI ON

Submi t connect i on di agr ams showi ng t he r el at i ons and connect i ons of cont r ol devi ces and pr ot ect i ve devi ces by showi ng t he gener al physi cal l ayout of al l cont r ol s, t he i nt er connect i on of one syst em ( or por t i on of syst em) wi t h anot her , and i nt er nal t ubi ng, wi r i ng, and ot her devi ces.

Submi t f abr i cat i on dr awi ngs f or cont r ol devi ces and pr ot ect i ve devi ces consi st i ng of f abr i cat i on and assembl y det ai l s per f or med i n t he f act or y.

2. 2 EQUIPMENT

2. 2. 1 Mot or Cont r ol l er s

Conf or m t o NEMA I CS 1, NEMA I CS 2, and UL 508 f or mot or cont r ol l er s.

Ensur e cont r ol l er s have t her mal over l oad pr ot ect i on i n each phase.

2. 2. 1. 1 Manual Mot or Cont r ol l er s

Pr ovi de f ul l - vol t age, manual l y oper at ed manual mot or cont r ol l er s f or t he cont r ol and pr ot ect i on of s i ngl e- phase 60- Hz ac smal l wat t age r at i ng f r act i onal - hor sepower squi r r el - cage i nduct i on mot or s.

Pr ovi de s i ngl e- t hr ow, s i ngl e- or doubl e- pol e, t hr ee- posi t i on cont r ol l er s r at ed at not mor e t han 750 wat t r at ed 1 hor sepower at 115 V and 230 V si ngl e- phase. I ncl ude a suppor t i ng base or body of el ect r i cal i nsul at i ng mat er i al wi t h encl osed swi t chi ng mechani sm, yoke, t her mal - over l oad r el ay, and t er mi nal connect or s. Pr ovi de cont r ol l er s t hat c l ear l y i ndi cat e oper at i ng condi t i on: on, of f , or t r i pped.

Pr ovi de t oggl e- or key- oper at ed- t ype manual mot or cont r ol l er s as i ndi cat ed and ar r ange t hem so t hat t hey ar e l ockabl e wi t h a padl ock i n t he " OFF" position.

Pr ovi de r ecessed manual mot or cont r ol l er s f or s i ngl e- speed, smal l wat t age r at i ng f r act i onal - hor sepower , squi r r el - cage i nduct i on mot or s. I ncl ude a s i ngl e cont r ol l er and i ndi cat i ng l i ght i n a 100 mi l l i met er 4- i nch- squar e wal l out l et box; f or f l ush- wi r i ng devi ces, i ncl ude mat chi ng cor r osi on- r esi st ant st eel f l ush cover pl at es. Pr ovi de sur f ace- mount ed manual mot or cont r ol l er s f or s i ngl e- speed, smal l wat t age r at i ng f r act i onal - hor sepower squi r r el - cage i nduct i on mot or s t hat i ncl ude a s i ngl e cont r ol l er and i ndi cat i ng l i ght i n a NEMA 250, Type [ 1] [ _____] , gener al - pur pose encl osur e.

Pr ovi de r ecessed and sur f ace- mount ed manual mot or cont r ol l er s f or t wo- speed, smal l wat t age r at i ng f r act i onal - hor sepower , squi r r el - cage i nduct i on mot or s;

i ncl ude t wo cont r ol l er s, t wo i ndi cat i ng l i ght s, and a sel ect or swi t ch i n a mul t i pl e- gang wal l out l et box f or f l ush- wi r i ng devi ces, wi t h mat chi ng cor r osi on- r esi st ant st eel f l ush cover pl at es. Pr ovi de sur f ace- mount ed manual mot or cont r ol l er s f or t wo- speed smal l wat t age r at i ng, f r act i onal - hor sepower , squi r r el - cage i nduct i on mot or s; i ncl ude t wo

SECTI ON 26 05 71. 00 40 Page 8 cont r ol l er s, t wo i ndi cat i ng l i ght s, and a sel ect or swi t ch i n a NEMA 250, Type [ 1] [ _____] , gener al - pur pose encl osur e.

2. 2. 1. 2 Magnet i c Mot or Cont r ol l er s

a. Ful l - Vol t age Cont r ol l er s

Pr ovi de f ul l - vol t age, f ul l - magnet i c devi ces f or t he cont r ol and pr ot ect i on of s i ngl e- and t hr ee- phase, 60 Hz, squi r r el - cage i nduct i on mot or s i n accor dance wi t h NEMA I CS 1, NEMA I CS 2, and UL 508 f or magnet i c mot or controllers.

Ensur e t hat t he oper at i ng coi l assembl y oper at es sat i sf act or i l y bet ween 85 per cent and 110 per cent of r at ed coi l vol t age. Pr ovi de 120 V, 60 Hz mot or cont r ol c i r cui t s .

Pr ovi de t he cont r ol l er s wi t h t wo nor mal l y open and t wo nor mal l y c l osed auxi l i ar y cont act s r at ed accor di ng t o NEMA I CS 1 and NEMA I CS 2, i n addi t i on t o t he seal i ng- i n cont act f or t he cont r ol c i r cui t s.

Pr ovi de sol der l ess pr essur e wi r e t er mi nal connect or s f or l i ne and l oad connect i ons t o t he cont r ol l er s.

I ncl ude t hr ee manual - r eset t her mal - over l oad devi ces f or over cur r ent pr ot ect i on, one i n each pol e of t he cont r ol l er . Pr ovi de t her mal - over l oad r el ays of t he [ mel t i ng- al l oy] [ bi met al l i c nonadj ust abl e] t ype wi t h cont i nuous- cur r ent r at i ngs and ser vi ce- l i mi t cur r ent r at i ngs. Ensur e t hat r at i ngs have a pl us or mi nus 15 per cent adj ust ment t o compensat e f or ambi ent oper at i ng condi t i ons.

Pr ovi de an ext er nal l y oper abl e manual - r eset but t on t o r eest abl i sh cont r ol power t o t he hol di ng coi l of t he el ect r omagnet . Af t er t he cont r ol l er has t r i pped f r om over l oad, ensur e t hat r eset t i ng t he mot or - over l oad devi ce does not r est ar t t he mot or .

Pr ovi de an encl osur e i n accor dance wi t h NEMA 250, Type [ _____] .

b. Reduced- Vol t age St ar t er s

Conf or m t o t he r equi r ement s f or f ul l - vol t age cont r ol l er s f or r educed- vol t age st ar t er s, except f or vol t age, and t o t he f ol l owi ng addi t i onal r equi r ement s:

( 1) Ful l y pr ot ect t he mot or dur i ng al l phases of mot or st ar t i ng wi t h an over l oad devi ce i n each mot or l eg. Rat e t he st ar t er cont act s t o wi t hst and t he swi t chi ng sur ges dur i ng sel ect or t o f ul l vol t age. Pr ovi de a st ar t er t hat cont ai ns t he sensi ng and t i mi ng devi ces necessar y t o moni t or mot or oper at i on and sel ect t he cor r ect t i me f or sel ect or t o f ul l vol t age.

( 2) Ensur e adequat e vent i l at i on of r esi st or s and aut ot r ansf or mer s used f or st ar t i ng. Vent i l at e sol i d- st at e st ar t er s f or st ar t i ng cycl es as wel l as any f ol l ow- on r est ar t - r un cycl es. Oper at e ext er nal cont r ol c i r cui t s or sol i d- st at e st ar t er s at a maxi mum of 120 V ac.

( 3) For sol i d- st at e st ar t er s, pr ovi de adj ust abl e st ar t i ng t or que f r om 0 per cent t o 50 per cent of appl i ed vol t age, mi ni mum. Pr ovi de aut ot r ansf or mer st ar t er s wi t h a mi ni mum of t hr ee t aps above 50 per cent r educed vol t age.

SECTI ON 26 05 71. 00 40 Page 9

2. 2. 1. 3 Combi nat i on Mot or Cont r ol l er s

The f ol l owi ng r equi r ement s ar e i n addi t i on t o t he r equi r ement s speci f i ed f or magnet i c mot or cont r ol l er :

a. Pr ovi de combi nat i on mot or cont r ol l er s f or t he cont r ol and pr ot ect i on of s i ngl e- and t hr ee- phase, 60 Hz ac squi r r el - cage i nduct i on mot or s wi t h br anch- ci r cui t di sconnect i ng and pr ot ect i ve devi ces i n accor dance wi t h NEMA I CS 1, NEMA I CS 2, and NEMA I CS 6.

b. For combi nat i on mot or cont r ol l er s, i ncl ude magnet i c mot or cont r ol l er s and mol ded- case ci r cui t br eaker s or mot or c i r cui t pr ot ect or s ( MCPs) i n met al encl osur es i n accor dance wi t h NEMA 250 or mot or cont r ol cent er dr aw- out assembl i es wi t h cont r ol - power t r ansf or mer s, sel ect or swi t ches, pushbut t ons, and i ndi cat i ng l i ght s as f ol l ows:

( 1) Pr ovi de f ul l - vol t age, f ul l - magnet i c devi ces as speci f i ed i n t hi s sect i on under par agr aph REMOTE- CONTROL STATI ON ENCLOSURES f or magnet i c mot or cont r ol l er s and encl osur es.

( 2) Pr ovi de t her mal - magnet i c br eaker s as speci f i ed i n par agr aph MANUAL MOTOR CONTROLLERS f or mol ded- case ci r cui t br eaker s.

Manuf act ur er ' s st andar d MCPs may be used i n l i eu of mol ded- case ci r cui t br eaker s.

( 3) Pr ovi de cont r ol - power t r ansf or mer s 120 V ac maxi mum, sel ect or swi t ches, pushbut t ons, and pi l ot l i ght s as r equi r ed.

( 4) I dent i f y combi nat i on mot or cont r ol l er s wi t h i dent i f i cat i on pl at es af f i xed t o t he f r ont cover of t he cont r ol l er .

a. Nonr ever si ng Combi nat i on Mot or Cont r ol l er s

NOTE: Nonr ever s i ng, r ever si ng, and t wo- speed combi nat i on mot or cont r ol l er s shoul d be sel ect ed f r om t he f ol l owi ng par agr aphs t o sui t t he pr oj ect requirements.

The f ol l owi ng r equi r ement s ar e i n addi t i on t o t he r equi r ement s f or magnet i c mot or cont r ol l er s:

( 1) For t he cont r ol and pr ot ect i on of s i ngl e- speed squi r r el - cage i nduct i on mot or s, i ncl ude a magnet i c cont r ol l er wi t h mol ded- case ci r cui t br eaker or MCPs wi t h sel ect or swi t ch or st ar t / st op pushbut t on and i ndi cat i ng l i ght i n t he cover of t he encl osur e.

( 2) Pr ovi de r at i ng of [ s i ngl e] [ and] [ t hr ee] - phase, s i ngl e- speed, f ul l - vol t age magnet i c cont r ol l er s f or nonpl uggi ng and nonj oggi ng dut y i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

( 3) Pr ovi de wi r i ng and connect i ons f or f ul l - vol t age, s i ngl e- speed magnet i c cont r ol l er s i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

b. Rever si ng Combi nat i on Mot or Cont r ol l er s

The f ol l owi ng r equi r ement s ar e i n addi t i on t o t he r equi r ement s f or magnet i c

SECTI ON 26 05 71. 00 40 Page 10 mot or cont r ol l er s:

( 1) For t he cont r ol and pr ot ect i on of s i ngl e- speed squi r r el - cage i nduct i on mot or s, i ncl ude t wo i nt er l ocked magnet i c cont r ol l er s wi t h mol ded- case ci r cui t br eaker or MCPs, wi t h sel ect or swi t ch or f or war d/ r ever se/ st op pushbut t on and t wo i ndi cat i ng l i ght s i n t he cover of t he encl osur e. Pr ovi de i ndi cat i ng l i ght s t o i dent i f y t he f or war d and r ever se r unni ng connect i on of t he mot or cont r ol l er .

( 2) Pr ovi de r at i ng of [ s i ngl e] [ and] [ t hr ee] - phase, s i ngl e- speed, f ul l - vol t age magnet i c cont r ol l er s f or pl ug- st op, pl ug- r ever se, or j oggi ng dut y i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

( 3) Pr ovi de wi r i ng and connect i ons f or f ul l - vol t age, s i ngl e- speed magnet i c cont r ol l er s i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

c. Two- Speed Combi nat i on Mot or Cont r ol l er s

The f ol l owi ng r equi r ement s ar e i n addi t i on t o t he r equi r ement s f or magnet i c mot or cont r ol l er s:

( 1) For t he cont r ol and pr ot ect i on of s i ngl e- and t wo- wi ndi ng, t wo- speed, t hr ee- phase, squi r r el - cage i nduct i on mot or s, i ncl ude t wo magnet i c cont r ol l er s wi t h mol ded- case ci r cui t br eaker or MCPs, wi t h sel ect or swi t ch or f ast / s l ow/ st op pushbut t on and t wo i ndi cat i ng l i ght s i n t he cover of t he encl osur e. Pr ovi de i ndi cat i ng l i ght s t o i dent i f y t he hi gh- and l ow- speed r unni ng connect i on of t he mot or cont r ol l er .

( 2) Pr ovi de r at i ng of t hr ee- phase, t wo- speed, f ul l - vol t age magnet i c cont r ol l er s f or nonpl uggi ng and nonj oggi ng dut y f or const ant - and var i abl e- t or que mot or s i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

( 3) Pr ovi de r at i ng of t hr ee- phase, t wo- speed, f ul l - vol t age magnet i c cont r ol l er s f or nonpl uggi ng and nonj oggi ng dut y f or const ant -mot or s hor sepower mot or s i n accor dance wi t h NEMA I CS 1 and

NEMA I CS 2.

( 4) Pr ovi de r at i ng of t hr ee- phase, t wo- speed, f ul l - vol t age magnet i c cont r ol l er s f or pl ug- st op, pl ug- r ever se, or j oggi ng dut y f or const ant - t or que, var i abl e- t or que, and const ant wat t age- hor sepower mot or s i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

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

Pr ovi de c i r cui t br eaker s t hat conf or m t o UL 489 and NEMA AB 3.

2. 2. 2. 1 Mol ded- Case Ci r cui t Br eaker s

Pr ovi de mol ded- case, manual l y oper at ed, t r i p- f r ee c i r cui t br eaker s, wi t h i nver se- t i me t her mal - over l oad pr ot ect i on and i nst ant aneous magnet i c shor t - c i r cui t pr ot ect i on as r equi r ed. Compl et el y encl ose c i r cui t br eaker s i n a mol ded case, wi t h a f act or y- seal ed, cal i br at ed sensi ng el ement t o pr event t amper i ng.

Locat e t her mal - magnet i c t r i ppi ng el ement s i n each pol e of t he c i r cui t br eaker , and pr ovi de i nver se- t i me- del ay t her mal - over l oad pr ot ect i on and i nst ant aneous magnet i c shor t - c i r cui t pr ot ect i on. Pr ovi de an i nst ant aneous magnet i c t r i ppi ng el ement t hat i s adj ust abl e and accessi bl e f r om t he f r ont

SECTI ON 26 05 71. 00 40 Page 11 of t he br eaker on f r ame si zes l ar ger t han 100 A.

Si ze t he br eaker as r equi r ed f or t he cont i nuous- cur r ent r at i ng of t he c i r cui t . Pr ovi de t he br eaker c l ass as r equi r ed.

Pr ovi de suf f i c i ent i nt er r upt i ng capaci t y of t he panel and l i ght i ng br anch ci r cui t br eaker s t o successf ul l y i nt er r upt t he maxi mum shor t - c i r cui t cur r ent i mposed on t he c i r cui t at t he br eaker t er mi nal s. Pr ovi de c i r cui t br eaker i nt er r upt i ng capaci t i es wi t h a mi ni mum of 10, 000 A and t hat conf or m to NEMA AB 3.

Pr ovi de t he common- t r i p- t ype mul t i pol e c i r cui t br eaker s havi ng a s i ngl e oper at i ng handl e and a t wo- posi t i on on/ of f i ndi cat i on. Pr ovi de c i r cui t br eaker s wi t h t emper at ur e compensat i on f or oper at i on i n an ambi ent t emper at ur e of 40 degr ees C 104 degr ees F. Pr ovi de c i r cui t br eaker s t hat have r oot mean squar e ( r ms) symmet r i cal i nt er r upt i ng r at i ngs suf f i c i ent t o pr ot ect t he c i r cui t bei ng suppl i ed. I nt er r upt i ng r at i ngs may have sel ect i ve- t ype t r i ppi ng ( t i me del ay, magnet i c, t her mal , or gr ound f aul t ) .

Pr ovi de a phenol i c- composi t i on br eaker body capabl e of havi ng such accessor i es as handl e- ext ensi on, handl e- l ocki ng, and padl ocki ng devi ces at t ached wher e r equi r ed.

For met er c i r cui t di sconnect s, pr ovi de c i r cui t br eaker s of t he mot or - c i r cui t - pr ot ect or t ype t hat meet t he appl i cabl e r equi r ement s of

NFPA 70.

For ser vi ce di sconnect i on, pr ovi de encl osed ci r cui t - br eaker s wi t h ext er nal handl es f or manual oper at i on. Pr ovi de sheet - met al encl osur es wi t h hi nged cover s sui t abl e f or sur f ace mount i ng.

2. 2. 2. 2 Encl osed Mol ded- Case Ci r cui t Br eaker s

For encl osed ci r cui t br eaker s, pr ovi de t her mal - magnet i c, mol ded- case ci r cui t br eaker s i n sur f ace- mount ed, nonvent i l at ed encl osur es conf or mi ng t o NEMA 250 and UL 489.

Pr ovi de encl osed ci r cui t br eaker s i n nonhazar dous l ocat i ons as f ol l ows:

[ a. Cont ai n c i r cui t br eaker s i nst al l ed i nsi de c l ean, dr y l ocat i ons i n NEMA Type 1, gener al pur pose, sheet - st eel encl osur es.

][ b. Cont ai n c i r cui t br eaker s i nst al l ed i n unpr ot ect ed out door l ocat i ons, i n NEMA Type 3R, weat her - r esi st ant sheet - st eel encl osur es t hat ar e spl ashpr oof , weat her pr oof , s l eet pr oof , and moi st ur e- r esi st ant .

][ c. Cont ai n c i r cui t br eaker s i nst al l ed i n wet l ocat i ons, i n NEMA Type 4, wat er t i ght cor r osi on- r esi st ant , sheet - st eel encl osur es const r uct ed t o pr event ent r ance of wat er .

][ d. Cont ai n c i r cui t br eaker s i nst al l ed i n wet l ocat i ons i n NEMA Type 4, wat er t i ght , cast - i r on encl osur es, const r uct ed t o pr event ent r ance of wat er when t est ed i n accor dance wi t h NEMA I CS 1 f or Type 4 encl osur es.

][ e. Cont ai n c i r cui t br eaker s i nst al l ed i n dr y, noncombust i bl e, dust - l aden at mospher es i n NEMA Type 5, dust t i ght , cor r osi on- r esi st ant sheet st eel encl osur es, wi t h gasket s or t hei r equi val ent t o pr event t he ent r ance of dust.

SECTI ON 26 05 71. 00 40 Page 12

][ f . Cont ai n c i r cui t br eaker s i nst al l ed i n dr y, noncombust i bl e, dust - l aden at mospher es i n NEMA Type 5, dust t i ght , cast - i r on encl osur es, wi t h gasket s or t hei r equi val ent t o pr event t he ent r ance of dust .

][ g. Cont ai n c i r cui t br eaker s i nst al l ed i n i ndust r i al l ocat i ons i n NEMA Type 12, i ndust r i al - use, sheet - st eel encl osur es, const r uct ed t o pr event t he ent r ance of dust , l i nt , f i ber s, and f l y i ngs and t he seepage of oi l and coolant.

][ h. Fabr i cat e st eel encl osur es f r om cor r osi on- r esi st ant sheet - st eel , conf or mi ng t o ASTM A240/ A240M, 300- ser i es, cor r osi on- r esi st ant st eel .

Ensur e t hat t he box di mensi ons and t hi ckness of t he sheet st eel conf or m to UL 50.

][ i . Pr ovi de cast - i r on encl osur es of gr ay- i r on cast i ngs conf or mi ng t o ASTM A48/ A48M wi t h t ensi l e- st r engt h c l assi f i cat i on sui t abl e f or t hi s appl i cat i on. Pr ovi de cast - met al encl osur es t hat ar e not l ess t han 3 mi l l i met er 1/ 8 i nch t hi ck at ever y poi nt , of gr eat er t hi ckness at r ei nf or c i ng r i bs and door edges, and not l ess t han 6 mi l l i met er 1/ 4 i nch t hi ck at t apped hol es f or condui t s.

] 2. 2. 3 Fuses

Pr ovi de a compl et e set of f uses f or al l swi t ches and swi t chgear . Ensur e t hat f uses have a vol t age r at i ng of not l ess t han t he c i r cui t vol t age.

Make no change i n cont i nuous- cur r ent r at i ng, i nt er r upt i ng r at i ng, or c l ear i ng or mel t i ng t i me of f uses unl ess wr i t t en per mi ssi on i s f i r s t obt ai ned f r om t he Cont r act i ng Of f i cer .

Pr ovi de nonr enewabl e- car t r i dge- t ype f uses f or r at i ngs 30 A, 125 V or l ess.

Pr ovi de r enewabl e- car t r i dge- t ype f uses f or r at i ngs above 30 A 600 V or l ess wi t h t i me- del ay dual el ement s, except wher e ot her wi se i ndi cat ed. Ensur e t hat f uses conf or m t o NEMA FU 1.

I nst al l speci al f uses such as ext r a- hi gh i nt er r upt i ng- capaci t y f uses, f uses f or wel di ng machi nes, and capaci t or f uses wher e r equi r ed. Do not use pl ug fuses.

Label f uses showi ng UL cl ass, i nt er r upt i ng r at i ng, and t i me- del ay char act er i st i cs, when appl i cabl e.

Pr ovi de por cel ai n f use hol der s when f i el d- mount ed i n a cabi net or box. Do not use f use hol der s made of such mat er i al s as ebony asbest os, Bakel i t e, or pr essed f i ber f or f i el d i nst al l at i on.

2. 2. 4 Cont r ol Devi ces

2. 2. 4. 1 Magnet i c Cont act or s

Pr ovi de magnet i c cont act or s i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2 as r equi r ed f or t he cont r ol of l ow- vol t age, 60- Hz, t ungst en- l amp l oads, f l uor escent - l amp l oads, r esi st ance- heat i ng l oads, and t he pr i mar y wi ndi ngs of l ow- vol t age t r ansf or mer s.

Pr ovi de cor e- and- coi l assembl y t hat oper at es sat i s f act or i l y wi t h coi l vol t age bet ween 85 per cent and 110 per cent of i t s vol t age r at i ng.

Pr ovi de cont act or s t hat ar e desi gned wi t h a nor mal l y open hol di ng- c i r cui t

SECTI ON 26 05 71. 00 40 Page 13 auxi l i ar y cont act f or cont r ol c i r cui t s, wi t h a r at i ng i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

Fur ni sh sol der l ess pr essur e wi r e t er mi nal connect or s, or make avai l abl e f or l i ne and l oad connect i ons t o cont act or s i n accor dance wi t h NEMA I CS 1 and

NEMA I CS 2.

Pr ovi de magnet i c cont act or s wi t h a r at i ng i n accor dance wi t h NEMA I CS 1 and

NEMA I CS 2.

2. 2. 4. 2 Cont r ol - Ci r cui t Tr ansf or mer s

Pr ovi de cont r ol - c i r cui t t r ansf or mer s wi t hi n t he encl osur e of magnet i c cont act or s and mot or cont r ol l er s when t he l i ne vol t age exceeds 120 V.

Pr ovi de an encapsul at ed dr y- t ype, s i ngl e- phase, 60- Hz t r ansf or mer , wi t h a 120 V ( or 24 V) i sol at ed secondar y wi ndi ng.

Do not pr ovi de a t r ansf or mer wi t h a r at ed pr i mar y vol t age l ess t han t he r at ed vol t age of t he cont r ol l er , or a r at ed secondar y cur r ent l ess t han t he cont i nuous- dut y cur r ent of t he cont r ol c i r cui t .

Pr ovi de vol t age r egul at i on of t he t r ansf or mer such t hat , wi t h r at ed pr i mar y vol t age and f r equency, t he secondar y vol t age i s not l ess t han 95 per cent nor mor e t han 105 per cent of r at ed secondar y vol t age.

Pr ovi de a sour ce of suppl y f or cont r ol - c i r cui t t r ansf or mer s at t he l oad s i de of t he mai n di sconnect i ng devi ce. Pr ot ect t he secondar y wi ndi ng of t he t r ansf or mer and cont r ol - c i r cui t wi r i ng agai nst over l oads and shor t c i r cui t s, wi t h f uses sel ect ed i n accor dance wi t h NEMA I CS 6. Gr ound t he secondar y wi ndi ng of t he cont r ol - c i r cui t t r ansf or mer i n accor dance wi t h

NEMA I CS 6.

2. 2. 4. 3 Magnet i c Cont r ol Rel ays

Pr ovi de magnet i c cont r ol r el ays f or ener gi z i ng and de- ener gi z i ng t he coi l s of magnet i c cont act or s or ot her magnet i cal l y oper at ed devi ces, i n r esponse t o var i at i ons i n t he condi t i ons of el ect r i c cont r ol devi ces i n accor dance with NEMA I CS 1, and NEMA I CS 2.

Ensur e t hat t he cor e- and- coi l assembl y oper at es sat i sf act or i l y wi t h coi l vol t ages bet ween 85 per cent and 110 per cent of t hei r vol t age r at i ng.

Pr ovi de r el ays t hat ar e desi gned t o accommodat e nor mal l y open and nor mal l y c l osed cont act s.

Pr ovi de [ 120] [ _____] V, 60- Hz, Cl ass [ AI B] [ _____] magnet i c cont r ol r el ays wi t h a cont i nuous- - cont act r at i ng of 10 A, and wi t h cur r ent - maki ng and

- br eaki ng abi l i t y i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2, t wo nor mal l y open and t wo nor mal l y c l osed.

2. 2. 4. 4 Pushbut t ons and Swi t ches

NOTE: Speci f y el ect r i cal l y hel d, magnet i c l at ch, pl ug- i n, or her met i cal l y seal ed.

a. Pushbut t ons

SECTI ON 26 05 71. 00 40 Page 14

For l ow- vol t age ac f ul l - vol t age magnet i c pushbut t on cont r ol l er s, pr ovi de heavy- dut y, oi l t i ght NEMA 250, Type [ 12] [ _____] , moment ar y- cont act devi ces r at ed 600 V, wi t h pi l ot l i ght , and wi t h t he number of but t ons and t he mar ki ng of i dent i f i cat i on pl at es as shown. Fur ni sh pushbut t on col or code i n accor dance wi t h NEMA I CS 6.

Pr ovi de pushbut t ons t hat ar e desi gned wi t h nor mal l y open, c i r cui t - c l osi ng cont act s; nor mal l y c l osed ci r cui t - openi ng cont act s; and t wo- ci r cui t nor mal l y open and nor mal l y c l osed ci r cui t - c l osi ng and - openi ng cont act s.

Ensur e t hat pushbut t on- cont act r at i ngs ar e i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2, wi t h cont act desi gnat i on A600.

I dent i f y pushbut t ons i n r emot e- cont r ol st at i ons wi t h i dent i f i cat i on pl at es af f i xed t o t he f r ont cover i n a pr omi nent l ocat i on. I dent i f y t he syst em bei ng cont r ol l ed on t he i dent i f i cat i on pl at e.

b. Sel ect or Swi t ches

Pr ovi de heavy- dut y, oi l t i ght , mai nt ai ned- cont act sel ect or swi t ches f or l ow- vol t age cont r ol c i r cui t s, wi t h t he number of posi t i ons and t he mar ki ng of i dent i f i cat i on pl at es i n accor dance wi t h NEMA I CS 1 and NEMA I CS 2.

I dent i f y sel ect or swi t ches i n r emot e- cont r ol st at i ons wi t h engr aved i dent i f i cat i on pl at es af f i xed t o t he f r ont cover i n a pr omi nent l ocat i on.

I dent i f y t he syst em bei ng cont r ol l ed on t he i dent i f i cat i on pl at e.

c. Ammet er Sel ect or Swi t ches

Pr ovi de r ot ar y, mul t i s t age, snap- act i on- t ype ammet er sel ect or swi t ches f or swi t chgear i n accor dance wi t h UL 20. Use si l ver - pl at ed cont act s r at ed f or 600 V, ac or dc. Pr ovi de a manual l y oper at ed, f our - posi t i on sel ect or swi t ch r at ed f or 600 V, 20 A, mi ni mum. Ensur e t hat t he swi t ch i s desi gned t o sel ect t he di spl ay of cur r ent r eadi ngs on each bus of t he mai n bus f r om a s i ngl e i ndi cat i ng i nst r ument . Mount t he ammet er swi t ch on t he hi nged f r ont panel of t he swi t chgear compar t ment , wi t h engr aved escut cheon pl at e.

Compl et el y i sol at e t he swi t ch f r om hi gh- vol t age c i r cui t s.

Pr ovi de a [ pi st ol - gr i p] [ oval ] - t ype sel ect or swi t ch handl e.

d. Vol t met er Sel ect or Swi t ches

Pr ovi de r ot ar y, snap- act i on- t ype vol t met er sel ect or swi t ches f or swi t chgear i n accor dance wi t h UL 20. Use si l ver - pl at ed cont act s r at ed f or 600 V ac or

dc. Pr ovi de manual l y oper at ed, f our - posi t i on swi t ches desi gned t o sel ect t he di spl ay of vol t age r eadi ngs on each phase of t he mai n bus f r om a s i ngl e i ndi cat i ng i nst r ument . Mount t he vol t met er swi t ch on t he hi nged f r ont panel of t he swi t chgear compar t ment , wi t h engr aved escut cheon pl at e.

Compl et el y i sol at e t he swi t ch f r om hi gh- vol t age c i r cui t s.

Pr ovi de a [ pi st ol - gr i p] [ oval ] - t ype sel ect or swi t ch handl e.

e. Mi scel l aneous Swi t ches

Pr ovi de f l oat , l i mi t , door , pr essur e, pr oxi mi t y, and ot her t ypes of swi t ches i n accor dance wi t h I PC D330 and of t he t ypes and cl asses i ndi cat ed.

2. 2. 5 Finish

SECTI ON 26 05 71. 00 40 Page 15

NOTE: For al l out door appl i cat i ons and al l i ndoor appl i cat i ons i n a har sh envi r onment r ef er t o Sect i on

09 96 00 HI GH- PERFORMANCE COATI NGS.

Hi gh- per f or mance coat i ngs ar e speci f i ed f or al l out door appl i cat i ons because ul t r avi ol et r adi at i on br eaks down most st andar d coat i ngs, causi ng a phenomenon known as chal k i ng, whi ch i s t he f i r st st age of cor r osi on. For addi t i onal i nf or mat i on, cont act t he Coat i ngs I ndust r y Al l i ance, speci f i c suppl i er s such as Keel er and Long and PPG, and NACE I nt er nat i onal ( NACE) .

Pr ot ect met al l i c mat er i al s agai nst cor r osi on. Pr ovi de equi pment wi t h t he st andar d f i ni sh by t he manuf act ur er when used f or most i ndoor i nst al l at i ons. For har sh i ndoor envi r onment s ( any ar ea subj ect ed t o chemi cal or abr asi ve act i on) and al l out door i nst al l at i ons, r ef er t o Sect i on 09 96 00 HI GH- PERFORMANCE COATI NGS.

2. 3 COMPONENTS

2. 3. 1 I nst r ument Tr ansf or mer s

Compl y wi t h t he i nt er f er ence r equi r ement s l i s t ed bel ow, measur ed i n accor dance wi t h I EEE C63. 2, and I EEE C63. 4 f or I nst r ument t r ansf or mer s.

Insulation Class kV

Basic Insulation

Level kV

Nominal System Voltage kV

Preferred Test

Vol t age for

Potential Transformers kV

Test Voltage f or Cur r ent Transformers kV

Radi o I nf l uence Vol t age Level , Microvolts

Dr y Oi l Type Fi l l ed

0.6 10 ---- ---- 0.76 250 250

1.2 30 0.208

0.416 0.832 1.04

0.132 0.264 0.528 0.66

0.76 250 250

2.5 45 2.40 1.52 1.6

250 250

5.0 60 4.16 4.80

2.64 3.04

3.34 250 250

8.7 75 7.20 8.32

4.57 5.28

5.77 250 250

15L or 15H

95 - 110 12.00 12.47 14.40

7.62 7.92 9.14

9.41 1000 250

25 150 23.00 14.60 15.70 2500 650

SECTI ON 26 05 71. 00 40 Page 16

34.5 200 34.50 21.90 23.0 ---- 650

46 250 46.00 29.20 29.30 ---- 1250

69 350 69.00 43.80 44.00 ---- 1250

92 450 92.00 58.40 58.40 ---- 2500

115 550 115.00 73.40 73.40 ---- 2500

138 650 138.00 88.00 88.00 ---- 2500

2. 3. 1. 1 Cur r ent Tr ansf or mer s

Ensur e t hat cur r ent t r ansf or mer s conf or m t o I EEE C57. 13 f or i nst al l at i on i n met al - c l ad swi t chgear . Use a st andar d 3- A secondar y t r ansf or mer .

Pr ovi de [ wound] [ bushi ng] [ bar ] [ wi ndow] - t ype t r ansf or mer s.

Pr ovi de t r ansf or mer s t hat have [ s i ngl e] [ doubl e] secondar y wi ndi ng.

Pr ovi de t r ansf or mer s t hat ar e compl et e wi t h a secondar y shor t - c i r cui t i ng device.

For wi ndow- t ype cur r ent t r ansf or mer s, pr ovi de i ndoor , dr y- t ype const r uct i on, wi t h secondar y cur r ent r at i ngs as i ndi cat ed wi t h t he speci f i ed bur den, f r equency, and accur acy.

2. 3. 1. 2 Pot ent i al Tr ansf or mer s

For pot ent i al t r ansf or mer s, conf or m t o I EEE C57. 13 f or i nst al l at i on i n met al - c l ad swi t chgear . Use st andar d 120- vol t secondar y t r ansf or mer s.

Pr ovi de t r ansf or mer s t hat have [ s i ngl e] [ t apped] [ doubl e] secondar y wi ndi ng.

Pr ovi de bur den, f r equency, and accur acy as r equi r ed.

For di sconnect i ng pot ent i al t r ansf or mer s wi t h i nt egr al f use mount i ngs and cur r ent - l i mi t i ng f uses, pr ovi de i ndoor , dr y- t ype t wo- wi ndi ng const r uct i on wi t h pr i mar y and secondar y vol t age r at i ngs as r equi r ed.

2. 3. 2 Enclosures

2. 3. 2. 1 Equi pment Encl osur es

Pr ovi de encl osur es f or equi pment i n accor dance wi t h NEMA 250.

[ Cont ai n equi pment t hat i s i nst al l ed i nsi de c l ean, dr y l ocat i ons i n a NEMA Type 1, gener al - pur pose sheet - st eel encl osur e.

][ Cont ai n equi pment t hat i s i nst al l ed i n wet l ocat i ons i n a NEMA Type 4, wat er t i ght , cor r osi on- r esi st ant , sheet - st eel encl osur e. Const r uct t he encl osur e t o pr event ent r ance of wat er when t est ed i n accor dance wi t h NEMA I CS 6 f or Type 4 encl osur es.

][ Cont ai n equi pment t hat i s i nst al l ed i n i ndust r i al l ocat i ons i n a NEMA Type 12, i ndust r i al - use, sheet - st eel encl osur e. Const r uct t he encl osur e t o

SECTI ON 26 05 71. 00 40 Page 17 pr event t he ent r ance of dust , l i nt , f i ber s, and f l y i ngs and t he seepage of oi l and cool ant .

][ Cont ai n equi pment t hat i s i nst al l ed i n Cl ass I , Di v i s i on 1, Gr oup A, B, C, and D, hazar dous l ocat i ons, i n NEMA Type 7 encl osur es appr oved f or t he speci f i c f l ammabl e gas or vapor t hat i s possi bl y pr esent under nor mal oper at i ng condi t i ons.

][ Cont ai n equi pment t hat i s i nst al l ed i n Cl ass I I , Di v i s i on 1, Gr oup E, F and G, hazar dous l ocat i ons, i n NEMA Type 9 encl osur es appr oved f or use wher e combust i bl e dust i s possi bl y pr esent under nor mal oper at i ng condi t i ons.

][ Fabr i cat e sheet - st eel encl osur es f r om uncoat ed car bon sheet - st eel of commer ci al qual i t y . Ensur e t hat t he box di mensi ons and t hi ckness of sheet - st eel conf or m t o UL 50.

][ Fabr i cat e st eel encl osur es f r om cor r osi on- r esi st ant , chr omi um- ni ckel sheet - st eel conf or mi ng t o ASTM A240/ A240M Type 300 ser i es wi t h ASM No. 4, gener al - pur pose, pol i shed f i ni sh. Ensur e t hat t he box di mensi ons and t hi ckness of sheet st eel conf or m t o UL 50.

][ Pr ovi de cast - i r on encl osur es f r om gr ay- i r on cast i ngs conf or mi ng t o ASTM A48/ A48M wi t h a t ensi l e- st r engt h c l assi f i cat i on r ecogni zed as sui t abl e f or t he appl i cat i on. Pr ovi de cast - met al encl osur es t hat ar e not l ess t han 3 mi l l i met er 1/ 8 i nch t hi ck at ever y poi nt , of gr eat er t hi ckness at r ei nf or c i ng r i bs and door edges, and not l ess t han 6 mi l l i met er 1/ 4 i nch t hi ck at t apped hol es f or condui t s.

] 2. 3. 2. 2 Remot e- Cont r ol St at i on Encl osur es

Pr ovi de r emot e- cont r ol st at i on encl osur es f or pushbut t ons, sel ect or swi t ches, and i ndi cat i ng l i ght s i n accor dance wi t h NEMA I CS 6 and NEMA 250.

[ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n i ndoor , c l ean, dr y l ocat i ons i n NEMA Type 1 gener al - pur pose, sheet - st eel encl osur es. Cont ai n r ecessed r emot e- cont r ol s t at i ons i n st andar d wal l out l et boxes wi t h mat chi ng cor r osi on- r esi st ant - st eel f l ush cover pl at es.

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n wet l ocat i ons i n NEMA Type 4, wat er t i ght , cor r osi on- r esi st ant , sheet - st eel encl osur es. Const r uct encl osur es t o pr event ent r ance of wat er when t est ed i n accor dance wi t h NEMA I CS 6 and NEMA 250 f or Type 4 encl osur es.

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n wet l ocat i ons i n NEMA Type 4, wat er t i ght , cast - i r on encl osur es. Const r uct encl osur es t o pr event ent r ance of wat er when t est ed i n accor dance wi t h NEMA I CS 6 and NEMA 250 f or Type 4 enclosures.

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n dr y, noncombust i bl e, dust - l aden at mospher es i n NEMA Type 12, dust t i ght , cast - i r on encl osur es, wi t h gasket s or t hei r equi val ent t o pr event t he ent r ance of dust .

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n i ndust r i al l ocat i ons i n NEMA Type 12, i ndust r i al - use, sheet - st eel encl osur es. Const r uct encl osur es t o pr event t he ent r ance of dust , l i nt , f i ber s, and f l y i ngs and t he seepage of oi l and cool ant .

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n i ndust r i al l ocat i ons i n NEMA Type 12, i ndust r i al - use, cast - i r on encl osur es. Const r uct encl osur es t o

SECTI ON 26 05 71. 00 40 Page 18 pr event t he ent r ance of dust , l i nt , f i ber s, and f l y i ngs and t he seepage of oi l and cool ant .

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n Cl ass I , Di v i s i on 1, Gr oup A, B, C, and D, hazar dous l ocat i ons i n NEMA Type 7 encl osur es, appr oved f or t he speci f i c f l ammabl e gas or vapor t hat i s possi bl y pr esent under nor mal oper at i ng condi t i ons.

][ Cont ai n r emot e- cont r ol st at i ons i nst al l ed i n Cl ass I I , Di v i s i on 1, Gr oup E, F and G, hazar dous l ocat i ons i n NEMA Type 9 encl osur es, appr oved f or use wher e combust i bl e dust i s possi bl y pr esent under nor mal oper at i ng conditions.

][ Fabr i cat e sheet - st eel encl osur es f r om uncoat ed car bon st eel sheet s of commer ci al qual i t y , wi t h box di mensi ons and t hi ckness of sheet st eel conf or mi ng t o UL 50.

][ Fabr i cat e st eel encl osur es f r om cor r osi on- r esi st ant , chr omi um- ni ckel sheet - st eel , conf or mi ng t o ASTM A240/ A240M, Type 300 ser i es wi t h ASM No. 4, gener al - pur pose, pol i shed f i ni sh. Ensur e t hat t he box di mensi ons and t hi ckness of t he sheet st eel conf or m t o UL 50.

][ Pr ovi de cast - i r on encl osur es of gr ay- i r on cast i ngs, conf or mi ng t o ASTM A48/ A48M, wi t h t ensi l e- st r engt h c l assi f i cat i on r ecogni zed as sui t abl e f or t hi s appl i cat i on. Pr ovi de cast met al encl osur es t hat ar e not l ess t han 3 mi l l i met er 1/ 8 i nch t hi ck at ever y poi nt , of gr eat er t hi ckness at r ei nf or c i ng r i bs and door edges, and not l ess t han 6 mi l l i met er 1/ 4 i nch t hi ck at t apped hol es f or condui t .

] I nst al l r emot e- cont r ol st at i ons wi t h t he cent er l i ne 1700 mi l l i met er 66 i nches above t he f i ni shed f l oor .

2. 3. 3 Ti me Swi t ches

Pr ovi de t i me swi t ches f or t he cont r ol of t ungst en- l amp l oads, f l uor escent - l amp l oads, r esi st i ve- heat i ng l oads, mot or s, and magnet i cal l y oper at ed devi ces, consi st i ng of a mot or - dr i ven t i me di al and swi t ch assembl y i n a NEMA 250, Type 1, gener al - pur pose encl osur e.

Pr ovi de mot or dr i ves consi st i ng of 120- V, s i ngl e- phase, 60- Hz, heavy- dut y, sel f - st ar t i ng synchr onous mot or s di r ect l y connect ed t o t he t i me di al t hr ough a gear t r ai n oper at i ng mechani sm. Pr ovi de a spr i ng- wound st or ed- ener gy sour ce of r eser ve power t hat aut omat i cal l y oper at es t he mechani sm f or a per i od of at l east 12 hour s i n case of el ect r i c power f ai l ur e. Ensur e t hat t he spr i ng aut omat i cal l y r ewi nds el ect r i cal l y i n not mor e t han 3 hour s af t er el ect r i c power i s r est or ed.

I ncl ude a heavy- dut y, gener al - pur pose, pr eci s i on snap- act i on swi t ch conf or mi ng t o UL 20 f or t he swi t ch mechani sm, wi t h pr ovi s i ons f or manual " OFF" and " ON" oper at i on of t he swi t ch.

Pr ovi de t i me swi t ches f or t he cont r ol of 120/ 240- V, t wo- and t hr ee- wi r e, s i ngl e- phase, 60- Hz ci r cui t s and 120/ 208- V, t hr ee- phase, f our - wi r e, 60- Hz ci r cui t s, wi t h a cont i nuous- cur r ent t ungst en- l amp l oad r at i ng of 35 A.

[ Pr ovi de 24- hour t i me di al s wi t h adj ust abl e on and of f t r i pper s f or r epet i t i ve swi t chi ng oper at i ons at t he same t i me each day. Cal i br at e t he di al s i n 15- mi nut e i nt er val s over a 24- hour per i od ar ound i t s c i r cumf er ence. Pr ovi de di al s t hat make one r evol ut i on i n t he 24- hour

SECTI ON 26 05 71. 00 40 Page 19 per i od. Make pr ovi s i on t o def eat t he swi t chi ng oper at i on over weekends or up t o 6 pr esel ect ed cal endar days each week. Pr ovi de t i me di al s t hat have a mi ni mum " ON" t i me set t i ng of not mor e t han 20 mi nut es, and ar e f ul l y adj ust abl e upwar d i n 15- mi nut e i nt er val s t hr oughout each day.

][ Pr ovi de 7- day- t ype t i me di al s wi t h adj ust abl e on and of f t r i pper s f or pr ogr ammed swi t chi ng oper at i ons f or each day i n t he week. Pr ovi de a di al t hat makes one r evol ut i on i n not mor e t han 2 1/ 2 hour s, and i s f ul l y adj ust abl e upwar d i n 2- hour i nt er val s t hr oughout each day. Cal i br at e t he di al i n 2- hour i nt er val s f or each day and f or each day i n t he week ar ound i t s c i r cumf er ence.

][ Pr ovi de ast r onomi c- t ype t i me di al s t hat aut omat i cal l y change set t i ngs each day, i n accor dance wi t h t he seasonal t i me changes i n sunr i se and sunset .

Pr ovi de ast r onomi c- t ype di al s t hat have adj ust abl e on and of f t r i pper s, f or r epet i t i ve swi t chi ng oper at i ons…