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This document is a technical specification section for basic electrical materials and methods applicable to Tinker Air Force Base, Oklahoma construction projects.
The specification establishes mandatory requirements for electrical installations, materials, and equipment across Division 26 (Electrical) and Division 33 (Utilities) work, with specific applicability to interior distribution systems, low voltage switchgear, interior and exterior lighting, and underground electrical distribution. Electrical characteristics are defined as 12.46 kV primary (three phase, three wire, 60 Hz) and 480 volts secondary (three phase, four wire). The specification references industry standards including IEEE C2 and C57.12.28/29, NFPA 70, NEMA 250, and ASTM D709. All advisory provisions in referenced publications are made mandatory. Equipment and materials must be from manufacturers with at least 2 years of satisfactory commercial or industrial use in similar applications, or alternatively, possess certified field operation records of not less than 6,000 hours. Products manufactured more than 3 years prior to delivery are prohibited. Contractors must provide shop drawings with wiring diagrams, product data with performance curves, manufacturer nameplates, field-fabricated laminated plastic nameplates (0.125 inch melamine, white with black core, minimum 0.25 inch lettering), and posted operating instructions including wiring diagrams, startup procedures, safety precautions, and failure protocols. Warning signs are required for equipment exceeding 600 volts, with specifications for self-adhesive decals (7 by 10 inches) or metal fence-mounted signs (14 by 10 inches). Instruction to Government personnel in equipment operation and maintenance is required during the first regular work week after acceptance, with classroom and hands-on instruction as specified in individual sections.
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Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019
SECTI ON 26 00 00. 00 20
BASI C ELECTRI CAL MATERI ALS AND METHODS
04/17
PART 1 GENERAL
1. 1 REFERENCES
The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by t he basi c desi gnat i on onl y.
ASTM I NTERNATI ONAL ( ASTM)
ASTM D709 ( 2016) Lami nat ed Ther moset t i ng Mat er i al s
I NSTI TUTE OF ELECTRI CAL AND ELECTRONI CS ENGI NEERS ( I EEE)
I EEE 100 ( 2000; Ar chi ved) The Aut hor i t at i ve Di ct i onar y of I EEE St andar ds Ter ms
I EEE C2 ( 2012; Er r at a 1 2012; I NT 1- 4 2012; Er r at a
2 2013; I NT 5- 7 2013; I NT 8- 10 2014; I NT
11 2015; I NT 12 2016) Nat i onal El ect r i cal Saf et y Code
I EEE C57. 12. 28 ( 2014) St andar d f or Pad- Mount ed Equi pment
- Encl osur e I nt egr i t y
I EEE C57. 12. 29 ( 2014) St andar d f or Pad- Mount ed Equi pment
- Encl osur e I nt egr i t y f or Coast al Environments
NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)
NEMA 250 ( 2014) Encl osur es f or El ect r i cal Equi pment ( 1000 Vol t s Maxi mum)
NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)
NFPA 70 ( 2014; AMD 1 2013; Er r at a 1 2013; AMD 2 2013; Er r at a 2 2013; AMD 3 2014; Er r at a 3- 4 2014; AMD 4- 6 2014) Nat i onal El ect r i cal Code
1. 2 RELATED REQUI REMENTS
Thi s sect i on appl i es t o cer t ai n sect i ons of Di v i s i on 02, EXI STI NG CONDI TI ONS Di vi s i on 11, EQUI PMENT, Di v i s i on 13, SPECI AL CONSTRUCTI ON, and Di vi s i on 14, CONVEYI NG EQUI PMENT and Di vi s i ons 22 and 23, PLUMBI NG and HEATI NG VENTI LATI NG AND AI R CONDI TI ONI NG. Thi s sect i on appl i es t o al l sect i ons of Di v i s i on 26 and 33, ELECTRI CAL and UTI LI TI ES, of t hi s pr oj ect speci f i cat i on unl ess speci f i ed ot her wi se i n t he i ndi v i dual sect i ons. Thi s sect i on has been i ncor por at ed i nt o, and t hus, does not appl y t o, and i s not r ef er enced i n t he f ol l owi ng sect i ons.
Sect i on 26 20 00 I NTERI OR DI STRI BUTI ON SYSTEM
Apr i l 2019 Page 1 SECTI ON 26 00 00. 00 20
Sect i on 26 23 00 LOW VOLTAGE SWI TCHGEAR Sect i on 26 51 00 I NTERI OR LI GHTI NG Sect i on 26 56 00 EXTERI OR LI GHTI NG Sect i on 33 71 02 UNDERGROUND ELECTRI CAL DI STRI BUTI ON
1. 3 DEFINITIONS
a. 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, shal l be as def i ned i n I EEE 100.
b. The t echni cal sect i ons r ef er r ed t o her ei n ar e t hose speci f i cat i on sect i ons t hat descr i be pr oduct s, i nst al l at i on pr ocedur es, and equi pment oper at i ons and t hat r ef er t o t hi s sect i on f or det ai l ed descr i pt i on of submi t t al t ypes.
c. The t echni cal par agr aphs r ef er r ed t o her ei n ar e t hose par agr aphs i n PART 2 - PRODUCTS and PART 3 - EXECUTI ON of t he t echni cal sect i ons t hat descr i be pr oduct s, syst ems, i nst al l at i on pr ocedur es, equi pment , and t est met hods.
1. 4 ELECTRI CAL CHARACTERI STI CS
El ect r i cal char act er i st i cs f or t hi s pr oj ect shal l be 12. 46 kV pr i mar y, t hr ee phase, t hr ee wi r e, 60 Hz, and 480 vol t s secondar y, t hr ee phase, f our wi r e, or as speci f i ed. Fi nal connect i ons t o t he power di st r i but i on syst em shal l be as speci f i ed and shal l be made by t he Cont r act or as di r ect ed by t he Cont r act i ng Of f i cer .
1. 5 ADDI TI ONAL SUBMI TTALS I NFORMATI ON
Submi t t al s r equi r ed i n ot her sect i ons t hat r ef er t o t hi s sect i on must conf or m t o t he f ol l owi ng addi t i onal r equi r ement s as appl i cabl e.
1. 5. 1 Shop Dr awi ngs ( SD- 02)
I ncl ude wi r i ng di agr ams and i nst al l at i on det ai l s of equi pment i ndi cat i ng pr oposed l ocat i on, l ayout and ar r angement , cont r ol panel s, accessor i es, pi pi ng, duct wor k, and ot her i t ems t hat must be shown t o ensur e a coor di nat ed i nst al l at i on. Wi r i ng di agr ams shal l i dent i f y c i r cui t t er mi nal s and i ndi cat e t he i nt er nal wi r i ng f or each i t em of equi pment and t he i nt er connect i on bet ween each i t em of equi pment . Dr awi ngs shal l i ndi cat e adequat e c l ear ance f or oper at i on, mai nt enance, and r epl acement of oper at i ng equi pment devi ces.
1. 5. 2 Pr oduct Dat a ( SD- 03)
Submi t t al shal l i ncl ude per f or mance and char act er i st i c cur ves.
1. 6 QUALI TY ASSURANCE
1. 6. 1 Regul at or y Requi r ement s
I n each of t he publ i cat i ons r ef er r ed t o her ei n, consi der t he advi sor y pr ovi s i ons t o be mandat or y, as t hough t he wor d, " shal l " 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 . Equi pment , mat er i al s, i nst al l at i on, and wor kmanshi p shal l be i n accor dance wi t h t he mandat or y
Apr i l 2019 Page 2 SECTI ON 26 00 00. 00 20 and advi sor y pr ovi s i ons of NFPA 70 unl ess mor e st r i ngent r equi r ement s ar e speci f i ed or i ndi cat ed.
1. 6. 2 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. Pr oduct s shal l 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. The 2- year per i od shal l i ncl ude 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. The pr oduct shal l 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. 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, t hese i t ems shal l be 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 he t echni cal sect i on.
1. 6. 2. 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. 6. 2. 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 shal l not be used, unl ess speci f i ed ot her wi se.
1. 7 WARRANTY
The equi pment i t ems shal l be suppor t ed by ser vi ce or gani zat i ons whi ch 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 POSTED OPERATI NG I NSTRUCTI ONS
Pr ovi de f or each syst em and pr i nci pal i t em of equi pment as speci f i ed i n t he t echni cal sect i ons f or use by oper at i on and mai nt enance per sonnel .
The oper at i ng i nst r uct i ons shal l i ncl ude t he f ol l owi ng:
a. Wi r i ng di agr ams, cont r ol di agr ams, and cont r ol sequence f or each pr i nci pal syst em and i t em of equi pment .
b. St ar t up, pr oper adj ust ment , oper at i ng, l ubr i cat i on, and shut down procedures.
c. Saf et y pr ecaut i ons.
d. The pr ocedur e i n t he event of equi pment f ai l ur e.
e. Ot her i t ems of i nst r uct i on as r ecommended by t he manuf act ur er of each syst em or i t em of equi pment .
Pr i nt or engr ave oper at i ng i nst r uct i ons and f r ame under gl ass or i n appr oved l ami nat ed pl ast i c. Post i nst r uct i ons wher e di r ect ed. For oper at i ng i nst r uct i ons exposed t o t he weat her , pr ovi de weat her - r esi st ant
Apr i l 2019 Page 3 SECTI ON 26 00 00. 00 20 mat er i al s or weat her pr oof encl osur es. Oper at i ng i nst r uct i ons shal l not f ade when exposed t o sunl i ght and shal l be secur ed t o pr event easy r emoval or peel i ng.
1. 9 MANUFACTURER' S NAMEPLATE
Each i t em of equi pment shal l have a namepl at e bear i ng t he manuf act ur er ' s name, addr ess, model number , and ser i al number secur el y af f i xed i n a conspi cuous pl ace; t he namepl at e of t he di st r i but i ng agent wi l l not be acceptable.
1. 10 FI ELD FABRI CATED NAMEPLATES
ASTM D709. Pr ovi de l ami nat ed pl ast i c namepl at es f or each equi pment encl osur e, r el ay, swi t ch, and devi ce; as speci f i ed i n t he t echni cal sect i ons or as i ndi cat ed on t he dr awi ngs. Each namepl at e i nscr i pt i on shal l i dent i f y t he f unct i on and, when appl i cabl e, t he posi t i on.
Namepl at es shal l be mel ami ne pl ast i c, 0. 125 i nch t hi ck, whi t e wi t h bl ack cent er cor e. Sur f ace shal l be mat t e f i ni sh. Cor ner s shal l be squar e.
Accur at el y al i gn l et t er i ng and engr ave i nt o t he cor e. Mi ni mum si ze of namepl at es shal l be one by 2. 5 i nches. Let t er i ng shal l be a mi ni mum of
0. 25 i nch hi gh nor mal bl ock st y l e.
1. 11 WARNI NG SI GNS
Pr ovi de war ni ng si gns f or t he encl osur es of el ect r i cal equi pment i ncl udi ng subst at i ons, pad- mount ed t r ansf or mer s, pad- mount ed swi t ches, gener at or s, and swi t chgear havi ng a nomi nal r at i ng exceedi ng 600 vol t s.
a. When t he encl osur e i nt egr i t y of such equi pment i s speci f i ed t o be i n accor dance wi t h I EEE C57. 12. 28 or I EEE C57. 12. 29, such as f or pad- mount ed t r ansf or mer s, pr ovi de sel f - adhesi ve war ni ng si gns on t he out si de of t he hi gh vol t age compar t ment door ( s) . Si gn shal l be a decal and shal l have nomi nal di mensi ons of 7 by 10 i nches wi t h t he l egend " DANGER HI GH VOLTAGE" pr i nt ed i n t wo l i nes of nomi nal 2 i nch hi gh l et t er s. The wor d " DANGER" shal l be i n whi t e l et t er s on a r ed backgr ound and t he wor ds " HI GH VOLTAGE" shal l be i n bl ack l et t er s on a whi t e backgr ound. Decal shal l be Pandui t No. PPSO710D72 or appr oved equal.
b. When such equi pment i s guar ded by a f ence, mount s i gns on t he f ence.
Pr ovi de met al s i gns havi ng nomi nal di mensi ons of 14 by 10 i nches wi t h t he l egend " DANGER HI GH VOLTAGE KEEP OUT" pr i nt ed i n t hr ee l i nes of nomi nal 3 i nch hi gh whi t e l et t er s on a r ed and bl ack f i el d.
1. 12 ELECTRI CAL REQUI REMENTS
El ect r i cal i nst al l at i ons shal l conf or m t o I EEE C2, NFPA 70, and r equi r ement s speci f i ed her ei n.
1. 13 I NSTRUCTI ON TO GOVERNMENT PERSONNEL
Wher e speci f i ed i n t he t echni cal sect i ons, f ur ni sh t he ser vi ces of compet ent i nst r uct or s t o gi ve f ul l i nst r uct i on t o desi gnat ed Gover nment per sonnel i n t he adj ust ment , oper at i on, and mai nt enance of t he speci f i ed syst ems and equi pment , i ncl udi ng per t i nent saf et y r equi r ement s as r equi r ed. I nst r uct or s shal l be t hor oughl y f ami l i ar wi t h al l par t s of t he i nst al l at i on and shal l be t r ai ned i n oper at i ng t heor y as wel l as pr act i cal oper at i on and mai nt enance wor k. I nst r uct i on shal l be gi ven dur i ng t he
Apr i l 2019 Page 4 SECTI ON 26 00 00. 00 20 f i r st r egul ar wor k week af t er t he equi pment or syst em has been accept ed and t ur ned over t o t he Gover nment f or r egul ar oper at i on. The number of man- days ( 8 hour s per day) of i nst r uct i on f ur ni shed shal l be as speci f i ed i n t he i ndi v i dual sect i on. When mor e t han 4 man- days of i nst r uct i on ar e speci f i ed, use appr oxi mat el y hal f of t he t i me f or c l assr oom i nst r uct i on.
Use ot her t i me f or i nst r uct i on wi t h equi pment or syst em. When si gni f i cant changes or modi f i cat i ons i n t he equi pment or syst em ar e made under t he t er ms of t he cont r act , pr ovi de addi t i onal i nst r uct i ons t o acquai nt t he oper at i ng per sonnel wi t h t he changes or modi f i cat i ons.
PART 2 PRODUCTS
2. 1 FACTORY APPLI ED FI NI SH
El ect r i cal equi pment shal l have f act or y- appl i ed pai nt i ng syst ems whi ch shal l , as a mi ni mum, meet t he r equi r ement s of NEMA 250 cor r osi on- r esi st ance t est and t he addi t i onal r equi r ement s speci f i ed i n t he t echni cal sect i ons.
PART 3 EXECUTI ON
3. 1 FI ELD APPLI ED PAI NTI NG
Pai nt el ect r i cal equi pment as r equi r ed t o mat ch f i ni sh of adj acent sur f aces or t o meet t he i ndi cat ed or speci f i ed saf et y cr i t er i a. Pai nt i ng shal l be as speci f i ed i n t he sect i on speci f y i ng t he associ at ed el ect r i cal equipment.
3. 2 FI ELD FABRI CATED NAMEPLATE MOUNTI NG
Pr ovi de number , l ocat i on, and l et t er desi gnat i on of namepl at es as i ndi cat ed. Fast en namepl at es t o t he devi ce wi t h a mi ni mum of t wo sheet - met al scr ews or t wo r i vet s.
3. 3 WARNI NG SI GN MOUNTI NG
Pr ovi de t he number of s i gns r equi r ed t o be r eadabl e f r om each accessi bl e s i de, but space t he si gns a maxi mum of 30 f eet apar t .
- - End of Sect i on - -
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