B150_Amendment_0001_-_26_41_00.pdf

BLDG150AM1 CURZ 152802

Ver mont Ai r Nat i onal Guar d Base, VT

* * * AMENDMENT 0001* * * SECTI ON 26 41 00

LI GHTNI NG PROTECTI ON SYSTEM

11/13

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 wi t hi n t he t ext by t he basi c desi gnat i on onl y.

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

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

NFPA 70 ( 2017) Nat i onal El ect r i cal Code

NFPA 780 ( 2017) 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

U. S. AI R FORCE ( USAF)

AFI 32- 1065 ( 1998) Gr oundi ng Syst ems

UNDERWRI TERS LABORATORI ES ( UL)

UL 467 ( 2013) Gr oundi ng and Bondi ng Equi pment

UL 96 ( 2016a) UL St andar d f or Saf et y Li ght ni ng Pr ot ect i on Component s

UL El ect r i cal Const r uct n ( 2012) El ect r i cal Const r uct i on Equi pment Directory

1. 2 RELATED REQUI REMENTS

1. 2. 1 Ver i f i cat i on of Di mensi ons

Conf i r m al l det ai l s of wor k, ver i f y al l di mensi ons i n f i el d, and advi se Cont r act i ng Of f i cer of any di scr epancy bef or e per f or mi ng wor k. Obt ai n pr i or appr oval of Cont r act i ng Of f i cer bef or e maki ng any depar t ur es f r om t he design.

1. 2. 2 Syst em Requi r ement s

Desi gn and pr ovi de a syst em f ur ni shed under t hi s speci f i cat i on consi st i ng of t he l at est UL Li st ed pr oduct s of a manuf act ur er r egul ar l y engaged i n pr oduct i on of l i ght ni ng pr ot ect i on syst em component s. Compl y wi t h NFPA 70, NFPA 780, and UL 96.

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AMENDMENT 0001

1. 2. 3 Li ght ni ng Pr ot ect i on Syst em I nst al l er s Document at i on

Pr ovi de document at i on showi ng t hat t he i nst al l er i s cer t i f i ed wi t h a commer ci al t hi r d- par t y i nspect i on company whose sol e wor k i s l i ght ni ng pr ot ect i on, or i s a UL Li st ed Li ght ni ng Pr ot ect i on I nst al l er . I n ei t her case, t he document at i on must show t hat t hey have compl et ed and passed t he r equi r ement s f or cer t i f i cat i on or l i s t i ng, and have a mi ni mum of 2 year s document ed exper i ence i nst al l i ng l i ght ni ng pr ot ect i on syst ems f or DoD pr oj ect s of s i mi l ar scope and compl exi t y.

1. 3 SUBMITTALS

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 i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y Not 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:

SD- 02 Shop Dr awi ngs

Over al l l i ght ni ng pr ot ect i on syst em; G

Each maj or component ; G

SD- 06 Test Repor t s

Li ght ni ng Pr ot ect i on and Gr oundi ng Syst em Test Pl an; G

Li ght ni ng Pr ot ect i on and Gr oundi ng Syst em Test ; G

SD- 07 Cer t i f i cat es

Li ght ni ng Pr ot ect i on Syst em I nst al l er s Document at i on; G

Component UL Li st ed and Label ed; G

Li ght ni ng pr ot ect i on syst em i nspect i on cer t i f i cat e; G

Roof manuf act ur er ' s war r ant y; G

1. 4 QUALI TY ASSURANCE

I n each st andar d r ef er r ed t o her ei n, consi der t he advi sor y pr ovi s i ons t o be mandat or y, as t hough t he wor d " shal l " or " must " has 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 st andar ds t o " 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 Cont r act i ng Of f i cer .

1. 4. 1 I nst al l at i on Dr awi ngs

1. 4. 1. 1 Over al l Syst em Dr awi ng

Submi t i nst al l at i on shop dr awi ng f or t he over al l l i ght ni ng pr ot ect i on syst em.

I ncl ude on t he dr awi ngs t he physi cal l ayout of t he equi pment ( pl an v i ew and el evat i ons) , mount i ng det ai l s , r el at i onshi p t o ot her par t s of t he wor k, and wi r i ng di agr ams.

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1. 4. 1. 2 Maj or Component s

Submi t det ai l dr awi ngs f or each maj or component i ncl udi ng manuf act ur er ' s descr i pt i ve and t echni cal l i t er at ur e, cat al og cut s, and i nst al l at i on instructions.

1. 4. 2 Component UL Li st ed and Label ed

Submi t pr oof of compl i ance t hat component s ar e UL Li st ed and Label ed.

Li st i ng al one i n UL El ect r i cal Const r uct n, whi ch i s t he UL El ect r i cal Const r uct i on Di r ect or y, i s not accept abl e evi dence. I n l i eu of Li st ed and Label ed, submi t wr i t t en cer t i f i cat e f r om an appr oved, nat i onal l y r ecogni zed t est i ng or gani zat i on equi pped t o per f or m such ser v i ces, st at i ng t hat i t ems have been t est ed and conf or m t o r equi r ement s and t est i ng met hods of Under wr i t er s Labor at or i es.

1. 4. 3 Li ght ni ng Pr ot ect i on and Gr oundi ng Syst em Test Pl an

Pr ovi de a l i ght ni ng pr ot ect i on and gr oundi ng syst em t est pl an. Det ai l bot h t he v i sual i nspect i on and el ect r i cal t est i ng of t he syst em and component s i n t he t est pl an. I dent i f y ( number ) t he syst em t est poi nt s/ l ocat i ons al ong wi t h a l i s t i ng or descr i pt i on of t he i t em t o be t est ed and t he t ype of t est t o be conduct ed. As a mi ni mum, i ncl ude a sket ch of t he f aci l i t y and sur r oundi ng l i ght ni ng pr ot ect i on syst em as par t of t he speci f i c t est pl an f or each st r uct ur e. I ncl ude t he r equi r ement s speci f i ed i n par agr aph, " Test i ng of I nt egr al Li ght ni ng Pr ot ect i on Syst em" i n t he t est pl an.

1. 4. 4 Li ght ni ng Pr ot ect i on Syst em I nspect i on Cer t i f i cat e

Pr ovi de cer t i f i cat i on f r om a commer ci al t hi r d- par t y i nspect i on company whose sol e wor k i s l i ght ni ng pr ot ect i on, st at i ng t hat t he l i ght ni ng pr ot ect i on syst em compl i es wi t h NFPA 780 and AFI 32- 1065. Thi r d par t y i nspect i on company cannot be t he syst em i nst al l er or t he syst em desi gner .

Al t er nat i vel y, pr ovi de a UL Li ght ni ng Pr ot ect i on I nspect i on Mast er Label Cer t i f i cat e f or each f aci l i t y i ndi cat i ng compl i ance t o NFPA 780 and AFI 32- 1065. I n ei t her case, AFI 32- 1065 t akes pr ecedence over NFPA 780, whet her or not i t i s mor e st r i ngent .

I nspect i on must cover ever y connect i on, ai r t er mi nal , conduct or , f ast ener , accessi bl e gr oundi ng poi nt and ot her component s of t he l i ght ni ng pr ot ect i on syst em t o ensur e 100% syst em compl i ance. Thi s i nc l udes wi t nessi ng t he t est s f or t he r esi st ance measur ement s f or gr ound r ods wi t h t est wel l s, and f or cont i nui t y measur ement s f or bonds. I t al so i ncl udes ver i f i cat i on of pr oper sur ge pr ot ect i ve devi ces f or power , dat a and t el ecommuni cat i on syst ems. Random sampl i ng or par t i al i nspect i on of a f aci l i t y i s not acceptable.

1. 5 SI TE CONDI TI ONS

Conf i r m al l det ai l s of wor k, ver i f y al l di mensi ons i n f i el d, and advi se Cont r act i ng Of f i cer of any di scr epancy bef or e per f or mi ng wor k. Obt ai n pr i or appr oval of Cont r act i ng Of f i cer bef or e changi ng t he desi gn.

PART 2 PRODUCTS

2. 1 MATERIALS

Do not use a combi nat i on of mat er i al s t hat f or ms an el ect r ol yt i c coupl e of such nat ur e t hat cor r osi on i s accel er at ed i n t he pr esence of moi st ur e

92654Bldg150 SECTI ON 26 41 00 Page 3 unl ess moi st ur e i s per manent l y excl uded f r om t he j unct i on of such met al s.

Wher e unusual condi t i ons exi st whi ch woul d cause cor r osi on of conduct or s, pr ovi de conduct or s wi t h pr ot ect i ve coat i ngs, such as t i n or l ead, or over si ze conduct or s. Wher e a mechani cal hazar d i s i nvol ved, i ncr ease conduct or s i ze t o compensat e f or t he hazar d or pr ot ect conduct or s. When met al l i c condui t or t ubi ng i s pr ovi ded, el ect r i cal l y bond conduct or t o condui t or t ubi ng at t he upper and l ower ends by c l amp t ype connect or s or wel ds ( i ncl udi ng exot her mi c) . Al l l i ght ni ng pr ot ect i on component s, such as bondi ng pl at es, ai r t er mi nal s, ai r t er mi nal suppor t s and br aces, chi mney bands, c l i ps, connect or f i t t i ngs, and f ast ener s ar e t o compl y wi t h t he r equi r ement s of UL 96 c l asses as appl i cabl e.

2. 1. 1 Mai n and Bondi ng Conduct or s

NFPA 780 and UL 96 Cl ass I , Cl ass I I , or Cl ass I I modi f i ed mat er i al s as applicable.

2. 2 COMPONENTS

2. 2. 1 Ai r Ter mi nal s

Pr ovi de sol i d ai r t er mi nal s wi t h a bl unt t i p. Tubul ar ai r t er mi nal s ar e not per mi t t ed. Suppor t ai r t er mi nal s mor e t han 24 i nches i n l engt h by sui t abl e br ace, suppor t ed at not l ess t han one- hal f t he hei ght of t he t er mi nal .

2. 2. 2 Gr ound Rods

Pr ovi de gr ound r ods made of copper - c l ad st eel sol i d copper conf or mi ng t o conf or m t o UL 467. Pr ovi de gr ound r ods t hat ar e not l ess t han 3/ 4 i nch i n di amet er and 10 f eet i n l engt h. Do not mi x gr ound r ods of copper - c l ad st eel or sol i d copper on t he j ob.

2. 2. 3 Connect i ons and Ter mi nat i ons

Pr ovi de connect or s f or spl i c i ng conduct or s t hat conf or m t o UL 96, c l ass as appl i cabl e. Conduct or connect i ons can be made by c l amps or wel ds ( i ncl udi ng exot her mi c) . Pr ovi de st y l e and si ze connect or s r equi r ed f or t he i nst al l at i on.

2. 2. 4 Connect or Fi t t i ngs

Pr ovi de connect or f i t t i ngs f or " end- t o- end" , " Tee" , or " Y" spl i ces t hat conf or m t o NFPA 780 and UL 96.

PART 3 EXECUTI ON

3. 1 I NTEGRAL SYSTEM

Pr ovi de a l i ght ni ng pr ot ect i on syst em t hat meet s t he r equi r ement s of NFPA 780. Li ght ni ng pr ot ect i on syst em consi st s of ai r t er mi nal s, r oof conduct or s, down conduct or s, gr ound connect i ons, gr oundi ng el ect r odes and gr ound r i ng el ect r ode conduct or . Expose conduct or s on t he st r uct ur es except wher e conduct or s ar e r equi r ed t o be i n pr ot ect i ve s l eeves. Bond secondar y conduct or s wi t h gr ounded met al l i c par t s wi t hi n t he bui l di ng.

Make i nt er connect i ons wi t hi n s i de- f l ash di st ances at or bel ow t he l evel of t he gr ounded met al l i c par t s.

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3. 1. 1 Roof - Mount ed Component s

Coor di nat e wi t h t he r oof i ng manuf act ur er and pr ovi de cer t i f i cat i on t hat t he r oof manuf act ur er ' s war r ant y i s not v i ol at ed by t he i nst al l at i on met hods f or ai r t er mi nal s and r oof conduct or s.

3. 1. 1. 1 Ai r Ter mi nal s

Use adhesi ve shoes wi t h adhesi ve appr oved by t he r oof manuf act ur er when i nst al l i ng ai r t er mi nal s on " r ubber " ( EPDM) t ype r oof s. I n ar eas of snow or const ant wi nd, ensur e t hat a sect i on of r oof i ng mat er i al ( mi ni mum di mensi onal ar ea of 1 squar e f oot ) i s f i r st gl ued t o t he r oof and t hen t he ai r t er mi nal i s gl ued t o i t unl ess t he r oof manuf act ur er r ecommends anot her solution.

3. 1. 1. 2 Roof Conduct or s

Use adhesi ve shoes wi t h adhesi ve appr oved by t he r oof manuf act ur er when i nst al l i ng r oof conduct or s on " r ubber " ( EPDM) t ype r oof s. Use a st andi ng seam base f or i nst al l at i on of r oof conduct or s on a st andi ng seam met al r oof t hat does not pr oduce any r oof penet r at i ons.

3. 1. 2 Down Conduct or s

Pr ot ect exposed down conduct or s f r om physi cal damage as r equi r ed by NFPA 780.

Use Schedul e 80 PVC t o pr ot ect down conduct or s. Pai nt t he Schedul e 80 PVC t o mat ch t he sur r oundi ng sur f ace wi t h pai nt t hat i s appr oved f or use on

PVC.

3. 1. 3 Gr ound Connect i ons

At t ach each down conduct or and gr ound r i ng el ect r ode t o gr ound r ods by wel di ng ( i ncl udi ng exot her mi c) , br azi ng, or compr essi on. Al l connect i ons t o gr ound r ods bel ow gr ound l evel must be by exot her mi c wel d connect i on or wi t h a hi gh compr essi on connect i on usi ng a hydr aul i c or el ect r i c compr essi on t ool t o pr ovi de t he cor r ect c i r cumf er ent i al pr essur e.

Accessi bl e connect i ons above gr ound l evel and i n t est wel l s can be accompl i shed by mechani cal c l ampi ng.

3. 1. 4 Gr oundi ng El ect r odes

Ext end dr i ven gr ound r ods ver t i cal l y i nt o t he exi st i ng undi st ur bed ear t h f or a di st ance of not l ess 10 f eet . Set gr ound r ods not l ess t han 3 f eet nor mor e t han 8 f eet , f r om t he st r uct ur e f oundat i on, and at l east beyond t he dr i p l i ne f or t he f aci l i t y . Af t er t he compl et ed i nst al l at i on, measur e t he t ot al r esi st ance t o gr ound usi ng t he f al l - of - pot ent i al met hod descr i bed in I EEE 81. Maxi mum al l owed r esi st ance of a dr i ven gr ound r od i s 25 ohms, under nor mal l y dr y condi t i ons. Cont act t he Cont r act i ng Of f i cer f or di r ect i on on how t o pr oceed when t wo of any t hr ee gr ound r ods, dr i ven not l ess t han 10 f eet i nt o t he gr ound, a mi ni mum of 10 f eet apar t , and equal l y spaced ar ound t he per i met er , gi ve a combi ned val ue exceedi ng 50 ohms i mmedi at el y af t er havi ng dr i ven.

3. 2 APPLICATIONS

3. 2. 1 Nonmet al l i c Ext er i or Wal l s wi t h Met al l i c Roof

Bond met al r oof sect i ons t oget her whi ch ar e i nsul at ed f r om each ot her so t hat t hey ar e el ect r i cal l y cont i nuous, havi ng a sur f ace cont act of at l east

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3 squar e i nches.

3. 3 I NTERFACE WI TH OTHER STRUCTURES

3. 3. 1 Fences

Bond met al f ence and gat e syst ems t o t he l i ght ni ng pr ot ect i on syst em whenever t he f ence or gat e i s wi t hi n 6 f eet of any par t of t he l i ght ni ng pr ot ect i on syst em i n accor dance wi t h ANSI C2.

3. 4 RESTORATION

Wher e sod has been r emoved, pl ace sod as soon as possi bl e af t er compl et i ng t he backf i l l i ng. Rest or e, t o or i gi nal condi t i on, t he ar eas di st ur bed by t r enchi ng, st or i ng of di r t , cabl e l ayi ng, and ot her wor k. Over f i l l t o accommodat e f or set t l i ng. I ncl ude necessar y t opsoi l , f er t i l i z i ng, l i mi ng, seedi ng, soddi ng, spr i ggi ng or mul chi ng i n any r est or at i on. Mai nt ai n di st ur bed sur f aces and r epl acement s unt i l f i nal accept ance.

3. 5 FI ELD QUALI TY CONTROL

3. 5. 1 Li ght ni ng Pr ot ect i on and Gr oundi ng Syst em Test

Test t he l i ght ni ng pr ot ect i on and gr oundi ng syst em t o ensur e cont i nui t y i s not i n excess of 1 ohm and t hat r esi st ance t o gr ound i s not i n excess of 25 ohms. Pr ovi de document at i on f or t he measur ed val ues at each t est poi nt .

Test t he gr ound r od f or r esi st ance t o gr ound bef or e maki ng connect i ons t o t he r od. Ti e t he gr oundi ng syst em t oget her and t est f or r esi st ance t o gr ound. Make r esi st ance measur ement s i n dr y weat her , not ear l i er t han 48 hour s af t er r ai nf al l . I ncl ude i n t he wr i t t en r epor t : l ocat i ons of t est poi nt s, measur ed val ues f or cont i nui t y and gr ound r esi st ances, and soi l condi t i ons at t he t i me t hat measur ement s wer e made. Submi t r esul t s of each t est t o t he Cont r act i ng Of f i cer .

- - End of Sect i on - - * * * AMENDMENT 0001* * *

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