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<br />300-6
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<br />302.500" 11.otricalBondin~ P'& J9~pts . ~ I,{ ,
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<br />~;':'~i~E~cb joint on ~ast iron pipe~ ,valve., hydrants.or f,ittinqs," \.
<br />!" either "pUsh-ont' or mechanical ,join~ type shall ,be ,electr1cally 'I' I!
<br />bonded with an externa],. cOPP8:r, jump,r capable of cat:rying 500
<br />'~ps. of current for an extended'petiod of.t1.~ to provide ~ , I
<br />. inteq~al -elect.ric - thawinq cap~bilittes. . . , ',,11_
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<br />These copper jumpers can be 'either .hoP ,or f~eld applied in
<br />acc~rdance with these Specifications. For-field applied copper I,
<br />jumpers, either the "BUmdy-'I'hermow.ld~' as supplied by Burndy .1,1
<br />, corporation, 'Norwalk, con-necticut, ,r "CadW'eld" by .Erioo I
<br />Products Company, Cleveland, Ohio w~ll "bepe~itted-. - I
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<br />. CONTRACTORs -0+ sUPPliers shall subm~ t the method they propose 'I ( ,
<br />to use for appr~val prior to,constrpction. 'j
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<br />The copper jumper shall be a minimu1b 1/16"' X-1/2tf . wide flat '1'1-
<br />strip, or equal cross section round" Qopper w.ire in the 'annealed 1
<br />condition conforming to ASTM- SpecifJ,cation',B152-58 Type DHP~- ,
<br />
<br />The copper jumpers 'shall be welded \0 the 'pipe and~ittings bytl,1
<br />the metallic-arc welding proQess, if shop applied or by ,the 1
<br />eXQtbermic welding prooess if fie14t applie"d~ . ,~\, '
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<br />The copper jumper can be-applied aSlasinqlest-rip, welded at . J
<br />each end across the joint ,or by mul~iple stripsw~th bolte4 '
<br />,-' connections in the middle. ' siliconlbronze bolts andriuts shall :'1,.
<br />, be used _on all bolted connections. II.' - -
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<br />All welded connections shall ,be mad.' on a. clean metal- surfaca II
<br />, ':,: , Which bas been ground to. remcve coating and oxide. The area at ,i
<br />, ",1" ,', the connection, inc,l~ding th.. weld, ~ shall- be refini$hed with its ' ~
<br />original coating or other sui~able frotective_,coat,ingS -~P'Cit1~d.ft.
<br />
<br />Theass.mbleti copper jumper a,?ro_ss j.bejoints ,snall be s~ ' - I
<br />, . installed: that expansion, contrac:ti,n, or relative - pipe Xl\ovemfant 1-
<br />incidental, to normal, service use wiJ,l not - di\1DCige . the' _ connection'l
<br />to .\Joh. an ext.ent that eleot:tica~ r,.istance will vary aoross . " .
<br />the joint. ' ~ \
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<br />The OOJQPleted watermai,nsystem _Shall, be testett tor electrical I",
<br />.c:onductivity aocording t(J that.- .tat!d in "test.ing" ..1n,. these-. -I
<br />, '" 'II' .pecifioation.. tl", 1('-
<br />
<br />. 3,02; 60b l{YdJ"ants _ if - !
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<br />1~fPIV ;. Fire hydxoants shall _meet the requ1riment.s bf A.W.W~A.. stancle.rds I'i
<br />'i...m'(..../6t~~\ C502. Hydrants shall be Wateroua, 'odel WB-59 or WB-100 break- .-
<br />y ~~'~~Off .type with breakable ground line~flange or approved equ~l. I -
<br />. /'~'_ C1~'~ ,,:7, M}.",,':~','; ,'The hydrants shall have 'two 2 '1/2" ~ose connections and one "II .
<br />~ ,4 -1/2" ~teamer connection and-all ~reads shall- be National
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