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a� _I <br /> �.,�}� <br /> ,. <br /> lllfi'?Rrl�f'Y' <br /> y", <br /> Ward[�fanufaduring <br /> f � 117 Gulick SL <br /> f3lossburg,PA 16912 <br /> .v,,..�.::':•:_.li::�i:t'M TeI:(570)638-2131 <br /> Far:(570)638-3410 <br /> cou�t the steps you ..�.r.w�x.� <br /> save with WARDFLEX. <br /> Technical Bulletin:#WF2008-1 <br /> WARDFLEX�CSST Electrical Bonding <br /> This technical bulletin supersedes all prior documenu relating to thc electrical bonding of <br /> WARDFLEX�CSST gas piping system and dcfines the mandatory manufacture's requircments for <br /> diiect bonding. <br /> Direct bonding is required for all natural and LP gas piping systems incorporating WARDFLEX� <br /> CSST�vhether or not the piping system is connextod to an elcctrically powcred gas appliance. Dircct ! <br /> bonding is included as part of thc manufucturc's requiremcnts for both single family and multi-family ; <br /> , buildings. A person l:nowledgeable about electrical system design,local electrical code,and these <br /> ; requirements should spvcify the bonding for commercial applications. <br /> � WARDFLEX� CSST installed insidc or attachc� to thc exterior of a building or structure shall be <br /> electrically continuous and dicectly bondod, by a qualilied person, to the ground system of the <br /> i building. The gas piping is considered to be directly bonded when installed in accordance with the <br /> , following instructions: <br /> � . A bonding jumper is pecmanondy and directly connected to the electrical service grounding <br /> � system. This can be achieved through a connection to the electrical service equipment , <br /> enclosure,the grounded conductor at the electrical service,the grounding electrnde conductor <br /> (whene of su�cient size)or to the one or more grounding electrodes used. <br /> • A single bond connection is made to the building gas piping downstream of the atility meter I <br /> or sccond stagc rcgulator(LP systcros),but ncar thc gas scrvicc cntrancc(cithcr outdoors or , <br /> indoors) of the swcture, or downstream of the gas meter of each individual housing unit <br /> �rithin a multi-famity structure. A "daisy chain"configuration of the bonding conductor is <br /> permitted for multi-meter installations. A bonding connection shall not be made to the <br /> anderground,natural Sas utility service line or the underground supply line from a LP storage <br /> tanl:. <br /> • The bonding conductor is not smaller than a #6 AWG copper wire or equivalent. The I <br /> bonding conductor is installed and protected in acoordamce with thc NEC. <br /> . The bonding oonductor is attached in an approved manner in accordance with NEC and the <br /> point of attachment for the bonding conductor is accessible. <br /> • Bonding/grounding clamp used is listed to UL 467 or other accepcable national standards. <br /> • T'he bonding clamp is attached at one point within the piping system to a segment of rigid <br /> pipc or a pipe component such as a nipple, fitring or manifold providod it is manufactured <br /> with an appropriate and Code listed material. The bonding clamp must bc attached such that <br /> metal to metal contact is achieved with thc stecl pipc component. Removc any paint or <br /> appiied coating on thc pipe surface beneath the clamp. See Figures 1 and 2 for guidance. The <br /> corrugated stainless steel tubing portion of the gas piping system shall not be used as the <br /> point of aitacliment of the bonding clamp at any location along its length. <br /> Released On: 9/ 3/2008 <br /> I <br /> Scanned by CamScanner <br />