Laserfiche WebLink
_i <br /> �. <br /> t�tra:tr:r�.r�. <br /> . ,z< �a, w�a r���rux�,g <br /> f.. : � u 7 ca��ok sc <br /> I3lossburg.PA 16912 <br /> -;;;,lp;,'.�;•: TeL•(570)638-2131 <br /> ��..•�I pax:(570)638-3410 <br /> count the steps you ..�.v.Waran.:x.� <br /> save with WARDFLEX. <br /> Technical Bulletin:#WF2008-1 <br /> WARDFLEX�CSST Electrical Bonding <br /> This technical bulletin superscdes all prior documents relating to thc electrical bonding of <br /> WARDFLEX�CSST gas piping system and dcfincs the mandatory manufacture's requircments for <br /> diiect bonding. <br /> Direct bonding is required for s11 natural and LP gas piping systems incorporating WARDFLEXm <br /> CSST�vhether or not the piping system is conncctod to an electrically powerod gas appliance• Diicct <br /> bonding is included as part of thc manufacture's requircmcnts for both single family and multi-family ! <br /> , buildings. A person l:nowledgeable about elcctrical system design,local electrical code,and these <br /> nequir�ements should specify the bonding for commercial applications. <br /> ' WARDFLEX� CSST installed inside or attachcd to 1hc exterior of a building or structure shall be <br /> electrically continuous and dinectly bondcd, by a qualilied person, to the ground system of the <br /> � building. The gas piping is oonsiderad to be directly bonded when installed in acoordance with the <br /> . following instructions: <br /> � . A bonding jumper is permanently and direcdy connected to the eleclrical 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 /> (where 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 utility meter I <br /> or sccond stagc rcgulator(LP systcros),but ncar thc gas scrvicc cntrancc(cithcr outdoors or <br /> I indoors) of the structure, or downstream of the gas meter of each individual housing unit <br /> within a multi-family structure. A "dairy chain"configuration of the bonding conductor is <br /> permitted for multi-meter installations. A bonding connection shall not be made to the <br /> underground,natural gas 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 acc:ordance with the NEC. <br /> . The bonding conductor is aitached in an approved manner in accordance witl►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 /> . The bonding clamp is attached at one point within the piping system to a segment of rigid <br /> pipe or a pipe component such as a nipple, fitting or manifold providod it is manufactuned <br /> wlth an appropriatc and Codc listed material. The bonding clamp must be attached such that <br /> metal to metal contact is achieved with the steel pipc component. Remove any paint or <br /> applied coating on thc pipe surface beneath the clamp. See Figures 1 and 2 for guidance. The <br /> corrugated stainless stcel tubing portion of the gas piping system shall not be used as the <br /> point of attachment of the bonding clamp at any location along its length, <br /> Released On: 9/ 3/2008 <br /> Scanned by CamScanner <br />