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2.5 System Electrical Grounding <br /> Array Grounding Lug <br /> The QRail system is listed to UL 2703 with the Burndy/Wiley WEEB-Lug 8.0 as the means <br /> to connect the QRail array to the system ground electrode. It is the system installer's <br /> responsibility to determine the appropriate wire size for grounding the array. <br /> To ease and facilitate the process of bonding and grounding the array, it is recommended Image 2.5.1 <br /> thatthese steps are accomplished afterthe roof attachments and rails are in place prior WEEB Lug 8.0 <br /> to module installation. The Burndy WEEB-Lug 8.0 is a special, preassembled lay-in lug <br /> designed specifically for use in bonding the array segments (module rows) C <br /> electrically and for connecting the bonded array to ground. The WEEB-Lug 8.0 is b <br /> shown in Image 2.5.2: <br /> a Lug a <br /> b WEEB 8.0 d <br /> c Wire capture bolt e <br /> d M8x20 T-head bolt <br /> e M8 serrated flange nut ' <br /> When the PV modules are properly installed, the QRail QClick bonding clamps <br /> ensure that all the exposed metal parts and the module frames in each module <br /> row or array segment are integrally electrically connected (bonded) with a high- Image 2.5.2 <br /> ampacity bond. Each module row must also be connected to ground through the WEEB Lug 8.0 components <br /> system ground electrode. This is accomplished by using WEEB-Lugs to bond each of the <br /> array segments or module rows together and for connecting the entire array to the ground <br /> electrode. This arrangement is shown in Image 2.5.3. <br /> It is the installer's responsibility to determine the correct wire type, size, and temperature <br /> rating forthe particular array. The wire sizes and capacities, which can be accommodated J <br /> by the WEEB-Lug 8.0, are shown in Table 2.5.1 on the next page. <br /> NOTE! <br /> The QRail QSplices have been evaluated and listed to UL 2703; <br /> therefore, a spliced rail can be treated as a single solid rail. <br /> Additional WEEB-Lugs or bonding jumpers are not required for <br /> spliced rails. <br /> When using aWEEB-Lug 8.2 see our Supplemental for info on <br /> www.quickmountpv.com <br /> Image 2.5.3 <br /> Array bonding connections at each <br /> module row <br /> B1 7.2.3-46 12 Jul-2019, Rev 4.2 <br />