Appendix A: Alternative Grounding Methods - RBI UL 2703 Installation Manual

A P P E N D I X A : A L T E R N A T I V E G R O U N D I N G M E T H O D S
Dynobond Module Jumper Installation
The module jumper can bond one row of modules to another row of modules without the need of additional
grounding lugs and copper wire. The teeth on the clamps bite into the module frame penetrating the anodized
surface. It requires no tools and can slide on either the long or short side of the module frame. For SolarWorld
modules, the module jumper must be installed on the short side of the module frame.
Alternate Rail-to-GEC Grounding at Ends
Aside from the WEEB-Lug-8.0, the Ilsco GBL-4DBT lug can be used as an approved grounding lug.
0.196" drilled hole in RBI Solar VS-R Rail
Tin-coated copper Ilsco GBL-4DBT lug
No. 10 304 SS split lock washer
10-32x0.75 304 SS HH bolt
(tighten to 35 in-lbs)
RBI Solar RS-VS | IG 2017
10-32 304 SS hex nut
No. 10 304 SS star washer
Ilsco DE-OX oxide inhibitor
Ilsco DE-OX oxide inhibitor
¼-28 304 SS set screw
(tighten to 35 in-lbs)
10-14 AWG, Cu, solid
4-8 AWG, Cu, stranded
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