Helios 6T Series, Operation/Maintenance And Installation, Page: 21 / 27

INSTALLATION MANUAL – 2012
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HUSA-EN-UL-REV 2.0 APR 16 2012
Metal containing iron in the conductive connection should be treated against corrosion by anodization,
spray-painting, or galvanization to prevent rusting and corrosion. Another method is to ground the frame of
the module to racking structure in accordance with NEC requirements for grounding solar electrical
systems.
Alternative Method:
UGC-1 + WEEBlug 6.7 used in conjunction with SolarMount rails from UNIRAC
UGC-1 grounding clips are used to create grounding path between the module frame and the UNIRAC rail.
WEEBlug 6.7 assemblies are designed for use with size 6-12 AWG copper conductor wire, and allow
connecting the system to equipment ground connector
UGC-1 grounding clips should be preassembled with top mounting clamps in order to reduce the possibility
of losing parts during installation. When installing the modules, slide the assemblies into the mounting slot
of rails (UGC nibs should be aligned under the edge of the module for proper installation and torque the
modules in place on top clip upright. Nibs will penetrate rail anodization and create a grounding path
through rail.
The layout for the UGC-1 grounding clips depends on the number of modules by row. For an even
number, two clips are used between each pair of modules. For an odd number, refer to the following
picture where “X” denotes places to install the clips: