PanelClaw Polar Bear III HD 5 Degree, Руководство по установке

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Polar Bear III HD 5 Degree Installation Manual
9910034 Rev F
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Appendix C: UL 2703 Electrical Grounding
The Polar Bear III HD 5 Degree flat roof system may be used to ground and/or mount a PV module
complying with UL1703 only when the specific module has been evaluated for grounding and/or
mounting in compliance with the included instructions. For a list of modules which have been evaluated
see
PanelClaw’s “PB3 HD UL Overview and Module Listing” (available at www.panelclaw.com ).
A periodic re-inspection of the system shall be performed for loose components, loose fasteners, and
any corrosion. If found, they should be immediately replaced or remedied in accordance with the
system installation instructions.
System Ground Path
The system ground path follows through the Tyco lug, Ballast Tray, Support, Claw and into the module
frame (see
Figure 12 ). The module frame’s anodization is broken via the through -bolt connection at the
module mounting holes, which is secured with a serrated flange nut. The bonding continues through the
module frame to the adjacent Claws as shown below.
Figure 12 System Ground Path with UL2703 Listed Module
To DC
Grounding Path
Ground Lug
Tyco #2106831-1
Bonding path from Lug to System
Ground Path
through Support
Typical: North-South Module to Module
Bonding Path
Ground Path through
Ballast Tray
Typical: East-West Module to Module Bonding Path