Polar Bear III HD 5 Degree Installation Manual
9910034 Rev F
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Appendix D: Electrical Grounding (UL 2703 not applicable)
The Polar Bear III HD 5 Degree flat roof system must be electrically bonded to the other DC grounding
paths.
System Ground Path
The system ground path follows through the Module to the Tyco lug into the ballast tray via a solid #12
or #10 AWG Cu bonding jumper. The conductor size should be selected in accordance with NEC 690.45
and NEC 250.122. The ballast tray is bonded to the Support, and Claw. (See
.
Figure 14 System Ground Path
To DC
Grounding Path
Ground Lug
Tyco #2106831-1
Bonding path from Lug to System
