Last revised: May 17, 2013
12
Chapter
Chapter
Chapter
Chapter 4
44
4 Installation
Installation
Installation
Installation----grounding, wir
grounding, wir
grounding, wir
grounding, wiring, limitation of connection
ing, limitation of connection
ing, limitation of connection
ing, limitation of connection
4.1 Grounding (Negative)
Two grounding methods can be used to provide a path to ground.
1.
Using Zep certified component – Ground Zep
and/or
2.
Grounding holes – BenQ Solar PV modules have a clearly marked grounding hole on
each side of the frame for inserting the ground contact. The grounding screw and bolt
are separate from the mounting parts of the module.
The Ground Zep is UL and ETL Listed to UL467 and is UL Listed to UL2703. To use
Ground Zep:
1.
Insert a Ground Zep in the Zep Groove of any module around the array perimeter.
Start with the set screw at 9 o’clock position (pointing left).
2.
Use either the Zep Tool or the Flat Tool (shown below) to lock the Ground Zep into
place by turning 1/4 turn clockwise. After the Ground Zep is turned 90 Degrees, the
set screw should be pointing straight up. (This locks the Ground Zep into the Zep
Groove and creates a solid ground bond with the module frame.)
Figure
Figure
Figure
Figure 3
33
3----10
10
10
10: Ground Zep Installation
: Ground Zep Installation
: Ground Zep Installation
: Ground Zep Installation
3.
Insert solid cooper ground wire into the ground wire retention slot and turn the set
screw with a flat-bladed screw driver until the ground wire is captured by the set screw.
To fully secure, torque the set screw as follows:
Wire Size (AWG)
Wire Size (AWG)
Wire Size (AWG)
Wire Size (AWG)
4 – 6
8
10 - 14
Torque (in
Torque (in
Torque (in
Torque (in----lbs)
lbs)
lbs)
lbs)
50
45
40
