15
There is a grounding hole with 4.2 mm diameter on the edge side closer to the middle of the back frame of
the Modules. The middle line of the grounding mark is overlapped with the grounding hole, and the
direction is same as the longer frame.
The grounding between Modules must be approved by qualified electrician. And the grounding device must
be produced by qualified electrical manufacture. The recommended twist torque value is 2.3 N.m. A copper
core in size of 12 AWG can be used as grounding clamp. The copper wire should not be compressed during
the installation.
Figure 6: Installation Methods
Note: The figure above is using TYCO. 1954381-1 (recommended)
7.2. Grounding by Using Unused Mounting Hale
The existing Mounting holes which have not been used can be used for grounding.
A)
Direct the grounding damp to the mounting hole on the frame. Thread the grounding clamp and the
frame with grounding bolt.
B)
Put the toothed gasket into the other side, than tighten and lock the nut. The recommended torque of
locking the nut is 2.0 N•M-2.2 N•M.
C)
Thread the grounding clamp with grounding wire. The materiel and size of grounding wire & should meet
the relevant requirement of the national, regional and local rule, law and standard.