Cable Entry
PCB
Peg Holes
9B.1 PCB cable Entry holes
Note:
If you are assembling the transformer and mains terminal block.
1. Check that the outside of the bottom metalwork has a clear
non-contaminated area for the head of the earthing /
grounding screw.
2. Mount the terminal block on the metalwork.
3. Carry out a high current (less than 25Amps) resistance check
between the metal work and the Earth / Ground terminal
block. The resistance must be less than 0.1 Ohms
(Deduct the resistance of the meter / tester leads)
Ensure the star / washer is
placed under the earthing /
grounding screw
Page 22
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