OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 40 Utility Workers – Electrical

Explanation of Rules Referenced from the ECUC, Second Edition

Rule 4-116 Capacitor banks

Subrule 4-116(1)

Waiting five minutes allows the capacitor to discharge its stored energy, eliminating the possibility of an arc forming when the grounds are applied.

Subrule 4-116(2)

Short circuiting or grounding an isolated capacitor protects workers from a discharge should they need to contact the capacitor’s terminals, jumpers or conductors during work activities.