Table 8.13 - Sequence of periodic testing
1
Continuity of protective conductors and earthed equipotential bonding.
2
Polarity
3
Earth fault loop impedance
4
Insulation resistance
5
Operation of switches and isolators
6
Operation of residual current devices
-
together with the following where appropriate
-
7
Continuity of ring final circuit conductors
8
Earth electrode resistance
9
Manual operation of circuit breakers
10
Electrical separation of circuits
11
Insulation resistance of non-conducting floors and walls

Extracted from The Electricians Guide Fifth Edition
by John Whitfield

Published by EPA Press
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