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Periodic Testing Schedule
Protective conductors continuity Between the earth terminal of distribution boards to the following exposed-conductive parts:
Bonding conductors continuity
Ring circuit continuity Where there are proper records of previous tests, this test may not be necessary. This test should be carried out where inspection documentation indicate that there may have been changes made to the ring final circuit
Insulation resistance If tests are to be made:
Polarity At the following positions:
Earth electrode resistance Test each earth rod or group of rods separately, with the test links removed, and with the installation isolated from the supply source.
Earth fault loop impedance At the following positions:
Functional tests RCD's Testing the operation of all functional switches, including light switches, switched fuse spurs, socket switches, if fact any switch that serves a purpose. The test button on all RCD's is also checked.
Circuit breakers, isolators and switching devices Manual operation to prove that the devices disconnect the supply.
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