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Periodic Testing Schedule

Protective conductors continuity Between the earth terminal of distribution boards to the following exposed-conductive parts:

  • Socket outlet earth connections
  • Accessible exposed-conductive-parts of current using equipment and accessories

 

Bonding conductors continuity

  • All protective bonding conductors
  • All necessary supplementary bonding conductors

 

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:

  • Between live conductors, with line(s) or neutral connected together, and earth all all distribution boards
  • At main and sub-main distribution panels, with final circuit distribution boards isolated from mains

 

Polarity At the following positions:

  • Origin of the installation
  • Distribution boards
  • Accessible socket outlets
  • Extremity of radial circuits

 

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:

  • Origin of the installation
  • Distribution boards
  • Accessible socket outlets
  • Extremity of radial circuits

 

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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