8/19/2019 TABLE T 3

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 TABLE T 3 :- Testing to be carried out where practicable on existing installations.

 TEST Protective onductors ontinuit! Between the earth ter"inal o# distribution

boards to the #ollowing exposed conductive parts. $ Soc%et &utlet earth

connections '(ote )* $ Accesible exposed conductive parts o# current using

e+uip"ent and accessories ' (ote ) , * Bonding onductors ontinuit! $ All "ain

bonding conductors. $ All necessar! supple"entar! bonding conductors. ingircuit ontinuit! /here there are proper records o# previous tests0 this test "a!

not be necessar!. This test should be carried out where inspection1docu"entation

indicate that there "a! have been changes "ade to the 2nal ring circuit. nsulation

esistance # tests are to be "ade $ Between live conductotrs0 with phases and

neutral connected together0 and earth at all 2nal distribution boards. $ At "ain and

sub "ain distribution panels0 with 2nal circuit distribution boards isolated #ro" the

"ains. '(ote 4* Polarit! At the #ollowing positions $ &rigin o# the installation $

5istibution boards $ Accesible Soc%et &utlets. $ Extre"it! o# adial ircuit. ' (ote 6

* Earth Electrode esistance Test each earth rod or group o# rods separatel!0 with

the test lin%s re"oved0 and with the installation isolated #ro" the suppl! source.

Earth 7ault loop i"pedance At the #ollowing positions $ &rigin o# the installation. $

5istibution boards. 3.8 7ixed Electrical nstallations $ Accesible Soc%et &utlets. $

Extre"it! o# adial ircuits. '(ote 9 * 7unctional Tests 5s0 ircuit Brea%ers0

solators and all Switching 5evices Tests as re+uired b! egulation 6;3-;3-- ;* The person carr!ing out the testing is re+uired to decide which o# the

above tests are appropriate b! using their experience and %nowledge o# the

installation being inspected and tested and b! consulting an! available records. 8*

/here sa"pling is applied0 the percentage used is at the discretion o# the tester.

?owever0 a percentage o# less than ;