5.0 INSPECTION AND TESTING Inspection and wiring test in wiring installation • Visual inspection • Polarity test • Continuity test • Insulation test • RCCB test • Earth fault Loop test • Earth Resistance test 101
Visual Inspection Understand the purpose of visual inspection • The purpose of the visual inspection for installation is done so that each case relating to the installation comply with the will of the local expert or MS IEC 60364 regulations , TNB and JKR does not apply in addition to ensuring the physical disability and overall installation devices . This visual inspection done before all examinations let conducted • To ensure the materials and tools are installed by an expert or by passing SIRIM Objective vision inspection upon installation 102
Polarity test Understand the purpose of polarity test • It is intended to ensure polarity connection at any electrical accessories and tools are in the right place. Objective polarity test upon installation 103
Continuity test Understand the purpose of continuity test • It is intended to ensure that each conductor has a transmissivity along the circuit. • Test protective conductors, including main and supplementary bonding conductor. • It is intended to ensure that it is connected properly and effectively . Objective continuity test upon installation 104
Insulation test Understand the purpose of insulation test • Insulation Resistance Test • It is intended to ensure that the insulation resistance between conductors and between conductors and earth resistance does not apply any leakage or short circuit. • In short, to ensure that there is no short circuit in the installation. Objective insulation test upon installation 105
RCCB test Understand the purpose of RCCB test • Test Operations To Earth Leakage Circuit Breaker • It is intended to ensure the effective operation of earth leakage circuit breaker earth leakage current when applicable Objective RCCB test upon installation 106
Earth fault Loop test Understand the purpose of earth fault loop test •Test damage to the earth loop impedance •It aims to determine the earth loop impedance in an installation to determine the type of earth leakage protection appropriate to use. Objective earth fault loop test upon installation 107
Earth resistance test Understand the purpose of earth resistance test •Test earth electrode resistance. •It is carried out if the earth loop impedance test readings higher than the limit. •Also test the continuity of the earth electrode has been installed. Objective earth resistance test upon installation 108
109 ELECTRIC WIRING : Kursus Terlanggan (PSH) e ISBN 978-967-0055-51-0 9 789670 055510 Politeknik Sultan Abdul Halim Mu'adzam Shah (online)