Page 58 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

TASK 3: Testing of Electrical wiring and connecting to main supply service line
1 As per IE rules, a tests are to be conducted on completed Electrical wiring before connecting to the main
supply service line.

2 Conduct the continuity test of wiring with multi meter/test lamp by closing all switches and shorting all light
points & socket points.
3 Conduct short circuit test of wiring with multi meter/test lamp by keeping all switches OFF and all light points
& socket points open.
4 Conduct earth continuity and earth leakage test of wiring with megger.
5 After satisfactory test results connect the electrical wiring supply mains through the protective fuse & MCB’s.
6 Test all the electrical points, socket points for working condition.

Safety precautions
1 Use proper and insulated tools.
2 Maintain proper dimensions between each electrical point.
3 Fix the conduits, casing and electrical accessories tightly.
4 Never make joints in electrical wiring.

5 Never connect the wiring to the supply mains without conducting tests.

Short circuit test

Insulation resistance test between conductors

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CITS : Power - Electrician & Wireman - Exercise 21