INTRODUCTION
AFS has extensive experience ENGINEERS in Electrical testing and commissioning.
Our test and commissioning engineers have the specialist skills and qualifications to carry out the required testing and inspection requirements The tests includes but not limited to following:
1. ELECTRICAL WIRING CONTINUITY TESTING.
All wiring system shall be tested for continuity of circuits, short circuits and earthing after wiring is completed and before energizing.
2. ELECTRICAL INSULATION RESISTANCE TESTING.
The insulation resistance shall be measured across earth and the whole system of conductors, or any section thereof, with all fuses in place and all switches closed and except in concentric wiring all lamps in position of both poles of the installation otherwise electrically connected together.
A direct current pressure of not less than twice the working pressure provided that it does not exceed 660 V for medium voltage circuits. Where the supply is divided from AC three phase system, the neutral pole of which is connected to earth, either direct or through added resistance, pressure shall be deemed to be that which is maintained between the phase conductor and the neutral.
3. ELECTRICAL EARTH CONTINUITY PATH TESTING.
The earth continuity conductor metallic envelops of cables, shall be tested for electric continuity and the electrical resistance of the same along with the earthing lead but excluding any added resistance or earth leakage circuit breaker measured from the connection with the earth electrode to any point in the earth continuity conductor in the completed installation shall not exceed one ohm.
4. ELECTRICAL TESTING OF NON-LINKED SINGLE POLE SWITCHES.
In a two wire installation a test shall be made to verify that all non linked single pole switches have been fitted in the same conductor throughout, and such conductor shall be labeled or marked for connection, throughout, and such conductor shall be labeled or marked for connection to an outer or phase conductor or non earthed conductor a test shall be made three or four wire installation a test shall be made to verify that every non linked single pole switch is fitted in a conductor to one of the outer or phase conductor of the supply. The entire electrical installation shall be subject to the final acceptance of the Supervising engineer as well as the local authorities.
5. ELECTRICAL EARTH RESISTIVITY TESTING.
Earth resistivity test shall be carried out in accordance with British Standard Code of Practice of Earthing. All tests shall be carried out in the presence of the Supervising Engineer.
6. ELECTRICAL PERFORMANCE TESTING
The complete electrical installation and equipment shall be subject to the final performance test as intended for each and every equipment shall be tested as per the manufacturers instructions.