you are given normally a fluke, megger and possibly a metrel multifunction tester. Do NOT use these for safe isolation.
Do not start with the same continuity tests as if it possibly is taking out the cb then continuity would show as ok, wouldn't it?
read the descriptor, step, back and think...
you are given at least 3 major brand multifunction testers.
all the AM2 installations are identical.
the fault finding is done as follows:
1 the assessor is told what fault to switch on, you cannot see the switch.
2. you are given a description of a fault ie: the breaker trips when the central...
operating the switches is so that you are testing all of the circuit and not just up to the switch. SY is not a departure. regards An ex AM2 assessor.
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you test up to the boiler mains feed, as with all the others. Regards Ex AM2 Examiner.
An open circuit is where there is a break in the conductor and a short circuit is where a live and earth are touching or live and neutral etc ie where the electricity is not taking the correct path but a SHORTER circuit.
1. from the furthest point
2. also crossed connections, usually on the cat 5. you will get IR faults.
3. any sleeving if available or tape.
I used to be an AM2 assessor so be open minded.
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