1) What does AVI stand for a) approved verifying indicator b) authorised voltage indicator c) approved voltage indicator d) applied voltage indicator 2) What is the first step of safe isolation a) turn off b) test for dead c) ask permission d) start work 3) test leads of your AVI should be to what standard? a) GS38 b) GS98 c) GP33 d) GP87 4) Your AVI can be checked for correct operation on a proving unit or known live supply? a) false b) true 5) failure to carry out safe isolation could lead to electrocution a) true b) false 6) carrying out safe isolation could cause a inconvenience to staff of the building a) true b) false 7) testing for dead on a single phase circuit means carrying out how many tests? a) 1 b) 6 c) 5 d) 3 e) 10 8) Carrying out safe isolation for a 3 phase circuit means carrying out how many tests? a) 1 b) 10 c) 3 d) 40

Safe isolation lcb

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