Check it is safe to isolate the supply, Select an approved voltage indicator and proving unit, Prove the tester on a known source, Identify the correct supply, MCB, fuse or fused spur, Switch off the supply, Lock off and label the supply, Test dead at the appliance, Test between L-N, L-CPC and N-CPC, Re-prove the tester on the proving unit.

Safe Isolation

만든이
인쇄
퍼가기

순위표

비주얼 스타일

옵션

템플릿 전환하기

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