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Electrical safety demands a precise answer to the question “Is voltage present?”
Posted on Thursday Sep 07, 2017 | loto, nfpa70e, voltage-indicator,
Keeping personnel away from live voltage is foundational to electrical safety. Thru-door voltage indicators provide visibility of voltage from outside the enclosure without exposing personnel to voltage. Workers performing mechanical LOTO must isolate electrical energy. An externally-mounted voltage detector provides a means to check voltage inside an electrical panel. Without a voltage indicator, a mechanic performing mechanical LOTO would be required to work in tandem with an electrician using a voltmeter to physically verify voltage inside an electrical panel. In this case, the electrician is exposed to voltage. With thru-door voltage detectors, the mechanic can verify zero electrical energy without any exposure to voltage.... {Read More}