Feature

Using absence of voltage testers during maintenance

Electrical enclosures commonly found in industrial facilities can contain high voltages, ranging from 110 or 220 line voltage to many hundreds of volts. Regulations covering these enclosures require the verification of an absence of high voltages inside before any updates, repair, or maintenance work can begin.

01/12/2021 10:24:39

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This requires operators to put on bulky personal protection equipment before turning off power to
the enclosure and opening the door. The operator must then go through a manual process of
testing the internal voltages. The test equipment must undergo a self-test before and after verifying the absence
of voltages. Only then can the operator begin maintenance on the enclosure. This is a time-consuming
and error-prone procedure that must be repeated for each enclosure.

Read the full article in DPA's December issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.