Category Archives: Safety

Preparing for Absence of Voltage Testing

Electrical Testing Safety – Part 1 Before you take a single measurement: Will you be troubleshooting or testing for the absence of voltage? What tools will you use to verify the energized or de-energized state? What Personal Protective Equipment (PPE) … Continue reading

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Test Before You Touch

An overview of the deenergized and ‘test before you touch’ processes. Part of ESFI’s Never Assume Electrical Safety Series – A must for anyone working with or near electricity. Watch the video: Test Before You Touch by EFSi More ‘Test Before You … Continue reading

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Stray Voltages

Stray or ghost voltages occur from capacitive coupling between energized circuits and non energized, non connected adjacent wiring. Because of this coupling effect and the multimeter’s high impedance, it’s not always possible to determine if the circuit under test is … Continue reading

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