Grave concern of 'grounding' user for capacity coupling. Interesting how marketing shows insulated gloves with leather protectors on worker yet manufacturer's instructions dictates grounding of user in some cases (250 volts and less I believe). Ghost voltage is one concern. Don't make the user a ghost.
What about stored energy, as in the case of capacitors in much of the new equipment. Can't use a capacitor to measure a capacitor, requires inductive or resistance devices.
NFPA 70E phase/phase and ground/phase testing to ensure absence of voltage. Can't be used in that task. Like all proximity testers it is a pretense of voltage indicator not an absence of voltage tester/meter. Knowing the limitation of all test instruments is key to worker safety.
Robert S LeRoy CESCP CUSP February 26 2019, 1:22 am EST
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