The key point of any type of voltage indicator is to act as a warning device.
" All persons must be trained in the use and limitations of any meter, instrument, tester or method" when used to establish an electrically safe work condition. I am paraphrasing OSHA.
By definition the qualified worker will select the correct method(s) and equipment. I would no sooner take my 135kV rated hot stick meter on a residential job, than my 600 volts rated direct contact amp meter into the substation, unless I know where to stick it>
The worker who knows the correct usage and understands, as the comments suggest, the limitations of any approach will be the ones who work safely around and on any voltage.
My collection of vintage voltage sensing devices scares me when I see what we are using now, and I understand what it was like to trust your life on what we had.
Best bet " if it ain't grounded, you will be. Touch before test is the best.
David Hatton March 3 2019, 6:47 pm EST Reply to this comment |