According to the NFPA 70E, when are noncontact test instruments permitted to be used to verify absence of voltage in circuits less than 1000 volts?
70E doesn't specify test equipment type (contact/non-contact).
110.2(A)(1) covers electrical safety training, & gives the definition of a "qualified person".
120,4(B)(6)(1) Lockout/Tagout Procedures/Testing mentions testing before and after use (live-dead-live).
The key would be to check the minimum voltage that your non-contact instrument will detect. I have one by Flir that is rate 24-1000 V AC. Whereas my Fluke is rated 90 - 1000V AC. So with the Fluke I can't guarantee that there's less than 50 volts present.
Dewayne, I want to take a moment and thank you for your reply. What I was kind of fishing for in my original question was relative to NFPA 70 Article 120.5(7), which does specify a test instrument capable of testing phase to phase, phase to ground, and verifying on a know voltage source. Non contact instruments are not capable of verifying absence of voltage. Exception No. 2 does however does permit the use of a non contact instrument on systems over 1000 volts.
Now I want to jump to Art 130.7(E)(4) which covers alerting techniques and cutting, removing or rerouting of conductors.
"...additional steps to verify absence of voltage or identify the conductors shall... now the informational note includes the the use of a non contact instrument as an additional means to verify absence of voltage.
Am I to assume that a non contact test instrument is required to test for absence of voltage and then a non contact instrument could be used as an additional means of verifying absence of voltage prior to cutting, removing, etc?
I'm out of the office for some training, & don't have the 70E with me (I almost brought it). I will look over it Friday when I'm back at work.
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