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More Meaningful Connections
7 WHITE PAPER – VeriSafe Absence of Voltage Tester–Improving Eciency and Reducing Costs
NFPA 70E
One of the major changes to the 2018 edition of NFPA 70E involves the new requirements that allow
an installed AVT to be used instead of a hand-held voltage tester. When the VeriSafe
™
AVT is used in
conjunction with a Lockout/Tagout Program, it meets the requirements for the process described in
NFPA 70E-2018 Article 120.5:
Exception No. 1: An adequately rated permanently mounted test device shall be permitted to be used
to verify the absence of voltage of the conductors or circuit parts at the work location, provided it
meets the following requirements:
a) It is permanently mounted and installed in accordance with the manufacturer’s instructions and
tests the conductors and circuit parts at the point of work
b) It is listed and labeled to verify the absence of voltage
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c) It tests each phase conductor or circuit part both phase-to-phase and phase-to-ground
d) The test device is verified as operating satisfactorily on any known voltage source before and after
verifying the absence of voltage
Figure 3. Comparison of the VeriSafe AVT and portable device testing methods.
Open
Panel
Activate the VeriSafe
™
AVT
Test
the
Tester
Verify
Installation
Verify
Installation
Retest
the
Tester
Check
for
Voltage
Select
Tester
Test
the
Tester
Retest
the
Tester
Perform
Work
Check
for
Voltage
VeriSafe
™
Absence of
Voltage Tester
Portable Testers
Possible Exposure to Electrical Hazards
Automatically Performed in Sequence
No Exposure to Electrical Hazards