Automation Canada - Cables & Connectors Issue - 41

PERMANENTLY MOUNTED TEST DEVICES IN STANDARDS &
REGULATIONS
Best practice for verifying the absence of voltage is described in the
CSA Z462. CSA Z462 has requirements for verifying the absence of
voltage with portable test instruments (4.2.5(g)) and permanently
mounted absence of voltage testers (4.2.5(g) Exception 2). Presently,
the 2018 edition of Z462 states that permanently mounted absence of
voltage testers can be used in conjunction with a portable test
instrument. However, in the upcoming 2021 edition, CSA is expected
to revise Z462 to allow Absence of Voltage Testers to be used to verify
an electrically safe work condition in lieu of a portable test instrument.

voltage source before and after verifying the absence of voltage "
Notes: 1) For additional information on rating and design
requirements for permanently mounted absence of voltage testers,
refer to UL 1436, Outlet Circuit Testers and Other Similar Indicating
Devices.
COMPARISON OF DEVICES AND CAPABILITIES
The VeriSafeā„¢ AVT is Unique
It combines voltage presenceindicators with
absence of voltage testing te
technoloogy.

" CSA 462 4.2.5
Process for Establishing and Verifying an Electrically Safe Work
Condition
2021 CSA 462 DRAFT POSTED FOR PUBLIC REVIEW IN MAY
2020:
(g) Use an adequately rated portable test instrument to test each
phase conductor or circuit part to verify the absence of voltage. Test
each phase conductor or circuit part both phase-to-phase and
phase-to-ground. Before and after each test, determine that the test
instrument is operating satisfactorily through verification on any known
voltage source.
Exception 2): An adequately rated permanently mounted absence of
voltage tester may be used to test for 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 for the purpose of verifying the absence of
voltage
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
C A N A D I A N A U TO M AT I O N

Red indicates
voltage presence

Green indicates
absence of voltage

VeriSafeā„¢ AVT

Voltage Indicator

Test Portal

Indicates presence of voltage

*requires a portable
test instrument and
conversion

Built-in known voltage source
Tests for absence of voltage

*CSA Z462 4.2.5
requires a portable
*requires a portable
test instrument
test instrument &
& known voltage
known voltage
source

source

Verification tester is in contact
with the test point
Keeps hazardous voltage off the
door
Diagnostic codes provide
intelligence
Built-in overcurrent protection
Automatically self-calibrates
UL listed and labeled for verifying
the absence of voltage (UL 1436)
Meetsthethe
requirements
to the
verify
Meets
requirements
to verify
absence
of voltage
describeddescribed
in CSA Z462
the absence
of voltage
4.2.5
Exception
2
in NFPA
70E 120.5(7)
Exception 1

VOLUME 3, ISSUE 2

41



Automation Canada - Cables & Connectors Issue

Table of Contents for the Digital Edition of Automation Canada - Cables & Connectors Issue

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