Energy Guide

Page 24 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
18.1 A current-carrying part shall be silver, copper, a
copper alloy, or other material acceptable for the
application.
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18.2 Ordinary iron or steel that is provided with a
corrosion-resistant coating is not prohibited from
being used as a current-carrying part in
accordance with the following:
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a)When acceptable in accordance with 6.1.1; or
b)Within a motor or associated governor, but the
use of ordinary iron or steel for current-carrying
parts elsewhere in the appliance is not acceptable.
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18.3 An uninsulated live part shall be secured to the
surface on which it is mounted, and supporting
insulating materials shall be secured in place, so
that the part is prevented from turning or shifting in
position when spacings are reduced below the
minimum values specified in Spacings, Section 30.
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18.4 Friction between surfaces is not acceptable as a
means to prevent shifting or turning of a live part. A
toothed lock washer with spring take-up, applied as
intended, is acceptable.
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19 Internal Wiring – Electrical Connections P
19.1 The internal wiring and connections between parts
of an appliance shall be protected or enclosed in
accordance with 19.2.
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19.2 Internal wiring, consisting of individual insulated
conductors either separate or in a harness, and
electrical connections are considered to be
acceptably protected when either of the following
apply:
a)When judged as though it were film-coated wire,
the wiring complies with 10.1.1; or
b)Even though it could be touched by the probe
specified in 10.1.1, the wiring is secured so that it
cannot be grasped or hooked in such manner that
it or related electrical connections are subjected to
undue stress.
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