Energy Guide

Page 21 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
a)Subjecting the supply cord or lead to mechanical
damage;
b)Exposing the supply cord or lead to a
temperature higher than that for which it is rated;
c)Reducing spacings (such as to a metal strain-
relief clamp) below the minimum required values;
or
d)Damaging internal connections or components.
P
15.2.5 When a knot in a flexible cord serves as the strain
relief, the surfaces that the knot touches shall be
free from projections, sharp edges, burrs, fins, or
similar edges that damage the conductors.
P
15.3 Bushings P
15.3.1 A bushing or the equivalent shall be provided at a
point where a flexible cord passes through an
opening in a wall, barrier, or enclosing case. The
bushing shall be substantial, secured in place, and
shall have a smooth, well-rounded surface against
which the cord may bear. An insulating bushing shall
be provided when:
P
a)The cord is Type SP-1, SPT-1, SP-2, or SPT-2,
or other type lighter than Type SV;
b)The wall or barrier is of metal; and
c)The construction is such that the cord is
subjected to stress or motion.
P
15.3.2 Ceramic materials and some molded compositions
are acceptable for insulating bushings.
N/A
15.3.3 Vulcanized fiber is not prohibited from being
employed if the bushing is not less than 1.2 mm
(3/64 inch) thick, and if formed and secured in
place so that it is not damaged by conditions of
ordinary moisture.
P
15.3.4 A separate soft-rubber, neoprene, or polyvinyl
chloride bushing is not prohibited from being
employed in a fan, or in the frame of a motor, or in
the enclosure of a capacitor attached to a motor of
an evaporative cooler, or a room-type filter unit if
the bushing is:
P
Located so that it is not exposed to oil, grease, oily
vapor, or other substances that deteriorate the
compound employed.
P