Energy Guide

Page 89 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
75 Tests for Fans for Unattended Areas P
75.1 A fan for use in unattended areas shall comply with
the tests described in Sections 178 and 179Ai.
P
76 Dielectric Voltage Withstand Test P
76.1 Each appliance shall withstand without electrical
breakdown, the application of a AC or DC potential
as indicated in Table 76.1 as follows:
P
a)Between the primary wiring, including connected
components, and accessible dead metal parts that
are capable of becoming energized; and
P
b)Between primary wiring and accessible low-
voltage (42.4 volts peak or less) metal parts,
including terminals.
P
76.2 This test shall be conducted in accordance with
either condition A or condition B of Table 76.1.
P
76.3 The appliance is to be in either a heated or
unheated condition for the test.
P
76.4 The test is to be conducted when the appliance is
fully assembled. It is not intended that the
appliance be unwired, modified, or disassembled
for the test.
P
76.5 The test equipment is to include a transformer
having an essentially sinusoidal output, a means of
indicating the test potential, an audible or visible
indicator of electrical breakdown, and either a
manually reset device to restore the equipment
after electrical breakdown or an automatic reject
feature of any unacceptable unit.
P
76.6 When the output of the test equipment transformer
is less than 500 volt-amperes, the equipment shall
include a voltmeter in the output circuit to directly
indicate the test potential.
P
76.7 When the output of the test equipment transformer
is 500 volt-amperes or larger, the test potential
shall be indicated by any of the following:
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a)By a voltmeter in the primary circuit or in a
tertiary-winding circuit;
P
b)By a selector switch marked to indicate the test
potential; or
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76.8 Test equipment other than that described in 76.5 –
76.7 shall be used only when found acceptable to
accomplish the intended factory control.
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