Energy Guide

Page 67 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
a)A visual inspection to determine that there is no
wetting of uninsulated live parts or film-coated wire
– other than motor windings – and no accumulation
of water in the wiring compartment or channel. The
accumulation of water droplets shall only be
acceptable when the fan complies with the tests in
(b) and (c). A drain hole may be provided to reduce
the accumulation of water above a level that results
in the wetting of an electrical part or wiring
compartment.
N/A
b)A leakage current test for 120 volt cord
connected appliances (see 48.4.1 – 48.4.6) or an
insulation resistance test for all other appliances
(see 48.5.1).
N/A
c)A dielectric voltage withstand test (see 48.6.1). N/A
48.2 Test preparation N/A
48.2.1 The water spray test apparatus is to consist of
three spray heads mounted in a water supply pipe
rack as shown in Figure 48.1. Spray heads are to
be constructed in accordance with the details
shown in Figure 48.2.
N/A
48.3 Procedure N/A
48.3.1 The appliance is to be mounted in accordance with
the installation instructions. For items of installation
not covered by the instructions, the most severe
method of test installation is to be used.
N/A
48.3.2 The appliance is to operate during the exposure
when it:
a)Is intended to draw air in rather than expel it; or
b)Has louvers that open only when the appliance is
operating.
N/A
48.3.3 The appliance is to be subjected to a water spray
for 4 hours in the direction most likely to cause
water to enter.
N/A
48.3.3 Before conducting a leakage current measurement
with the circuit in Figure 48.3, the appliance is to be
disconnected from the receptacle. It is to be
determined by closing S1, utilizing both positions of
S2, and observing the leakage currents at the
meter, that the stray leakage currents are
negligible.
N/A