Energy Guide

Page 72 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
52.1 The test method for flagging shall be in accordance
with the Test for Flagging (as received), Method A-
For Class 1 Tape, of the Standard Test Methods
for Pressure-Sensitive Adhesive-Coated Tapes
Used for Electrical and Electronic Applications,
ASTM D 1000-04.
N/A
52.2 The rod used for the test shall be 19 mm (3/4 inch)
in diameter.
N/A
52.3 The length of the unwound tape (flag) from the end
of the tape to the point of tangent of the rod shall
be less than 1.6 mm (1/16 inch).
N/A
53 Humidity Conditioning Test P
53.1 A sample of the appliance is to be heated to a
temperature just above 34°C (93°F) to reduce the
likelihood of condensation of moisture during
conditioning. The heated sample is then to be
placed in the humidity chamber and conditioned for
48 hours in air having a relative humidity of 88 ±2
percent and a temperature of 32 ±2°C (90 ±4°F).
Following the conditioning:
P
53.2 Insulation resistance is to be measured by means
of a high-resistance voltmeter using a 250-volt,
direct-current circuit.
P
54 Strain Relief Test P
54.1 The strain relief means provided on a flexible cord
shall withstand for 1 minute without displacement a
direct pull of 155.68 N (35 pounds) applied to the
cord with the connections within the appliance
disconnected. The strain relief is not acceptable
when, at the point of disconnection of the
conductors, there is such movement of the cord as
to indicate that stress on the connections has
resulted.
P
54.2 The strain relief means provided on a flexible cord
shall withstand for 1 minute without displacement a
torque as shown in Table 42.1 in either direction
between the cord and the enclosure with the
connections within the appliance disconnected.
The strain relief is not acceptable when, at the
point of disconnection of the conductors, there is
such movement of the cord as to indicate that
stress on the connections has resulted.
P
54.3 A 16-kg (35-pound) weight is to be suspended from
the cord and supported by the appliance so that
the strain-relief means can be stressed from any
angle the construction of the appliance permits.
P