Third Party Verification Claim
Page 50 of 129 Report No.: JAT2209271146SR-1
UL 859
Clause
Requirement + Test
Result - Remark
Verdict
Room 303, Building 1, No.316, Renzhou Road, Shatian Town, Dongguan City, Guangdong Province, China.
Tel: 0769-81710286 E-mail: wangzhao@junantest.com Website: www.junantest.com
38.5
The measurement circuit for leakage current is to
be as shown in Figure 38.1. The measurement
instrument is described in (a) – (d). The meter
used for a measurement need only indicate the
same numerical value for a particular
measurement as would the defined instrument.
The meter used need not have all the attributes of
the defined instrument
P
The meter is to have an input impedance of a
1,500-ohm resistor shunted by a capacitance of
0.15 microfarads
P
The meter is to indicate 1.11 times the average of
the full wave rectified composite waveform of the
voltage across the resistor or current through the
resisto
P
38.6
A sample of the appliance is to be tested for
leakage current starting with the as-received
condition, but with its grounding conductor, if any,
open at the attachment plug (open at receptacle
as shown in Figure 38.1). The as- received
condition is without prior energization, other than
that which may have occurred as part of the
production-line testing. The supply voltage is to be
adjusted to 120 or 240 volts depending on the
rating. Thermostats are to be closed. The test
sequence, with reference to the measuring circuit
(Figure 38.1) is to be as follows
P
With switch S1 open, the appliance is to be
connected to the measuring circuit. Leakage
current is to be measured using both positions of
switch S2, and with the appliance switching
devices in all their operating positions
P
Switch S1 is then to be closed, energizing the
appliance, and within 5 seconds, the leakage
current is to be measured using both positions of
switch S2, and with the appliance operated at the
maximum heat setting of controls
P
38.7
Normally a sample will be carried through the
complete leakage current test program as
described in 38.6, without interruption for other
tests. With the concurrence of those concerned,
the leakage current tests may be interrupted for
the purpose of conducting other nondestructive
tests
P
39
Leakage Current Test Following Humidity Conditioning
P
39.1
A cord-connected appliance shall comply with the
requirements for leakage current specified in
38.1 following exposure for 48 hours to air having
a relative humidity of 88 2 percent at a
temperature of 32 2°C (89.6 3.6°F)
48H for 88%,32 °C
P