Third Party Verification Claim

Page 54 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: [phone] E-mail: [e-mail] Website: www.junantest.com
42.1.1
A hair dryer that is provided with a conductive
coating for use as an IDCI sensor shall be
conditioned as described in 42.2.1 –
42.5.1 and then subjected to the mechanical
endurance test described in 42.1.2. Five separate
samples are to be used for each conditioning. The
resistance from at least three points on the interior
of the enclosures (typically a point near the
exhaust opening, a point near the intake opening,
and a point that is the longest distance away from
the point of connection of the sensor wire) to the
sensor wire termination is to be determined before
the conditioning begins, after conditioning, and
then again after the mechanical endurance test
N/A
42.1.2
After conditioning, all samples are to be subjected
to 150 cycles of mechanical endurance or the
number of cycles less than 150 that results in the
hair dryer becoming inoperable due to breakage of
an electrical connection or component or a
mechanical breakdown. Detachment of the
exhaust grille or intake grille, or similar failure of
mechanical parts that do not result in the hair
dryer becoming inoperable shall not be considered
to be the end of the test. It is usually necessary to
examine and energize the samples after each
impact to determine if the hair dryer has become
inoperable. The samples are to be attached to a
45-inch (1.14-m) long cord positioned 38 inches
(0.97 m) from the vertical plane of a Maplewood
block as shown in Figure 42.1, with points A and B
in the same horizontal plane. The samples are to
be allowed initially to drop and then to swing in an
arc onto the vertical surface of the maple block.
The resistance of each sample is to be determined
again between the same points previously used
and compared to the first three values of
resistance. The results are acceptable if:
N/A
The resistance of the samples does not increase
to a value in excess of 50 percent of that
determined to be the maximum value that will
cause the IDCI to trip (The maximum resistance
resulting in the threshold trip current flow for the
IDCI is usually determined in a separate
investigation of IDCIs) and
N/A
There is no visible cracking, flaking, peeling,
wrinkling, blistering, or similar deterioration of the
conductive coating
N/A
42.2
Thermal cycling
N/A
42.2.1
Five samples are to be conditioned for
N/A
One hour at 18.0 – 20.0°C (32.4 – 36.0°F)
higher than the maximum measured normal-use
temperature of the coating determined in
accordance with 44.5, but no less than 85°C
(185°F) in any case, followed by
N/A