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Order No. 23172
4.5
THERMAL REQUIREMENTS
—
4.5.1
Temperature rises
No thermostats, temp. limiters or thermal cut -outs.
N
4.5.2
Resistance to abnormal heat
No such parts.
N
Table 4.5.1
TEMPERATURE RISES
P
Test voltage
6 VDC
Parts on the circuit board: Thermocouples were used to measure
temperatures.
temperatures.
∆
t measured K
U = 6.0 VDC
∆
t allowed
K
External accessible enclosure (Plastic)
—
70
U8
9.2
—
U9
13.0
—
U10
13.7
—
U13
6.3
—
C101 (Rated 85
°
C)
10.1
60
Power Inlet (Plastic)
3.7
70
C93 Body (Rated 85
°
C)
7.0
60
Ambient
23.0
°
C
—
Comments
Tmra = 25°C.
4.6
OPENINGS IN ENCLOSURES
Class III equipment.
N
4.7
RESISTANCE TO FIRE
Class III equipment, supplied by Limited Power Source
complying with Sub-clause 2.5.
complying with Sub-clause 2.5.
P
5.1
ELECTRICAL REQUIREMENTS
AND SIMULATED ABNORMAL
CONDITIONS
AND SIMULATED ABNORMAL
CONDITIONS
Class III equipment.
N
5.2
ELECTRIC STRENGTH
Class III equipment.
N
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