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Report No. 155282
5.3 TABLE:
Fault condition tests
P
Ambient temperature (
°C) ................................... :
⎯
Power source for EUT: Manufacturer, model/type,
output rating ......................................................... :
output rating ......................................................... :
Test conducted with unlimited
source.
source.
⎯
Component
No.
Fault
Supply
voltage
(V)
Test
time
Fuse #
Fuse
current
(A)
Observation
1 Acoustic
port
blocked
24Vdc
2.0 h
—
0.25
No hazard. Maximum
temperature recorded was 51°C
in a 21.7°C ambient on PCB
opposite U5.
temperature recorded was 51°C
in a 21.7°C ambient on PCB
opposite U5.
2 Output
short
(tweeter)
24Vdc
2.0 h
—
0.22
No hazard. Maximum
temperature recorded was
57.6°C in a 22.7°C ambient on
PCB opposite U5.
temperature recorded was
57.6°C in a 22.7°C ambient on
PCB opposite U5.
3 Output
short
(woofer)
24Vdc
2.0 h
—
0.42
No hazard. Maximum
temperature recorded was
82.5°C in a 22.5°C ambient on
PCB by U5 and C28.
temperature recorded was
82.5°C in a 22.5°C ambient on
PCB by U5 and C28.
4 Max.
undistorted
level (refer to
appended table
1.6.2)
level (refer to
appended table
1.6.2)
24Vdc
2.0 h
—
0.62
No hazard. Maximum
temperature recorded was 45°C
in a 22.5°C ambient on PCB
opposite U5.
temperature recorded was 45°C
in a 22.5°C ambient on PCB
opposite U5.
Supplementary information:
