Harman Kardon HK 990 (serv.man4) EMC - CB Certificate ▷ View online
Page 24 of 50
Report No. 902952-1
IEC
60065
Clause
Requirement – Test
Result - Remark
Verdict
TRF No.: IEC60065F
TRF Originator: ASTA BEAB
Winding temperature rise measurements
Ambient temperature t1 (
o
C) .............................
Ambient temperature t2 (
o
C) .............................
23
24
—
—
—
—
Temperature rise dT of winding:
dT = (R
dT = (R
2
– R
1
) x (234.5 + t1) – (t2 – t1)
R
1
R
1
(Ω)
R
2
(Ω)
dT (K)
Limit
maxK)
Insulation class
T1 prim. winding (stand-by transf.)
1720
1920
29
70
Class A
T4 prim. winding (connected at CN9)
20.0
23.0
37
70
Class A
T2 prim. winding (connected at CN8)
1.4
1.6
36
70
Class A
T3 prim. winding (connected at CN7)
1.4
1.6
36
70
Class A
9.1
Shock Hazard
P
Under normal operating conditions: > 35Vpk ac / 60V dc
Notes: Reference Annex D
Notes: Reference Annex D
-
CLASS I: (single phase)
AC
DC
U1: - Vpk
- mA rms
U1: - V
- mA
U2: - Vpk
- mA rms
CLASS II: (single phase)
U1: 0.5 Vpk
- mA rms
U1: - V
- mA
U2: 0.1 Vpk
0.14 mA rms
Page 25 of 50
Report No. 902952-1
IEC
60065
Clause
Requirement – Test
Result - Remark
Verdict
TRF No.: IEC60065F
TRF Originator: ASTA BEAB
10.3
TABLE: Insulation Resistance Measurements
P
Insulation resistance R between:
R (MΩ)
Min
required R
(MΩ)
Between mains poles (primary fuse disconnected)
100
2
Between parts separated by basic or supplementary insulation
-
2
Between parts separated by double or reinforced insulation
100
4
10.3
TABLE: Electric Strength Measurements
P
Test voltage applied between:
Test voltage (V)
Breakdown
Mains poles (primary fuse disconnected)
1414 (peak)
No
Between parts separated by basic or supplementary insulation
-
-
Between parts separated by double or reinforced insulation
2828 (peak)
No
Page 26 of 50
Report No. 902952-1
IEC
60065
Clause
Requirement – Test
Result - Remark
Verdict
TRF No.: IEC60065F
TRF Originator: ASTA BEAB
11.2
TABLE: summary of fault condition tests
P
Voltage (V) 0.9 or 1.1 times rated voltage .............: 110-120
—
Frequency
(Hz)……………………………………..:
60
—
Ambient
temperature
(
o
C) .......................................: 21-25
—
No
Component
Fault
Temp Rise/
Component
Component
Other results
(include description and test duration)
(include description and test duration)
1 Output 100% -
Un=132V,
Pout=380W/channel
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
2
Fan
Blocked
(fan near T2)
(fan near T2)
Main PCB= 47K
T2 winding= 83K
T4 winding= 54K
Un=132V, In=5.2A
Test duration=1h
Apparatus goes to protective mode after
1h. No high temp, no hazard.
1h. No high temp, no hazard.
3 Ventilation
Covered
Main
PCB=
50K
T2 winding= 90K
T4 winding= 62K
Un=132V, In=5.2A
Test duration=1h
Apparatus goes to protective mode after
1h. No high temp, no hazard.
1h. No high temp, no hazard.
4 Speaker
s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
5 D6
s.c
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
6 C26 s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
7 C71 s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
8 D7
s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
Page 27 of 50
Report No. 902952-1
IEC
60065
Clause
Requirement – Test
Result - Remark
Verdict
TRF No.: IEC60065F
TRF Originator: ASTA BEAB
9 C72 s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
10 D3
s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
11 D5
s.c.
--
Un=99/132V
Test duration=1min.
Mains fuse opens immediately. No high
temp, no hazard.
temp, no hazard.
12 C3
s.c.
--
See
fault
11
13 Q5
s.c.
--
See
fault
11
14 C18
s.c.
--
See
fault
11
15 C3
s.c.
--
Un=99V
Test duration=5min.
Mains fuse opens. No high temp, no
hazard.
hazard.
16
IC4 (pin 2-3)
s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
17
IC2 (pin 1-2)
s.c.
--
Un=132V
Test duration=20min.
Apparatus goes to protective mode after
<1min. No high temp, no hazard.
<1min. No high temp, no hazard.
Winding temperature rise measurements
Ambient temperature t1 (
o
C) .................................. : --
—
Ambient temperature t2 (
o
C) .................................. : --
—
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