JBL CS460 EMC - CB Certificate ▷ View online
page 22 of 34
Ref.No.:610599
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
Operating conditions
253V (for UK) 1/8 of the max. non-clipping output power using the pink noise signal acc. to 4.1.6 .
Input signal connected to ’Line in L/R’
Un (V)
In (A)
Pn (W)
Pout (W)
253 0.29 55 20.3
monitored point:
dT (K)
Permitted dT (K)
Iron core of mains transformer
53
—
Supply cords (Not under mechanical stress)
43
60
PCB (heat sink supported by PCB)
48
85
Inside plastic cover
41
—
Heat sink, on rear panel
28
40
Rear panel, near control
26
40
Buttons (plastic)
22
50
Winding temperature rise measurements
Ambient
temperature t1 (ºC) .................................. : 19
Ambient temperature t2 (
°C) .................................. : 22
temperature rise dT of winding:
R
1
(
Ω)
R
2
(
Ω)
dT (K)
permitted
dT (K)
insulation
class
Transformer Primary winding
8.985
11.077
56
85
E
Transformer Secondary winding (Yellow)
0.5432
0.6569
50
85
E
Transformer Secondary winding (Red)
1.0681
1.2942
51
85
E
page 23 of 34
Ref.No.:610599
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
7.2
TABLE: softening temperature of thermoplastics
N/A
temperature T of part
T - normal
conditions (ºC)
T - fault
conditions (ºC)
T softening
(ºC)
10.3
TABLE: insulation resistance measurements
P
insulation resistance R between:
R (M
Ω)
required R (M
Ω)
Between the poles of the circuit directly connected to the
supply mains.
>10 min.2
Reinforced insulation.
>10
min.4
10.3
TABLE: electric strength measurements
P
test voltage applied between:
test voltage (V)
Breakdown
Between the poles of the circuit directly connected to the
supply mains.
2120V peak
No
Reinforced insulation.
4240V peak
No
page 24 of 34
Ref.No.:610599
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
11.2
TABLE: summary of fault condition tests
P
Voltage (V) 0.9 or 1.06 times rated voltage ........... : 220-230 (1.1 x 230 for UK)
Ambient temperature (
°C) ...................................... : 22
Winding temperature rise measurements
Ambient
temperature t1 (ºC) .................................. : 22
Ambient
temperature t2 (ºC) .................................. : 22
No
.
Component
No.
Fault Test voltage
(V)
Test
time
Fuse No.
Fuse
current
(A)
Result
1a
Max. non-
clipping
output
power
(pink noise)
— 243.8 4h Mains
fuse
0.4
1b
Max. non-
clipping
output
power
(pink noise)
— 253 4h
Mains
fuse
0.44
2 Q105 sc 198
-- Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
3 Q107 sc 198
-- Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
4 C133 sc 198
-- Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
5a C122 sc 253
-- Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
5b C122 sc 198
-- Mains
fuse
≤2.3A
Pin=450→260W, Iin=2.3→1.5A
Printed conductors on the PCB
were interrupted. When the
conductors were bridged the
thermal link in the transformer
opened after 3.5 min. No remarks.
Printed conductors on the PCB
were interrupted. When the
conductors were bridged the
thermal link in the transformer
opened after 3.5 min. No remarks.
page 25 of 34
Ref.No.:610599
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
6 D115
( - +)
sc 198 --
Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
7 D110
( - +)
sc 198 --
Mains
fuse
>2.6A
Mains fuse blew immediately.
No remarks.
8 C117 sc 198
--
--
-- P
mains
decreased to 8W.
No hazard.
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