JBL SCS 146 Sub (serv.man2) EMC - CB Certificate ▷ View online
page 5 of 9
Ref.No.:407363
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
11.2.5
Temperature rise of windings
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11.2.6
Temperature rise of other parts not subject to the
limits of 11.2.1 to 11.2.5
limits of 11.2.1 to 11.2.5
P
7.1
TABLE: temperature rise measurements
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Power consumption in the OFF/Stand-by
Position of the functional switch (W) ..................... : -
Operating conditions
1/8 of the max. non-clipping output power using the pink noise signal acc. to 4.1.6 .
Un (V)
In (A)
Pn (W)
Pout (W)
254.4
0.40
72
31
Loudspeaker impedance (
Ω) ................................ : 3.4Ω (measured)
Several loudspeaker systems
Marking of loudspeaker terminals
(High Level out/in)
monitored point:
dT (K)
Permitted dT (K)
* indicates for
tropical climates.
Iron core of mains transformer
43
—
Supply cords (Not under mechanical stress)
20
60/50*
PCB
26
85/75*
Inside top of internal plastic cover
17
—
Heat sink, on rear panel
24
40/30*
Rear panel, above heat sink
25
40/30*
Volume control (plastic)
19
50/40*
Top of cabinet
8
60/50*
Winding temperature rise measurements
Ambient temperature t1 (ºC) ................................. : 20
Ambient temperature t2 (
°C) ................................. : 21
temperature rise dT of winding:
R
1
(
Ω)
R
2
(
Ω)
dT (K)
permitted
dT (K)
insulation
class
Transformer Primary vinding
8.885
10.565
47
85/75*
E
Transformer Secondary winding (Yellow)
0.5635
0.6646
45
85/75*
E
Transformer Secondary winding (Red)
1.0953
1.2960
46
85/75*
E
page 6 of 9
Ref.No.:407363
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
10 INSULATION
REQUIREMENTS
(See appended table)
10.1
Insulation resistance (M
Ω) at least 2 MΩ min. after
surge test for basic and 4 M
Ω min. for reinforced
insulation
>100M
Ω
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10.2
Humidity treatment 48 h or 120 h
48 h (see also page 8)
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10.3
Insulation resistance and dielectric strength
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10.3
TABLE: insulation resistance measurements
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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
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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 7 of 9
Ref.No.:407363
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 .......... : 220-240
Ambient temperature (
°C) ..................................... : 21
Winding temperature rise measurements
Ambient temperature t1 (ºC) ................................. : 20
Ambient temperature t2 (ºC) ................................. : 21
No
.
Component
No.
Fault Test voltage
(V)
Test
time
Fuse No.
Fuse
current
(A)
Result
1 Max.
non-
clipping
output
power
(Pink noise)
— 254.4 4h Mains
fuse
0.6
Pn = 110W. Uout=15.5V (limited
by the amplifier)
Measured temp.rises:
Mains transformer:
Prim. winding = 56K
Sec. windings = 56K
PCB = 26K
Rear panel (metal) = 26K
Heat sink (on rear side) = 24K
by the amplifier)
Measured temp.rises:
Mains transformer:
Prim. winding = 56K
Sec. windings = 56K
PCB = 26K
Rear panel (metal) = 26K
Heat sink (on rear side) = 24K
No remarks.
page 8 of 9
Ref.No.:407363
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
National differences for Singapore
(These differences are taken from IEC 60065:1993 and adopted to IEC 60065:1998)
IEC 60065: 1998
Clauses: 4, 7, 9, 10 and 16.
Throughout the standard, whenever the words "white pine board" appear, insert
the words "or plywood board" to it.
the words "or plywood board" to it.
Noted
SS143 Amendment No. 1 and No. 2
4.1.3
(4.1.3)*
Delete "45 % to 75 %" and insert 65 ± 5 %.
75% maximum in IEC 60065:
1998
1998
P
7.1
(7.1)
Resistance to heat without external forces.
Adopt the temperature specified for the tropical
conditions.
conditions.
P
8.6
(9.3.4)
Delete the note " A Quality Assessment System
for capacitors complying with Subclause 14.2 is
under consideration in the IEC".
for capacitors complying with Subclause 14.2 is
under consideration in the IEC".
This is not in IEC 60065:1998.
Noted
10.2
(10.2)
Humidity treatment
Adopt the testing conditions designed for tropical
conditions.
conditions.
120h at 93% relative humidity
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16
(16)
External flexible cords
Delete "IEC Publication 60227: Polyvinyl Chloride
Insulated Cables of Rated Voltages up to and
Including 450/750 V and IEC publication 60245:
Rubber insulated Cables of rated up to and
including 450/750 V " and insert "Singapore
Standard 236: Flexible Cords", whenever they
appear in this clause.
Insulated Cables of Rated Voltages up to and
Including 450/750 V and IEC publication 60245:
Rubber insulated Cables of rated up to and
including 450/750 V " and insert "Singapore
Standard 236: Flexible Cords", whenever they
appear in this clause.
Delete "CEE Publication 13, CEE Publication 2
and IEC Publication 60173: Colours of the Cores
of Flexible Cables and Cords" whenever they
appear in this clause.
and IEC Publication 60173: Colours of the Cores
of Flexible Cables and Cords" whenever they
appear in this clause.
Noted
16.2
(16.2)
Delete the notes in small print and insert "A
nominal cross-sectional area of 0.75 mm² will
satisfy this requirement".
nominal cross-sectional area of 0.75 mm² will
satisfy this requirement".
This is not in IEC 60065:1998.
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* in parenthesis: clauses acc. to IEC 60065:1993
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