JBL ON STAGE III IIIP (serv.man2) EMC - CB Certificate ▷ View online
<12014238 001 >
Page 44 of 77
TRF No.:IECEN60950_1B
TRF originator: SGS Fimko
2.10.2
Table: working voltage measurement
P
Location
RMS voltage (V)
Peak voltage (V) Comments
Model DSA-20R-12 FEU 150204
T1 pin 1-8
196
360
T1 pin 2-8
280
548
Highest working voltage
T1 pin 3-8
205
364
T1 pin 4-8
206
388
T1 pin 5-8
210
420
T1 pin 1-10
195
380
T1 pin 2-10
264
540
T1 pin 3-10
207
384
T1 pin 4-10
210
404
T1 pin 5-10
207
390
Note(s):
Test voltage:
240 V
Test frequency: 60 Hz
2.10.3 and
2.10.4
2.10.4
TABLE: clearance and creepage distance measurements
P
Clearance cl and creepage
distance dcr at/of:
distance dcr at/of:
Up
(V)
U r.m.s.
(V)
Required
cl (mm)
cl
(mm)
Required
dcr (mm)
dcr (mm)
dcr
(mm)
Unit:
primary components
(with 10N) → secondary
components (with 10N)
components (with 10N)
548
280
4.4
7.8
6.0
7.8
Unit:
primary components
(with 10N) → core of T1 (with
10N)
10N)
548
280
2.2
3.7
3.0
3.7
Unit:
core of T1 (with 10N) →
secondary components (with
10N)
10N)
548
280
2.2
3.7
3.0
3.7
PCB: primary → secondary
traces under transformer
traces under transformer
548
280
4.4
7.5
6.0
7.5
PCB: primary → secondary
traces under U2
traces under U2
548
280
4.4
6.9
6.0
6.9
Unit:
primary components →
accessible part (outside
enclosure)
enclosure)
548
280
4.4
6.5
6.0
6.5
L, N before fuse
420
250
1.5
3.1
2.5
3.1
Two pins of current fuse
420
250
1.5
2.9
2.5
2.9
<12014238 001 >
Page 45 of 77
TRF No.:IECEN60950_1B
TRF originator: SGS Fimko
Note(s):
Functional insulation shorted, see sub-clause 5.3.4.
2.10.5
TABLE: distance through insulation measurements
P
Distance through insulation di at/of:
U r.m.s.
(V)
Test voltage
(V)
Required di
(mm)
di
(mm)
Optocoupler (reinforced insulation)
250
3000
0.4
1)
Enclosure material (reinforced insulation)
250
3000
0.4
2.0
Note(s):
Further details are provided in table 1.5.1.
Test voltages are a.c.
4.5.1
TABLE: temperature rise measurements
P
test voltage (V) ..................................................... : a: 264 V, 50 Hz
b: 90 V, 60 Hz
t1 (°C) .................................................................. : --
t2 (°C) .................................................................. : --
Rise ∆T of part/at:
T (°C)
allowed T
max
(°C)
Test voltage:
(a)
(b)
--
Model DSA-20R-12 FEU 150204
Plug portion
48.2
50.6
--
T1 winding
83.5
82.8
110
T1 core
77.7
76.9
110
Linear Filter LF1 winding
64.3
80.3
130
PCB under Q1
82.0
82.8
130
PCB under D9
79.8
79.4
130
Electrolytic Capacitor C2
71.2
79.0
105
Opto-coupler U1
75.6
72.5
100
Primary lead wire
58.3
65.6
80
Output cord
58.5
58.2
80
Enclosure (inside)
60.2
60.9
--
Enclosure (outside)
46.2
46.4
95
Ambient
40.0
40.0
--
Model DSA-20R-12 FEU 102204
Plug portion
52.3
53.0
--
T1 winding
80.9
81.9
110
T1 core
83.4
83.8
110
<12014238 001 >
Page 46 of 77
TRF No.:IECEN60950_1B
TRF originator: SGS Fimko
Linear Filter LF1 winding
70.7
84.7
130
PCB under Q1
93.5
89.5
130
PCB under D9
86.4
88.5
130
Electrolytic Capacitor C2
71.9
84.1
105
Opto-coupler U1
80.9
78.1
100
Primary lead wire
61.0
64.7
80
Output cord
62.0
62.9
80
Enclosure (inside)
62.8
64.7
--
Enclosure (outside)
49.6
50.3
95
Ambient
40.0
40.0
--
Temperature rise ∆T of winding:
R
1
(Ω)
R
2
(Ω)
T
(°C)
Allowed
T
max
(°C)
insulation
class
--
--
--
--
--
--
--
--
--
--
--
--
Note(s):
The temperatures were measured under worst case normal mode defined in 1.2.2.1 and as described in sub-
clause 1.6.2 and at voltages as described above.
With a rated maximum ambient temperature of 40 °C, the maximum temperature rises are calculated as
follows:
Winding components providing safety isolation:
- Class B
follows:
Winding components providing safety isolation:
- Class B
→ Tmax = 120°C-10°C = 110°C (10°C decreased by thermocouple method)
Components with maximum absolute temperature of:
- Opto-coupler 100 °C
- Electrolytic Capacitor 105 °C
- PCB 130 °C
- LF1 winding 130 °C
- Output cord 80°C
- Primary lead wire 80°C
Operator touchable surface with maximum temperature rise of:
- 95°C
- Output cord 80°C
- Primary lead wire 80°C
Operator touchable surface with maximum temperature rise of:
- 95°C
4.5.2
TABLE: ball pressure test of thermoplastic parts
P
allowed impression diameter (mm) ................. : ≤ 2 mm
Part
Test temperature
(°C)
Impression diameter
(mm)
Pin sleeving material for BS plug (SE1X)
125
1.7
Plug holder material for Euro-plug
125
1.3
Pin sleeving material of Australian plug
125
1.6
PCB
125
1.0
<12014238 001 >
Page 47 of 77
TRF No.:IECEN60950_1B
TRF originator: SGS Fimko
Note(s):
1. The bobbin material of T1, LF1, LF2 is phenolic, no test is required;
2. The enclosure material is the same as the pin sleeving material of BS plug.
4.6.1, 4.6.2 Table: enclosure openings
P
Location
Size (mm)
Comments
Bottom
--
No openings
Sides
--
No openings
Top
--
No openings
Note(s):--
4.7
Table: resistance to fire
N/A
Part
Manufacturer of material
Type of material
Thickness
(mm)
Flammability
class
Note(s): refer to table 1.5.1 for details.
5.1.6
TABLE: touch current measurement
P
Condition
L→ terminal A
(mA)
N → terminal A
(mA)
Limit
(mA)
Comments
Model DSA-20R-12 FEU 150204
System ON
0.02
0.02
0.25
Test location: o/p connector
System ON
0.02
0.02
0.25
Test location: enclosure wrapped with
metal foil
metal foil
Note(s):
Test voltage: 264 V
Test frequency: 60 Hz
5.2
TABLE: electric strength tests and impulse tests
P
Test voltage applied between:
Test voltage (V)
Breakdown
Unit:
primary circuit to secondary circuit
4242 V d.c.
No
Unit:
primary circuit to accessible enclosure
3000 V a.c.
No
T1:
primary winding to secondary winding
3000 V a.c.
No
T1:
primary winding to core
1815 V a.c.
No
T1:
core to secondary winding
1815 V a.c.
No
Insulation tape between primary and secondary winding (2
layers)
layers)
3000 V a.c.
No
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