BS 6622 Single Core Unarmoured ( Copper Wire Screen) 33KV XLPE Stranded Copper Conductors

Construction

cross-sectional area mmsq
Minimum average thickness of insulation mm

Nominal diameter over insulation
mm

 
Nominal area of copper wire screen
mm sq
Nominal average thickness of PVC oversheath
mm

Nominal overall diameter of cable

mm

50
8
27.1
16
2.0
34.5
70
8
28.9
16
2.0
36.5
95
8
30.6
16
2.1
38.4
120
8
32.1
16
2.1
39.9
150
8
33.4
16
2.2
41.2
185
8
35.2
16
2.2
13.2
240
8
37.4
25
2.3
15.7
300
8
39.7
25
2.4
18.2
400
8
42.4
35
2.5
51.1
500
8
45.3
35
2.6
54.0
630
8
48.7
35
2.7
57.8
800
Please refer to our technical department for further information
1000

Installation

cross-sectional area mmsq

Approximate cable weight

kg/m
Nominal drum length
m

Minimum bending radius

mm

Nominal internal diameter of ducts

mm

50
1.5
1000
750
100
70
1.8
500
800
100
95
2.1
500
850
100
120
2.4
500
850
100
150
2.7
500
900
100
185
3.1
500
950
100
240
3.8
500
1000
100
300
4.5
500
1050
100
400
5.5
250
1100
100
500
6.6
250
1150
100
630
8.0
250
1250
100
800
Please refer to our technical department for further information
1000

Electrical Performance

cross-sectional area mmsq
Maximum DC resistance of conductor at 20 ℃ uohms/m
Maximum AC resistance of conductor at 90 ℃ uohms/m
Reactance at 50Hz
uohms/m
Impedance at 50Hz uohms/m
Maximum Capacitace PF/m
Maximum charging current at normal voltage and frequency mA/m
50
387
494
152
516
138
0.83
70
268
343
143
371
154
0.92
95
193
248
135
281
169
1.01
120
153
196
130
235
183
1.10
150
124
159
126
202
194
1.16
185
99.1
128
122
176
210
1.26
240
75.4
98
117
152
229
1.37
300
60.1
80
113
138
249
1.49
400
47.0
64
109
126
273
1.64
500
36.6
51
105
116
298
1.79
630
28.3
42
102
110
327
1.96
800
Please refer to our technical department for further information
1000

Ratings

Cross-sectional area
mmsq
Current Ratings
Short circuit ratings
Laid in ground
Amps
Drawn into ducts
Amps
Laid in air
Amps
One second short circuit rating of conductor
KA
One second short circuit rating of copper per core
KA
50
220
225
260
6.8
2.6
70
270
270
320
9.8
2.6
95
320
320
390
13.3
2.6
120
360
360
445
17.2
2.6
150
410
405
510
21.2
2.6
185
460
445
580
26.6
2.6
240
530
520
680
34.9
4.3
300
600
570
770
43.8
4.3
400
690
630
890
57.3
5.8
500
760
700
1020
72.3
6.0
630
850
780
1160
91.2
5.8
800
Please refer to our technical department for further information
1000

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