BS 6622 Single Core Armoured 11kV XLPE Stranded Aluminium Conductors

Construction

cross-sectional area mmsq
Minimum average thickness of insulation mm

Nominal diameter over insulation
mm

 
Nominal thickness of PVC bedding
mm
Nominal number and diameter of armoured wires no./mm
Nominal thickness of PVC oversheath
mm
Nominal overall diameter of cable mm
70
3.4
18.8
1.2
42/1.6
1.9
29.7
95
3.4
20.5
1.2
45/1.6
1.9
31.4
120
3.4
22.0
1.2
47/1.6
2.0
33.1
150
3.4
23.3
1.2
40/2.0
2.1
35.4
185
3.4
25.1
1.2
43/2.0
2.1
37.2
240
3.4
27.3
1.2
46/2.0
2.2
39.8
300
3.4
29.6
1.2
49/2.0
2.3
42.3
400
3.4
32.3
1.2
53/2.0
2.4
45.2
500
3.4
35.2
1.3
46/2.5
2.5
49.5
630
3.4
38.6
1.4
50/2.5
2.6
53.3

Installation

cross-sectional area mmsq
Approximate cable weight kg/m
Nominal drum length
m
Minimum bending radius mm
Nominal internal diameter of ducts mm
70
1.1
1000
450
100
95
1.3
1000
500
100
120
1.4
500
500
100
150
1.7
500
550
100
185
1.9
500
600
100
240
2.1
500
600
100
300
2.4
500
650
100
400
2.8
300
700
100
500
3.5
300
750
100
630
4.1
300
800
100

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
70
443
568
130
583
288
0.58
95
320
410
123
428
323
0.65
120
253
325
118
346
353
0.71
150
206
265
117
291
380
0.76
185
164
211
112
240
416
0.83
240
125
161
109
195
460
0.92
300
100
130
105
168
506
1.01
400
77.8
102
101
144
561
1.12
500
60.5
81
99.8
129
619
1.24
630
46.9
64
96.1
116
698
1.37

Ratings

Cross-sectional area
mmsq
Current Ratings
Short circuit ratings
Laid direct 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
70
210
210
240
6.3
Typically
less
then
1kA
95
250
245
295
8.5
120
280
275
335
11.0
150
315
300
380
13.5
185
355
335
435
17.0
240
405
380
510
22.3
300
455
420
580
28.0
400
510
455
670
36.6
500
570
500
770
46.2
630
640
550
880
58.3

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