BS 6622 Three 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
1.4
54/2.5
2.7
57.1
95
3.4
20.5
1.5
59/2.5
2.8
61.2
120
3.4
22.0
1.6
62/2.5
3.0
65.0
150
3.4
23.3
1.6
65/2.5
3.1
68.0
185
3.4
25.1
1.7
70/2.5
3.2
72.3
240
3.4
27.3
1.8
61/3.15
3.4
79.0
300
3.4
29.6
1.9
65/3.15
3.6
84.5
400
3.4
32.3
2.0
70/3.15
3.8
90.9

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
5.1
500
700
100
95
5.7
500
750
100
120
6.4
500
800
100
150
6.9
500
850
125
185
7.3
500
900
125
240
9.7
500
950
125
300
10.9
450
1050
125
400
12.5
400
1100
125

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
108
578
298
0.62
95
320
410
102
422
334
0.67
120
253
325
98.8
340
365
0.73
150
206
265
96.2
282
392
0.78
185
164
211
93.1
231
430
0.86
240
125
161
90.0
184
476
0.95
300
100
130
87.4
157
524
1.05
400
77.8
102
84.9
133
580
1.16

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
195
165
210
6.3

Typically

less

than

1kA
95
230
200
250
8.5
120
265
225
295
11.0
150
295
255
330
13.5
185
335
290
385
17.0
240
380
335
450
22.3
300
435
375
510
28.0
400
480
420
570
36.6

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