BS 6724 SWA Armoured LSZH Sheath 0.6/1kV LV Power Armour Cable
1. Overview
Low Voltage Power Cables, Aluminum and Copper conductors of voltage range:0.6/1.0 kV.
2. Cable Types
Copper Conductor Cables
Aluminium Conductor Cables
Thermoplastic/ PVC Insulated Cables
Thermoset/XLPE Insulated Cables
Armoured/ Non - Armoured Cables
Single core cables up to and including 1000 mm2
2 core cables up to and including 95 mm2
3, 4 core & 4 core with reduced neutral cables up to and including 500 mm2
3. Applicable Standards
IEC 60502 (Part 1)"PVC/ XLPE insulated cables" single core /multi-core BS 5467 for XLPE insulated Armoured cables
BS 7889 for XLPE insulated single core unarmoured cables
4. Cables Include:
4.1 BS 6724 SWA LSZH 0.6/1kV Cable
4.1.1 Cable construction
Conductor |
Class 2 stranded copper conductor according to BS EN 60228 |
Insulation |
XLPE (Cross-Linked Polyethylene) |
Bedding |
LSZH (Low Smoke Zero Halogen) Type LTS1 according to BS 7655 |
Armour |
SWA (Steel Wire Armour) |
Sheath |
LSZH (Low Smoke Zero Halogen) Type LTS1 according to BS 7655 |
4.1.2 Electrical Characteristics
Dimensions - BS6724 XLPE/LSZH/SWA/LSZH (Copper)
No. of Cores |
Nominal Cross Sectional Area |
Nominal Thickness of Insulation |
Nominal Overall Diameter mm |
Nominal Weight |
mm² |
mm |
Under Armour |
Overall |
kg/km |
2 |
1.5 |
0.6 |
7.3 |
12.1 |
302 |
2 |
2.5 |
0.7 |
8.5 |
13.6 |
346 |
2 |
4 |
0.7 |
9.4 |
14.7 |
410 |
2 |
6 |
0.7 |
10.5 |
15.9 |
499 |
2 |
10 |
0.7 |
12.3 |
18 |
648 |
2 |
16 |
0.7 |
14.3 |
20.4 |
978 |
2 |
25 |
0.9 |
14.7 |
20.4 |
1290 |
2 |
35 |
0.9 |
16.8 |
23.3 |
1500 |
2 |
50 |
1 |
19 |
25.8 |
1890 |
2 |
70 |
1.1 |
22 |
29 |
2450 |
2 |
95 |
1.1 |
25.1 |
33.1 |
3300 |
2 |
120 |
1.2 |
27.9 |
36.1 |
4020 |
2 |
150 |
1.4 |
30.9 |
39.3 |
4750 |
3 |
1,5 |
0.6 |
7.8 |
12.6 |
330 |
3 |
2.5 |
0.7 |
9.2 |
14.1 |
390 |
3 |
4 |
0.7 |
10 |
15.3 |
464 |
3 |
6 |
0.7 |
11.2 |
16.6 |
568 |
3 |
10 |
0.7 |
13.1 |
19.5 |
866 |
3 |
16 |
0.7 |
15.3 |
21.6 |
1152 |
3 |
25 |
0.9 |
18.9 |
23.6 |
1800 |
3 |
35 |
0.9 |
21.3 |
25.7 |
2230 |
3 |
50 |
1 |
21.7 |
28.5 |
2490 |
3 |
70 |
1.1 |
25.2 |
32.2 |
3290 |
3 |
95 |
1.1 |
28.8 |
37 |
4440 |
3 |
120 |
1.2 |
32 |
40.4 |
5470 |
3 |
150 |
1.4 |
35.9 |
45.5 |
6930 |
3 |
185 |
1.6 |
40 |
49.8 |
8350 |
3 |
240 |
1.7 |
44.9 |
55.1 |
10400 |
3 |
300 |
1.8 |
49.8 |
60.2 |
12600 |
3 |
400 |
2 |
55.8 |
66.6 |
14600 |
4 |
1.5 |
0.6 |
8.5 |
13.3 |
365 |
4 |
2.5 |
0.7 |
9.9 |
15 |
438 |
4 |
4 |
0.7 |
11 |
16.4 |
532 |
4 |
6 |
0.7 |
12.3 |
18.7 |
764 |
4 |
10 |
0.7 |
14.5 |
21.1 |
1013 |
4 |
16 |
0.7 |
17 |
23.4 |
1360 |
4 |
25 |
0.9 |
21 |
26.1 |
2160 |
4 |
35 |
0.9 |
23.6 |
28.6 |
2690 |
4 |
50 |
1 |
25 |
32 |
3130 |
4 |
70 |
1.1 |
29.5 |
37.7 |
4500 |
4 |
95 |
1.1 |
33.3 |
41.7 |
5600 |
4 |
120 |
1.2 |
37.5 |
47.1 |
7400 |
4 |
150 |
1.4 |
41.6 |
51.4 |
8780 |
4 |
185 |
1.6 |
46.4 |
56.6 |
10630 |
4 |
240 |
1.7 |
52.6 |
63 |
13390 |
4 |
300 |
1.8 |
58 |
68.8 |
16290 |
4 |
400 |
2 |
65.4 |
78.1 |
19800 |
5 |
1.5 |
0.6 |
9.7 |
14.3 |
410 |
5 |
2.5 |
0.7 |
11.7 |
16.1 |
470 |
5 |
4 |
0.7 |
13 |
17.8 |
710 |
5 |
6 |
0.7 |
14.5 |
20 |
876 |
5 |
10 |
0.7 |
17.2 |
22.9 |
1165 |
5 |
16 |
0.7 |
20 |
26.6 |
1742 |
5 |
25 |
0.9 |
24.7 |
31.5 |
2323 |
5 |
35 |
0.9 |
27.8 |
34.8 |
2932 |
5 |
50 |
1 |
32.4 |
40.4 |
4192 |
7 |
1.5 |
0.6 |
10.2 |
15.2 |
470 |
7 |
2.5 |
0.7 |
12.3 |
17.1 |
600 |
7 |
4 |
0.7 |
13.6 |
19.1 |
881 |
12 |
1.5 |
0.6 |
13.7 |
19.4 |
780 |
12 |
2.5 |
0.7 |
16.3 |
22.4 |
1000 |
19 |
1.5 |
0.6 |
16.2 |
22.2 |
1000 |
19 |
2.5 |
0.7 |
19.9 |
26.6 |
1540 |
27 |
1.5 |
0.6 |
20 |
26.7 |
1500 |
27 |
2.5 |
0.7 |
24 |
30.7 |
1950 |
37 |
1.5 |
0.6 |
22.3 |
29 |
1800 |
37 |
2.5 |
0.7 |
26.9 |
33.8 |
2350 |
Class 2 Stranded Conductors for Single Core and Multi-Core Cables
Nominal Cross
Sectional Area |
Minimum No. Of Wires In Conductor |
Maximum Resistance
of Conductor At 20ºC |
mm² |
Circular |
Circular Compacted |
Shaped |
Annealed Copper Conductor |
Cu |
Al |
Cu |
Al |
Cu |
Al |
Plain Wires ohms/km |
1.5 |
7 |
- |
6 |
- |
- |
- |
12.1 |
2.5 |
7 |
- |
6 |
- |
- |
- |
7.41 |
4 |
7 |
- |
6 |
- |
- |
- |
4.61 |
6 |
7 |
- |
6 |
- |
- |
- |
3.08 |
10 |
7 |
7 |
6 |
6 |
- |
- |
1.83 |
16 |
7 |
7 |
6 |
6 |
- |
- |
1.15 |
25 |
7 |
7 |
6 |
6 |
6 |
6 |
0.727 |
35 |
7 |
7 |
6 |
6 |
6 |
6 |
0.524 |
50 |
19 |
19 |
6 |
6 |
6 |
6 |
0.387 |
70 |
19 |
19 |
12 |
12 |
12 |
12 |
0.268 |
95 |
19 |
19 |
15 |
15 |
15 |
15 |
0.193 |
120 |
37 |
37 |
18 |
15 |
18 |
15 |
0.153 |
150 |
37 |
37 |
18 |
15 |
18 |
15 |
0.124 |
185 |
37 |
37 |
30 |
30 |
30 |
30 |
0.0991 |
240 |
37 |
37 |
34 |
30 |
34 |
30 |
0.0754 |
4.2 BS 5467 SWA PVC 0.6/1kV Cable
4.2.1 Cable Construction:
Conductor |
Class 2 stranded copper conductor according to BS EN 60228 |
Insulation |
XLPE (Cross-Linked Polyethylene) |
Bedding |
PVC (Polyvinyl Chloride) |
Armour |
SWA (Steel Wire Armour) |
Sheath |
PVC (Polyvinyl Chloride) |
4.2.2 Electrical Characteristics
Dimensions - BS5467 XLPE/PVC/AWA/PVC (Copper)
No. of Cores |
Nominal Cross Sectional Area |
Nominal Thickness of Insulation |
Nominal Overall Diameter mm |
Nominal Weight |
mm² |
mm |
Under Armour |
Overall |
kg/km |
2 |
1.5 |
0.6 |
7.3 |
12.1 |
302 |
2 |
2.5 |
0.7 |
8.5 |
13.6 |
346 |
2 |
4 |
0.7 |
9.4 |
14.7 |
410 |
2 |
6 |
0.7 |
10.5 |
15.9 |
499 |
2 |
10 |
0.7 |
12.3 |
18 |
648 |
2 |
16 |
0.7 |
14.3 |
20.4 |
978 |
2 |
25 |
0.9 |
14.7 |
20.4 |
1290 |
2 |
35 |
0.9 |
16.8 |
23.3 |
1500 |
2 |
50 |
1 |
19 |
25.8 |
1890 |
2 |
70 |
1.1 |
22 |
29 |
2450 |
2 |
95 |
1.1 |
25.1 |
33.1 |
3300 |
2 |
120 |
1.2 |
27.9 |
36.1 |
4020 |
2 |
150 |
1.4 |
30.9 |
39.3 |
4750 |
3 |
1,5 |
0.6 |
7.8 |
12.6 |
330 |
3 |
2.5 |
0.7 |
9.2 |
14.1 |
390 |
3 |
4 |
0.7 |
10 |
15.3 |
464 |
3 |
6 |
0.7 |
11.2 |
16.6 |
568 |
3 |
10 |
0.7 |
13.1 |
19.5 |
866 |
3 |
16 |
0.7 |
15.3 |
21.6 |
1152 |
3 |
25 |
0.9 |
18.9 |
23.6 |
1800 |
3 |
35 |
0.9 |
21.3 |
25.7 |
2230 |
3 |
50 |
1 |
21.7 |
28.5 |
2490 |
3 |
70 |
1.1 |
25.2 |
32.2 |
3290 |
3 |
95 |
1.1 |
28.8 |
37 |
4440 |
3 |
120 |
1.2 |
32 |
40.4 |
5470 |
3 |
150 |
1.4 |
35.9 |
45.5 |
6930 |
3 |
185 |
1.6 |
40 |
49.8 |
8350 |
3 |
240 |
1.7 |
44.9 |
55.1 |
10400 |
3 |
300 |
1.8 |
49.8 |
60.2 |
12600 |
3 |
400 |
2 |
55.8 |
66.6 |
14600 |
4 |
1.5 |
0.6 |
8.5 |
13.3 |
365 |
4 |
2.5 |
0.7 |
9.9 |
15 |
438 |
4 |
4 |
0.7 |
11 |
16.4 |
532 |
4 |
6 |
0.7 |
12.3 |
18.7 |
764 |
4 |
10 |
0.7 |
14.5 |
21.1 |
1013 |
4 |
16 |
0.7 |
17 |
23.4 |
1360 |
4 |
25 |
0.9 |
21 |
26.1 |
2160 |
4 |
35 |
0.9 |
23.6 |
28.6 |
2690 |
4 |
50 |
1 |
25 |
32 |
3130 |
4 |
70 |
1.1 |
29.5 |
37.7 |
4500 |
4 |
95 |
1.1 |
33.3 |
41.7 |
5600 |
4 |
120 |
1.2 |
37.5 |
47.1 |
7400 |
4 |
150 |
1.4 |
41.6 |
51.4 |
8780 |
4 |
185 |
1.6 |
46.4 |
56.6 |
10630 |
4 |
240 |
1.7 |
52.6 |
63 |
13390 |
4 |
300 |
1.8 |
58 |
68.8 |
16290 |
4 |
400 |
2 |
65.4 |
78.1 |
19800 |
5 |
1.5 |
0.6 |
9.7 |
14.3 |
410 |
5 |
2.5 |
0.7 |
11.7 |
16.1 |
470 |
5 |
4 |
0.7 |
13 |
17.8 |
710 |
5 |
6 |
0.7 |
14.5 |
20 |
876 |
5 |
10 |
0.7 |
17.2 |
22.9 |
1165 |
5 |
16 |
0.7 |
20 |
26.6 |
1742 |
5 |
25 |
0.9 |
24.7 |
31.5 |
2323 |
5 |
35 |
0.9 |
27.8 |
34.8 |
2932 |
5 |
50 |
1 |
32.4 |
40.4 |
4192 |
7 |
1.5 |
0.6 |
10.2 |
15.2 |
470 |
7 |
2.5 |
0.7 |
12.3 |
17.1 |
600 |
7 |
4 |
0.7 |
13.6 |
19.1 |
881 |
12 |
1.5 |
0.6 |
13.7 |
19.4 |
780 |
12 |
2.5 |
0.7 |
16.3 |
22.4 |
1000 |
19 |
1.5 |
0.6 |
16.2 |
22.2 |
1000 |
19 |
2.5 |
0.7 |
19.9 |
26.6 |
1540 |
27 |
1.5 |
0.6 |
20 |
26.7 |
1500 |
27 |
2.5 |
0.7 |
24 |
30.7 |
1950 |
37 |
1.5 |
0.6 |
22.3 |
29 |
1800 |
37 |
2.5 |
0.7 |
26.9 |
33.8 |
2350 |
Class 2 Stranded Conductors for Single Core and Multi-Core Cables
Nominal Cross
Sectional Area |
Minimum No. Of Wires In Conductor |
Maximum Resistance
of Conductor At 20ºC |
mm² |
Circular |
Circular Compacted |
Shaped |
Annealed Copper Conductor |
Cu |
Al |
Cu |
Al |
Cu |
Al |
Plain Wires ohms/km |
1.5 |
7 |
- |
6 |
- |
- |
- |
12.1 |
2.5 |
7 |
- |
6 |
- |
- |
- |
7.41 |
4 |
7 |
- |
6 |
- |
- |
- |
4.61 |
6 |
7 |
- |
6 |
- |
- |
- |
3.08 |
10 |
7 |
7 |
6 |
6 |
- |
- |
1.83 |
16 |
7 |
7 |
6 |
6 |
- |
- |
1.15 |
25 |
7 |
7 |
6 |
6 |
6 |
6 |
0.727 |
35 |
7 |
7 |
6 |
6 |
6 |
6 |
0.524 |
50 |
19 |
19 |
6 |
6 |
6 |
6 |
0.387 |
70 |
19 |
19 |
12 |
12 |
12 |
12 |
0.268 |
95 |
19 |
19 |
15 |
15 |
15 |
15 |
0.193 |
120 |
37 |
37 |
18 |
15 |
18 |
15 |
0.153 |
150 |
37 |
37 |
18 |
15 |
18 |
15 |
0.124 |
185 |
37 |
37 |
30 |
30 |
30 |
30 |
0.0991 |
240 |
37 |
37 |
34 |
30 |
34 |
30 |
0.0754 |
300 |
61 |
61 |
34 |
30 |
34 |
30 |
0.0601 |
400 |
61 |
61 |
53 |
53 |
53 |
53 |
0.047 |
Notes
1. Where a conductor operates at a temperature exceeding 70ºC it must be ascertained that the equipment connected to the conductor is suitable for the conductor operating temperature.
2. Where cables in this table are connected to equipment or accessories designed to operate at a temperature not exceeding 70ºC , the current ratings given in the equivalent table for 70ºC thermoplastic insulated cables must be used.
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