BS 6724

STANDARD: BS 6724
VOLTAGE RATING: 600/1000V
APPLICATION:
Industrial wiring and mains distribution, where smoke and acid gas emission would pose a major hazard in the event of fire. Can be laid direct in the ground, or in ducts, clipped to surface, on trays or in free air. May be embedded in concrete.
CONSTRUCTION:
Single, Two, Three, Four and Five core cables. Stranded plain copper conductors, XLPE insulated, cores laid up, extruded Zero Halogen, Low Smoke inner sheath, galvanised steel wire armoured with left hand lay(Non magnetic Aluminium wires for single cores) and Zero Halogen, Low Smoke outer sheath.
CORE COLOURS:
Single core: Brown or Blue.
Two core: Brown and Blue.
Three core: Brown, Black and Grey.
Four core: Brown, Black, Grey and Blue.
Five core: Brown, Black, Grey, Green/Yellow and Blue and/or white cores with black numbers as alternative to coloured.
Seven – Forty eight core: white core with black numbers.
SHEATH COLOURS: Black with other colours available subject to MMQ.
MINIMUM BENDING RADIUS: 6D circular conductors. 8D shaped conductors.
MAXIMUM CONDUCTOR TEMPERATURE: 90°C.
Note: Where a conductor operates at a temperature exceeding 70°C it shall be ascertained that the equipment connected to the conductor is suitable for the conductor operating temperature (see regulation 512-1-2 of BS7671, the 17th Edition of IEE Wiring Regulations).
CURRENT RATING: Refer to table 4E4A or 4E4B of BS7671.
FIRE PERFORMANCE CHARACTERISTICS:
Smoke emission: IEC 61034, BS EN 50268
Acid gas emission: IEC 60754-1, BS EN 50267
Flame propagation: IEC 60332-1, IEC 60332-3, BS EN 50265, BS EN 50266 Categories C & A.
|
Reference Number |
Nominal area of conductor |
Insulation Thickness |
Armour wire diameter | Approx. diameter under armour | Approx. overall diameter | Approx cable weight |
Max resistance of cable DC at 20ºC |
Max resistance of cable AC at 90ºC |
Reactance @50Hz |
Impedance AC @ 90ºC |
Star capacitance | Maximum armour resistance at 20ºC |
| mm2 | Mm | Mm | Mm | mm | Kg/km | Ω/km | Ω/km | Ω/km | Ω/km | µF/km | Ω/km | |
| Single Core Aluminium Wire Armour 694AWLSH |
#50 #70 #95 #120 #150 *185 *240 *300 *400 *500 *630 *800 *1000 |
1.0 1.1 1.1 1.2 1.4 1.6 1.7 1.8 2.0 2.2 2.4 2.6 2.8 |
0.9 1.25 1.25 1.25 1.6 1.6 1.6 1.6 2.0 2.0 2.0 2.5 2.5 |
12.7 14.7 16.6 18.5 20.8 23.2 26.0 28.6 32.4 36.0 40.4 45.6 50.6 |
17.5 20.2 22.3 24.2 27.4 30.0 32.8 35.6 40.4 44.2 48.8 55.4 60.6 |
800 960 1240 1510 1900 2320 2930 3580 4600 5770 7250 9381 11540 |
0.3870 0.2680 0.1930 0.1530 0.1240 0.0991 0.0754 0.0601 0.0470 0.0366 0.0283 0.0221 0.0176 |
0.4938 0.3410 0.2469 0.1962 0.1594 0.1280 0.0985 0.0797 0.0635 0.0513 0.0419 0.0349 0.0303 |
0.104 0.101 0.097 0.094 0.095 0.093 0.090 0.088 0.089 0.087 0.085 0.087 0.085 |
0.505 0.356 0.265 0.217 0.186 0.158 0.134 0.119 0.109 0.101 0.095 0.094 0.090 |
0.41 0.46 0.53 0.56 0.52 0.54 0.59 0.63 0.62 0.66 0.70 0.85 0.87 |
1.30 0.75 0.67 0.61 0.42 0.38 0.34 0.31 0.22 0.20 0.18 0.13 0.12 |
| Two Core Steel Wire Armour 6942LSH |
*1.5 *2.5 *4 *6 #10 #16 25 35 50 70 95 120 150 185 240 300 400 |
0.6 0.7 0.7 0.7 0.7 0.7 0.9 0.9 1.0 1.1 1.1 1.2 1.4 1.6 1.7 1.8 2.0 |
0.9 0.9 0.9 0.9 0.9 1.25 1.25 1.6 1.6 1.6 2.0 2.0 2.0 2.5 2.5 2.5 2.5 |
7.3 8.5 9.4 10.5 12.3 14.9 14.7 16.8 19.0 22.0 25.1 27.9 30.9 34.9 39.0 43.3 48.4 |
12.3 13.6 14.7 15.9 18.0 20.4 20.4 23.3 25.8 29.0 33.1 36.1 39.3 44.7 49.0 53.5 59.0 |
305 354 416 507 647 993 1290 1500 1890 2450 3300 4020 4750 6180 7570 9180 10500 |
12.1000 7.4100 4.6100 3.0800 1.8300 1.1500 0.7270 0.5240 0.3870 0.2680 0.1930 0.1530 0.1240 0.0991 0.0754 0.0601 0.0470 |
15.4280 9.4480 5.8780 3.9270 2.3330 1.4660 0.9260 0.6685 0.4940 0.3412 0.2471 0.1964 0.1597 0.1284 0.0989 0.0801 0.0641 |
0.104 0.101 0.099 0.094 0.093 0.088 0.082 0.077 0.076 0.075 0.074 0.072 0.073 0.073 0.072 0.072 0.071 |
15.428 9.449 5.879 3.927 2.335 1.469 0.930 0.673 0.500 0.349 0.258 0.209 0.176 0.148 0.122 0.107 0.096 |
0.23 0.25 0.27 0.30 0.32 0.35 0.38 0.42 0.45 0.49 0.55 0.57 0.57 0.55 0.60 0.62 0.64 |
10.20 8.80 7.90 7.00 6.00 3.70 3.70 2.60 2.30 2.00 1.40 1.30 1.20 0.82 0.73 0.67 0.59 |
| Three Core Steel Wire Armour 6943LSH |
*1.5 *2.5 *4 *6 #10 #16 #25 #35 50 70 95 120 150 185 240 300 400 |
0.6 0.7 0.7 0.7 0.7 0.7 0.9 0.9 1.0 1.1 1.1 1.2 1.4 1.6 1.7 1.8 2.0 |
0.9 0.9 0.9 0.9 1.25 1.25 1.6 1.6 1.6 1.6 2.0 2.0 2.5 2.5 2.5 2.5 2.5 |
7.8 9.2 10.0 11.2 13.1 15.3 18.9 21.3 21.7 25.2 28.8 32.0 35.9 40.0 44.9 49.8 55.8 |
12.6 14.1 15.3 16.6 19.5 21.6 25.5 28.0 28.5 32.2 37.0 40.4 45.5 49.8 55.1 60.2 66.6 |
335 388 471 576 884 1159 1800 2230 2490 3290 4440 5470 6930 8350 10400 12600 14600 |
12.1000 7.4100 4.6100 3.0800 1.8300 1.1500 0.7270 0.5240 0.3870 0.2680 0.1930 0.1530 0.1240 0.0991 0.0754 0.0601 0.0470 |
15.4280 9.4480 5.8780 3.9270 2.3330 1.4660 0.9260 0.6685 0.4940 0.3412 0.2471 0.1964 0.1597 0.1284 0.0989 0.0801 0.064 |
0.104 0.101 0.099 0.094 0.093 0.088 0.082 0.077 0.076 0.075 0.074 0.072 0.073 0.073 0.072 0.072 0.071 |
15.428 9.449 5.879 3.928 2.335 1.469 0.930 0.673 0.500 0.349 0.258 0.209 0.176 0.148 0.122 0.107 0.096 |
0.23 0.25 0.27 0.30 0.32 0.35 0.37 0.42 0.45 0.49 0.55 0.57 0.55 0.55 0.60 0.62 0.64 |
9.50 8.20 7.50 6.70 4.00 3.50 2.50 2.30 2.00 1.80 1.30 1.20 0.78 0.71 0.63 0.58 0.52 |
| Four Core Steel Wire Armour 6944LSH |
*1.5 *2.5 *4 *6 #10 #16 #25 #35 50 70 95 120 150 185 240 300 400 |
0.6 0.7 0.7 0.7 0.7 0.7 0.9 0.9 1.0 1.1 1.1 1.2 1.4 1.6 1.7 1.8 2.0 |
0.9 0.9 0.9 1.25 1.25 1.25 1.6 1.6 1.6 2.0 2.0 2.5 2.5 2.5 2.5 2.5 3.15 |
8.5 9.9 11.0 12.3 14.5 17.0 21.0 23.6 25.0 29.5 33.3 37.5 41.6 46.4 52.6 58.0 65.4 |
13.5 15.0 16.4 18.7 21.1 22.9 27.6 30.4 32.0 37.7 41.7 47.1 51.4 56.6 63.0 68.8 78.1 |
365 438 532 764 1013 1360 2160 2690 3130 4500 5600 7400 8780 10630 13390 16290 19800 |
12.1000 7.4100 4.6100 3.0800 1.8300 1.1500 0.7270 0.5240 0.3870 0.2680 0.1930 0.1530 0.1240 0.0991 0.0754 0.0601 0.0470 |
15.4280 9.4480 5.8780 3.9270 2.3330 1.4660 0.9260 0.6685 0.4940 0.3412 0.2471 0.1964 0.1597 0.1284 0.0989 0.0801 0.0641 |
0.104 0.101 0.099 0.094 0.093 0.088 0.082 0.077 0.076 0.075 0.074 0.072 0.073 0.073 0.072 0.072 0.071 |
15.428 9.449 5.879 3.928 2.336 1.469 0.930 0.673 0.500 0.349 0.258 0.209 0.176 0.148 0.122 0.107 0.096 |
0.23 0.25 0.27 0.30 0.32 0.35 0.37 0.42 0.45 0.48 0.55 0.55 0.55 0.55 0.58 0.62 0.63 |
8.80 7.70 6.80 4.30 3.70 3.10 2.30 2.00 1.80 1.20 1.10 0.76 0.68 0.61 0.54 0.49 0.35 |
| Five Core Steel Wire Armour 6945LSH |
*1.5 *2.5 *4 *6 #10 #16 #25 #35 #50 #70 |
0.6 0.7 0.7 0.7 0.7 0.7 0.9 0.9 1.0 1.1 |
0.9 0.9 0.9 1.25 1.25 1.6 1.6 1.6 2.0 2.0 |
9.7 11.7 13.0 14.5 17.2 20.0 24.7 27.8 32.4 37.9 |
14.3 16.3 17.8 20.0 22.9 26.6 31.5 34.8 40.4 46.3 |
410 470 710 876 1165 1742 2323 2932 4192 5336 |
12.1000 7.4100 4.6100 3.0800 1.8300 1.1500 0.7270 0.5240 0.3870 0.2680 |
15.4280 9.4480 5.8780 3.9270 2.3330 1.4660 0.9260 0.6685 0.4940 0.3412 |
0.104 0.101 0.099 0.094 0.093 0.088 0.082 0.077 0.076 0.075 |
15.428 9.449 5.879 3.928 2.336 1.469 0.930 0.673 0.500 0.349 |
0.23 0.25 0.27 0.30 0.32 0.35 0.37 0.42 0.45 0.48 |
8.20 6.80 6.20 3.90 3.40 2.20 1.80 1.60 1.10 0.90 |
* Circular non compacted conductors
# Compacted circular conductors


