BS 7846-F120 Fire Resistant to: BS 8491-120 mins, BS 6387 CAT CWZ, BS 8519 Cat3 Flame Retardant to: IEC 60332-3 Cat C, IEC 60332-1-2 Low Smoke Zero Halogen to: IEC 60754-1/2, IEC 61034-1/2
APPLICATION
These armoured fire performance power cables are fire resistant and designed for direct impact. Designed to meet the application of fire, direct impact and water jet as specified in BS 8491, making them suitable for use as 120 minute rated category 3 power cables according to BS 8519.
STANDARDS
CHARACTERISTICS
Voltage Rating Uo/U : 0.6/1kV
Operating Temperature : -20ºC to +90ºC
Minimum Bending Radius : During Installation: 8 x overall diameter
CONSTRUCTION
| Conductor : | Class 2 stranded copper | ||
| Fire Barrier | MGT (Mica Glass Tape) | ||
| Insulation : | XLPE (Cross-Linked Polyethylene) | ||
| Inner Barrier : | Glass Tape | ||
| Bedding | LSZH (Low Smoke Zero Halogen) | ||
| Armour | SWA (Galvanised Steel Wire Armour) | ||
| Outr Sheath : | Glass Tape | ||
| Sheath | LSZH (Low Smoke Zero Halogen) | ||
| Core Identification : | 2 core : Brown Blue 3 core: Brown Black Grey 4 core: Brown Black Grey Blue 5 core: B Brown Black Grey Blue Green/Yellow |
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| Sheath Colour : | Black | ||
DIMENSIONS
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² |
INSULATION RADIAL THICKNESS mm |
GALVANISED STEEL ARMOUR WIRE DIAMETER mm |
OUTER SHEATH RADIAL THICKNESS mm |
OUTER SHEATH DIAMETER mm |
NOMINAL WEIGHT kg/km |
| 2 | 4 | 0/7 | 1/25 | 1/4 | 23/9 | 950 |
| 2 | 6 | 0/7 | 1/25 | 1/4 | 25/1 | 1100 |
| 2 | 10 | 0/7 | 1/25 | 1/5 | 26/4 | 1200 |
| 2 | 16 | 0/7 | 1/25 | 1/5 | 28/3 | 1400 |
| 2 | 25 | 0/9 | 1/25 | 1/6 | 31/4 | 1800 |
| 2 | 35 | 0/9 | 1/6 | 1/7 | 34/1 | 2250 |
| 3 | 4 | 0/7 | 1/25 | 1/4 | 23/4 | 950 |
| 3 | 6 | 0/7 | 1/25 | 1/4 | 24/7 | 1100 |
| 3 | 10 | 0/7 | 1/25 | 1/5 | 25/2 | 1200 |
| 3 | 16 | 0/7 | 1/25 | 1/6 | 27/4 | 1500 |
| 3 | 25 | 0/9 | 1/6 | 1/7 | 31/7 | 2000 |
| 3 | 35 | 0/9 | 1/6 | 1/8 | 34 | 2500 |
| 3 | 50 | 1 | 1/6 | 1/8 | 32/7 | 2750 |
| 3 | 70 | 1/1 | 1/6 | 1/9 | 36/4 | 3500 |
| 3 | 95 | 1/1 | 2 | 2/1 | 41 | 4750 |
| 3 | 120 | 1/2 | 2 | 2/2 | 44/5 | 5500 |
| 3 | 150 | 1/4 | 2/5 | 2/3 | 49/3 | 7000 |
| 3 | 185 | 1/6 | 2/5 | 2/4 | 53/4 | 8250 |
| 3 | 240 | 1/7 | 2/5 | 2/6 | 58/7 | 10500 |
| 3 | 300 | 1/8 | 2/5 | 2/7 | 63/7 | 12500 |
| 3 | 400 | 2 | 2/5 | 2/9 | 71/1 | 15500 |
| 4 | 4 | 0/7 | 1/25 | 1/4 | 24/7 | 1100 |
| 4 | 6 | 0/7 | 1/25 | 1/5 | 26/2 | 1200 |
| 4 | 10 | 0/7 | 1/25 | 1/5 | 27/8 | 1500 |
| 4 | 16 | 0/7 | 1/25 | 1/6 | 29/3 | 1700 |
| 4 | 25 | 0/9 | 1/6 | 1/7 | 34 | 2500 |
| 4 | 35 | 0/9 | 1/6 | 1/8 | 35/2 | 3000 |
| 4 | 50 | 1 | 1/6 | 1/9 | 36/6 | 3250 |
| 4 | 70 | 1/1 | 2 | 2/1 | 40/3 | 4500 |
| 4 | 95 | 1/1 | 2 | 2/2 | 44/6 | 5750 |
| 4 | 120 | 1/2 | 2/5 | 2/3 | 49/5 | 7250 |
| 4 | 150 | 1/4 | 2/5 | 2/4 | 54 | 8500 |
| 4 | 185 | 1/6 | 2/5 | 2/6 | 58/8 | 10500 |
| 4 | 240 | 1/7 | 2/5 | 2/7 | 64/8 | 13000 |
| 4 | 300 | 1/8 | 2/5 | 2/9 | 71/7 | 16000 |
| 4 | 400 | 2 | 3/15 | 3/2 | 82/5 | 21000 |
| 5 | 4 | 0/7 | 1/25 | 1/4 | 26/3 | 1200 |
| 5 | 6 | 0/7 | 1/25 | 1/5 | 27/9 | 1400 |
| 5 | 10 | 0/7 | 1/25 | 1/5 | 29/7 | 1700 |
| 5 | 16 | 0/7 | 1/25 | 1/6 | 32/2 | 2250 |
CONDUCTORS
| NOMINAL CROSS SECTIONAL AREA mm2 |
MAXIMUM RESISTANCE OF CONDUCTOR AT 20ºC ohms/km |
|||||
| 4 | 4/61 | |||||
| 6 | 3/08 | |||||
| 10 | 1/83 | |||||
| 16 | 1/15 | |||||
| 25 | 0/727 | |||||
| 35 | 0/524 | |||||
| 50 | 0/387 | |||||
| 70 | 0/268 | |||||
| 95 | 0/193 | |||||
| 120 | 0/153 | |||||
| 150 | 0/124 | |||||
| 185 | 0/0991 | |||||
| 240 | 0/0754 | |||||
| 300 | 0/0601 | |||||
| 400 | 0/047 | |||||
ELECTRICAL CHARACTERISTICS
Current Carrying Capacity
| NOMINAL CROSS SECTIONAL AREA mm² |
2 CORE | 3 AND 4 CORE | ||||
| Single-Phase | Three-Phase | |||||
| Laid Direct Amps |
In Ducts Amps |
In Air Amps |
Laid Direct Amps |
In Ducts Amps |
In Air Amps |
|
| 4 | 65 | 53 | 55 | 55 | 45 | 47 |
| 6 | 81 | 67 | 70 | 69 | 56 | 59 |
| 10 | 109 | 89 | 95 | 92 | 75 | 82 |
| 16 | 141 | 115 | 126 | 119 | 96 | 107 |
| 25 | 183 | 148 | 164 | 152 | 124 | 140 |
| 35 | 219 | 178 | 202 | 182 | 149 | 172 |
| 50 | 259 | 211 | 244 | 217 | 177 | 209 |
| 70 | 317 | 260 | 306 | 266 | 218 | 263 |
| 95 | 381 | 313 | 378 | 319 | 263 | 324 |
| 120 | 433 | 357 | 437 | 363 | 300 | 346 |
| 150 | 485 | 401 | 499 | 409 | 338 | 430 |
| 185 | 547 | 455 | 576 | 458 | 382 | 495 |
| 240 | 632 | 527 | 680 | 529 | 442 | 584 |
| 300 | 708 | 592 | 775 | 592 | 496 | 672 |
| 400 | 799 | 669 | 892 | 667 | 570 | 766 |
Voltage Drop
| NOMINAL CROSS SECTIONAL AREA mm² |
DC M/V/A/M |
SINGLE-PHASE AC M/V/A/M |
THREE-PHASE AC M/V/A/M |
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| 4 | 12 | 12 | 10 | |||
| 6 | 7/9 | 7/9 | 6/8 | |||
| 10 | 4/7 | 4/7 | 4 | |||
| 16 | 2/9 | 2/9 | 2/5 | |||
| 25 | 1/85 | 1/9 | 1/65 | |||
| 35 | 1/35 | 1/35 | 1/15 | |||
| 50 | 0/98 | 1 | 0/87 | |||
| 70 | 0/97 | 0/69 | 0/6 | |||
| 95 | 0/49 | 0/52 | 0/45 | |||
| 120 | 0/39 | 0/42 | 0/37 | |||
| 150 | 0/31 | 0/35 | 0/3 | |||
| 185 | 0/25 | 0/29 | 0/26 | |||
| 240 | 0/195 | 0/24 | 0/21 | |||
| 300 | 0/155 | 0/21 | 0/185 | |||
