APPLICATION
Used for supplying excavating, crushing machines and equipment, as well as coalface lighting.
CONDUCTOR : Electrolytic, stranded, tinned copper wire IEC 60228 Class 5
INSULATION : EPR
SCREEN : Tinned copper / Nylon braided screen over phase and pilot cores
LAYUP : All cores are laid up in contact with each other.
BEDDING : Rubbe based bedding compound.
ARMOUR : Galvanized steel pliable armour.
OUTER SHEATH : Heavy duty chloroprene outer sheath.
RELATED STANDARDS : BS 6708
RATED VOLTAGE : 640/1100 V
TEST VOLTAGE : 2,5 kV
| Cross Section | 2×4 | 3×4 | 4×4 | |
|---|---|---|---|---|
| Conductors | ||||
| Number and cross section | mm2 | 2×4 | 3×4 | 4×4 |
| Insulation diameter | Nom. mm | 4.80 | 4.80 | 4.80 |
| Screen diameter | Nom. mm | 6.00 | 6.00 | 6.00 |
| Cable details | ||||
| Min. inner sheath diameter | mm | 16.2 | 17.1 | 18.7 |
| Max. inner sheath diameter | mm | 18.2 | 19.1 | 20.7 |
| Min. overall diameter | mm | 23.9 | 24.8 | 26.4 |
| Max. overall diameter | mm | 26.4 | 27.3 | 29.9 |
| Min. bending radius | mm | 270 | 280 | 290 |
| Max. pulling tension | kgf | 48 | 72 | 96 |
| Appx. cable weight | kg/km | 1.08 | 1.23 | 1.4 |
| Copper weight | kg/km | 132 | 200 | 264 |
| Electrical details | ||||
| “Continuous current rating at 25°C Ambient” |
A | 28 | 28 | 28 |
| Max. DC resistance at 20°C | ||||
| Phase Conductor | Ω /km | 5.09 | 5.09 | 5.09 |
| screens in parallel connection | Ω /km | 5.5 | 3.9 | 2.8 |
| Armour | Ω /km | 4.91 | 4.63 | 4.16 |
| Nom. reactance at 50Hz | Ω /km | 0.119 | 0.119 | 0.119 |
| Nom. reactance at 60Hz | Ω /km | 0.143 | 0.143 | 0.143 |
| Min. insulation resistance at 20°C |
M Ω /km | 590 | 590 | 590 |
| 3 phase voltage drop on full load current |
mV/A/m | 12,38* | 10.72 | 10.72 |
