BS 6708 Type 630, Type 631 Mining Cable

Used for supplying excavating, crushing machines and equipment.

Rated voltage3800/6600 V
ConductorElectrolytic, stranded, tinned copper wire IEC 60228 Class 5
InsulationEPR
Outer sheathHeavy duty chloroprene outer sheath.
  • Quoted to your quantity
  • Documentation on request
  • International delivery

Product Overview

Used for supplying excavating, crushing machines and equipment.

Technical Specifications

Rated voltage3800/6600 V
ConductorElectrolytic, stranded, tinned copper wire IEC 60228 Class 5
InsulationEPR
Outer sheathHeavy duty chloroprene outer sheath.
ScreenTinned copper / Nylon braided screen over phase cores. Ground core in Type 631 is not screened.
LayupAll cores are laid up in contact with each other.
BeddingRubber based bedding compound.
ArmourGalvanized steel pliable armour.
Related standardsBS 6708
Test voltage15 kV
Cross Section3×353×503×703×953×1203×1503×50+353×70+50
Phase Conductors
Number and cross sectionmm23×353×503×703×953×1203×1503×503×70
Insulation thicknessmm5.05.05.05.05.05.05.05.0
Pilot Conductor
Number and cross sectionmm2––––––1×351×50
Strandingmm––––––276/0,40396/0,40
Conductor diameterNom. mm––––––8.4010.10
Insulation thicknessmm––––––5.05.0
Cable details
Radial thickness of inner sheathmm3.83.85.05.05.05.05.05.0
Min. inner sheath diametermm53.16.067.072.375.580.065.470.5
Max. inner sheath diametermm56.160.067.072.375.580.069.274.3
Size of armourmm7/0,907/0,907/1,257/1,257/1,257/1,257/0,907/1,25
Outer sheath thicknessmm6.06.36.87.37.68.06.97.4
Min. overall diametermm70.575.085.190.694.499.686.792.8
Max. overall diametermm74.579.384.994.998.7103.991.097.1
Min. bending radiusmm8949521.0191.1391.1851.2471.0921.166
Appx. cable weightkg/km8.49.8512.0513.8519.221.212.114.25
Copper weightkg/km1.011.452.022.753.464.332.13.1
Electrical details
“Continuous current rating at 25°C Ambient”A135170205250295320170205
Max. DC resistance at 20°C
Phase conductorsΩ /km0.5650.3930.2770.2100.1640.1320.3930.277
Earth conductorΩ /km––––––0.5650.393
ArmourΩ /km0.760.710.460.430.410.390.450.42
3 screens in parallel connectionΩ /km0.100.880.720.780.620.670.450.42

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