BS 6708 Type 621 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.
LayupCores are laid up over each other.
BeddingRubber based bedding compound.
ArmourGalvanized steel pliable armour.
Related standardsBS 6708
Test voltage15 kV
Cross Section4×354×504×704×954×1204×150
Conductors
Number and cross sectionmm24×354×504×704×954×1204×150
Insulation thicknessmm5.05.05.05.05.05.0
Cable details
Radial thickness of inner sheathmm3.85.05.05.05.05.0
Min. inner sheath diametermm53.860.565.670.774.379.2
Max. inner sheath diametermm56.863.569.474.578.183.2
Size of armourmm7/0,907/1,257/1,257/1,257/1,257/1,25
Outer sheath thicknessmm6.06.37.07.57.88.3
Min. overall diametermm71.281.087.193.297.4103.3
Max. overall diametermm75.285.391.497.5101.7107.6
Min. bending radiusmm7528539149751.0171.076
Appx. cable weightkg/km8.911.11314.0520.622
Copper weightkg/km1.351.952.73.74.655.8
Electrical details
“Continuous current rating at 25°C Ambient”A135170205250295320
Max. DC resistance at 20°C
ConductorsΩ /km0.5650.3930.2770.2100.1640.132
ArmourΩ /km0.70.50.430.390.380.35

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