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BS 6708 TYPE 211

Mining Certficated Cables

Certificates :

APPLICATION

Used for supplying excavating, crushing machines
and equipment.

CONDUCTOR : Electrolytic, stranded, tinned copper wire IEC 60228 Class 5
INSULATION : EPR
SCREEN : Tinned copper / Nylon braided screen over phase cores. Ground core is not screened.
LAYUP : All cores are laid up in contact with each other.
BEDDING : Rubber 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 : 3 kV

Cross Section3×10+103×16+163×25+163×35+253×50+353×70+503×95+703×120+70
Phase Conductors
Number and cross sectionmm23×103×163×253×353×503×703×953×120
Strandingmm80/0,40126/0,40196/0,40276/0,40396/0,40360/0,50475/0,50608/0,50
Conductor diameterNom. mm4.405.507.108.4010.1011.9013.9015.50
Insulation thicknessmm1.51.51.61.61.71.82.02.2
Phase Conductors
Number and cross sectionmm21×101×161×161×251×351×501×701×70
Strandingmm80/0,40126/0,40126/0,40196/0,40276/0,40396/0,40360/0,50360/0,50
Conductor diameterNom. mm4.405.505.507.108.4010.1011.9011.90
Insulation thicknessmm1.51.51.51.61.61.71.81.8
Cable details
Radial thickness of inner sheathmm2.52.52.52.52.53.85.05.0
Min. inner sheath diametermm27.931.635.438.843.751.860.364.9
Max. inner sheath diametermm29.933.637.440.846.254.863.367.9
Size of armourmm7/0,717/0,717/0,717/0,717/0,907/0,907/1,257/1,25
Outer sheath thicknessmm3.84.14.44.85.35.86.46.9
Min. overall diametermm39.844.048.552.759.768.880.686.2
Max. overall diametermm42.346.851.356.563.572.884.990.5
Min. bending radiusmm423468513565635728849905
Appx. cable weightkg/km3.053.924.785.87.0810.5516.6519
Copper weightkg/km5848951.1641.6082.1963.0364.0284.758
Electrical details
“Continuous current
rating at 25°C Ambient”
A6385110135170205250295
Max. DC resistance at 20°C
Phase conductorsΩ /km1.951.240.7950.5650.3930.2770.2100.164
Earth conductorΩ /km1.951.241.240.7950.5650.3930.2770.277
ArmourΩ /km1.811.631.451.030.7150.5040.3820.299
3 screens in parallel connectionΩ /km1.331.611.101.201.400.700.850.50
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