Applications

For connection of mobile machines with very high mechanical load, especially in mines, e.g. for coal cutting machines. Suited in particular for extreme bending stressing with low tensile stress.The cable meets requirements given in test standards DIN VDE 0472, Part 818 “ behaviour under clamping stress”. It secures that a damage produced by clamping is detected as an earth fault with maximum possible probability.

For the connection of mobile machines under extremely high mechanical loads, mainly in mining situations, e.g. for coal-cutting machines, free trailing applications, particularly suitable for extreme bending loads, high tensile stress and impact and crushing loads. The torsion and tensile-stress-resistant armour, in conjunction with the high flexibility of the cable, also allows the cable to be operated via guide pulleys or used as a reeling cable on Load-Haul-Dumpers (LHDs). The phase-concentric monitoring shield and the common-concentric earth conductor, in conjunction with appropriate monitoring equipment, make it possible to monitor the cable for insulation faults and damage resulting from external influences. The cable can be supplied with 2, 3 or 6 pilot cores.

Construction

Standards : VDE 0250 Part 812
Conductor (1) :Tinned copper, extra fine stranded (class 5) according to DIN VDE 0295
Separator (2) : Polyester tape
Insulation (3) : Rubber, compound type 3GI3 acc. to DIN VDE 0207 part 20
Special pilot/earth core element (4) : Copper and steel conductor capable of expansion and compression covered with EPR insulation. Earth core as a spiral of tinned copper bunches covered with semi conductive tape
Inner sheath (5) : Semi conductive inner sheath
Reinforcement (6) : Steel wire braid
Outer sheath (7) : Outer sheath of black chlorinated rubber compound 5GM5, abrasion and tear-resistant, oil-resistant and flame retardant
Core arrangement (8) : Cores lay up around semi conductive cradle with centre Kevlar rope

Technical data

Nominal voltage U0/U	0.6/1 kV
Permissible surface temperature	fixed installation: -40°C to +80°C moved: -25°C to +80°C
Max. conductor temperature	in service: + 90°C in case of short circuit: + 200°C
Bending radius	moved min.: 3 X D* fixed min.: 2 X D* in guide pulleys and on drums 4.5XD* *D | cable diameter
Core colours	brown, black, grey
Sheath colours	black, other colours available

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