Medium Voltage rubber Flexible Cable for reeling Applications
- Flexible cable designed for high mechanical stresses, especially for applications with frequent winding and unwinding with concurrent tensile and torsion stress. The cable is used for conveyors, container cranes,
- Specially designed flexible reeling cable with optimised dimensions for extremely high mechanical stresses.
- Occur in applications with monospiral reels and cylindrical reels, very high reeling speed, torsional stress.
- Also for connection of large material handling machines such as excavators, dumpers, crushers in open-cast mines.
- For use in wet or dry conditions, in industrial units, in underground and open-cast mining, in explosion-risk
- areas.
Design Features
| Conductors | Annealed flexible stranded tinned or bare copper conductor class 5 to IEC 60228. Type of conductor design: opposite-lay with special length of lay. |
| Separator | Semi-conductive tape between the power conductor and insulation and between earth conductor and semi-conductive layer |
| Conductor screen | Semi-conductive layer of special rubber |
| Insulation | Semi-conductive, special strippable layer over insulation of power cores. Maximum resistivity of semi-conductive layers -200 [Ω x m] |
| Earth conductor | Tinned or bare copper conductor class 5 to IEC 60228 with extruded special semi-conductive rubber compound |
| Core arrangement | Power conductors and earth conductor (split into 3 parts) laid up around central semi-conductive filler. Anti-adhesion graphite over assembled conductors |
| Inner sheath | A special synthetic thermosetting compound type 5GM3 acc. to DIN VDE 0207/21, Red |
| Anti-torsion braid | Braid of polyamide threads between inner and outer sheath |
| Outer sheath | Special synthetic thermosetting compound, type 5GM5 acc. to DIN VDE 0207/21, Red |
Features
| Rated voltage | 3.6/6 6/10 8.7/15 12/20 kV |
| Max operating voltage | 7.2 12 18 24 kV |
| AC test voltage | 11 17 24 29 kV |
| Current carrying capacity | DIN VDE 0298-4 |
| Max conductor operating temperature | +90°C |
| Max. conductor temperature during short circuit | +250°C |
| Minimum ambient temperature for fixed installation | -40°C |
| Minimum ambient temperature for mobile installation | -25°C |
| Oil resistance | PN-EN 60811-404, IEC 60811-404 |
| UV resistance | UL 2556, ISO 4892-2 |
| Twist limits | 100˚/m |
| Ozone resistant | PN-ISO 1431-1 |
| Travel speed | 180 m/min |
| Tensile load | 20 N/mm2 |
| Flame propagation | PN-EN 60332-1-2, IEC 60332-1-2 |
Technical Specifications
power Conductor Resistance
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