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Application
For underground mines as well as in tunnels, if monitoring of outer damages is required. Used for the connection of mobile operating equipment, in mines and underground excavations with hazardous environment, in stationary operation e.g., high-voltage transformers in tunnelling.
PVC inner sheath, control-core and additional pilot cores, steel wire braid and PVC sheath.
Design
Phase cores
Copper, plain, flexible stranded acc. to DIN EN 60228 class 5;
- inner semi-conductive stress control layer
- EPR-rubber insulation acc. DIN VDE 0207 part 20
- outer semi-conductive insulation shield layer
Protective conductor
Cross-section symmetrically split on each core made of plain copper wires, covering min. 80 %, colour: black with white no.1-3
Pilot cores
Copper, plain, flexible stranded acc. to DIN EN 60228 class 5, EPR-rubber core colour coding acc. DIN VDE 0293-308
Inner sheath 1
Bedding with plastic or elastic material filling the interstices and PVC sheath
Concentrical monitoring screen
Plain copper wires, DC resistance 3.30 Ohm/km at 20 °C
Inner sheath 2
PVC compound type DMV6 acc. to DIN VDE 0276-603
Armour
galvanized steel wire braid, covering min. 75 %
Outer sheath
PVC compound type DMV6 acc. to DIN VDE 0276-603
Marking
Embossed marking e.g.:
RHEYFIRM N3GHSSYCY 3x95+3x50/3E+3x2.5ST+UEL 3.6/6 kV I NEXANS I
< VDE > year
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