Applications
These instrumentation and communication cables are used to transmit analogue or digital signals in measurement and process control. They are well adapted to underground use in industrial applications, in moist areas, where hydrocarbon and mechanical protection are needed. The lead cover brings an enhanced resistance to aromatics hydrocarbons. The individual screening of each pair limits the consequence of crosstalk. They maintain circuit integrity when exposed to fire.
Design
Conductor:
Stranded bare copper class 2
Insulation:
Mica tape
Cross-linked polyethylene (XLPE)
Individual screen:
Polyester tape
Tinned copper drain wire
Aluminium backed polyester tape
Polyester tape
Overall screen:
Polyester tape
Tinned copper drain wire,
Aluminium backed polyester tape
Inner sheath:
Low Smoke Zero Halogen (LSZH)
Colour: black
Lead sheath
Bedding (intermediate sheath):
Polyvinyl chloride (PVC)
Colour: black
Armour:
Galvanized steel wires (SWA)
Outer sheath:
Polyvinyl chloride (PVC)
Colour: black
Other colour on request.
Core identification
Pair: white - black
White core printed with pair number
Marking
NEXANS 279 MGT/XLPE/IND.+OA.SCR/LSZH//LC/PVC/SWA/PVC 170/300V Nber of pairs & cross-section Cu IEC 60331 IEC 60332-3-22(A) MM YYYY Manufacturing number + metric marking
Standards
EN 50288-7 (Design guide-lines)
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