Description
- Overall Screen (OS)
- Oil resistant
Standards
International : IEC 60331; IEC 60332-3-22 Cat.ADescription
Applications
These instrumentation and communication cable are used to transmit analogue or digital signals in measurement and process control .They are well adapted to underground use in industrial application where chemical and mechanical protections are needed (refinery areas, chemical plant…). They maintain circuit integrity when exposed to fire.
Design
Conductor:
Stranded bare copper class 2
Insulation:
Silicone rubber (Sil)
Overall screen:
Polyester tape
Tinned copper drain wire
Aluminium backed polyester tape
Bedding (inner sheath):
Low Smoke Zero Halogen (LSZH)
Colour: black
Armour:
Galvanized steel wires (SWA)
Outer sheath:
Polyvinyl chloride (PVC)
Colour: black
Other colour on request.
Core identification
Pair: white - black
Quad: white - black - red - blue (2 pair cables assembled as a quad)
White core printed with pair number
Marking
NEXANS 279 SIL/OA.SCR/LSZH/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)
Characteristics
| Construction characteristics | |
|---|---|
| Conductor material | Bare copper |
| Type of conductor | Stranded, Class 2 |
| Insulation | Silicone rubber |
| Overall screen | Tinned copper drain wire + aluminium/polyester tape |
| Inner sheath | Low smoke, zero halogen thermoplastic compound |
| Armour type | Galvanized steel wires |
| Outer sheath | PVC |
| Protection | Yes |
| Dimensional characteristics | |
| Number of pairs | 5 |
| Conductor cross-section | 2.5mm² |
| Conductor diameter | 1.91mm |
| Diameter over insulation | 3.07mm |
| Diameter over inner sheath | 17.6mm |
| Diameter over armour | 20.1mm |
| Minimum outer diameter | 21.4mm |
| Maximum outer diameter | 24.9mm |
| Approximate weight | 964kg/km |
| Electrical characteristics | |
| Rated Voltage Uo/U (Um) | 170/300V |
| Mechanical characteristics | |
| Mechanical resistance to impacts | Good |
| Usage characteristics | |
| Fire resistant | IEC 60331 |
| Fire retardant | IEC 60332-3-22 |
| Oil resistance | Yes |
| Electro magnetic interference resistance | Yes |
| Operating temperature, range | -20 .. 60°C |
| Max. conductor temperature in service | 90°C |
| Standard | EN |
Docs and info
Selling information
Other fire performances IEC 60332-1 or IEC 60332-3-24(C) and enhanced hydrocarbon resistance on request.
Minimum bending radius:
15 x outer diameter
To be doubled during laying operations
Tinned copper conductors available on request
