EN 50288-7 Silicone OS Armoured 20x2x0,5

Description

Description

Standards

  • Test
    IEC 60331; IEC 60332-3-22 Cat.A

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

Characteristics

Construction 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

Dimensional characteristics

Number of pairs
20
Conductor cross-section
0.5 mm²
Conductor diameter
0.9 mm
Diameter over insulation
2.06 mm
Diameter over inner sheath
21.9 mm
Diameter over armour
24.4 mm
Minimum outer diameter
25.0 mm
Maximum outer diameter
29.2 mm
Approximate weight
1178 kg/km

Electrical characteristics

Electrical characteristics

Rated Voltage Uo/U (Um)
170/300V

Mechanical characteristics

Mechanical characteristics

Mechanical resistance to impacts
Good

Usage characteristics

Usage characteristics

Fire resistant
IEC 60331
Fire retardant
EN IEC 60332-3-22 (cat A)
Oil resistance
Yes
Electro magnetic interference resistance
Yes
Operating temperature, range
-20 ... 60 °C
Max. conductor temperature in service
90 °C
Standard
EN

Resources

Resources

Selling & delivery 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

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