EN 50288-7 Silicone OS Unarmoured 20x2x2,5

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 where chemicals may be present. 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, 

Copper backed polyester tape

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/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 + copper polyester tape
Outer sheath
PVC
Protection
no

Dimensional characteristics

Dimensional characteristics

Number of pairs
20
Conductor cross-section
2.5 mm²
Conductor diameter
1.91 mm
Diameter over insulation
3.07 mm
Minimum outer diameter
29.9 mm
Maximum outer diameter
34.9 mm
Approximate weight
1480 kg/km

Electrical characteristics

Electrical characteristics

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

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:

10 x outer diameter
To be doubled during laying operations


Tinned copper conductors available on request

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