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Applications
These compensation and extension cables are used with thermocouples for temperature measurements. They are well adapted to underground use in industrial applications where hydrocarbons may be present and where chemical and mechanical protections are needed (refinery areas, chemical plant…).
Design
Conductor:
Metal in accordance with the thermocouple, either solid cross section 0.5 mm² (1 x 0.8 mm), 1.34 mm² (1 x 1.30 mm) or flexible cross-section 1 mm² (14 x 0.30 mm)
Insulation:
Polyvinyl chloride (PVC)
Overall screen:
Binder tape
Tinned copper drain wire
Aluminium backed polyester tape
Bedding (inner sheath):
Polyvinyl chloride (PVC)
Colour : black or depends on thermocouple type
Armour
Galvanized steel wires (SWA)
Outer sheath:
Polyvinyl chloride (PVC)
Colour: depends on thermocouple type
Core identification
See "identification sheet"
Marking
NEXANS 279 PVC/OA.SCR/PVC/SWA/PVC 300/500 V Nber of pairs & cross section Type of thermocouple IEC 60332-3-22(A) MM YYYY Manufacturing number + meter marking
Standards
PAS 5308 Part 2/Type 2 (Design guide-lines)
BS EN 50290-2-21-2002
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