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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, in moist areas, where chemical and mechanical protections are needed. The lead cover brings an enhanced resistance to aromatics hydrocarbons. The individual screening of each pair limits the consequence of crosstalk.
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:
Cross-linked polyethylene (XLPE)
Individual screen:
Binder tape
Tinned copper drain wire
Aluminium backed polyester tape
Binder tape
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
Lead cover
Bedding (intermediate 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 XLPE/IND+OA.SCR/PVC/LC/PVC/SWA/PVC 170/300 V Nber of pairs & cross section Type of thermocouple IEC 60332-3-22(A) MM YYYY Manufacturing number + meter marking.
Standards
EN 50288-7 (Design guide-lines)
HD 446.3 S1
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