Applications
These compensation and extension cables are used with thermocouples for temperature measurements in moist areas and where aliphatic and aromatic hydrocarbons may be present. They are well adapted to underground use in industrial applications where chemical and mechanical protections are needed (refinery areas, chemical plant...). The individual screening of each pair limits the consequence of crosstalk. Hypron® offers an alternative to conventional lead sheathed cable and is an environmental friendly solution.
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/polyester tape
Binder tape
Binder tape:
Bedding:
Inner sheath:
Polyvinyl chloride (PVC)
Colour: black.
Overall screen/sealing barrier:
Tinned copper drain wire
Aluminium backed polyethylene tape
Bedding:
High density polyethylene (PE)
Colour: black
Special sheath (intermediate sheath):
Polyamide
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.SCR/AL/HDPE/NC/SWA/PVC 300/500V Nber of pairs & cross-section Type of thermocouple IEC 60332-3-22(A) MM YYYY Manufacturing number + metric marking
Standards
PAS 5308 Part 1/type 2 (Design guide-lines)
BS EN 50290-2-29
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