BS 5308 Armoured Instrumentation · 20 pair 0.5 mm²
Ordering reference BS 5308 Armoured Instrumentation · 20 pair 0.5 mm²
BS 5308
BS 5308 Armoured Instrumentation
Application
Refinery instrumentation · Petrochemical process control · Tank farm signals · Industrial automation
Construction
- 1Conductor (per core)Plain or tinned copper conductor · 16 × Ø0.2 mm · IEC 60228 cl.5
- 2Pair insulationXLPE, EPR or fire resistant insulation
- 3FillerBedding / filler
- 4Overall screen (OS)Al/polyester foil + drain
- 5BeddingPVC bedding
- 6ArmourGalvanised steel wire armour (SWA)
- 7SheathPVC or LSZH outer sheath
Technical parameters
Service packageProcess instrumentation and control signal package
StandardBS 5308
Cable designMultipair instrumentation cable
Voltage / signal class300/500 V
Pair / core design20 pair
Conductor / fibre0.5 mm²
Screen / protectionOverall aluminium/polyester screen with drain wire and steel wire armour
Fire and safety ratingFlame retardant or LSZH option
Oil, mud and environmentRefinery, petrochemical plant and process unit routes
SheathPVC or LSZH outer sheath
Electrical / optical reference36.7 Ω/km max
OD guide23.7 mm
Conductor materialPlain or tinned copper conductor
Operating temperature−15 °C to +90 °C (fire-rated)
Cable weight628 kg/km
Bend radius12 x OD during installation
Outer sheathPVC or LSZH outer sheath
Max DC resistance at 20 °C36.00 Ω/km
Mutual capacitance (nom.)≈ 120 pF/m core/core · 200 pF/m core/screen (nominal)
Routine test voltage2.0 kV a.c. 5 min
Ratings & materials
StandardBS 5308
Voltage class300/500 V
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