BS5308 Standard Cable / PAS5308 Cable
Instrumentation cables manufactured in accordance with British Standard BS5308 (now Publicly Available Standard PAS5308)
British Standard BS5308 covers specifications for instrumentation cables in variants including Polyethylene (PE), Polyvinyl Chloride (PVC), Cross-Linked Polyethylene (XLPE), and Low Smoke Zero Halogen (LSZH) insulation materials, and armoured instrumentation cables.
BS5308 Standard Withdrawn
Whilst this British Standard was superseded by the Harmonised Standard BS EN 50288-7 in 2005, it is still widely referred to because the Harmonised Standard does not account for the higher voltage ratings and cable dimensions.
A publicly available version of the Standard was published as PAS5308 in 2009, although it remains commonly referenced as BS5308 by many.
BS5308 Cable / PAS5308 Cable Part Designations
BS5308 Part 1 Type 1 - Unarmoured - collectively screened (CAM) and individually & collectively screened (IAM/CAM or ICAT). PE insulated and PVC oversheathed.
BS5308 Part 1 Type 2 - Armoured - collectively screened and also individually & collectively screened. PE insulated, PE bedded, single wire armoured (SWA) and PVC oversheathed.
BS5308 Part 1 Type 3 - Armoured - collectively screened or individually & collectively screened. PE insulated, PVC bedded, lead alloy oversheath, single wire armoured and PVC oversheathed.
BS5308 Part 2 - PVC insulated instrumentation cables - British Standard BS5308 Part 2 specifies requirements for PVC insulated cables, in multicore and multi-pair construction, with or without screens. It provides the option to incorporate a single wire armour. Part 2 is further categorised as Types 1 & 2.
BS5308 Part 2 Type 1 - Unarmoured construction - PVC insulated and PVC oversheathed.
BS5308 Part 2 Type 2 - Armoured construction - PVC insulated, PVC bedded, single wire armoured and PVC oversheathed.
Comparing Instrumentation Cable BS5308, PAS5308 and BS EN 50288-7 Construction
BS5308-1 | BS5308-2 | PAS5308-1 | PAS5308-2 | BSEN 50288-7 | |
---|---|---|---|---|---|
Conductor | Plain annealed copper, solid or stranded (BS6360) | Plain annealed copper, stranded (BS6360) | Plain annealed copper, multi-stranded (BS EN 60228) | Plain annealed copper, multi-stranded (BS EN 60228) | Plain annealed or metal-coated, solid or stranded (IEC 60288) |
Conductor size | 0.5mm2 to 1.5mm2 | 0.5mm2 to 1.5mm2 | 0.5mm2 to 2.5mm2 | 0.5mm2 to 2.5mm2 | 0.5mm2 to 4.0mm2 |
Voltage range | 300/500V | 300/500V | 300/500V | 300/500V | 90V, 300V, 500V |
Insulation | PE Type 03 | Polyvinyl Chloride (PVC) Type TI1 | Thermoplastic PE or Cross-linked Polyethylene (XLPE) | PVC Type TI51 | PVC, PE, XLPE, Polypropylene or Halogen-free flame retardant compound |
Formation | Core pair twisted quad | Core pair twisted quad | Core pair twisted quad | Core pair twisted quad | Twisted core pair, triple or quad |
Individual and/or Screen | Aluminium foil laminate tape (PET) | Al/PET | Al/PET | Al/PET | Al/PET |
Drain Wire | Solid or stranded tinned annealed copper | Solid or stranded tinned annealed copper | Solid or stranded tinned annealed copper | Solid or stranded tinned annealed copper | Solid tinned copper |
Braid | Not defined | Not defined | Not defined | Not defined | Tinned copper wires |
Covering | Not defined | Not defined | Not defined | Not defined | Lead sheath to EN 50307 |
Inner Sheath | Extruded PE compound Type 2C or Extruded Polyvinyl Chloride (PVC) Type TM1 | Extruded PVC Type TM1 | Extruded PE compound Type 2 or Extruded PVC Type TM51 | Extruded PVC Type TM51 | PVC, PE or Low Smoke Zero Halogen (LSZH) compound |
Armour | Galvanised steel wire armour (GSWA) | GSWA | GSWA | GSWA | Steel wire armour (SWA) |
Moisture barrier | Not defined | Not defined | Not defined | Not defined | Water-swellable tape, water-swellable non-toxic powder, filling compound, laminated sheath of a longitudinally overlapped metallic foil, or a combination of all |
Outer sheath | Extruded Polyvinyl Chloride (PVC) Type TM1 | Extruded PVC Type TM1 (type 1 & 2) | Extruded PVC Type TM51 | Extruded PVC Type TM51 | PVC, PE or Low Smoke Zero Halogen (LSZH) compound |
BS5308 cable / PAS 5308 Cable Colour Coding
BS5308 Cable
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