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SWA Earthing

90°C XPLE steel wire armoured cables

This chart shows which (90°C XPLE) SWA cables comply with Table 54G when using only the armour as the CPC:

Green = compliant, Red = Non-Compliant

Notes

  • A cable which does not originally comply can still be brought into compliance with 54G providing an adequately sized additional earth cable is run in or a core is doubled up with the armour.
  • If the cable does not comply with table 54G it may still be used if it complies with the adiabatic equation.


70°C PVC Thermoplastic steel wire armoured cables

This chart shows which (70ºC thermoplastic) SWA cables comply with Table 54G when using only the armour as the CPC:

Green = compliant, Red = Non-Compliant

Notes

  • A cable which does not originally comply can still be brought into compliance with 54G providing an adequately sized additional earth cable is run in or a core is doubled up with the armour.
  • If the cable does not comply with table 54G it may still be used if it complies with the adiabatic equation.

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electrics/earthing_supply_types_and_bonding/swa_earthing.txt · Last modified: 2007/09/12 08:18 (external edit)
 
 
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