Understanding Cable Referencing

Cable type referencing is relatively straight forward;

  • Bare cable = CC
  • LSF covered = CCM and OR (Orange) or RD (Red) or WH (White) or BK (Black) 
  • 2= Number of conductors
  • L= Light Duty 500v
  • H= Heavy Duty 750v
  • 1.5= Cross-sectional area of conductors

So a 2 core, 1.5sqmm, 500v, LSF Orange cable would be CCM2L1.5- OR

Cable Structure


Copper –Melting point 1083℃ (copper sheath cable)
Nickel clad copper –Ni melting point 1427℃ (Alloy 825 sheath)

Magnesium oxide insulating layer
High temperature ceramic +2800 ℃
Excellent electrical insulation qualities

Sheath options
Copper -1083℃
Alloy 825 –tested to 1095℃for 30mins (Alloy 825 melting point 1399 ℃)


The rest of the MICC fire survival wiring product range;

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