Defence Standard Cables
Type A - Unscreened
Tinned copper conductors,
PVC insulation, PVC sheath
Cores: 2, 3, 4, 6, 8, 12, 20 & 25
Type C - Overall Braid Screened
Tinned copper conductors,
PVC insulation, PVC sheath
Tinned copper wire braid screen
Cores: 4, 6, 8, 12, 20, 36 & 50
Type S - Overall Foil Screened
Tinned copper conductors,
PVC insulation, PVC sheath
Aluminium Foil Screen
Cores: 6, 8, 12, 20 & 25
Type D - Individually Screened Cores
Wire braid screen round each
individual core
Cores: 4, 6, 8, 12, 25 & 36
External and Direct Burial
7-2-8S PP 8 core overall screen
7-2-12S PP 12 core overall screen