Unscreened type 'A' has fine tinned
copper wire strands, colour coded PVC insulation, cores twisted together,
PVC outer sheath.
Screened type 'C' has an overall polyester tape with
tinned copper wire braid screen.
Screened type 'D' has individual screens of tinned
copper wire braids around each core.
Screened type 'S' has an overall aluminium foil screen
and tinned copper drain wire.
Screened type 'R' is the same in construction as type
C with a 2.90mm2 conductor size.
Duct grade versions have a heavy duty black LDPE
sheath .
Normally packed on 100m, 500m or 1000m spools, cables can also be
cut to length when required. For colour codes up to 36 cores see the
colour chart.