Solid / stranded annealed copper conductor & tinned / bare
General purpose / HR PVC insulation
Cores laid up (filled if needed)
FRLS / General Purpose PVC inner sheath
Armouring round galvanized steel wires / strips
FRLS / General purpose PVC outer sheath
ADVANTAGE
LT Control cable XLPE Insulated - higher current rating and
emergency overload rating; Superior short circuit rating; Low
dielectric loss much better insulation resistance; Resistant to
chemical & corrosive gases etc.; Better resistance to surge
currents much longer life of the cables.
APPLICABLE STANDARDS
LT Power cable XLPE Insulated: IS 7098/Part 1/1988
CONDUCTOR
IEC 60228 specifies four different classes of conductors;
class-2. control cables normally have conductors of class 1
(solid conductors) or class 2 (stranded conductors).
Conductor forms: circular solid, circular stranded, sector
shaped solid, sector shaped stranded.t
INSULATION
The insulation materials for control cables are PVC / XLPE
colors Red, Yellow, Blue & Black.
INNER SHEATH
PVC Type ST2 as per IS 5831 Option FR Type.
ARMOURING
Single layer of Galvanizing steel round wire/flat strip. If required