1.Conductor
Plain annealed copper or aluminum
2.Insulation
General purpose PVC compound
3.Colour of cores
Single core - red or black
2 cores - red and black
3 cores - red, yellow and blue
4 cores - red, yellow, blue and black
4. Formation
1) Single core
2) 2,3, or 4 cores - stranded together and the interstices may be filled with the sheathing compound or textile. A nonhygroscopic binder tape may be applied over the laid-up cores.
5.Bedding
Black general purpose PVC compound
6.Armour
Single core - Aluminum wire
2,3, or 4 cores - Galvanized steel wire
7.Sheath
Black general purpose PVC compound
