Solid stranded annealed plain high conductivity electrolytic grade copper, aluminium conductor confirming to IS: 8130 1984. Individual core insulated with extruded PVC compound type 'A' confirming to IS:5831 1984.
All such cores are laid up in a common covering of PVC called inner sheath armoured with galvanised mild steel wire, strip confirming to IS: 3975, 1979 and finally jacketed with extruded PVC type ST-1 confirming to IS: 5831, 1984.
For Copper, Control Cables, Type YY, YWY, YFY Conductor Solid, Stranded
Colour Code : As per ISI
Working Voltage : 650/1100 Volts
Test Voltage : 3000 Volts
Insulation Resistance : 36.7 M Ohm/Km