supply of cable, 4core x 50 sqmm pvc insulated ltug cable with aluminium conductor, heavy duty electric cable, working voltage upto 1100v, as is 1554, type of pvc compound for insulation - type a, identification mark on cable as per cl. 18 is 1554 , availability of test report, date and the lab. , ( supply ) -pvc insulated ( heavy duty ) electric cables, aluminium conductor - for working voltages up to and including 1100 volts with area 4 core 16 sq mm, bis marked yes for type-a insulation, conformity of the specification as per is:1554 ( part 1 ) :1988 latest, identification on the cable as per cl. 17 of is:1554 ( part 1 ) latest packing and marking conformity of the specification as per is:1554 ( part 1 ) :1988 latest.