Wires & cables

The load and the run length come first. Give the core size in square millimetres, number of cores, conductor material and voltage grade. House wires are commonly checked against IS 694 and heavy-duty PVC cables against IS 1554 (Part 1), though the current edition should be confirmed. Armoured cables suit buried or exposed runs, flexible cables portable equipment, and earthing cables follow IS 3043 practice. Sizing and installation belong with a qualified electrician.