IS 694 (Electrical Cables and Wires)

IS 694, is an Indian Standard applicable to PVC insulated cables. It was adopted by the Bureau of Indian Standards, in a wake of the finalization of the draft by the Power Cables Sectional Committee, which had been approved by the Electrotechnical Division Council.

Originally, this standard was published in the year 1955, however, afterward, it has been revised several times, first it was revised in 1964 when it was split up into two parts, Part 1 dealing with copper conductors and Part 2 dealing with aluminum conductors. The second revision took place in 1977 when the two parts were merged, including the requirements of weatherproof cables previously covered in IS 3035 (Part 1): 1965 ‘Thermoplastic insulated weatherproof cables: Part 1 PVC insulated and PVC sheathed.’ The two voltage grades specified as 250/440 V and 650/1 100 V were also merged. The third revision of this standard was brought out to take into account the experience gained since then to align with the international practices, to the extent considered appropriate.