LST 1537.4-1999 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V. Part 4: Sheathed cables for fixed wiring (HD 21.4 S2-reprint 1990)
1999LST 1537.4-1999 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V. Part 4: Sheathed cables for fixed wiring (HD 21.4 S2-reprint 1990)