Air-break switches, air-break disconnectors, air-break switch disconnectors and fuse-combination units for voltages not exceeding 1000 V AC or 1200 V DC, Part 1:general requirements
- Bureau of Indian Standards ; 1979.
Air-break switches
621.316.542.064.241:621.316.92
Air-break switches
621.316.542.064.241:621.316.92