This standard is applicable to three-phase alternating-current switches, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages 52 kV and above; and for rated frequencies up to and including 60 Hz.
This standard is also applicable to the operating devices of these switches and to their auxiliary equipment.
Notes 1. - Switches for gas insulated switchgear are covered by this standard.
2. - Switches having a disconnecting function and called switch-disconnectors are also covered by IEC
Publication 129.
3. - Earthing switches are not covered by this standard. Earthing switches forming an integral part of a switch
are covered by IEC Publication 129.
SIS SS-IEC 265-2:1991 history
1991SIS SS-IEC 265-2:1991 High-voltage switches — Part 2: High-voltage switches for rated voltages of 52 kV and above