Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
Specifies requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas other than air at atmospheric pressure, for alternating current of rated voltages of 72.5 kV and above, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. For the purpose of this standard the term 'switchgear…
High-voltage alternating current switch-fuse combinations
This standard applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches including switch-disconnectors and current-limiting fuses and thus able to interrupt: -any load current up to the rated breaking current of the switch; -any over-current up to the rated short-circuit breaking current of the combination by which automatic…
Specifications for particular types of winding wires. Part 29: Polyester or polyesterimide overcoate...
IEC 60317-29:1990 specifies the requirements of enamelled rectangular copper winding wire of class 200 with a dual coating. The underlying coating is based on polyester or polyesterimide resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The superimposed coating is based on polyamide-imide resin. Class 200 is a…
Specifications for particular types of winding wires. Part 26: Polyamide-imide enamelled round coppe...
IEC 60317-26:1990 specifies the requirements of enamelled round copper winding wire of class 200 with a sole coating based on polamide-imide resin. Class 200 is a thermal class that requires a minimum temperature index of 200 and a heat shock temperature of at least 220 °C. The temperature in degrees Celsius corresponding to the temperature index is not necessarily that at which it is recommended…
Specifications for particular types of winding wires - Part 31: Glass-fibre wound resin or varnish i...
IEC 60317-31:1990 specifies the requirements of glass-fibre wound, polyester or polyesterimide varnish-treated, bare or grade 2 enamelled rectangular copper winding wire, temperature index 180. NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the requirements for temperature index and…
Specifications for particular types of winding wires - Part 32: Glass-fibre wound resin or varnish i...
IEC 60317-32:1990 specifies the requirements of polyester or polyesterimide varnish-treated glass-fibre wound, polyester or polyesterimide varnish-treated, bare or grade 2 enamelled rectangular copper winding wire, temperature index 155. NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the…
Specifications for particular types of winding wires - Part 33: Glass-fibre wound resin or varnished...
IEC 60317-33:1990 specifies the requirements of glass-fibre wound, silicone varnish-treated, bare or grade 2 enamelled rectangular copper winding wire, temperature index 200. NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the requirements for temperature index and heat shock temperature…
International Electrotechnical Vocabulary (IEV) - Part 221: Magnetic materials and components
Replaces IEC 60050(901) (1973), 60050(901A) (1975) and 60050(901B) (1978). It has the status of a horizontal standard in accordance with IEC Guide 108.
