EN 50064:1989

EN 50064:1989 is a standard published by CLC. Its full title is "Wrought aluminium and aluminium alloy enclosures for gas-filled high-voltage switchgear and controlgear". This standard covers: This standard applies to fusion welded wrought aluminium and aluminium alloy enclosures pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor or outdoor installations of high-voltage switchgear and controlgear with rated voltages of 72,5 kV and above, where the gas is used principally for its dielectric and/or arc-quenching properties. The enclosures comprise parts of electrical equipment not necessarily limited to the following examples: circuit-breakers, switch-disconnectors, disconnectors, earthing switches, current transformers, voltage transformers, surge arrestors, busbars and connections. The scope covers also pressurized components such as the centre-chamber of live tank switchgear and controlgear, gas-insulated current transformers, etc.

This standard applies to fusion welded wrought aluminium and aluminium alloy enclosures pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor or outdoor installations of high-voltage switchgear and controlgear with rated voltages of 72,5 kV and above, where the gas is used principally for its dielectric and/or arc-quenching properties. The enclosures comprise parts of electrical equipment not necessarily limited to the following examples: circuit-breakers, switch-disconnectors, disconnectors, earthing switches, current transformers, voltage transformers, surge arrestors, busbars and connections. The scope covers also pressurized components such as the centre-chamber of live tank switchgear and controlgear, gas-insulated current transformers, etc.

EN 50064:1989 is classified under the following ICS (International Classification for Standards) categories: 29.130.10 - High voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 50064:1989 has the following relationships with other standards: It is inter standard links to EN 50064:2018, EN 50064:1989/A1:1993. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

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