SIS SS-EN 50 069-1991 铸造焊接复合外壳及锻造铝合金的充气高压开关和控制设备

标准号：SIS SS-EN 50 069-1991
中文标准名称：铸造焊接复合外壳及锻造铝合金的充气高压开关和控制设备
英文标准名称：Welded composite enclosures ofcast and wrought aluminium alloys for gas-filled high-voltage switchgear and controlgear
发布日期：1991/6/5 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：2.1 Ty pe of equ ipmentThis standard applies to welded composlte enclosures of cast and wrought aluminium and aluminium alloy enclosures pressurized with dry air, inert gases, for example sulphur hexafluoride or nltro-gen or a mixture of such gases, used in indoor or outdoor installations of hlgh-voltage switchgear and controlgear with rated voltages of 72,5 kV and above, where the gas is used principally for its dielectrlc and/or ar c-quenching properties.The enclosures comprlse parts of electrical equipment not neces-sarily limited to the following examples:Ci rcult-breakers Switch-disconnectors D1 s connectors Earthing switches Current trtnsformers voltage transformers Surge arrestors Busbars and connectionsThe scope covers also pressurized components such as the centre-chamber of live tank switchgear and controlgear, gas-insu lated current transformers, etc.