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Standard
| DL/T 617-1997 Specification for Gas-insulated metal-enclosed switchgear (English Version) |
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Detail of DL/T 617-1997
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Introduction of DL/T 617-1997
本标准规定了额定电压为72.kV及以上、频率为50HZ的户内、户外型气体绝缘金属封闭开头设备的使用条件，额定值、设计与结构以及试验等方面的要求。
本标准适用于全部或部分采用气体作为绝缘介质的气体绝缘金属封闭开关设备。
Contents of DL/T 617-1997