自动手动转换开关板应为独立式,室内型、金属外壳装置,保护等级为IP42。
Auto transfer switch panels shall be free standing, indoor type, metal enclosed units with degree of protection IP42.
自动手动转换开关板应为独立式,室内型、金属外壳装置,保护等级为IP42。
Auto transfer switch panels shall be free standing, indoor type, metal enclosed units with degree of protection IP42.
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