I.S. HD 448S4 (Duplicate Record)被替代
Common Clauses For High-voltage Switchgear And Control Gear Standards
出版：National Standards Authority of Ireland
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基本信息
標準編號： I.S. HD 448S4 (Duplicate Record)
標準類別：Standard
出版單位：National Standards Authority of Ireland
標準頁數：0
標準簡介
Applies, unless otherwise specified in relevant IEC standards, to all a.c. high-voltage switchgear and controlgear designed for indoor or outdoor installation, for operation at service frequencies up to and including 60 Hz, on systems having voltages above 1,000 V.
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