IEC 60449 Amd.1 Ed. 1.0被替代
Amendment 1 - Voltage bands for electrical installations of buildings
出版：International Electrotechnical Committee
專家解讀視頻
基本信息
標準編號： IEC 60449 Amd.1 Ed. 1.0
發布時間：1979/1/1 0:00:00
標準類別：Amendment
出版單位：International Electrotechnical Committee
標準頁數：3
標準簡介
Classification of d.c. installations according to their nominal voltage. As for a.c. a distinction has been made between two bands when the lower band relates mainly to installations whose voltages are restricted for safety reasons. Covers all voltages from zero up to and including 120 V ripple-free d.c.
本標準修訂后的版本
