IEC 60417B : 1975被替代
GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT - INDEX, SURVEY AND COMPILATION OF THE SINGLE SHEETS - SECOND SUPPLEMENT
出版：International Electrotechnical Committee
专家解读视频
A.C./d.c. and d.c./a.c. convertors, dangerous voltage, Class II equipment, rectifier, audio, rejection filter, variable band stop filter, fast start and stop, and two symbols for ships' radar equipment.
BS 6217(1981) : 1981 - Identical
DIN 40101-1 : 1991 - Identical
DIN 40100-22 : 84 DRAFT 89 - Corresponds
BS 6217(1981) : 1981 - Identical
DIN 30603 : 1985 - Identical
DIN 32520-4 : 1986 - Similar to
UNE 20557-1 : 1985 - Identical
