IEC 60417H : 1987被替代
GRAPHICAL SYMBOLS TO BE USED ON EQUIPMENT - INDEX, SURVEY AND COMPILATION OF THE SINGLE SHEETS - EIGHTH SUPPLEMENT
出版：International Electrotechnical Committee
专家解读视频
Contains 10 symbols related to telecommunications and alarm systems, and the symbol for non-residential use.
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
