作废 HG/T 20637.2-1998
自控专业工程设计用图形符号和文字代号 自控专业工程设计用图形符号和文字代号 Symbols and identifiers for engineering design of instrumentation
发布日期:1998-06-22
实施日期:1999-01-01
分类信息
标准简介

1.0.1为了满足自控专业工程设计的需要,使工程设计文件标准化、规范化,特编制本规定。 1.0.2本规定适用于化工装置自控工程设计的仪表回路图、仪表位置图、仪表电缆桥架布置图、仪表电缆(管缆)及桥架布置图、现场仪表配线图、逻辑图、半模拟流程图和DCS过程显示、仪表常用电器设备等图形符号的绘制

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最后更新时间 2025-08-30