HG/T 20637.8-1998
Guid for preparation of engineering documents of instrumentation (English Version)
- Standard No.
- HG/T 20637.8-1998
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Chemical Industry
- Status
- 2018-04
- Replace By
- HG/T 20637.8-2017
- Latest
- HG/T 20637.8-2017
- Scope
- 1.0.1 These regulations are regulations for the numbering of instrument auxiliary equipment and cables and pipes and cables when the automatic control major prepares engineering design documents. 1.0.2 These regulations apply to instrument auxiliary equipment such as instrument panels (cabinets, boxes), operating consoles, auxiliary cabinets, terminal cabinets, junction boxes (boxes), protection (temperature) boxes, connecting boxes and air distributors, as well as cables and pipes. Cables are numbered. Does not include the numbers of DCS operating stations, cabinets, etc. When numbering instrument auxiliary equipment, cables, and pipes and cables, the text codes used should comply with the provisions of "Graphic symbols and text codes for automatic control professional engineering design" (HG/T 20637.2).
HG/T 20637.8-1998 history
- 2018 HG/T 20637.8-2017 Specifications for the compilation of engineering design documents for automatic control of chemical equipment
- 1970 HG/T 20637.8-1998 Guid for preparation of engineering documents of instrumentation
