1.0.1 This provision is guide for numbering of instrumentation auxiliary equipment, cables and tubes in the preparation of automation engineering documents.
1.0.2 This provision is the numbering of auxiliary equipment, cables and tubes such as instrument panel (cabinet and box), operating floor, auxiliary cabinet, terminal cabinet, connection box (case), protection box (incubator), pipe connecting box and air distributor, excluding the numbering of DCS operation station and equipment cabinet. In the numbering of auxiliary equipment, cables and tubes, the identifiers adopted shall comply with the requirements of "Symbols and identifiers for engineering design of instrumentation" (HG/T 20637.2).
1.0.3 Relevant standards are as follows:
HG/T 20637.2 Symbols and identifiers for engineering design of instrumentation
HG/T 20638 Specification for Details of Engineering Design of Instrumentation
During the implementation of this provision, the provisions in the current relevant standards of the state shall be complied with.
