1.0.1 To raise the level of construction and management of automation instrumentation (hereinafter referred to as instrumentation) engineering and to guarantee the engineering quality, this Code is worked out.
1.0.2 This Code applies to the construction and acceptance of industrial and civil instrumentation engineering.
This Code does not apply to the installation of instrumentation in places of manufacturing, storage or using explosive substances as well as the instrumentation of transportation tools, in mining or for metrological use.
1.0.3 The construction of instrumentation engineering shall meet what specified by design documents and in this Code as well as meeting requirements in the product installation instructions. Any modification to the design shall be confirmed by original designer.
1.0.4 The instrumentation and taps directly installed in equipment or piping shall be constructed in accordance what specified by design documents for the division of disciplines.
1.0.5 The equipment and materials used for the instrumentation engineering shall meet relevant mandatory national standards in force.
1.0.6 The welding in instrumentation engineering shall meet relevant stipulations in national standard in force the Code for Construction and Acceptance of Welding Engineering of Site Equipment and Industrial Piping GB 50236 – 98.
1.0.7 The construction of instrumentation engineering shall, apart from compliance with this Code, also meet what specified in relevant mandatory national standards in force.
1. General 1
2. Terms 1
3. Construction Preparation 4
3.1 Technical Preparation for Construction 4
3.2 Inspection and Storage of Instrumentation Apparatus and Materials 4
4. Installation of Taps 5
4.1 General Rules 5
4.2 Temperature Taps 5
4.3 Pressure Taps 6
4.4 Flow Taps 6
4.5 Material level Taps 7
4.6 Analysis Taps 8
5. Installation of Instrumentation Apparatus 8
5.1 General Rules 8
5.2 Instrument panels, Cabinets and Boxes 9
5.3 Temperature Detecting and Measuring Instrumentation 11
5.4 Pressure Detecting and Measuring Instrumentation 11
5.5 Flow Detecting and Measuring Instrumentation 11
5.6 Material level Detecting and Measuring Instrumentation 13
5.7 Mechanical Performance Detecting and Measuring Instrumentation 13
5.8 Instruments for Composition Analysis and Physical Performance Detecting and Measuring 14
5.9 Other Detecting and Measuring Instrumentation 15
5.10 Actuators 15
5.11 Control Instrumentation and Comprehensive Control System 15
5.12 Power Supply Equipment for Instrumentation 16
6. Installation of Instrument circuit 17
6.1 General Rules 17
6.2 Fabrication and Installation of Supports 18
6.3 Installation of Cable Trays 19
6.4 Installation of Protective Tubes 20
6.5 Installation of Cables and Wires 22
6.6 Wiring of Instrument circuits 23
7. Installation of Instrumentation Piping 23
7.1 General Rules 23
7.2 Piping of Measuring 24
7.3 Pneumatic Signal Piping 25
7.4 Gas Source Piping 25
7.5 Hydraulic Piping 26
7.6 Instrumentation Piping in Panels, Cabinets and Boxes 27
7.7 Piping Test 27
8. Degreasing 28
8.1 General Rules 28
8.2 Method of Degreasing 28
8.3 Test of Degreasing 29
9. Electrical Explosion-proof and Grounding 29
9.1 Construction of Instrumentation Units in Explosive and Fire Hazardous Atmosphere 29
9.2 Grounding 31
10.1 Isolation and Purging 32
10.2 Anti Corrosion and Heat Isolation 33
10.3 Heat Tracing 34
11. Instrumentation Test 35
11.1 General Rules 35
11.2 Calibration and Test of Single Instrument 35
11.3 Test of Instrumentation Power Supply Equipment 37
11.4 Test of Comprehensive Control System 37
11.5 Loop Test and System Test 38
12. Engineering Acceptance 40
12.1 Conditions for Handing Over and Acceptance 40
12.2 Handing Over and Acceptance 40
Appendix A Minimum Length of Straight Pipe Sector Required by Throttle Units 41
Explanation for articles 44
