Detail of SH/T 3521-2013

Introduction of SH/T 3521-2013

1 Scope This specification specifies technical requirements for the automated instrumentation engineering in petrochemical industry. This specification is applicable to the construction and acceptance of automated instrumentation engineering in petrochemical industry for new construction, expansion and renovation. 2 Normative references The following referenced documents are indispensable for the application of this specification. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 255 Petroleum products—Determination of distillation characteristics GB 4792 Basic health standards for radiological protection GB/T 4989 Extension and compensating cables for thermocouples GB 50093 Code for construction and quality acceptance of automation instrumentation engineering GB 50168 Standard for construction and acceptance of cable line electric equipment installation engineering GB 50303 Code of acceptance of construction quality of electrical installation in building GB 50484 Technical code for construction safety in petrochemical engineering GB 50517 Code for construction quality acceptance of metallic piping in petrochemical engineering SH/T 3020 Design specification for instrument air supply system in petrochemical industry SH/T 3126 Design specification for tracing and insulation of instrument and piping in petrochemical industry SH 3501 Construction and acceptance specification for toxic and combustible medium steel piping engineering in petrochemical industry SH/T 3503 Specification on handover technical documentation for petrochemical construction projects SH 3518 Specification for valves inspection and management in petrochemical industry SH/T 3543 Specification on technical documentation for construction process of petrochemical construction projects SH/T 3551 Specification for quality inspection and acceptance of instrumentation engineering in petrochemical industry 3 General provisions 3.1 The construction of instrumentation engineering shall be carried out in accordance with the requirements of the design documents and instrument product specifications, and any modification in the design shall be approved in writing by the original designer. 3.2 In the construction of instrumentation engineering, this specification shall apply if there is any matter not specified in the design documents. 3.3 The construction of instrumentation engineering shall be carried out in accordance with the provisions for discipline interface given in the design documents. If there are no such provisions available in the design documents, the interfaces of the piping and equipment discipline shall comply with Annex A of SH/T 355l-2013. 3.4 The safety technology and labor protection in instrumentation engineering construction shall comply with the provisions of GB 50484. 3.5 Welding operations in instrumentation engineering shall comply with GB 50517 and relevant standards of the petrochemical industry. 3.6 The degreasing operation in instrumentation engineering shall comply with GB 50093. 3.7 The prerequisites for commencement of instrumentation engineering work shall include: a) Piping and instrumentation diagram (P&ID), instrumentation engineering design documents and main instrument manuals are complete; b) The verification, joint review and design disclosure of instrumentation engineering design documents have been completed; c) The main construction scheme has been approved; d) The orders for instrumentation and accessories have been placed, the main instruments and design specification documentation have been successfully delivered, and the installation materials acquired are adequate for continuous construction; e) Necessary temporary construction facilities have been provided in place on the construction site; f) The installation of civil engineering, process equipment and steel structure has been basically completed, the interior decoration of the control room has been completed, and the delivery and installation conditions are ready; g) Key construction personnel have received technical disclosure, are kept on top of the detailed engineering design documents of the instruments, and has been completed necessary technical training; h) The complete construction machines and tools, equipment and instruments (meters) are in place; i) A sound quality management organization has been established. 3.8 The main construction procedure in instrumentation engineering is as shown in Figure 3.8.

Contents of SH/T 3521-2013

Foreword i 1 Scope 2 Normative references 3 General provisions 4 Preparation for construction 4.1 Preparation for construction technology 4.2 Preparation for construction site 4.3 Inspection and storage of instrumentation & materials 5 Calibration and adjustment of instruments 5.1 General 5.2 Temperature measuring instrument 5.3 Pressure measuring instrument 5.4 Flow measuring instrument 5.5 Level measuring instrument 5.6 Pneumatic instrument 5.7 Electric instrument 5.8 Actuator 5.9 Mechanical measuring/detecting/monitoring instrument 5.10 On-line analyzer 5.11 Programmable controller & intelligent control instrument 5.12 Fieldbus instruments 6 Installation of instrumentation 6.1 General 6.2 Installation of instrument panel, cabinet, box and console 6.3 Installation of local instrument panel and box 6.4 Installation of temperature instruments 6.5 Installation of pressure instruments 6.6 Installation of flow instruments 6.7 Installation of level instruments 6.8 Installation of on-line analyzer & gas detecting instrument 6.9 Installation of mechanical measuring & detecting instrument 6.10 Installation of actuator 7 Installation and debugging of comprehensive control system 7.1 General 7.2 Installation 7.3 Debugging of decentralized control system (DCS) 7.4 Debugging of programmable logic controller (PLC) and safety instrumented system (SIS) 7.5 Debugging of fieldbus control system (FCS) 7.6 Supervisory control and data acquisition (SCADA) system 8 Installation of instrument line 8.1 General 8.2 Fabrication and installation of brackets 8.3 Fabrication and installation of cable tray 8.4 Installation of protection tube 8.5 Laying of cable 8.6 Laying of optical cable 8.7 Laying of compensating conductor (cable) 8.8 Explosion-proof 8.9 Wiring of instrument panel/cabinet/box 9 Grounding 9.1 General 9.2 Laying of grounding cable 9.3 Grounding connection of instrument system in control room/cabinet 9.4 Grounding of shielded cable 9.5 Grounding of instrument system 10 Installation of measuring tube 10.1 General 10.2 Installation of measuring tube 10.3 Installation of measuring tube containing toxic, high temperature, high pressure and combustible media 10.4 Installation of analyzing & sampling tube 10.5 Installation of isolating & purging tube 10.6 Test of measuring tube 11 Installation of instrument air supply tube and signal tube 11.1 Air supply tube 11.2 Pneumatic signal tube 11.3 Pressure test and purging of pneumatic tube 12 Installation of instrument heat tracing system 12.1 Steam and hot water heat tracing 12.2 Electric heat tracing 13 Test of instrument system 13.1 General 13.2 Test of detecting and adjusting system 13.3 Test of alarm system 13.4 Test of interlock protection system and procedure control system 14 Acceptance of works 14.1 Turn-over and acceptance condition 14.2 Turn-over and acceptance Annex A (Informative) Abbreviation index Annex B (Informative) Common apparatus for calibration of instruments Annex C (Informative) Insertion depth for detecting element of temperature measuring instrument Annex D (Normative) Minimum straight tube length required for throttling device Annex E (Informative) Communication debugging meter of bus instrument Annex F (Normative) Type and specification of compensating cable (conductor) Annex G (Informative) Hot insulation of instrumentation engineering Explanation of wording in this specification