GB 50093-2013 English PDF

GB 50093-2013: Code for construction and quality acceptance of automation instrumentation engineering
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GB 50093-2013
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50093-2013
Code for Construction and Quality Acceptance of
Automation Instrumentation Engineering
ISSUED ON: JANUARY 28, 2013
IMPLEMENTED ON: SEPTEMBER 1, 2013
Issued by: Ministry of Housing and Urban-Rural Development;
General Administration of Quality Supervision, Inspection and
Quarantine of P. R. China.
Table of Contents
1 General Provisions ... 9
2 Terms ... 10
3 Basic Requirements... 12
3.1 Technical Preparation of Construction ... 12
3.2 Quality Control ... 12
3.3 Division for Acceptance of Construction Quality ... 12
3.4 Inspection Quantity ... 13
3.5 Acceptance Method and Acceptable Quality Level ... 14
4 Inspection and Preservation of Instruments and Materials ... 16
4.1 Inspection and Preservation of Instruments and Materials... 16
4.2 Quality Acceptance ... 16
5 Tap Installation ... 18
5.1 General Requirements ... 18
5.2 Temperature Tap ... 18
5.3 Pressure Tap ... 18
5.4 Flow Tap... 19
5.5 Level Tap ... 20
5.6 Analysis Tap ... 21
5.7 Quality Acceptance ... 21
6 Instrument Installation ... 26
6.1 General Requirements ... 26
6.2 Instrument Panels, Cabinets and Cases ... 27
6.3 Detecting and Measuring Instrument for Temperature ... 28
6.4 Detecting and Measuring Instrument for Pressure ... 29
6.5 Detecting and Measuring Instrument for Flow ... 29
6.6 Detecting and Measuring Instrument for Level ... 31
6.7 Detecting and Measuring Instrument for Mechanical Quantity ... 32
6.8 Detecting and Measuring Instrument for Composition Analysis and Properties of Matter
... 32
6.9 Other Detecting and Measuring Instruments ... 33
6.10 Actuator ... 33
6.11 Control Instrument and Comprehensive Control System ... 34
6.12 Power Supply Device of Instrument ... 34
6.13 Quality Acceptance ... 35
7 Installation of Instrumentation Line ... 42
7.1 General Requirements ... 42
7.2 Fabrication and Installation of Supports ... 43
7.3 Installation of Cable Tray ... 43
7.4 Installation of Cable Conduit ... 44
7.5 Laying of Cable, Electric Wire and Optical Cable ... 45
7.6 Distributing of Instrumentation Line... 47
7.7 Quality Acceptance ... 48
8 Installation of Instrumentation Piping ... 52
8.1 General Requirements ... 52
8.2 Measuring Piping ... 53
8.3 Pneumatic Signal Piping ... 53
8.4 Air Piping ... 54
8.5 Hydraulic Piping ... 55
8.6 Instrumentation Piping in Panels, Cabinets and Cases ... 55
8.7 Piping Test ... 56
8.8 Quality Acceptance ... 57
9 Degreasing ... 63
9.1 General Requirements ... 63
9.2 Degreasing Method ... 63
9.3 Inspection of Degreased Parts ... 64
9.4 Quality Acceptance ... 64
10 Electrical Explosion Protection and Grounding ... 66
10.1 Instrumentation Construction for Hazardous Atmosphere of Explosion and Fire
Hazard ... 66
10.2 Grounding ... 68
10.3 Quality Acceptance ... 69
11 Protection ... 72
11.1 Isolation and Blow Washing ... 72
11.2 Anticorrosion and Insulation ... 72
11.3 Heat Tracing ... 73
11.4 Quality Acceptance ... 74
12 Instrumentation Test ... 76
12.1 General Requirements ... 76
12.2 Calibration and Test of Single Instrument ... 76
12.3 Test for Power Supply Device of Instrument ... 78
12.4 Test of Comprehensive Control System ... 78
12.5 Loop Test and System Test ... 80
12.6 Quality Acceptance ... 81
13 Handover and Acceptance of Engineering ... 87
13.1 Conditions of Handover and Acceptance ... 87
13.2 Handover Acceptance... 87
Appendix A ... 88
Quality Acceptance Record of Subitem Project of Automation Instrumentation ... 88
Appendix B ... 89
Minimum Straight Pipe Section Length for Throttling Set ... 89
Explanation of Wording in This Code ... 92
List of Quoted Standards ... 93
Code for Construction and Quality Acceptance of
Automation Instrumentation Engineering
1 General Provisions
1.0.1 This Code is formulated with a view to improving the construction technique and
management level of automation instrumentation engineering, unifying the construction
quality acceptance method of automation instrumentation engineering and guaranteeing the
engineering quality.
1.0.2 This Code is applicable to the construction and quality acceptance of automation
instrumentation engineering.
1.0.3 This Code is not applicable to the automation instrumentation installation engineering
at places where explosive substances are manufactured, stored or used as well as the
transportation tools or in mines.
1.0.4 Construction of automation instrumentation engineering shall be in accordance with
those specified in the design document and this Code.
1.0.5 Where it is necessary to revise the design document or use other material as substitute,
it shall be agreed by the original design organization and also be issued with relevant
documents.
1.0.6 The instrumentation and instrumentation tap directly installed on equipment or piping
shall be constructed in accordance with the requirements on specialization and division of
work given in the design document.
1.0.7 Equipment and materials adopted in automation instrumentation engineering shall
comply with relevant current standards of the Nation and shall be with the product quality
evidentiary documents.
1.0.8 The welding construction in automation instrumentation engineering shall be in
accordance with those specified in the current national standards "Code for Construction of
Field Equipment, Industrial Pipe Welding Engineering" (GB 50236), "Code for Acceptance of
Field Equipment, Industrial Pipe Welding Construction Quality" (GB 50683) and "Code for
Acceptance of Construction Quality of Steel Structures" (GB 50205).
1.0.9 Construction and quality acceptance of automation instrumentation engineering not
only shall comply with this Code, but also shall comply with those in the current relevant
standards of the nation.
2 Terms
2.0.1 Automation instrumentation
A general term of instrumentation units and instrumentation systems which are used to
measure and control the measured and manipulated variables.
2.0.2 Measurement
A group of operations with purpose to determine the values.
2.0.3 Control
Purposed activities on system or in system to achieve the specified objective.
2.0.4 Field instrument
The instrument installed outside the field control room and generally nearby the measured
object and controlled object.
2.0.5 Detecting and measuring instrument
The instrument used to determine the quantity value or the characteristics and state of the
measured variable.
2.0.6 Transducer
The unit receiving the information of input variable and converting them to output variable of
the same type or other type in accordance with certain law.
2.0.7 Converter
The unit receiving signals of one type and converts them to signals of other type for output in
accordance with certain law.
2.0.8 Transmitter
The transducer of which the output is normalized signal.
2.0.9 Display instrument
The instrument displaying the values of quantity measured.
2.0.10 Control instrument
The instrument used to control the manipulated variables.
2.0.11 Actuator
The unit in the control system, which directly changes the manipulated variable via the action
of its mechanism.
2.0.12 Sensor
The primary element in the measuring chain, which converts the input variables to the signals
suitable for measurement.
2.0.13 Tap
The elements such as dedicated pipe fittings, outlet and junction valve set on the measured
object for purpose of installing and connecting the sensor.
2.0.14 Measuring point
The specific positions where the measured variable is detected and measured, i.e., the field
installation positions of sensor and tap.
2.0.15 Control system
The system reaching the established status via precision guidance or via manipulation of
several variables. The instrument control system consists of such hardware as instrumentation
apparatus, instrument piping, instrument power and auxiliary facilities as well as the relevant
3 Basic Requirements
3.1 Technical Preparation of Construction
3.1.1 The construction organization design and construction scheme of automation
instrumentation engineering shall have already been approved. As for the complicated and
critical installation and test work, construction technical scheme shall be prepared.
3.1.2 Prior to the construction of automation instrumentation engineering, the construction
organization shall participate in the joint review on construction drawing design document.
3.1.3 The technical safety measures during the construction of automation instrumentation
engineering shall be in accordance with those specified in this Code and in the current
relevant standards of the Nation.
3.1.4 Prior to the construction of automation instrumentation engineering, technical
disclosure shall be carried out to the construction personnel.
3.1.5 The monitoring and measuring equipment shall be calibrated and (or) verified at a
specified time interval or before use.
3.2 Quality Control
3.2.1 At the construction site, sound quality management system, quality management
system and corresponding construction technical standards shall be available.
3.2.2 As for automation instrumentation engineering, the construction process shall be
carried out with quality control, and inspection shall be carried out according to procedures
and quality control points.
3.2.3 Handing-over inspection on construction procedures shall be carried out between the
automation instrumentation profession and relevant professions.
3.2.4 As for the automation instrumentation engineering, the engineering division,
determination of quality control points, quality inspection and acceptance record form all
shall be defined in the construction scheme or quality plan.
3.2.5 Quality acceptance of automation instrumentation engineering shall be carried out on
basis of qualified self-inspection of construction organization.
3.2.6 The quality of inspection items shall be inspected and accepted according to dominant
items and general items.
3.3 Division for Acceptance of Construction Quality
3.3.1 Construction quality acceptance of instrumentation engineering shall be divided
according to unit project, subsection project and subitem project.
3.3.2 Unit project shall be composed of subsection projects. Where a unit project only
consists of instrumentation subsection project, this subsection project shall be one unit
project.
3.3.3 Subsection project shall be composed of subitem projects. The instrumentation
projects in one unit project shall be one subsection project.
3.3.4 Division of subitem project shall meet the following requirements:
1 Where the instrumentation engineering is the subsection project of unit projects such
as plant area, workshop, station area and unit, it shall be divided into installation of
instrument panels, cabinets and cases, instrument installation, instrumentation test, installation
of instrumentation line, installation of instrumentation piping, degreasing, grounding,
protection and the like according to the instrument category and installation work contents.
2 Instrumentation subsection project of the main control room shall divided into
installation of panels and cabinets, installation of power supply device, installation of
instrumentation line, grounding, and system hardware and software experiment, etc.
3 Instrument loop test and system test shall be included in the instrumentation
subsection project of the main control room.
4 In large- and medium-scale civil building engineering, subitem projects shall be
divided according to storeys, bays or intervals, and the line installation and instrumentation
test may be separately deemed as subitem projects.
5 The small-scale engineering may be divided into such subitem projects as installation
of field instrument and line piping, control room instrument installation and instrumentation
test, etc..
6 Where the large- and medium-sized unit or equipment is supplied in full sets by the
manufacturer and also is deemed as one subsection project, the installation and test of its
mating instrument and control system may be deemed as one subitem project.
3.4 Inspection Quantity
3.4.1 As for the inspection quantity and random inspection proportion specified in this
Section, the inspection quantity may be increased under special circumstances.
3.4.2 The installation of taps used for high-temperature, low-temperature, high-pressure,
combustible, explosive, toxic and harmful materials as well as the installation of taps of the
metering, safety monitoring alarm and interlock systems shall be inspected by 100%. Other
taps shall be randomly inspected by 30% and no less than one piece respectively according to
purpose classification such as temperature, pressure, flow, level and analysis.
3.4.3 The installation of instruments used for high-temperature, low-temperature,
high-pressure, combustible, explosive, toxic and harmful materials as well as the installation
of instruments of the metering, safety monitoring alarm and interlock systems shall be
inspected by 100%.Other instruments shall be randomly inspected by 30% and no less than
one set (piece) respectively according to their types.
3.4.4 The installation of the separately set instrument panels, cabinets and cases shall be
randomly inspected by 20% and no less than one set. The installation of the instrument panels,
cabinets and cases that are set in rows shall be randomly inspected by 30% and no less than
one row.
3.4.5 Installation of the power supply devices of instruments shall be inspected by 100%.
3.4.6 The installation of instrumentation line outside the explosive and fire hazardous areas
shall be randomly inspected by 30% according to system.
3.4.7 The installation of instrumentation piping used for high-temperature, low-temperature,
high-pressure, combustible, explosive, toxic and harmful materials as well as the installation
4 ...