1 General
1.0.1 This code is developed for the purpose of meeting the needs of petrochemical construction engineering, ensuring personal safety and health, protecting public property from loss and protecting the environment from harm.
1.0.2 This code is applicable to the safety technical management of construction engineering such as petroleum refining, petrochemical industry, chemical fiber and chemical fertilizer.
1.0.3 The construction of petrochemical engineering must adhere to the policy of "safety first and prevention oriented".
1.0.4 The construction safety technology of petrochemical engineering shall meet the requirements of, in addition to this code, the current relevant standards of the nation.
2 Terms
2.0.1
hot work
all kinds of metal welding, cutting operations and other operations that produce sparks and open flames in petrochemical engineering construction
2.0.2
specified hot work area
area where hot work may be carried out without a hot work permit within the limited scope of the construction site of petrochemical engineering
2.0.3
life yarn
rope specially used for hanging seat belts in work at heights
2.0.4
electricity on construction site
power lines and electrical facilities provided for the construction projects and removed upon the completion of the construction
2.0.5
distributing tank
distribution device arranged in the construction distribution room (including independent distribution room and box-type substation), including incoming and outgoing cabinets
2.0.6
total distribution box
floor-type power distribution device arranged in the power load center, with the incoming end connected to the outgoing cabinet of the power distribution room, and the outgoing end connected to the sub-distribution box or high-power electrical equipment
2.0.7
sub-distribution box
distribution device distributed at various construction points to allow the electrical equipment to obtain power nearby, with the incoming end connected to the total distribution box and outgoing end connected to switch boxes or electrical equipment
2.0.8
distribution box
general name of the total distribution box and sub-distribution box
2.0.9
switch box
final-stage distribution device with the incoming end connected to the sub-distribution box and the outgoing end connected to the electrical equipment
2.0.10
low voltage
voltage with AC-to-ground rated value of 1kV and below
2.0.11
high voltage
voltage with AC-to-ground rated value above 1kV
2.0.12
safety extra-low voltage (SELV)
voltage between conductors or between either conductor and ground with an AC RMS not exceeding 50V in a circuit isolated from a power source by a safety isolating transformer
2.0.13
safety isolating transformer
isolating transformer for providing power supply for safety extra-low voltage circuit,
2.0.14
TN-S system
neutral protection system with working null line and protective null line set separately
2.0.15
work at heights
any operation carried out at a height where it is possible to fall at or above the datum level of falling height 2m
2.0.16
winter construction
operation carried out in the environment where the outdoor daily average temperature is steadily lower than + 5°C for 5 consecutive days
2.0.17
confined spaces
closed, narrow and poorly ventilated compartments with restricted entrance and exit, or closed or open poorly ventilated spaces with a depth greater than 1.2m, which can only be accessed for operation by one person
2.0.18
painting operations
general name for the production activities carried out by the operating personnel in the whole painting process
2.0.19
heat treatment
process of heating, holding and cooling metal materials or workpieces in an appropriate way to obtain the expected metallographic structure and physical properties
2.0.20
shot blasting
process of spraying steel shot (cut into granules by steel wire) onto metal workpiece with high-speed rotating impeller to strengthen metal surface and remove rust from surface
2.0.21
shot peening
process of spraying a large number of cast iron shot or steel shot to the surface of metal workpiece with compressed air or centrifugal force to remove sintered sand layer on the surface of casting or derust the surface of metal workpiece
2.0.22
remote controlled testing
testing method that the implementation of testing, signal observation and evaluation of defects are all or partially completed by mechanical devices
2.0.23
scanning
mechanical device that makes the probe on the detection surface move relative to the workpiece to be tested during ultrasonic testing
2.0.24
prods
hand-held rod electrode connected with flexible cable and leading magnetization current into and out of the specimen in the magnetic particle testing
2.0.25
radiation accident
accidental abnormal exposure of personnel caused by the loss, theft, out of control of radioactive sources or the out of control of radioisotopes and radiation devices
2.0.26
radiation dose
a measure of radiation received or "absorbed" by an object
2.0.27
radiation controlled area
area divided in a radiation workplace in which special protection and safety measures are required.
2.0.28
radiation supervised area
area located outside the radiation control area in which special protection or safety measures are not required, but the radiation dose shall be continuously tested
3 General requirements
3.1 On-site management
3.1.1 Units engaged in petrochemical engineering construction shall have corresponding qualifications and undertake projects within the scope permitted by their qualification grades.
3.1.2 Construction enterprises must obtain safety production license. Special operating personnel must obtain corresponding job qualification certificates.
3.1.3 The principal responsible persons of each unit participating in the construction of petrochemical engineering projects shall be fully responsible for the safety production of their own units.
3.1.4 Each unit participating in the construction of petrochemical engineering projects shall establish its own safety production assurance system, which shall be effectively implemented and continuously improved.
3.1.5 All units participating in the construction of petrochemical engineering projects shall carry out education and training on construction fire, occupational health, labor safety and health and environmental protection for personnel entering the site.
3.1.6 All units participating in the construction of petrochemical engineering projects shall develop emergency rescue plans for production safety accidents, establish emergency rescue organizations or arrange emergency rescue personnel, equip necessary emergency rescue equipment and devices, and organize drills.
3.1.7 All personnel entering the construction site must dress according to the labor protection requirements.
3.1.8 Safety warning signs shall be set up on the roads on the construction site. The roads shall be smooth and solid, without any equipment and materials stacked. If blocking is required, approval procedures shall be handled and obvious signs shall be set.
3.1.9 No kindling or smoking is allowed in places where fireworks are prohibited.
3.1.10 All machines, tools, equipment and vehicles entering the construction site shall go through the formalities of permission.
3.1.11 Before construction, the development unit shall sign a safety agreement with the construction unit.
3.1.12 After an accident occurs, it shall be reported level by level according to the regulations, and it is not allowed to conceal, falsely report or delay the report.
3.2 Protection of construction environment
I General requirements
3.2.1 The management system of environmental protection and environmental sanitation shall be established and the environmental protection plan shall be formulated during the construction of the project.
3.2.2 An emergency plan for environmental pollution and public health emergencies at the construction site shall be formulated.
II Prevention of air pollution
3.2.3 When transporting materials prone to dust, they shall be transported in a closed manner or covered. Facilities for washing vehicles shall be set at the entrance and exit of the construction site, and sediment shall not be taken out of the site.
3.2.4 Measures such as covering, solidifying, greening and sprinkling water shall be taken on the construction site to reduce dust.
3.2.5 When the pollutants discharged from pretreatment and painting operations may affect the air quality in the surrounding areas, they shall be discharged to the atmosphere after taking purification measures.
3.2.6 The emission of flue gas or exhaust gas from boilers, mechanical equipment and vehicles used on the construction site shall meet the requirements of the corresponding national environmental protection emission standards.
3.2.7 Construction waste and domestic garbage on the construction site shall be stored in different categories and transported to designated places.
3.2.8 Incineration of various wastes is strictly prohibited on the construction site.
III Prevention of water and soil pollution
3.2.9 The mud and sewage on the construction site shall not be directly discharged into urban drainage facilities, rivers, lakes and ponds without treatment.
3.2.10 The oil and chemical solvents stored on the construction site shall not leak, and a special warehouse shall be set up. Waste oil and chemical solvents shall be treated centrally and shall not be dumped at will.
Foreword ii
1 General
2 Terms
3 General requirements
3.1 On-site management
3.2 Protection of construction environment
3.3 Fire operation for construction
3.4 Operation in confined space
3.5 Work at heights
3.6 Welding and cutting operations
3.7 Seasonal construction
3.8 Acid and alkali operation
3.9 Degreasing operations
3.10 Transportation operation
3.11 On-site temporary building
4 Electricity on construction site
4.1 Management of power consumption
4.2 Power distribution and transmission and self-contained power supply
4.3 Distribution circuit
4.4 Distribution box and switch box
4.5 Grounding and neutral connection
4.6 Lighting power
5 Lifting operation
5.1 General requirements
5.2 Crane operation
5.3 Winch operation
5.4 Crane tackles
5.5 Tower crane lifting operation
5.6 Suspended platform operation
6 Scaffold operation
6.1 General requirements
6.2 Scaffold materials
6.3 Erection, use and dismantling
6.4 Scaffold with special forms
7 Civil construction operation
7.1 Earthwork and stonework operation
7.2 Pile foundation operation
7.3 Dynamic compaction operation
7.4 Open caisson operation
7.5 Masonry operation
7.6 Steel bar operation
7.7 Concrete operation
7.8 Formwork operation
7.9 Slipform operation
7.10 Waterproof and anti-corrosion operation
8 Installation operation
8.1 Manufacture and installation of metal structure
8.2 Equipment installation
8.3 On-site assembly welding of container
8.4 Pipeline installation
8.5 Electrical operation
8.6 Instrument operation
8.7 Painting operation
8.8 Heat insulation operation
8.9 Pressure test
8.10 Heat treatment operation
9 Construction inspection
9.1 General requirements
9.2 Construction survey
9.3 Component analysis
9.4 Physical test
9.5 Non-destructive testing
10 Use of construction machinery
10.1 General requirements
10.2 Hand-held electric tool
10.3 Hoisting and lifting machinery
10.4 Riveting and piping machinery
10.5 Welding machinery
10.6 Power machinery
10.7 Earthwork machinery
10.8 Transport machinery
10.9 Piling and hydraulic machinery
10.10 Concrete machinery
10.11 Steel bar processing machinery
10.12 Wood-working machinery
10.13 Decorative machinery
Explanation of wording in this code
1 General
1.0.1 This code is developed for the purpose of meeting the needs of petrochemical construction engineering, ensuring personal safety and health, protecting public property from loss and protecting the environment from harm.
1.0.2 This code is applicable to the safety technical management of construction engineering such as petroleum refining, petrochemical industry, chemical fiber and chemical fertilizer.
1.0.3 The construction of petrochemical engineering must adhere to the policy of "safety first and prevention oriented".
1.0.4 The construction safety technology of petrochemical engineering shall meet the requirements of, in addition to this code, the current relevant standards of the nation.
2 Terms
2.0.1
hot work
all kinds of metal welding, cutting operations and other operations that produce sparks and open flames in petrochemical engineering construction
2.0.2
specified hot work area
area where hot work may be carried out without a hot work permit within the limited scope of the construction site of petrochemical engineering
2.0.3
life yarn
rope specially used for hanging seat belts in work at heights
2.0.4
electricity on construction site
power lines and electrical facilities provided for the construction projects and removed upon the completion of the construction
2.0.5
distributing tank
distribution device arranged in the construction distribution room (including independent distribution room and box-type substation), including incoming and outgoing cabinets
2.0.6
total distribution box
floor-type power distribution device arranged in the power load center, with the incoming end connected to the outgoing cabinet of the power distribution room, and the outgoing end connected to the sub-distribution box or high-power electrical equipment
2.0.7
sub-distribution box
distribution device distributed at various construction points to allow the electrical equipment to obtain power nearby, with the incoming end connected to the total distribution box and outgoing end connected to switch boxes or electrical equipment
2.0.8
distribution box
general name of the total distribution box and sub-distribution box
2.0.9
switch box
final-stage distribution device with the incoming end connected to the sub-distribution box and the outgoing end connected to the electrical equipment
2.0.10
low voltage
voltage with AC-to-ground rated value of 1kV and below
2.0.11
high voltage
voltage with AC-to-ground rated value above 1kV
2.0.12
safety extra-low voltage (SELV)
voltage between conductors or between either conductor and ground with an AC RMS not exceeding 50V in a circuit isolated from a power source by a safety isolating transformer
2.0.13
safety isolating transformer
isolating transformer for providing power supply for safety extra-low voltage circuit,
2.0.14
TN-S system
neutral protection system with working null line and protective null line set separately
2.0.15
work at heights
any operation carried out at a height where it is possible to fall at or above the datum level of falling height 2m
2.0.16
winter construction
operation carried out in the environment where the outdoor daily average temperature is steadily lower than + 5°C for 5 consecutive days
2.0.17
confined spaces
closed, narrow and poorly ventilated compartments with restricted entrance and exit, or closed or open poorly ventilated spaces with a depth greater than 1.2m, which can only be accessed for operation by one person
2.0.18
painting operations
general name for the production activities carried out by the operating personnel in the whole painting process
2.0.19
heat treatment
process of heating, holding and cooling metal materials or workpieces in an appropriate way to obtain the expected metallographic structure and physical properties
2.0.20
shot blasting
process of spraying steel shot (cut into granules by steel wire) onto metal workpiece with high-speed rotating impeller to strengthen metal surface and remove rust from surface
2.0.21
shot peening
process of spraying a large number of cast iron shot or steel shot to the surface of metal workpiece with compressed air or centrifugal force to remove sintered sand layer on the surface of casting or derust the surface of metal workpiece
2.0.22
remote controlled testing
testing method that the implementation of testing, signal observation and evaluation of defects are all or partially completed by mechanical devices
2.0.23
scanning
mechanical device that makes the probe on the detection surface move relative to the workpiece to be tested during ultrasonic testing
2.0.24
prods
hand-held rod electrode connected with flexible cable and leading magnetization current into and out of the specimen in the magnetic particle testing
2.0.25
radiation accident
accidental abnormal exposure of personnel caused by the loss, theft, out of control of radioactive sources or the out of control of radioisotopes and radiation devices
2.0.26
radiation dose
a measure of radiation received or "absorbed" by an object
2.0.27
radiation controlled area
area divided in a radiation workplace in which special protection and safety measures are required.
2.0.28
radiation supervised area
area located outside the radiation control area in which special protection or safety measures are not required, but the radiation dose shall be continuously tested
3 General requirements
3.1 On-site management
3.1.1 Units engaged in petrochemical engineering construction shall have corresponding qualifications and undertake projects within the scope permitted by their qualification grades.
3.1.2 Construction enterprises must obtain safety production license. Special operating personnel must obtain corresponding job qualification certificates.
3.1.3 The principal responsible persons of each unit participating in the construction of petrochemical engineering projects shall be fully responsible for the safety production of their own units.
3.1.4 Each unit participating in the construction of petrochemical engineering projects shall establish its own safety production assurance system, which shall be effectively implemented and continuously improved.
3.1.5 All units participating in the construction of petrochemical engineering projects shall carry out education and training on construction fire, occupational health, labor safety and health and environmental protection for personnel entering the site.
3.1.6 All units participating in the construction of petrochemical engineering projects shall develop emergency rescue plans for production safety accidents, establish emergency rescue organizations or arrange emergency rescue personnel, equip necessary emergency rescue equipment and devices, and organize drills.
3.1.7 All personnel entering the construction site must dress according to the labor protection requirements.
3.1.8 Safety warning signs shall be set up on the roads on the construction site. The roads shall be smooth and solid, without any equipment and materials stacked. If blocking is required, approval procedures shall be handled and obvious signs shall be set.
3.1.9 No kindling or smoking is allowed in places where fireworks are prohibited.
3.1.10 All machines, tools, equipment and vehicles entering the construction site shall go through the formalities of permission.
3.1.11 Before construction, the development unit shall sign a safety agreement with the construction unit.
3.1.12 After an accident occurs, it shall be reported level by level according to the regulations, and it is not allowed to conceal, falsely report or delay the report.
3.2 Protection of construction environment
I General requirements
3.2.1 The management system of environmental protection and environmental sanitation shall be established and the environmental protection plan shall be formulated during the construction of the project.
3.2.2 An emergency plan for environmental pollution and public health emergencies at the construction site shall be formulated.
II Prevention of air pollution
3.2.3 When transporting materials prone to dust, they shall be transported in a closed manner or covered. Facilities for washing vehicles shall be set at the entrance and exit of the construction site, and sediment shall not be taken out of the site.
3.2.4 Measures such as covering, solidifying, greening and sprinkling water shall be taken on the construction site to reduce dust.
3.2.5 When the pollutants discharged from pretreatment and painting operations may affect the air quality in the surrounding areas, they shall be discharged to the atmosphere after taking purification measures.
3.2.6 The emission of flue gas or exhaust gas from boilers, mechanical equipment and vehicles used on the construction site shall meet the requirements of the corresponding national environmental protection emission standards.
3.2.7 Construction waste and domestic garbage on the construction site shall be stored in different categories and transported to designated places.
3.2.8 Incineration of various wastes is strictly prohibited on the construction site.
III Prevention of water and soil pollution
3.2.9 The mud and sewage on the construction site shall not be directly discharged into urban drainage facilities, rivers, lakes and ponds without treatment.
3.2.10 The oil and chemical solvents stored on the construction site shall not leak, and a special warehouse shall be set up. Waste oil and chemical solvents shall be treated centrally and shall not be dumped at will.
Contents of GB 50484-2008
Foreword ii
1 General
2 Terms
3 General requirements
3.1 On-site management
3.2 Protection of construction environment
3.3 Fire operation for construction
3.4 Operation in confined space
3.5 Work at heights
3.6 Welding and cutting operations
3.7 Seasonal construction
3.8 Acid and alkali operation
3.9 Degreasing operations
3.10 Transportation operation
3.11 On-site temporary building
4 Electricity on construction site
4.1 Management of power consumption
4.2 Power distribution and transmission and self-contained power supply
4.3 Distribution circuit
4.4 Distribution box and switch box
4.5 Grounding and neutral connection
4.6 Lighting power
5 Lifting operation
5.1 General requirements
5.2 Crane operation
5.3 Winch operation
5.4 Crane tackles
5.5 Tower crane lifting operation
5.6 Suspended platform operation
6 Scaffold operation
6.1 General requirements
6.2 Scaffold materials
6.3 Erection, use and dismantling
6.4 Scaffold with special forms
7 Civil construction operation
7.1 Earthwork and stonework operation
7.2 Pile foundation operation
7.3 Dynamic compaction operation
7.4 Open caisson operation
7.5 Masonry operation
7.6 Steel bar operation
7.7 Concrete operation
7.8 Formwork operation
7.9 Slipform operation
7.10 Waterproof and anti-corrosion operation
8 Installation operation
8.1 Manufacture and installation of metal structure
8.2 Equipment installation
8.3 On-site assembly welding of container
8.4 Pipeline installation
8.5 Electrical operation
8.6 Instrument operation
8.7 Painting operation
8.8 Heat insulation operation
8.9 Pressure test
8.10 Heat treatment operation
9 Construction inspection
9.1 General requirements
9.2 Construction survey
9.3 Component analysis
9.4 Physical test
9.5 Non-destructive testing
10 Use of construction machinery
10.1 General requirements
10.2 Hand-held electric tool
10.3 Hoisting and lifting machinery
10.4 Riveting and piping machinery
10.5 Welding machinery
10.6 Power machinery
10.7 Earthwork machinery
10.8 Transport machinery
10.9 Piling and hydraulic machinery
10.10 Concrete machinery
10.11 Steel bar processing machinery
10.12 Wood-working machinery
10.13 Decorative machinery
Explanation of wording in this code
