GB 30871-2022 Safety specifications of special work in hazardous chemicals enterprises English
1 Scope
This standard specifies the safety requirements for hot work, confined space entry, blinding-pipeline operation with stop plate, work at height, lifting work, temporary electricity work, excavation work, work for road breaking and other special work of hazardous chemicals enterprises.
This standard is applicable to hazardous chemicals production and operation (including storage) enterprises and chemical and pharmaceutical enterprises (hereinafter referred to as "hazardous chemicals enterprises").
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2894 Safety signs and guideline for the use
GB/T 3608 Classification of work at heights
GB/T 5082 Cranes - Hand signals
GB 6095 Fall protection - Personal fall protection systems
GB 15322.3 Combustible gas detectors - Part 3: Portable combustible gas detectors for industrial and commercial use
GB 15577 Safety regulations for dust explosion prevention and protection
GB/T 18664 Selection, use and maintenance of respiratory protective equipment
GB 24543 Personal fall protection equipment - Lanyards
GB 30077 Requirements on emergency materials equipment for hazardous chemical enterprises
GB 39800.1 Specification for the provision of personal protective equipment - Part 1:General requirement
GB 50194 Code for safety of power supply and consumption for construction site
GB/T 50493-2019 Standard for design of combustible gas and toxic gas detection and alarm for petrochemical industry
GB 51210 Unified standard for safety of scaffold in construction
DL 409 Rules of safe operation in power industry (electric power line part)
GBZ 2.1 Occupational exposure limits for hazardous agents in the workplace - Part 1: Chemical hazardous agents
GBZ/T 260 Guideline of identification of contraindication to job placement
HG/T 21547 Paddle blank, Paddle spacer, Figure-8 blank for piping system
JB/T 2772 Components of valves - High pressure blanks
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
special work
hot work, confined space entry, blinding-pipeline operation with stop plate, work at height, lifting work, temporary electricity, excavation work, work for road breaking, etc. possibly involved in the production and operation process of hazardous chemicals enterprises and possibly harmful to the safety of workers, other persons as well as surrounding buildings (structures), equipment and facilities
3.2
fire and explosive area
medium environments such as gas, vapor and dust that can form explosive mixtures with air, and places that may cause fire and explosion under high temperature, heat, friction, impact, spontaneous combustion and other circumstances
3.3
fixed hot work area
area designated for hot work in non-fire and explosive area
3.4
hot work
unconventional work possibly generating flame, spark or hot surface in fire-forbidden area except process facility directly or indirectly generating open fire
Note: Hot work includes the work carried out with electric welding machine, gas welding (cutting) machine, blast burner, electric drill, grinding wheel, sand-blasting machine, etc.
3.5
confined space
poor-ventilated closed and semi-closed facilities and sites with limited entrance and exit, possibly with inflammables, explosives and toxic and harmful substances, or lacking oxygen, which threaten the health and life safety of personnel entering into them
Note: Confined space includes reactor, tower, caldron, trench, tank, furnace, drum, pipeline as well as basement, inspection well, pit (pool), sewer or other closed and semi-closed sites.
3.6
confined space entry
work performed by entering or probing into a confined space
3.7
blinding-pipeline operation with stop plate
operation for installing stop plate onto or removing it from equipment or pipeline
3.8
work at height
work carried out at a height of 2m or more above the falling datum plane, with the worker at the risk of falling
Note: Falling datum plane refers to the horizontal plane where the lowest point of falling place is in.
3.9
lifting work
work process of lifting the equipment, workpieces, apparatuses, materials, etc. to change their positions by various lifting machines
3.10
temporary electricity
impermanent electrical equipment connected to a power supply in formal operation
3.11
excavation work
work where earth excavation, piling, drilling, pit prospecting or ground anchor inserting is carried out to a depth more than 0.5m; soil filling or site leveling is carried out with construction machines like bulldozer, road roller, etc. which possibly influence the facilities concealed underground
3.12
work for road breaking
work like project construction, lifting, swinging, etc. carried out on main road, branch road and approach road of workshop in production area which influence normal traffic
4 General requirements
4.1 Prior to work, hazardous chemicals enterprises shall organize the work units to identify the hazardous/harmful factors possibly existing in work site and work process, carry out work hazard analysis, and formulate corresponding safety risk control measures.
4.2 Prior to work, hazardous chemicals enterprises shall take measures to treat the equipment, facilities and pipelines to be under work to ensure that the corresponding work safety requirements are met:
a) For special work with safety requirements for the media in equipment and pipelines, treatment shall be conducted by emptying, isolation, cleaning, replacement, etc.;
b) Reliable energy isolation measures shall be taken for equipment, facilities and environment with energy;
Note: Energy isolation refers to the effective control, isolation and protection of potential energy that may cause personal injury, environmental damage, equipment damage and property loss due to out-of-control, which includes mechanical isolation, process isolation, electrical isolation, and radioactive source isolation.
c) Appropriate measures for the safe disposal of radioactive sources shall be taken.
4.3 Personnel entering the work site shall properly wear personal protective equipment meeting the requirements of GB 39800.1.
Foreword II
Introduction V
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Hot work
6 Confined space entry
7 Blinding-pipeline operation with stop plate
8 Work at height
9 Lifting work
10 Temporary electricity work
11 Excavation work
12 Work for road breaking
Annex A (Informative) Styles of safety work permits
Annex B (Informative) Management on safety work permits
GB 30871-2022 Safety specifications of special work in hazardous chemicals enterprises English
1 Scope
This standard specifies the safety requirements for hot work, confined space entry, blinding-pipeline operation with stop plate, work at height, lifting work, temporary electricity work, excavation work, work for road breaking and other special work of hazardous chemicals enterprises.
This standard is applicable to hazardous chemicals production and operation (including storage) enterprises and chemical and pharmaceutical enterprises (hereinafter referred to as "hazardous chemicals enterprises").
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2894 Safety signs and guideline for the use
GB/T 3608 Classification of work at heights
GB/T 5082 Cranes - Hand signals
GB 6095 Fall protection - Personal fall protection systems
GB 15322.3 Combustible gas detectors - Part 3: Portable combustible gas detectors for industrial and commercial use
GB 15577 Safety regulations for dust explosion prevention and protection
GB/T 18664 Selection, use and maintenance of respiratory protective equipment
GB 24543 Personal fall protection equipment - Lanyards
GB 30077 Requirements on emergency materials equipment for hazardous chemical enterprises
GB 39800.1 Specification for the provision of personal protective equipment - Part 1:General requirement
GB 50194 Code for safety of power supply and consumption for construction site
GB/T 50493-2019 Standard for design of combustible gas and toxic gas detection and alarm for petrochemical industry
GB 51210 Unified standard for safety of scaffold in construction
DL 409 Rules of safe operation in power industry (electric power line part)
GBZ 2.1 Occupational exposure limits for hazardous agents in the workplace - Part 1: Chemical hazardous agents
GBZ/T 260 Guideline of identification of contraindication to job placement
HG/T 21547 Paddle blank, Paddle spacer, Figure-8 blank for piping system
JB/T 2772 Components of valves - High pressure blanks
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
special work
hot work, confined space entry, blinding-pipeline operation with stop plate, work at height, lifting work, temporary electricity, excavation work, work for road breaking, etc. possibly involved in the production and operation process of hazardous chemicals enterprises and possibly harmful to the safety of workers, other persons as well as surrounding buildings (structures), equipment and facilities
3.2
fire and explosive area
medium environments such as gas, vapor and dust that can form explosive mixtures with air, and places that may cause fire and explosion under high temperature, heat, friction, impact, spontaneous combustion and other circumstances
3.3
fixed hot work area
area designated for hot work in non-fire and explosive area
3.4
hot work
unconventional work possibly generating flame, spark or hot surface in fire-forbidden area except process facility directly or indirectly generating open fire
Note: Hot work includes the work carried out with electric welding machine, gas welding (cutting) machine, blast burner, electric drill, grinding wheel, sand-blasting machine, etc.
3.5
confined space
poor-ventilated closed and semi-closed facilities and sites with limited entrance and exit, possibly with inflammables, explosives and toxic and harmful substances, or lacking oxygen, which threaten the health and life safety of personnel entering into them
Note: Confined space includes reactor, tower, caldron, trench, tank, furnace, drum, pipeline as well as basement, inspection well, pit (pool), sewer or other closed and semi-closed sites.
3.6
confined space entry
work performed by entering or probing into a confined space
3.7
blinding-pipeline operation with stop plate
operation for installing stop plate onto or removing it from equipment or pipeline
3.8
work at height
work carried out at a height of 2m or more above the falling datum plane, with the worker at the risk of falling
Note: Falling datum plane refers to the horizontal plane where the lowest point of falling place is in.
3.9
lifting work
work process of lifting the equipment, workpieces, apparatuses, materials, etc. to change their positions by various lifting machines
3.10
temporary electricity
impermanent electrical equipment connected to a power supply in formal operation
3.11
excavation work
work where earth excavation, piling, drilling, pit prospecting or ground anchor inserting is carried out to a depth more than 0.5m; soil filling or site leveling is carried out with construction machines like bulldozer, road roller, etc. which possibly influence the facilities concealed underground
3.12
work for road breaking
work like project construction, lifting, swinging, etc. carried out on main road, branch road and approach road of workshop in production area which influence normal traffic
4 General requirements
4.1 Prior to work, hazardous chemicals enterprises shall organize the work units to identify the hazardous/harmful factors possibly existing in work site and work process, carry out work hazard analysis, and formulate corresponding safety risk control measures.
4.2 Prior to work, hazardous chemicals enterprises shall take measures to treat the equipment, facilities and pipelines to be under work to ensure that the corresponding work safety requirements are met:
a) For special work with safety requirements for the media in equipment and pipelines, treatment shall be conducted by emptying, isolation, cleaning, replacement, etc.;
b) Reliable energy isolation measures shall be taken for equipment, facilities and environment with energy;
Note: Energy isolation refers to the effective control, isolation and protection of potential energy that may cause personal injury, environmental damage, equipment damage and property loss due to out-of-control, which includes mechanical isolation, process isolation, electrical isolation, and radioactive source isolation.
c) Appropriate measures for the safe disposal of radioactive sources shall be taken.
4.3 Personnel entering the work site shall properly wear personal protective equipment meeting the requirements of GB 39800.1.
Contents of GB 30871-2022
Foreword II
Introduction V
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Hot work
6 Confined space entry
7 Blinding-pipeline operation with stop plate
8 Work at height
9 Lifting work
10 Temporary electricity work
11 Excavation work
12 Work for road breaking
Annex A (Informative) Styles of safety work permits
Annex B (Informative) Management on safety work permits
