GBJ 147-1990 Specification for construction and acceptance of high voltage electrical equipment for electrical installation projects
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Electrical Installation Engineering
High Voltage Electrical Equipment Construction and Acceptance Specification
GBJ147—90
1991Beijing
Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Electrical Installation Engineering
High Voltage Electrical Equipment Construction and Acceptance Specification
GBJ147—90
Editor Department: Former Ministry of Water Resources and Electric Power of the People's Republic of ChinaApproval Department: Ministry of Construction of the People's Republic of ChinaEffective Date: October 1, 1991
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full Text Information System
Notice on the Release of National Standards
"Construction and Acceptance Specifications for High Voltage Electrical Equipment in Electrical Installation Projects" and Other Three Specifications (90) Jianbiaozi No. 698
According to the requirements of the former State Planning Commission's Document No. [1986] 2630, the three specifications "Construction and Acceptance Specifications for High Voltage Electrical Equipment in Electrical Installation Projects" and other specifications organized and revised by the former Ministry of Water Resources and Electric Power have been reviewed by relevant departments. The "Construction and Acceptance Specifications for High Voltage Electrical Equipment in Electrical Installation Projects" GBJ147-90; "Construction and Acceptance Specifications for Power Transformers, Oil-immersed Reactors, and Transformers in Electrical Installation Projects" GBJ148-90; "Construction and Acceptance Specifications for Busbar Installations in Electrical Installation Projects" GBJ149-90 are now approved as national standards. They will be implemented from October 1, 1991.
The high-voltage electrical appliances, power transformers, mutual inductors, and busbar devices in the original national standard "Electrical Installation Engineering Construction and Acceptance Specifications" GBJ232-82 are abolished at the same time.
The three specifications are managed by the Ministry of Energy, and the specific interpretation and other work are the responsibility of the Ministry of Energy's Electric Power Construction Research Institute. The publication and distribution is organized by the Ministry of Construction's Standards and Norms Research Institute.
Ministry of Construction of the People's Republic of China
December 30, 1990
Engineering Construction Standards Full-text Information System
W. Engineering Construction Standards Full-text Information System
Revision Notes
This specification is edited by the former Ministry of Water Resources and Electric Power in accordance with the requirements of the former State Planning Commission's Document No. 2630 (1986), and is specifically compiled by the Ministry of Energy's Electric Power Construction Research Institute in conjunction with relevant units.
During the revision process, the specification group conducted extensive investigations and studies, carefully summarized the experience since the implementation of the original specification, absorbed some scientific research results, and widely solicited opinions from relevant units across the country. Finally, our department reviewed and finalized the draft together with relevant departments. This specification is divided into eleven chapters and one appendix. The main contents of this revision are: 1. According to the needs and actual situation of the development of my country's power industry, the relevant contents of the construction and acceptance of high-voltage electrical appliances with a voltage level of 500kV are added, so that the scope of application of this specification is expanded from 330kV to 500kV and below; 2. The relevant contents of high-voltage electrical appliances newly adopted in electrical installation projects in recent years, such as vacuum circuit breakers, sulfur hexafluoride circuit breakers, sulfur hexafluoride enclosed combination electrical appliances, and metal oxide lightning arresters, are added;
3. The different types of operating mechanisms originally matched with various circuit breakers are separately extracted and listed as the "Operating Mechanism" chapter to clarify the construction and acceptance requirements of various types of operating mechanisms;
4. The relevant contents of the main coil of dry-type reactors and surge arresters are supplemented in the "Reactor" chapter;
5. Partial modification and supplementation of other relevant provisions. If you find any imperfections during the implementation of this specification, please send your opinions and relevant materials to the Electric Power Construction Research Institute of the Ministry of Energy (Beijing Liangxiang, Postal Code: 102401) for reference in future revisions.
Ministry of Energy
December 1989
Engineering Construction Standards Full Text Information System
W.bzsoso.coIEngineering Construction Standards Full Text Information System
Chapter 1 General
Chapter 2
Air Circuit Breakers
Section 1
Section 2
Section 3
General Provisions
Installation of Air Circuit Breakers
Section 4
Project Handover and Acceptance
Chapter 3 Oil Circuit Breakers·
Section 1
Section 2
General Provisions
Installation and Adjustment of Oil Circuit Breakers
Project Handover and Acceptance||t t||Section 3
Chapter 4 Sulfur Hexafluoride Circuit Breaker
Section 1
General Provisions
Section 2 Installation and Adjustment of Sulfur Hexafluoride Circuit BreakersSection 3 Sulfur Hexafluoride Gas Management and Filling Project Handover and Acceptance
Section 4
Chapter 5 Sulfur Hexafluoride Enclosed Combined Electrical Appliances..
Section 1
General Provisions
Section 2 Installation and Adjustment
Section 3
Sulfur Hexafluoride Gas Management and Filling
Section 4 Project Handover and Acceptance
Chapter 6 Vacuum Circuit Breaker...
Section 1
General Provisions
Section 2 Installation and Adjustment of Vacuum Circuit BreakersSection 3. Project Handover and Acceptance．
Engineering Construction Standards Full Text Information System
Electricity
: (7)
(13)
(16)
(18)
(19)
Engineering Construction Standards Full Text Information System
Chapter 7 Operating Mechanism of Circuit Breakers
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
General Provisions
Installation of Actuating Mechanisms·
Pneumatic Mechanisms.
Hydraulic Mechanisms
Electromagnetic Mechanisms*
Spring Mechanisms
Project Handover and Acceptance
Chapter 8 Disconnectors, Load Switches and High-Voltage FusesSection 1
General Provisions.
Section 2 Installation and Adjustment||tt| |Section 3 Project Handover and Acceptance
Chapter 9
Chapter 10
Section 1
Section 2Www.bzxZ.net
Section 3
Section 4
Reactor
Lightning Arrester
General Provisions
Valve Type Lightning Arrester
Vent Type Lightning Arrester
Project Handover and Acceptance
Chapter 11
Appendix 1
Additional Notes Ming
Capacitor
Explanation of terms used in this specification
Engineering 2 Construction Standard Full Text Information System
(26)
·(31)
(31)
Engineering Construction Standard Full Text Information System
Chapter I General Provisions
Article 1.0.1 This specification is formulated to ensure the quality of construction and installation of high-voltage electrical appliances, promote the advancement of installation technology, and ensure the safe operation of equipment. Article 1.0.2 This specification applies to the construction and acceptance of AC 500kV and below air circuit breakers, oil circuit breakers, sulfur hexafluoride circuit breakers, sulfur hexafluoride enclosed combination electrical appliances, vacuum circuit breakers, disconnectors, load switches, high-voltage fuses, reactors, lightning arresters and capacitor installation projects.
Article 1.0.3 The installation of high-voltage electrical appliances shall be carried out in accordance with the approved design. Article 1.0.4 The transportation and storage of equipment and instruments shall comply with the requirements of this specification. When there are special requirements for the product, they shall also comply with the requirements of the product. Article 1.0.5 The storage period of equipment and instruments before installation shall be 1 year or less. When long-term storage is required, it shall comply with the special provisions for the storage of equipment and instruments.
Article 1.0.6 The equipment and instruments used shall comply with the provisions of the current national technical standards and shall have qualification certificates. The equipment shall have a nameplate. Article 1.0.7 After the equipment and instruments arrive at the site, the following acceptance inspections shall be carried out in a timely manner:
1. The packaging and sealing shall be in good condition.
2. Unpacking inspection and inventory, the specifications shall comply with the design requirements, and the accessories and spare parts shall be complete.
3. The technical documents of the product shall be complete.
4. Make an appearance inspection in accordance with the requirements of this specification. Article 1.0.8 The safety and technical measures during construction shall comply with the provisions of this specification and the current relevant safety and technical standards and the technical documents of the product. For important processes, safety technical measures should be formulated first.
Section 1.0.Article 9 Construction projects related to the installation of high-voltage electrical appliances shall meet the following requirements:
1. The construction quality of buildings and structures related to the installation of high-voltage electrical appliances shall meet the relevant provisions of the current national construction regulations and acceptance specifications. When there are special requirements for equipment and design, they shall also meet their requirements. 2. Before the installation of equipment, the construction project shall meet the following conditions: 1. The roof and floor slabs are completed and no leakage is allowed; 2. The indoor ground base is completed and the ground elevation is marked on the wall; in the distribution room, after the equipment base and busbar frame are installed, the ground is smoothed and the doors and windows of the distribution room are installed;
3. The pre-processed parts and reserved holes meet the design requirements, and the embedded parts are firm; 4. All work that may damage the installed equipment during decoration or that cannot be decorated after the equipment is installed should be completed; 5. The concrete foundation and the structure bracket reach the strength and rigidity allowed for installation, and the welding quality of the equipment bracket meets the requirements;
6. The templates, construction facilities and debris are cleaned up, and there is enough land for installation, and the construction road is unobstructed.
7. The walkway boards, railings, platforms and ladders of the high-rise structure are complete and firm; 8. The foundation pit has been backfilled and compacted.
3. Before the equipment is put into operation, the construction project should meet the following requirements: 1. Remove the dirt on the structure, fill the holes and decorate; 2. Complete the secondary grouting and plastering;
3. Protective net doors, railings and ladders are complete; 4. The site of the outdoor power distribution device should be flat; 5. The work that cannot be carried out or affects the safety of operation after receiving power is completed. Article 1.0.10 The fasteners used for equipment installation, except for the anchor bolts, should be galvanized products, the fasteners used outdoors should be hot-dip galvanized products, and the fasteners used for electrical wiring terminals should comply with the provisions of the current national standard "Wiring Terminals for Transformers, High-voltage Electrical Appliances and Bushings".
The quality of porcelain parts of high-voltage electrical appliances shall comply with the provisions of Article 1.0.11 of the current national standard
"Technical Conditions for Porcelain Parts of High-voltage Insulators" and the technical conditions of relevant electric porcelain products. Article 1.0.12 In addition to the provisions of this specification, the construction and acceptance of high-voltage electrical appliances shall also comply with the provisions of relevant current national standards and specifications. Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
Chapter 2 Air Circuit Breakers
Section 1 General Provisions
Article 2.1.1 This chapter applies to air circuit breakers with a rated voltage of 3~500kV.
After the air circuit breaker arrives at the site, the storage should meet the following requirements: Article 21.2
1. The arc extinguishing chamber, gas storage cylinder, etc. should be well sealed; 3. The epoxy fiberglass air duct, insulating green pull rod, etc. should be kept indoors and should not be deformed;
3. The equipment and its porcelain parts should be placed firmly and should not be damaged. Section 2 Installation of air circuit breakers
Article 2.2.1 Before installing the air circuit breaker and its accessories, the following inspections should be carried out: 1. The appearance should be intact and free of damage that affects its performance. 2. The epoxy fiberglass air duct should not have cracks, peeling and damage. 3. The surface of the insulating pull rod should be clean and undamaged, the insulation should be good, the end connection parts should be firm and reliable, and the curvature should not exceed the technical requirements of the product. 4. The bonding between the porcelain sleeve and the metal flange should be firm and dense, and the flange joint surface should be flat without external injuries or casting sand holes.
5. The arc extinguishing chamber, the opening and closing valve, the starting valve, the main valve, the intermediate valve, the control valve and the exhaust valve and the transmission piston of the contact shall be partially or completely disassembled for inspection, except for the parts that the manufacturer stipulates not to be disassembled and specifically guaranteed. 6. The inspection of the voltage-equalizing capacitor shall comply with the relevant provisions of Chapter 11 of this specification. 7. When there is doubt about the appearance inspection of the high-strength support porcelain sleeve, it shall be subjected to a flaw detection test. There shall be no cracks or damage, and no repairs shall be made. Article 2.2.2 The foundation or bracket of the air circuit breaker shall meet the following requirements: 1. The error of the center distance and height of the foundation shall not be greater than 10mm. 2. The error of the center line of the reserved hole or the embedded iron plate shall not be greater than 10mm, and the error of the center line of the embedded bolt shall not be greater than 2mm. Article 2.2.3 The installation of the air circuit breaker shall be carried out in the weather without rain, snow and wind and sand; the disassembly inspection of the components should be carried out indoors or in a shed. Article 22.4 The disassembly inspection of air circuit breaker components shall meet the following requirements: 1. The valve system including the starting valve, main valve, intermediate valve, control valve, exhaust valve and the transmission piston of the arc extinguishing moving contact:
1. The piston, sleeve, spring, expansion ring and other parts shall be intact, clean and free of rust, and the sliding working surface shall be coated with the lubricant specified in the product; 2. The rubber sealing gasket (ring) shall be free of distortion, deformation, cracks and burrs, and shall have good elasticity; the sealing gasket (ring) shall match the size of the flange surface or the sealing groove on the flange surface;
3. The exhaust hole of the valve, the air hole for controlling the delay and the receiving interface of the valve inlet and outlet pipes shall be unobstructed;
4. The metal flange surface of the valve shall be clean, flat and free of sand holes; 5. During assembly, the openings of the piston expansion ring shall be staggered; the piston movement shall be flexible and without obstruction; the spring shall maintain the original degree of compression. 2. The main and auxiliary arc-extinguishing contacts, parallel resistors, and voltage-equalizing capacitors of the arc-extinguishing chamber: 1. The contact parts should be tightened, the arc-extinguishing contact finger spring should be complete and accurately positioned, and the silver-plated layer on the contact finger should be intact;
2. The interior of the arc-extinguishing chamber should be cleaned, the assembly dimensions of the components and the stroke of the arc-extinguishing moving contact transmission piston should meet the product requirements, and the installation direction of the nozzle should be correct; 3. The measured parallel resistor and voltage-equalizing capacitor values should meet the product regulations. 3. Transmission components:
1. The shaft should be clean and coated with grease suitable for the local climate; Engineering Construction Standard Full Text Information System
W.bzsosO.cO Engineering Construction Standard Full Text Information System
2. The transmission mechanism system should be flexible and reliable. Article 2.2.5 The installation of the air circuit breaker base should meet the following requirements: 1. The base should be installed firmly, and the phase-to-phase distance error of the three-phase base should not be greater than 5mm.
2. The flange surface supporting the porcelain sleeve should be horizontal. For three-phase linked air circuit breakers, the flange surfaces of the porcelain sleeves between phases should be on the same horizontal plane. 3. There should be no debris inside the gas storage cylinder, and it should be blown clean with compressed air or cleaned with a vacuum cleaner.
Article 2.2.6 The assembly of air circuit breakers should meet the following requirements: 1. Porcelain parts, epoxy fiberglass air ducts, insulating pull rods, etc. should be kept clean and dry. 2. The installation position of all components should be correct and maintain their proper horizontal or vertical position; the tightness of the tightening insulator should be appropriate. 3. The rubber sealing gasket (ring) used to connect the porcelain sleeve flange should not be deformed, cracked or cracked due to aging, and should match the size of the sealing groove. The compression of the rubber sealing gasket (ring) should not exceed 1/3 of its thickness or be implemented according to the technical regulations of the product. 4. The external terminal of the arc extinguisher should be smooth, and the soft wire used for connection should not have broken strands. 5. The connection between the air circuit breaker and its transmission part should be reliable, the anti-loosening nut should be tight, and the rotating shaft should be coated with grease suitable for the local climate. 6. The connection between the air pipe and the components should make the expansion mouth of the copper pipe fit tightly with the joint, the expansion mouth should not have cracks, and the inside of the pipe should be clean. Article 2.2.7 The control cabinet and phase control box should be well sealed, and the heating device should be intact.
Section 3 Adjustment
Article 2.3.1 The adjustment and operation test of the air circuit breaker shall comply with the following provisions:
1. All adjustment data shall meet the product requirements; the valve system functions well, and the transmission mechanism and buffer should be flexible and free of jamming. 2. When inflating, the pressure should be increased step by step, and the sealing should be checked under each air pressure. Engineering Construction Standard Full-text Information System
W.bzsoso.cOmAfter receiving power, the work that cannot be performed or affects the safe operation is completed. Article 1.0.10 Except for anchor bolts, the fasteners used for equipment installation shall be galvanized products, and the fasteners used outdoors shall be hot-dip galvanized products. The fasteners used for electrical wiring terminals shall comply with the provisions of the current national standard "Wiring terminals for transformers, high-voltage electrical appliances and bushings". The quality of porcelain parts of high-voltage electrical appliances shall comply with the provisions of Article 1.0.11 of the current national standard "Technical conditions for porcelain parts of high-voltage insulators" and the technical conditions of relevant electrical porcelain products. Article 1.0.12 In addition to the provisions of this specification, the construction and acceptance of high-voltage electrical appliances shall also comply with the provisions of the relevant current national standards and specifications. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2 Air Circuit Breakers
Section 1 General Provisions
Article 2.1.1 This chapter applies to air circuit breakers with a rated voltage of 3~500kV.
The storage of air circuit breakers after arriving at the site shall comply with the following requirements Article 21.2
1. The arc extinguishing chamber, gas storage cylinder, etc. should be well sealed; 3. Epoxy fiberglass air ducts, green insulation rods, etc. should be kept indoors and should not be deformed;
3. The equipment and its porcelain parts should be placed firmly and should not be damaged. Section 2 Installation of Air Circuit Breakers
Article 2.2.1 Before installing air circuit breakers and their accessories, the following inspections should be carried out: 1. The appearance should be intact and without damage that affects its performance. 2. The epoxy fiberglass air duct should not have cracks, peeling or damage. 3. The surface of the insulating pull rod should be clean and undamaged, the insulation should be good, the end connection parts should be firm and reliable, and the curvature should not exceed the technical requirements of the product. 4. The bonding between the porcelain sleeve and the metal flange should be firm and dense, and the flange joint surface should be flat without external injuries or casting sand holes.
5. The arc extinguishing chamber, the opening and closing valve, the starting valve, the main valve, the intermediate valve, the control valve and the exhaust valve and the transmission piston of the contact should be disassembled and inspected in part or in whole, except for the parts that the manufacturer stipulates not to be disassembled and specifically guaranteed. 6. The inspection of the voltage-equalizing capacitor shall comply with the relevant provisions of Chapter 11 of this specification. 7. When there is doubt about the appearance inspection of the high-strength support porcelain sleeve, it should be subjected to a flaw detection test. There shall be no cracks or damage, and it shall not be repaired. Article 2.2.2 The foundation or bracket of the air circuit breaker shall meet the following requirements: 1. The center distance and height error of the foundation shall not be greater than 10mm. , the error of the center line of the reserved hole or embedded iron plate should not be greater than 10mm, and the error of the center line of the embedded bolt should not be greater than 2mm. Article 2.2.3 The installation of air circuit breakers should be carried out in weather without rain, snow, wind or sand; the disassembly inspection of components should be carried out indoors or in a shed. Article 22.4 The disassembly inspection of air circuit breaker components shall meet the following requirements: 1. The valve system including the starting valve, main valve, intermediate valve, control valve, exhaust valve and the transmission piston of the arc extinguishing moving contact:
1. The piston, sleeve, spring, expansion ring and other parts shall be intact, clean and free of rust, and the sliding working surface shall be coated with the lubricant specified in the product; 2. The rubber sealing gasket (ring) shall be free of distortion, deformation, cracks and burrs, and shall have good elasticity; the sealing gasket (ring) shall match the size of the flange surface or the sealing groove on the flange surface;
3. The exhaust hole of the valve, the air hole for controlling the delay and the receiving interface of the valve inlet and outlet pipes shall be unobstructed;
4. The metal flange surface of the valve shall be clean, flat and free of sand holes; 5. During assembly, the openings of the piston expansion ring shall be staggered; the piston movement shall be flexible and without obstruction; the spring shall maintain the original degree of compression. 2. The main and auxiliary arc-extinguishing contacts, parallel resistors, and voltage-equalizing capacitors of the arc-extinguishing chamber: 1. The contact parts should be tightened, the arc-extinguishing contact finger spring should be complete and accurately positioned, and the silver-plated layer on the contact finger should be intact;
2. The interior of the arc-extinguishing chamber should be cleaned, the assembly dimensions of the components and the stroke of the arc-extinguishing moving contact transmission piston should meet the product requirements, and the installation direction of the nozzle should be correct; 3. The measured parallel resistor and voltage-equalizing capacitor values should meet the product regulations. 3. Transmission components:
1. The shaft should be clean and coated with grease suitable for the local climate; Engineering Construction Standard Full Text Information System
W.bzsosO.cO Engineering Construction Standard Full Text Information System
2. The transmission mechanism system should be flexible and reliable. Article 2.2.5 The installation of the air circuit breaker base should meet the following requirements: 1. The base should be installed firmly, and the phase-to-phase distance error of the three-phase base should not be greater than 5mm.
2. The flange surface supporting the porcelain sleeve should be horizontal. For three-phase linked air circuit breakers, the flange surfaces of the porcelain sleeves between phases should be on the same horizontal plane. 3. There should be no debris inside the gas storage cylinder, and it should be blown clean with compressed air or cleaned with a vacuum cleaner.
Article 2.2.6 The assembly of air circuit breakers should meet the following requirements: 1. Porcelain parts, epoxy fiberglass air ducts, insulating pull rods, etc. should be kept clean and dry. 2. The installation position of all components should be correct and maintain their proper horizontal or vertical position; the tightness of the tightening insulator should be appropriate. 3. The rubber sealing gasket (ring) used to connect the porcelain sleeve flange should not be deformed, cracked or cracked due to aging, and should match the size of the sealing groove. The compression of the rubber sealing gasket (ring) should not exceed 1/3 of its thickness or be implemented according to the technical regulations of the product. 4. The external terminal of the arc extinguisher should be smooth, and the soft wire used for connection should not have broken strands. 5. The connection between the air circuit breaker and its transmission part should be reliable, the anti-loosening nut should be tight, and the rotating shaft should be coated with grease suitable for the local climate. 6. The connection between the air pipe and the components should make the expansion mouth of the copper pipe fit tightly with the joint, the expansion mouth should not have cracks, and the inside of the pipe should be clean. Article 2.2.7 The control cabinet and phase control box should be well sealed, and the heating device should be intact.
Section 3 Adjustment
Article 2.3.1 The adjustment and operation test of the air circuit breaker shall comply with the following provisions:
1. All adjustment data shall meet the product requirements; the valve system functions well, and the transmission mechanism and buffer should be flexible and free of jamming. 2. When inflating, the pressure should be increased step by step, and the sealing should be checked under each air pressure. Engineering Construction Standard Full-text Information System
W.bzsoso.cOmAfter receiving power, the work that cannot be performed or affects the safe operation is completed. Article 1.0.10 Except for anchor bolts, the fasteners used for equipment installation shall be galvanized products, and the fasteners used outdoors shall be hot-dip galvanized products. The fasteners used for electrical wiring terminals shall comply with the provisions of the current national standard "Wiring terminals for transformers, high-voltage electrical appliances and bushings". The quality of porcelain parts of high-voltage electrical appliances shall comply with the provisions of Article 1.0.11 of the current national standard "Technical conditions for porcelain parts of high-voltage insulators" and the technical conditions of relevant electrical porcelain products. Article 1.0.12 In addition to the provisions of this specification, the construction and acceptance of high-voltage electrical appliances shall also comply with the provisions of the relevant current national standards and specifications. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2 Air Circuit Breakers
Section 1 General Provisions
Article 2.1.1 This chapter applies to air circuit breakers with a rated voltage of 3~500kV.
The storage of air circuit breakers after arriving at the site shall comply with the following requirements Article 21.2
1. The arc extinguishing chamber, gas storage cylinder, etc. should be well sealed; 3. Epoxy fiberglass air ducts, green insulation rods, etc. should be kept indoors and should not be deformed;
3. The equipment and its porcelain parts should be placed firmly and should not be damaged. Section 2 Installation of Air Circuit Breakers
Article 2.2.1 Before installing air circuit breakers and their accessories, the following inspections should be carried out: 1. The appearance should be intact and without damage that affects its performance. 2. The epoxy fiberglass air duct should not have cracks, peeling or damage. 3. The surface of the insulating pull rod should be clean and undamaged, the insulation should be good, the end connection parts should be firm and reliable, and the curvature should not exceed the technical requirements of the product. 4. The bonding between the porcelain sleeve and the metal flange should be firm and dense, and the flange joint surface should be flat without external injuries or casting sand holes.
5. The arc extinguishing chamber, the opening and closing valve, the starting valve, the main valve, the intermediate valve, the control valve and the exhaust valve and the transmission piston of the contact should be disassembled and inspected in part or in whole, except for the parts that the manufacturer stipulates not to be disassembled and specifically guaranteed. 6. The inspection of the voltage-equalizing capacitor shall comply with the relevant provisions of Chapter 11 of this specification. 7. When there is doubt about the appearance inspection of the high-strength support porcelain sleeve, it should be subjected to a flaw detection test. There shall be no cracks or damage, and it shall not be repaired. Article 2.2.2 The foundation or bracket of the air circuit breaker shall meet the following requirements: 1. The center distance and height error of the foundation shall not be greater than 10mm. , the error of the center line of the reserved hole or embedded iron plate should not be greater than 10mm, and the error of the center line of the embedded bolt should not be greater than 2mm. Article 2.2.3 The installation of air circuit breakers should be carried out in weather without rain, snow, wind or sand; the disassembly inspection of components should be carried out indoors or in a shed. Article 22.4 The disassembly inspection of air circuit breaker components shall meet the following requirements: 1. The valve system including the starting valve, main valve, intermediate valve, control valve, exhaust valve and the transmission piston of the arc extinguishing moving contact:
1. The piston, sleeve, spring, expansion ring and other parts shall be intact, clean and free of rust, and the sliding working surface shall be coated with the lubricant specified in the product; 2. The rubber sealing gasket (ring) shall be free of distortion, deformation, cracks and burrs, and shall have good elasticity; the sealing gasket (ring) shall match the size of the flange surface or the sealing groove on the flange surface;
3. The exhaust hole of the valve, the air hole for controlling the delay and the receiving interface of the valve inlet and outlet pipes shall be unobstructed;
4. The metal flange surface of the valve shall be clean, flat and free of sand holes; 5. During assembly, the openings of the piston expansion ring shall be staggered; the piston movement shall be flexible and without obstruction; the spring shall maintain the original degree of compression. 2. The main and auxiliary arc-extinguishing contacts, parallel resistors, and voltage-equalizing capacitors of the arc-extinguishing chamber: 1. The contact parts should be tightened, the arc-extinguishing contact finger spring should be complete and accurately positioned, and the silver-plated layer on the contact finger should be intact;
2. The interior of the arc-extinguishing chamber should be cleaned, the assembly dimensions of the components and the stroke of the arc-extinguishing moving contact transmission piston should meet the product requirements, and the installation direction of the nozzle should be correct; 3. The measured parallel resistor and voltage-equalizing capacitor values should meet the product regulations. 3. Transmission components:
1. The shaft should be clean and coated with grease suitable for the local climate; Engineering Construction Standard Full Text Information System
W.bzsosO.cO Engineering Construction Standard Full Text Information System
2. The transmission mechanism system should be flexible and reliable. Article 2.2.5 The installation of the air circuit breaker base should meet the following requirements: 1. The base should be installed firmly, and the phase-to-phase distance error of the three-phase base should not be greater than 5mm.
2. The flange surface supporting the porcelain sleeve should be horizontal. For three-phase linked air circuit breakers, the flange surfaces of the porcelain sleeves between phases should be on the same horizontal plane. 3. There should be no debris inside the gas storage cylinder, and it should be blown clean with compressed air or cleaned with a vacuum cleaner.
Article 2.2.6 The assembly of air circuit breakers should meet the following requirements: 1. Porcelain parts, epoxy fiberglass air ducts, insulating pull rods, etc. should be kept clean and dry. 2. The installation position of all components should be correct and maintain their proper horizontal or vertical position; the tightness of the tightening insulator should be appropriate. 3. The rubber sealing gasket (ring) used to connect the porcelain sleeve flange should not be deformed, cracked or cracked due to aging, and should match the size of the sealing groove. The compression of the rubber sealing gasket (ring) should not exceed 1/3 of its thickness or be implemented according to the technical regulations of the product. 4. The external terminal of the arc extinguisher should be smooth, and the soft wire used for connection should not have broken strands. 5. The connection between the air circuit breaker and its transmission part should be reliable, the anti-loosening nut should be tight, and the rotating shaft should be coated with grease suitable for the local climate. 6. The connection between the air pipe and the components should make the expansion mouth of the copper pipe fit tightly with the joint, the expansion mouth should not have cracks, and the inside of the pipe should be clean. Article 2.2.7 The control cabinet and phase control box should be well sealed, and the heating device should be intact.
Section 3 Adjustment
Article 2.3.1 The adjustment and operation test of the air circuit breaker shall comply with the following provisions:
1. All adjustment data shall meet the product requirements; the valve system functions well, and the transmission mechanism and buffer should be flexible and free of jamming. 2. When inflating, the pressure should be increased step by step, and the sealing should be checked under each air pressure. Engineering Construction Standard Full-text Information System
W.bzsoso.cOmThe installation of 3 air circuit breakers should be carried out in weather without rain, snow, wind or sand; the disassembly inspection of components should be carried out indoors or in a shed. Article 22.4 The disassembly inspection of air circuit breaker components shall meet the following requirements: 1. The valve system including the starting valve, main valve, intermediate valve, control valve, exhaust valve and the transmission piston of the arc extinguishing moving contact:
1. The piston, sleeve, spring, expansion ring and other parts shall be intact, clean and free of rust, and the sliding working surface shall be coated with the lubricant specified in the product; 2. The rubber sealing gasket (ring) shall be free of distortion, deformation, cracks and burrs, and shall have good elasticity; the sealing gasket (ring) shall match the size of the flange surface or the sealing groove on the flange surface;
3. The exhaust hole of the valve, the air hole for controlling the delay and the receiving interface of the valve inlet and outlet pipes shall be unobstructed;
4. The metal flange surface of the valve shall be clean, flat and free of sand holes; 5. During assembly, the openings of the piston expansion ring shall be staggered; the piston movement shall be flexible and without obstruction; the spring shall maintain the original degree of compression. 2. The main and auxiliary arc-extinguishing contacts, parallel resistors, and voltage-equalizing capacitors of the arc-extinguishing chamber: 1. The contact parts should be tightened, the arc-extinguishing contact finger spring should be complete and accurately positioned, and the silver-plated layer on the contact finger should be intact;
2. The interior of the arc-extinguishing chamber should be cleaned, the assembly dimensions of the components and the stroke of the arc-extinguishing moving contact transmission piston should meet the product requirements, and the installation direction of the nozzle should be correct; 3. The measured parallel resistor and voltage-equalizing capacitor values should meet the product regulations. 3. Transmission components:
1. The shaft should be clean and coated with grease suitable for the local climate; Engineering Construction Standard Full Text Information System
W.bzsosO.cO Engineering Construction Standard Full Text Information System
2. The transmission mechanism system should be flexible and reliable. Article 2.2.5 The installation of the air circuit breaker base should meet the following requirements: 1. The base should be installed firmly, and the phase-to-phase distance error of the three-phase base should not be greater than 5mm.
2. The flange surface supporting the porcelain sleeve should be horizontal. For three-phase linked air circuit breakers, the flange surfaces of the porcelain sleeves between phases should be on the same horizontal plane. 3. There should be no debris inside the gas storage cylinder, and it should be blown clean with compressed air or cleaned with a vacuum cleaner.
Article 2.2.6 The assembly of air circuit breakers should meet the following requirements: 1. Porcelain parts, epoxy fiberglass air ducts, insulating pull rods, etc. should be kept clean and dry. 2. The installation position of all components should be correct and maintain their proper horizontal or vertical position; the tightness of the tightening insulator should be appropriate. 3. The rubber sealing gasket (ring) used to connect the porcelain sleeve flange should not be deformed, cracked or cracked due to aging, and should match the size of the sealing groove. The compression of the rubber sealing gasket (ring) should not exceed 1/3 of its thickness or be implemented according to the technical regulations of the product. 4. The external terminal of the arc extinguisher should be smooth, and the soft wire used for connection should not have broken strands. 5. The connection between the air circuit breaker and its transmission part should be reliable, the anti-loosening nut should be tight, and the rotating shaft should be coated with grease suitable for the local climate. 6. The connection between the air pipe and the components should make the expansion mouth of the copper pipe fit tightly with the joint, the expansion mouth should not have cracks, and the inside of the pipe should be clean. Article 2.2.7 The control cabinet and phase control box should be well sealed, and the heating device should be intact.
Section 3 Adjustment
Article 2.3.1 The adjustment and operation test of the air circuit breaker shall comply with the following provisions:
1. All adjustment data shall meet the product requirements; the valve system functions well, and the transmission mechanism and buffer should be flexible and free of jamming. 2. When inflating, the pressure should be increased step by step, and the sealing should be checked under each air pressure. Engineering Construction Standard Full-text Information System
W.bzsoso.cOmThe installation of 3 air circuit breakers should be carried out in weather without rain, snow, wind or sand; the disassembly inspection of components should be carried out indoors or in a shed. Article 22.4 The disassembly inspection of air circuit breaker components shall meet the following requirements: 1. The valve system including the starting valve, main valve, intermediate valve, control valve, exhaust valve and the transmission piston of the arc extinguishing moving contact:
1. The piston, sleeve, spring, expansion ring and other parts shall be intact, clean and free of rust, and the sliding working surface shall be coated with the lubricant specified in the product; 2. The rubber sealing gasket (ring) shall be free of distortion, deformation, cracks and burrs, and shall have good elasticity; the sealing gasket (ring) shall match the size of the flange surface or the sealing groove on the flange surface;
3. The exhaust hole of the valve, the air hole for controlling the delay and the receiving interface of the valve inlet and outlet pipes shall be unobstructed;
4. The metal flange surface of the valve shall be clean, flat and free of sand holes; 5. During assembly, the openings of the piston expansion ring shall be staggered; the piston movement shall be flexible and without obstruction; the spring shall maintain the original degree of compression. 2. The main and auxiliary arc-extinguishing contacts, parallel resistors, and voltage-equalizing capacitors of the arc-extinguishing chamber: 1. The contact parts should be tightened, the arc-extinguishing contact finger spring should be complete and accurately positioned, and the silver-plated layer on the contact finger should be intact;
2. The interior of the arc-extinguishing chamber should be cleaned, the assembly dimensions of the components and the stroke of the arc-extinguishing moving contact transmission piston should meet the product requirements, and the installation direction of the nozzle should be correct; 3. The measured parallel resistor and voltage-equalizing capacitor values should meet the product regulations. 3. Transmission components:
1. The shaft should be clean and coated with grease suitable for the local climate; Engineering Construction Standard Full Text Information System
W.bzsosO.cO Engineering Construction Standard Full Text Information System
2. The transmission mechanism system should be flexible and reliable. Article 2.2.5 The installation of the air circuit breaker base should meet the following requirements: 1. The base should be installed firmly, and the phase-to-phase distance error of the three-phase base should not be greater than 5mm.
2. The flange surface supporting the porcelain sleeve should be horizontal. For three-phase linked air circuit breakers, the flange surfaces of the porcelain sleeves between phases should be on the same horizontal plane. 3. There should be no debris inside the gas storage cylinder, and it should be blown clean with compressed air or cleaned with a vacuum cleaner.
Article 2.2.6 The assembly of air circuit breakers should meet the following requirements: 1. Porcelain parts, epoxy fiberglass air ducts, insulating pull rods, etc. should be kept clean and dry. 2. The installation position of all components should be correct and maintain their proper horizontal or vertical position; the tightness of the tightening insulator should be appropriate. 3. The rubber sealing gasket (ring) used to connect the porcelain sleeve flange should not be deformed, cracked or cracked due to aging, and should match the size of the sealing groove. The compression of the rubber sealing gasket (ring) should not exceed 1/3 of its thickness or be implemented according to the technical regulations of the product. 4. The external terminal of the arc extinguisher should be smooth, and the soft wire used for connection should not have broken strands. 5. The connection between the air circuit breaker and its transmission part should be reliable, the anti-loosening nut should be tight, and the rotating shaft should be coated with grease suitable for the local climate. 6. The connection between the air pipe and the components should make the expansion mouth of the copper pipe fit tightly with the joint, the expansion mouth should not have cracks, and the inside of the pipe should be clean. Article 2.2.7 The control cabinet and phase control box should be well sealed, and the heating device should be intact.
Section 3 Adjustment
Article 2.3.1 The adjustment and operation test of the air circuit breaker shall comply with the following provisions:
1. All adjustment data shall meet the product requirements; the valve system functions well, and the transmission mechanism and buffer should be flexible and free of jamming. 2. When inflating, the pressure should be increased step by step, and the sealing should be checked under each air pressure. Engineering Construction Standard Full-text Information System
W.bzsoso.cOm
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