GB 50172-1992 Specification for construction and acceptance of storage batteries for electrical installation projects
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
50172—92
Electrical Installation Engineering
Code for construction and acceptance of storage batteries
Erection works of electrical installationCode for construction and acceptance of storage batteries battery
1992—12—16
1993—07—01
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Electrical Installation Engineering
Battery Construction and Acceptance Specification
GB50172—92
Editor Department: Ministry of Energy of the People's Republic of ChinaApproval Department: Ministry of Construction of the People's Republic of ChinaEffective Date: July 1, 1993
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
About the Release of National Standards "Electrical Installation Engineering Rotating Motor Construction and Acceptance Specification" and Other
Five Items Notice of National Standards
Jianbiao [1992] No. 911
According to the requirements of the State Planning Commission's Letter of Bidding (1987) No. 78 and the Ministry of Construction's (88) Jianbiao No. 25, five standards, including the "Specifications for Construction and Acceptance of Rotating Electrical Machines for Electrical Installation Engineering" jointly formulated by the Ministry of Energy and relevant departments, have been reviewed by relevant departments and are now approved as mandatory national standards, namely the "Specifications for Construction and Acceptance of Rotating Electrical Machines for Electrical Installation Engineering" GB5017092, the "Specifications for Construction and Acceptance of Panels, Cabinets and Secondary Circuit Connections for Electrical Installation Engineering" GB50171-92, the "Specifications for Construction and Acceptance of Storage Batteries for Electrical Installation Engineering" GB50172-92, the "Specifications for Construction and Acceptance of Cable Lines for Electrical Installation Engineering" GB50168-92 and the "Specifications for Construction and Acceptance of Grounding Devices for Electrical Installation Engineering" GB50169-92, for implementation on July 1, 1993. The third chapter of the original "Electrical Installation Engineering Construction and Acceptance Specifications" on rotating machines, the fourth chapter on panels, cabinets and secondary circuit connections, the fifth chapter on batteries, the eleventh chapter on cable lines and the fifteenth chapter on grounding devices are hereby abolished. This standard is managed by the Ministry of Energy, and the specific interpretation and other work is undertaken by 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 16, 1992
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Revision Notes
This standard is edited by the former Ministry of Water Resources and Electric Power in accordance with the requirements of the State Planning Commission's Bidding Letter (1987) No. 78 and the Ministry of Construction's (88) Jianbiaozi No. 25. It is specifically compiled by the Ministry of Energy's Electric Power Construction Research Institute in conjunction with relevant units. During the revision process, the drafting team 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 five chapters and four appendices. The main contents of this revision are: 1. All relevant contents about "fixed open lead-acid battery pack" in the fifth chapter "Battery" of the original "Electrical Installation Engineering Construction and Acceptance Code" (GBJ232-82) have been deleted. Due to its inherent disadvantages, this type of battery is no longer used in domestic engineering construction, and the manufacturer no longer produces it, and it is an obsolete product. 2. The chapter "Busbar and Stand" in the original specification has been cancelled. Since the main content of this chapter is applicable to the installation needs of fixed open lead-acid batteries, this chapter has been cancelled, and the chapter arrangement has been changed. The relevant provisions of this chapter have been included in the "Battery Pack Installation" chapter of the current specification;
3. The relevant contents of the installation and acceptance of fixed explosion-proof and fixed sealed lead-acid battery packs have been supplemented;
4. The chapter "Installation of Cadmium Nickel Alkaline Battery Packs" has been added, and the relevant contents about cadmium nickel alkaline batteries have been supplemented in other relevant chapters and articles of the specification. This is the first time that the construction and acceptance of cadmium nickel alkaline storage battery packs are included in the national standard specifications, filling the gap of no rules to follow in the construction and handover acceptance of cadmium nickel alkaline storage batteries in electrical installation projects. www.bzxz.net
5. Supplementary amendments to other relevant provisions.
In the process of implementing this specification, if you find any incomplete parts, please send your opinions and relevant materials to the Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
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 1990
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1 General
Chapter 2 Lead-acid Battery Pack
Section 1
Section 2
Section 3
Chapter 3
Section 1
Section 2
Section 3
Chapter 4
Chapter 5
Appendix 2
Appendix 3
Appendix 4
Liquid Preparation and Injection
Cadmium Nickel Alkaline Battery Pack||tt ||Liquid preparation and filling ·
Terminal battery switch
Project handover and acceptance
Standard materials and electrolytes for lead-acid batteries Technical conditions for potassium hydroxide
Standard electrolytes for alkaline batteries
+...+....
Terminal terms used in this specification
Additional explanation
Engineering construction standards full text information system
Engineering construction standards full text information system
Chapter 1 General
Article 1.0.1 This specification is formulated to ensure the quality of engineering installation of battery groups, promote the improvement of engineering construction technology level, and ensure the safe operation of battery groups. Article 1.0.2 This specification applies to the construction and acceptance of fixed lead-acid battery groups with a voltage of 24V and above, a capacity of 30A·h and above, and cadmium nickel alkaline battery groups with a capacity of 10A·h and above. Article 1.0.3 The installation of battery groups should be carried out according to the approved design. Article 1.0.4 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 1.0.5 During transportation and storage, the battery shall be handled with care and shall not be subjected to strong impact and vibration, and shall not be inverted, pressed, or exposed to the sun and rain. Article 1.0.6 After the equipment arrives at the site, it shall be inspected within the specified period and shall meet the following requirements:
1. The packaging and sealing shall be good.
2. After unpacking and checking and counting, the model and specifications shall meet the design requirements; the accessories shall be complete; and the components shall not be damaged.
3. The technical documents of the product shall be complete.
4. The appearance inspection shall be qualified according to the requirements of this specification. Article 1.0.7 After the battery arrives at the site, it shall be installed and charged within the effective storage period specified by the product. If it is not installed immediately, its storage shall meet the following requirements: 1. Acid and alkaline batteries shall not be stored in the same room. 2. The battery shall not be inverted and shall not overlap when unpacked. 3. The battery should be stored in a clean, dry, well-ventilated room without direct sunlight; short circuit and moisture are strictly prohibited during storage, and dust should be removed regularly to ensure cleanliness. 4. The storage room temperature of acid batteries should be 5-40℃; the storage temperature of alkaline batteries should not be higher than 35℃. It is advisable to store in a discharged state, screw on a sealed gas, clean it, and apply anti-corrosion grease on the pole.
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 technical documents of the product. Article 1.0.9 The construction of the battery room shall meet the following requirements: The construction quality of the buildings related to the installation of batteries shall comply with the relevant provisions of the current national construction and acceptance specifications. 2. Before the installation of the battery, the construction project and its auxiliary facilities shall be completed in accordance with the design requirements and passed the acceptance.
Article 1.0.10
The battery room lighting fixtures should be installed in a location that is convenient for maintenance; the wires or cables used should have anti-corrosion properties or anti-corrosion measures should be taken. Article 1.0.Article 11 In addition to the implementation of the provisions of this specification, the construction and acceptance of battery packs shall also comply with the provisions of the relevant national standards and specifications in force. Engineering 2 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2
Lead-acid Battery Pack
Section 1 Installation
Article 2.1.1 Before installing the lead-acid porcelain battery, an appearance inspection shall be carried out in accordance with the following requirements:
1. The battery tank shall be free of cracks and damage, and the tank cover shall be well sealed. 2. The positive and negative terminal posts of the battery must have the correct polarity and shall not be deformed; the acid-proof plug, catalytic plug and other parts shall be complete and undamaged; the ventilation performance of the air filter cap shall be good. 3. For transparent battery tanks, it shall be checked that the plates are not seriously damp and deformed; the parts in the tank shall be complete and undamaged.
4. The connecting strips, bolts and nuts shall be complete. 5. Thermometers and densitometers shall be intact. Article 2.1.2 When cleaning the dirt on the surface of the battery tank, the tank made of synthetic resin should be wiped with aliphatic hydrocarbons and alcohol, and should not be scrubbed with aromatic hydrocarbons, kerosene, gasoline and other organic solvents.
Article 2.1.3 The installation of the battery pack shall meet the following requirements: 1. The platform, base frame and spacing of the battery shall meet the design requirements. 2. The battery installation should be stable and the spacing should be uniform; the battery tanks in the same row and column should be of the same height and arranged neatly.
3. The connection of the connecting strips and taps should be correct, the joint connection part should be coated with electrical composite grease, and the bolts should be tightened.
4. When there is a seismic requirement, the seismic facilities should comply with relevant regulations and be firm and reliable. 5. Thermometers, densitometers, and liquid level lines should be placed on the side that is easy to check. Article 2.1.4 The laying of the lead-out cable of the battery shall comply with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Cable Lines of Electrical Installation Engineering" and the following requirements:
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
1. Plastic sheathed cables should be used. When bare armored cables are used, the armor should be stripped off the indoor part.
2. The lead-out wires of the cables shall be marked with plastic ribbons to indicate the polarity of the positive and negative poles. The positive pole is ochre and the negative pole is blue.
3. The holes where the cables pass through the battery room and the mouth of the protective tube shall be sealed with acid-resistant materials.
Article 2.1.5 The installation of bare hard busbars in the battery room shall comply with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Busbar Installations of Electrical Installation Engineering" and anti-corrosion measures shall be taken.
Article 2.1.6 Each battery shall be marked with a number on the outer surface of its base or tank with acid-resistant material.
Section 2 Preparation and Injection
Article 2.2.1 The electrolyte shall be prepared with sulfuric acid that complies with the current national standard "Sulfuric Acid for Batteries" and shall have the manufacturer's certificate of conformity. When other grades of sulfuric acid are used, its physical and chemical properties shall comply with the provisions of Appendix 1 of this specification. The water used for batteries shall comply with the provisions of the current national standard "Water for Lead-acid Batteries". Newly prepared dilute acid shall only be tested when there is doubt. Article 2.2.2 When preparing or pouring electrolyte, clean, acid-resistant and high-temperature-resistant utensils must be used. Concentrated sulfuric acid should be poured slowly into distilled water. It is strictly forbidden to pour distilled water into concentrated sulfuric acid, and corresponding labor protection supplies and tools should be used. The density of the newly prepared electrolyte must comply with the provisions of the product technical conditions. Article 2.2.3 The temperature of the electrolyte injected into the battery should not be higher than 30℃. When the room temperature is higher than 30℃, it shall not be higher than room temperature. The height of the injection liquid level should be close to the upper liquid level line. The whole group of batteries should be injected at one time. Section 3 Charging and Discharging
Article 2.3.1 After the electrolyte is injected into the battery, it should be left to stand for 35 hours; when the liquid temperature cools down to below 30℃ and the room temperature is higher than 30℃, it can be charged only when the liquid temperature cools down to room temperature. However, the full text information system of engineering construction standards
The full text information system of engineering construction standards
The placement time from the injection of electrolyte into the first battery to charging. It should comply with the provisions of the product manual; when there is no provision in the product manual, it should not exceed 8h. The acid-proof plug, catalytic plug and liquid hole plug of the battery should be reinstalled immediately after the injection is completed.
Article 2.3.2 The initial charging and first discharge of the battery should be carried out in accordance with the provisions of the product technical conditions, and shall not be overcharged or over-discharged. And it should meet the following requirements: 1. Before the initial charging, the connection of the battery group and its connecting strips should be checked. 2. During the initial charging, the power supply should be reliable and should not be interrupted at will. 3. During the charging process, the electrolyte temperature should not be higher than 45℃. Article 2.3.3 The initial charging of the battery should meet the following requirements: 1. When charging by constant current charging method, the maximum current shall not exceed the maximum allowable current value specified by the manufacturer.
2. When charging by constant voltage charging method, the initial charging current shall not exceed the maximum allowable current value: the terminal voltage of the single cell shall not exceed 2.4V. 3. For batteries equipped with catalytic plugs, when the charging current exceeds the maximum allowable current value, the catalytic plugs should be removed and replaced with acid-proof plugs; during the charging process, the temperature rise of the catalytic plugs should be normal.
Article 2.3.4 Open flames are strictly prohibited when charging the battery. Article 2.3.5 The initial charging of the battery should meet the following requirements: 1. The charging capacity should meet the requirements of the product technical conditions. 2. For constant current charging method, the battery voltage and electrolyte density should remain stable for more than 3 hours, and the electrolyte should produce a large number of bubbles; for constant voltage charging method, the charging current should remain unchanged for more than 10 hours, and the electrolyte density should remain unchanged for more than 3 hours, and meet the values specified in the product technical conditions.
Article 2.3.6
After the initial charge, the density and liquid level of the electrolyte need to be adjusted to the specified value, and the battery should be charged for another 0.5 hours to mix the electrolyte evenly. Article 2.3.7 The battery pack should meet the following requirements at the end of the first discharge: 1. The final voltage and density of the battery should meet the requirements of the product technical conditions. 2. The voltage of the non-standard battery shall not be lower than 2% of the average voltage of the single battery in the whole battery pack.
3. The number of batteries with non-standard voltage shall not exceed 5% of the total number of batteries in the group.
Fourth, the discharge capacity at 25℃ should reach more than 85% of its rated capacity. When the temperature is not 25℃ but in the range of 10～40℃, its capacity can be converted as follows:
C 25 =1+ 0. 008(t-25)
Wherein, t——average temperature of the electrolyte in the last 2h of 10h rate discharge (℃);
C—actually measured capacity when the liquid temperature is t℃ (A·h); C25—capacity converted to standard temperature (25℃) (A·h); 0.008——capacity temperature coefficient of 10h rate discharge. Article 2.3.8 After the first discharge is completed, charging should be carried out according to the product technical requirements, and the interval time should not exceed 10h.
Article 2.3.9 Within 5 charge and discharge cycles, when the temperature is 25℃, the discharge capacity of the battery pack should not be less than 95% of the 10h rate discharge capacity. Article 2.3.10 After charging and discharging, the internal condition of the battery in the transparent tank should be checked. The plates should not be severely bent, deformed, or the active material should not be severely peeled off. Article 2.3.11 During the entire charging and discharging period, the voltage, current, density and temperature of the electrolyte of each battery should be recorded at the specified time. After charging and discharging, the charging and discharging characteristic curve of the whole group should be drawn.
Article 2.3.12 After the battery is charged, it should be used and maintained according to the technical requirements of the product before it is handed over for operation.
Engineering 6 Construction Standard Full Text Information System3. The installation of battery packs shall meet the following requirements: 1. The platform, base frame and spacing of the battery shall meet the design requirements. 2. The battery installation shall be stable and the spacing shall be uniform; the battery slots in the same row and column shall be of the same height and arranged neatly.
3. The connection of the connecting strips and taps shall be correct, the joint connection part shall be coated with electrical composite grease, and the bolts shall be tightened.
4. When there is a seismic requirement, its seismic facilities shall comply with relevant regulations and be firm and reliable. 5. Thermometers, densitometers and liquid level lines shall be placed on the side that is easy to check. Article 2.1.4 The laying of the lead-out cable of the battery shall not only comply with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Cable Lines of Electrical Installation Engineering", but also meet the following requirements:
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
1. Plastic sheathed cables should be used. When bare armored cables are used, the armor should be stripped off the indoor part.
2. The lead-out wires of the cables shall be marked with plastic ribbons to indicate the polarity of the positive and negative electrodes. The positive electrode shall be ochre and the negative electrode shall be blue.
3. The holes where the cables pass through the battery room and the mouth of the protective tube shall be sealed with acid-resistant materials.
Article 2.1.5 In addition to complying with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Busbar Installations in Electrical Installation Engineering", anti-corrosion measures shall be taken for the installation of bare hard busbars in the battery room.
Article 2.1.6 Each battery shall be marked with a number on the outer surface of its pedestal or tank with acid-resistant materials.
Section 2 Liquid Preparation and Liquid Injection
Article 2.2.1 The electrolyte shall be prepared with sulfuric acid that complies with the provisions of the current national standard "Sulfuric Acid for Batteries" and shall have a certificate of conformity from the manufacturer. When other grades of sulfuric acid are used, their physical and chemical properties shall comply with the provisions of Appendix 1 of this specification. The water used for batteries should comply with the provisions of the current national standard "Water for Lead-acid Batteries". Newly prepared dilute acid should only be tested when there is doubt. Article 2.2.2 When preparing or filling the electrolyte, clean, acid-resistant and high-temperature-resistant utensils must be used. Concentrated sulfuric acid should be poured slowly into distilled water. It is strictly forbidden to pour distilled water into concentrated sulfuric acid, and corresponding labor protection supplies and tools should be used. The density of the newly prepared electrolyte must meet the requirements of the product technical conditions. Article 2.2.3 The temperature of the electrolyte injected into the battery should not be higher than 30°C. When the room temperature is higher than 30°C, it shall not be higher than the room temperature. The height of the injected liquid level should be close to the upper liquid level line. The entire group of batteries should be injected at one time. Section 3 Charging and Discharging
Article 2.3.1 After the electrolyte is injected into the battery, it should be left to stand for 35 hours; when the liquid temperature cools down to below 30°C, and the room temperature is higher than 30°C, it can be charged only when the liquid temperature cools down to room temperature. However, the full text information system of engineering construction standards
The full text information system of engineering construction standards
The storage time from the injection of electrolyte into the first battery to charging. It should comply with the provisions of the product manual; when there is no provision in the product manual, it should not exceed 8h. The acid-proof plug, catalytic plug and liquid hole plug of the battery should be reinstalled immediately after the injection is completed.
Article 2.3.2 The initial charge and first discharge of the battery should be carried out in accordance with the provisions of the product technical conditions, and overcharge and over-discharge are not allowed. And it should meet the following requirements: 1. Before the initial charge, the connection of the battery pack and its connecting strips should be checked. 2. During the initial charge, the power supply should be reliable and should not be interrupted at will. 3. During the charging process, the electrolyte temperature should not be higher than 45℃. Article 2.3.3 The initial charging of the battery should meet the following requirements: 1. When charging by constant current charging method, the maximum current shall not exceed the maximum allowable current value specified by the manufacturer.
2. When charging by constant voltage charging method, the initial charging current shall not exceed the maximum allowable current value: the terminal voltage of the single cell shall not exceed 2.4V. 3. For batteries equipped with catalytic plugs, when the charging current exceeds the maximum allowable current value, the catalytic plugs should be removed and replaced with acid-proof plugs; during the charging process, the temperature rise of the catalytic plugs should be normal.
Article 2.3.4 Open flames are strictly prohibited when charging batteries. Article 2.3.5 The following requirements shall be met at the end of the initial charging of the battery: 1. The charging capacity shall meet the requirements of the product technical conditions. 2. For constant current charging method, the battery voltage and electrolyte density shall remain stable for more than 3 hours, and the electrolyte shall produce a large number of bubbles; for constant voltage charging method, the charging current shall remain unchanged for more than 10 hours, the electrolyte density shall remain unchanged for more than 3 hours, and meet the values specified in the product technical conditions.
Article 2.3.6
After the initial charge, the density and liquid level of the electrolyte need to be adjusted to the specified value, and the charge should be carried out for another 0.5h to mix the electrolyte evenly. Article 2.3.7 The battery pack shall meet the following requirements at the end of the first discharge: 1. The final voltage and density of the battery shall comply with the provisions of the product technical conditions. 2. The voltage of non-standard batteries shall not be lower than 2% of the average voltage of the single cells in the entire battery pack.
3. The number of batteries with non-standard voltages shall not exceed 5% of the total number of batteries in the group.
4. The discharge capacity at a temperature of 25°C shall reach more than 85% of its rated capacity. When the temperature is not 25℃ but in the range of 10～40℃, its capacity can be converted as follows:
C 25 =1+ 0. 008(t-25)
wherein t is the average temperature of the electrolyte in the last 2 hours of the 10h rate discharge process (℃);
C is the actual measured capacity when the liquid temperature is t℃ (A·h); C25 is the capacity converted to the standard temperature (25℃) (A·h); 0.008 is the capacity temperature coefficient of 10h rate discharge. Article 2.3.8 After the first discharge is completed, it should be charged according to the product technical requirements, and the interval time should not exceed 10h.
Article 2.3.9 During 5 charge and discharge cycles, when the temperature is 25℃, the discharge capacity of the battery pack should not be less than 95% of the 10h rate discharge capacity. Article 2.3.10 After charging and discharging, the internal condition of the battery in the transparent tank should be checked. The plates should not be severely bent, deformed, or the active material should not be severely peeled off. Article 2.3.11 During the entire charging and discharging period, the voltage, current, density and temperature of the electrolyte of each battery should be recorded at the specified time. After charging and discharging, the charging and discharging characteristic curve of the whole group should be drawn.
Article 2.3.12 After the battery is charged, it should be used and maintained according to the technical requirements of the product before it is handed over for operation.
Engineering 6 Construction Standard Full Text Information System3. The installation of battery packs shall meet the following requirements: 1. The platform, base frame and spacing of the battery shall meet the design requirements. 2. The battery installation shall be stable and the spacing shall be uniform; the battery slots in the same row and column shall be of the same height and arranged neatly.
3. The connection of the connecting strips and taps shall be correct, the joint connection part shall be coated with electrical composite grease, and the bolts shall be tightened.
4. When there is a seismic requirement, its seismic facilities shall comply with relevant regulations and be firm and reliable. 5. Thermometers, densitometers and liquid level lines shall be placed on the side that is easy to check. Article 2.1.4 The laying of the lead-out cable of the battery shall not only comply with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Cable Lines of Electrical Installation Engineering", but also meet the following requirements:
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
1. Plastic sheathed cables should be used. When bare armored cables are used, the armor should be stripped off the indoor part.
2. The lead-out wires of the cables shall be marked with plastic ribbons to indicate the polarity of the positive and negative electrodes. The positive electrode shall be ochre and the negative electrode shall be blue.
3. The holes where the cables pass through the battery room and the mouth of the protective tube shall be sealed with acid-resistant materials.
Article 2.1.5 In addition to complying with the relevant provisions of the current national standard "Construction and Acceptance Specifications for Busbar Installations in Electrical Installation Engineering", anti-corrosion measures shall be taken for the installation of bare hard busbars in the battery room.
Article 2.1.6 Each battery shall be marked with a number on the outer surface of its pedestal or tank with acid-resistant materials.
Section 2 Liquid Preparation and Liquid Injection
Article 2.2.1 The electrolyte shall be prepared with sulfuric acid that complies with the provisions of the current national standard "Sulfuric Acid for Batteries" and shall have a certificate of conformity from the manufacturer. When other grades of sulfuric acid are used, their physical and chemical properties shall comply with the provisions of Appendix 1 of this specification. The water used for batteries should comply with the provisions of the current national standard "Water for Lead-acid Batteries". Newly prepared dilute acid should only be tested when there is doubt. Article 2.2.2 When preparing or filling the electrolyte, clean, acid-resistant and high-temperature-resistant utensils must be used. Concentrated sulfuric acid should be poured slowly into distilled water. It is strictly forbidden to pour distilled water into concentrated sulfuric acid, and corresponding labor protection supplies and tools should be used. The density of the newly prepared electrolyte must meet the requirements of the product technical conditions. Article 2.2.3 The temperature of the electrolyte injected into the battery should not be higher than 30°C. When the room temperature is higher than 30°C, it shall not be higher than the room temperature. The height of the injected liquid level should be close to the upper liquid level line. The entire group of batteries should be injected at one time. Section 3 Charging and Discharging
Article 2.3.1 After the electrolyte is injected into the battery, it should be left to stand for 35 hours; when the liquid temperature cools down to below 30°C, and the room temperature is higher than 30°C, it can be charged only when the liquid temperature cools down to room temperature. However, the full text information system of engineering construction standards
The full text information system of engineering construction standards
The storage time from the injection of electrolyte into the first battery to charging. It should comply with the provisions of the product manual; when there is no provision in the product manual, it should not exceed 8h. The acid-proof plug, catalytic plug and liquid hole plug of the battery should be reinstalled immediately after the injection is completed.
Article 2.3.2 The initial charge and first discharge of the battery should be carried out in accordance with the provisions of the product technical conditions, and overcharge and over-discharge are not allowed. And it should meet the following requirements: 1. Before the initial charge, the connection of the battery pack and its connecting strips should be checked. 2. During the initial charge, the power supply should be reliable and should not be interrupted at will. 3. During the charging process, the electrolyte temperature should not be higher than 45℃. Article 2.3.3 The initial charging of the battery should meet the following requirements: 1. When charging by constant current charging method, the maximum current shall not exceed the maximum allowable current value specified by the manufacturer.
2. When charging by constant voltage charging method, the initial charging current shall not exceed the maximum allowable current value: the terminal voltage of the single cell shall not exceed 2.4V. 3. For batteries equipped with catalytic plugs, when the charging current exceeds the maximum allowable current value, the catalytic plugs should be removed and replaced with acid-proof plugs; during the charging process, the temperature rise of the catalytic plugs should be normal.
Article 2.3.4 Open flames are strictly prohibited when charging batteries. Article 2.3.5 The following requirements shall be met at the end of the initial charging of the battery: 1. The charging capacity shall meet the requirements of the product technical conditions. 2. For constant current charging method, the battery voltage and electrolyte density shall remain stable for more than 3 hours, and the electrolyte shall produce a large number of bubbles; for constant voltage charging method, the charging current shall remain unchanged for more than 10 hours, the electrolyte density shall remain unchanged for more than 3 hours, and meet the values specified in the product technical conditions.
Article 2.3.6
After the initial charge, the density and liquid level of the electrolyte need to be adjusted to the specified value, and the charge should be carried out for another 0.5h to mix the electrolyte evenly. Article 2.3.7 The battery pack shall meet the following requirements at the end of the first discharge: 1. The final voltage and density of the battery shall comply with the provisions of the product technical conditions. 2. The voltage of non-standard batteries shall not be lower than 2% of the average voltage of the single cells in the entire battery pack.
3. The number of batteries with non-standard voltages shall not exceed 5% of the total number of batteries in the group.
4. The discharge capacity at a temperature of 25°C shall reach more than 85% of its rated capacity. When the temperature is not 25℃ but in the range of 10～40℃, its capacity can be converted as follows:
C 25 =1+ 0. 008(t-25)
wherein t is the average temperature of the electrolyte in the last 2 hours of the 10h rate discharge process (℃);
C is the actual measured capacity when the liquid temperature is t℃ (A·h); C25 is the capacity converted to the standard temperature (25℃) (A·h); 0.008 is the capacity temperature coefficient of 10h rate discharge. Article 2.3.8 After the first discharge is completed, it should be charged according to the product technical requirements, and the interval time should not exceed 10h.
Article 2.3.9 During 5 charge and discharge cycles, when the temperature is 25℃, the discharge capacity of the battery pack should not be less than 95% of the 10h rate discharge capacity. Article 2.3.10 After charging and discharging, the internal condition of the battery in the transparent tank should be checked. The plates should not be severely bent, deformed, or the active material should not be severely peeled off. Article 2.3.11 During the entire charging and discharging period, the voltage, current, density and temperature of the electrolyte of each battery should be recorded at the specified time. After charging and discharging, the charging and discharging characteristic curve of the whole group should be drawn.
Article 2.3.12 After the battery is charged, it should be used and maintained according to the technical requirements of the product before it is handed over for operation.
Engineering 6 Construction Standard Full Text Information System1. After the electrolyte is injected into the battery, it should be left to stand for 35 hours; when the liquid temperature cools down to below 30℃ and the room temperature is higher than 30℃, charging can be carried out only when the liquid temperature cools down to room temperature. However, the full text information system of engineering construction standards
full text information system of engineering construction standards
The storage time from the injection of electrolyte into the first battery to charging. It should comply with the provisions of the product manual; when there is no provision in the product manual, it should not exceed 8 hours. The acid-proof plug, catalytic plug and liquid hole plug of the battery should be reinstalled immediately after the injection is completed.
Article 2.3.2 The initial charge and first discharge of the battery should be carried out in accordance with the provisions of the product technical conditions, and overcharge and over-discharge shall not be allowed. And it shall meet the following requirements: 1. Before the initial charge, the connection of the battery pack and its connecting strips shall be checked. 2. During the initial charge, the power supply should be reliable and shall not be interrupted at will. 3. During the charging process, the electrolyte temperature should not be higher than 45℃. Article 2.3.3 The initial charging of the battery shall meet the following requirements: 1. When charging by constant current charging method, its maximum current shall not exceed the maximum allowable current value specified by the manufacturer.
2. When charging by constant voltage charging method, its initial charging current shall not exceed the maximum allowable current value: the terminal voltage of the single cell shall not exceed 2.4V. 3. For batteries equipped with catalytic plugs, when the charging current exceeds the maximum allowable current value, the catalytic plugs shall be removed and replaced with acid-proof plugs; during the charging process, the temperature rise of the catalytic plugs shall not be abnormal.
Article 2.3.4 When charging the battery, open flames are strictly prohibited. Article 2.3.5 The initial charging of the battery shall meet the following requirements: 1. The charging capacity shall meet the requirements of the product technical conditions. 2. For the constant current charging method, the battery voltage and electrolyte density shall remain stable for more than 3 hours, and the electrolyte shall produce a large number of bubbles; for the constant voltage charging method, the charging current shall remain unchanged for more than 10 hours, and the electrolyte density shall remain unchanged for more than 3 hours, and meet the values specified in the product technical conditions.
Article 2.3.6
After the initial charge, the density and liquid level of the electrolyte need to be adjusted to the specified value, and the charge should be carried out for another 0.5h to mix the electrolyte evenly. Article 2.3.7 The battery pack shall meet the following requirements at the end of the first discharge: 1. The final voltage and density of the battery shall comply with the provisions of the product technical conditions. 2. The voltage of non-standard batteries shall not be lower than 2% of the average voltage of the single cells in the entire battery pack.
3. The number of batteries with non-standard voltages shall not exceed 5% of the total number of batteries in the group.
4. The discharge capacity at a temperature of 25°C shall reach more than 85% of its rated capacity. When the temperature is not 25℃ but in the range of 10～40℃, its capacity can be converted as follows:
C 25 =1+ 0. 008(t-25)
wherein t is the average temperature of the electrolyte in the last 2 hours of the 10h rate discharge process (℃);
C is the actual measured capacity when the liquid temperature is t℃ (A·h); C25 is the capacity converted to the standard temperature (25℃) (A·h); 0.008 is the capacity temperature coefficient of 10h rate discharge. Article 2.3.8 After the first discharge is completed, it should be charged according to the product technical requirements, and the interval time should not exceed 10h.
Article 2.3.9 During 5 charge and discharge cycles, when the temperature is 25℃, the discharge capacity of the battery pack should not be less than 95% of the 10h rate discharge capacity. Article 2.3.10 After charging and discharging, the internal condition of the battery in the transparent tank should be checked. The plates should not be severely bent, deformed, or the active material should not be severely peeled off. Article 2.3.11 During the entire charging and discharging period, the voltage, current, density and temperature of the electrolyte of each battery should be recorded at the specified time. After charging and discharging, the charging and discharging characteristic curve of the whole group should be drawn.
Article 2.3.12 After the battery is charged, it should be used and maintained according to the technical requirements of the product before it is handed over for operation.
Engineering 6 Construction Standard Full Text Information System1. After the electrolyte is injected into the battery, it should be left to stand for 35 hours; when the liquid temperature cools down to below 30℃ and the room temperature is higher than 30℃, charging can be carried out only when the liquid temperature cools down to room temperature. However, the full text information system of engineering construction standards
full text information system of engineering construction standards
The storage time from the injection of electrolyte into the first battery to charging. It should comply with the provisions of the product manual; when there is no provision in the product manual, it should not exceed 8 hours. The acid-proof plug, catalytic plug and liquid hole plug of the battery should be reinstalled immediately after the injection is completed.
Article 2.3.2 The initial charge and first discharge of the battery should be carried out in accordance with the provisions of the product technical conditions, and overcharge and over-discharge shall not be allowed. And it shall meet the following requirements: 1. Before the initial charge, the connection of the battery pack and its connecting strips shall be checked. 2. During the initial charge, the power supply should be reliable and shall not be interrupted at will. 3. During the charging process, the electrolyte temperature should not be higher than 45℃. Article 2.3.3 The initial charging of the battery shall meet the following requirements: 1. When charging by constant current charging method, its maximum current shall not exceed the maximum allowable current value specified by the manufacturer.
2. When charging by constant voltage charging method, its initial charging current shall not exceed the maximum allowable current value: the terminal voltage of the single cell shall not exceed 2.4V. 3. For batteries equipped with catalytic plugs, when the charging current exceeds the maximum allowable current value, the catalytic plugs shall be removed and replaced with acid-proof plugs; during the charging process, the temperature rise of the catalytic plugs shall not be abnormal.
Article 2.3.4 When charging the battery, open flames are strictly prohibited. Article 2.3.5 The initial charging of the battery shall meet the following requirements: 1. The charging capacity shall meet the requirements of the product technical conditions. 2. For the constant current charging method, the battery voltage and electrolyte density shall remain stable for more than 3 hours, and the electrolyte shall produce a large number of bubbles; for the constant voltage charging method, the charging current shall remain unchanged for more than 10 hours, and the electrolyte density shall remain unchanged for more than 3 hours, and meet the values specified in the product technical conditions.
Article 2.3.6
After the initial charge, the density and liquid level of the electrolyte need to be adjusted to the specified value, and the charge should be carried out for another 0.5h to mix the electrolyte evenly. Article 2.3.7 The battery pack shall meet the following requirements at the end of the first discharge: 1. The final voltage and density of the battery shall comply with the provisions of the product technical conditions. 2. The voltage of non-standard batteries shall not be lower than 2% of the average voltage of the single cells in the entire battery pack.
3. The number of batteries with non-standard voltages shall not exceed 5% of the total number of batteries in the group.
4. The discharge capacity at a temperature of 25°C shall reach more than 85% of its rated capacity. When the temperature is not 25℃ but in the range of 10～40℃, its capacity can be converted as follows:
C 25 =1+ 0. 008(t-25)
wherein t is the average temperature of the electrolyte in the last 2 hours of the 10h rate discharge process (℃);
C is the actual measured capacity when the liquid temperature is t℃ (A·h); C25 is the capacity converted to the standard temperature (25℃) (A·h); 0.008 is the capacity temperature coefficient of 10h rate discharge. Article 2.3.8 After the first discharge is completed, it should be charged according to the product technical requirements, and the interval time should not exceed 10h.
Article 2.3.9 During 5 charge and discharge cycles, when the temperature is 25℃, the discharge capacity of the battery pack should not be less than 95% of the 10h rate discharge capacity. Article 2.3.10 After charging and discharging, the internal condition of the battery in the transparent tank should be checked. The plates should not be severely bent, deformed, or the active material should not be severely peeled off. Article 2.3.11 During the entire charging and discharging period, the voltage, current, density and temperature of the electrolyte of each battery should be recorded at the specified time. After charging and discharging, the charging and discharging characteristic curve of the whole group should be drawn.
Article 2.3.12 After the battery is charged, it should be used and maintained according to the technical requirements of the product before it is handed over for operation.
Engineering 6 Construction Standard Full Text Information System
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