Some standard content:
JB/T8451—1996
This standard is formulated based on the Japanese Industrial Standard JIS C8707-1992 "Cathode Absorption Sealed Fixed Lead-acid Battery" standard. It is equivalent to this standard in terms of technical content. The differences between the technical content and JIS C8707-1992 are noted in the adoption instructions in accordance with 4.5.5 of GB/T1.1-1993.
This standard is proposed and managed by the National Lead-acid Battery Standardization Technical Committee. This standard is drafted by the Shenyang Battery Research Institute. The main drafter of this standard is He Cilong.
This standard was first issued in September 1996.
This standard is entrusted to the National Lead-acid Battery Standardization Technical Committee for interpretation. 70
1 Scope
Machinery Industry Standard of the People's Republic of China
Stationary Valve-Controlled Sealed Lead-Acid Battery Door JB/T 8451—1996
This standard specifies the product classification, technical requirements and test methods of stationary valve-controlled sealed lead-acid batteries (hereinafter referred to as batteries), which are applicable to batteries used in telecommunications, electrical equipment, emergency power supplies, etc. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are valid, all standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB 5781—1986
JB3076—1991
JB/T 2599--1993
JB/T7630—1994
3 Symbols
3.1 Rated capacity
Hexagonal head bolt-full thread-C grade
Lead-acid battery tank
Method for compiling lead-acid battery product model
Ultra-fine glass fiber separator for lead-acid batteries
The 10-hour rate rated capacity is expressed by C1o (Ah), and the 1-hour rate rated capacity is expressed by C (Ah). 3.210-hour rate discharge current and 1-hour rate discharge current The 10-hour rate discharge current value is C1/10, expressed by Iso (A). The 1-hour rate discharge current value is C1/1, expressed by I, (A) Indicates. 4 Product classification
4.1 Product model and size
4.1.1 Product model and size (see Table 1). 4.1.2 Product model shall be in accordance with JB/T2599 standard, with the following meanings: For example:
3--GFM-100
Rated capacity
Sealed
Valve-controlled
Fixed
Number of single cells in series
Instructions for use:
1 The standard name is different from the Japanese standard, according to the provisions of JB/T2599. Approved by the Ministry of Machinery Industry on September 3, 1996
Implemented on January 1, 1997
6 — GFM — 30 |
GFM—1000
GFM—1500
GFM—2000
GFM—3000
Note: The limit deviation of the external dimensions is 3mm.
Measurement position of external dimensions (see Figures 1 to 7). 4.2
4.3 External dimensions Users can also agree with the manufacturer1.5 Technical requirements
5.1 Battery structure
5.1.1 General structure
JB/T8451—1996
Table 1 Product model and size
Rated capacity
1 hour rate
10 hour rate!
External dimensions
The battery consists of positive plates, negative plates, separators, battery tanks, battery covers, electrolytes, terminals, exhaust valves, etc. 5.1.2 Battery tank
The battery tank should comply with the provisions of JB3076 standard. 5.1.3 Battery separators
Battery separators shall comply with JB/T7630 or other separator standards. 5.1.4 Terminals
Battery terminals shall be connected with bolts and nuts. The bolts used shall comply with GB5781 standard 2. Instructions for use:
Japanese standards do not have the provision of "users can also agree with the manufacturer". 2]
Japanese Industrial Standards stipulate that terminal connections use M6 and M10 bolts. This standard does not make a rigid provision based on actual use. Battery
Appearance drawing
(reference)
5.2 Battery dimensions
JB/T8451—1996
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The battery dimensions shall comply with Table 1 or the manufacturer's regulations. 5.3 Appearance
The appearance of the battery should not have cracks, stains or obvious deformation. 5.4 Capacity
The battery should be tested according to 8.3, and the 10-hour rate capacity and 1-hour rate capacity should not be less than 95% of the rated capacity at least once in five times. 5.5 Maximum discharge current
JB/T 8451-1996
The battery should be tested according to 8.4, the conductive parts should not be melted, and the appearance should not have obvious deformation. 5.6 Overcharge resistance
The battery should be tested according to 8.5, and there should be no leakage and obvious deformation. 5.7 Charge retention capacity
The battery should be tested according to 8.6, and the charge retention capacity should not be less than 80% of the rated capacity. 5.8 Sealing reaction efficiency
The battery should be tested according to 8.7, and the sealing reaction efficiency should not be less than 90%. 5.9 Exhaust valve action
The battery should be tested according to 8.8, the opening pressure of the exhaust valve is below 49kPa, and the closing pressure is above 1kPa. 5.10 Overcharge life
The battery should be tested according to 8.9, and the overcharge life of 6V and 12V batteries should not be less than 180d, and the overcharge life of 2V batteries should not be less than 240d.
5.11 Explosion-proof performance
The battery should be tested according to 8.10, and the internal part of the battery should not explode when there is an open flame outside. 5.12 Acid mist resistance
The battery should be tested according to 8.11, and the amount of acid mist precipitated for every 1Ah of charging power should not exceed 0.025mg. 6 Sampling and inspection rules
6.1 All products proposed for delivery must be tested according to the factory inspection, and can only be shipped after passing the inspection of the quality inspection department, and should be accompanied by documents proving the quality of the product.
6.2 Products subject to type inspection must have passed factory inspection. 6.3 In case of any of the following situations, sampling should be carried out for type inspection: a)
new products under trial production,
b) when there are changes in product structure, process formula or raw materials, c)
products in mass production should be sampled regularly, at least once a year. 6.4 Inspection classification, test items, sample units and test cycles (see Table 2). 6.5 Battery test items and test procedures (see Table 3). 6.6 Sampling for battery type inspection should be selected from the models with the largest production volume for testing. 6.7 If the requirements of this standard are not met during type inspection, double retesting may be allowed. If there is still one that does not meet the standard, the batch will be judged as unqualified. 6.8 The storage of products (samples) shall meet the following conditions: a) Products shall be stored in a dry, clean and well-ventilated warehouse at 5-40℃; b) Products shall not be exposed to direct sunlight and shall be kept away from heat sources (heating, etc.) at a distance of not less than 2m, and shall avoid contact with any toxic gases and organic solvents. )
Instructions for use:
1] Japanese standards do not contain this content and are formulated according to national conditions. 74
Inspection classification
Type inspection
Note: Serial numbers 1 and 2 are factory inspections.
Overcharge resistance
Sealing reaction efficiency
Anti-acid mist performance
Maximum discharge current
Overcharge life
Charge retention capacity
Explosion-proof performance
JB/T 8451—1996
Table 2 Test items and test cycle
Test items
Dimensions
Maximum discharge current
Overcharge resistance
Charge retention capacity
Seal reaction efficiency
Exhaust valve action
Overcharge life
Explosion-proof performance
Acid mist resistance
Sample unit
Spot check 3%
Table 3 Test items and test procedures
Battery number
Note: 10-hour rate capacity is tested at one, three and five times, and 1-hour rate capacity is tested at two and four timesTest conditions
7.1 Test battery
The test battery should be a product within 6 months after manufacture and should be tested in an upright state. 7.2 Test instruments
7.2.1 Electrical measurement
7.2.1.1 Voltage measurement
The accuracy level of the instrument used to measure voltage shall not be lower than Class 0.5.7.2.1.2 Current measurement
The accuracy level of the instrument used to measure current shall not be lower than Class 0.5.3
Test cycle
Monthly
Quarterly
Semi-annually
Yearly
Semi-annually
Semi-annually
Yearly
Semi-annually
Yearly
7.2.2 Temperature measurement
JB/T 8451—1996
The thermometer used to measure temperature shall have an appropriate range, and its graduation value shall not be greater than 1°C. 7.2.3 Time measurement
The instrument used to measure time shall be divided into hours, minutes and seconds, and shall have an accuracy of at least ±1%. 7.2.4 Dimension measurement
The graduation value of the measuring tool used to measure dimensions shall not be greater than 1mm. 7.2.5 Pressure measurement
The accuracy level of the instrument used to measure pressure shall not be lower than Class 0.25, or an instrument of equivalent accuracy. 7.3 Full charge before test
The battery shall be charged at a single cell voltage of 2.35~2.40V in an environment of 25±5℃ for not less than 24h. The initial current of charging shall not exceed 3I10. If there is no obvious change in the current within 4h at the end of charging, the battery is considered to be fully charged. 8 Test method
8.1 Appearance
The appearance quality of the battery shall be visually inspected.
8.2 Dimension
Measure the external dimensions of the battery with a measuring tool of appropriate accuracy. 8.3 Capacity
8.3.1 After the battery is fully charged, let it stand for 1 to 24 hours. When the surface temperature of the battery pole is 25±5℃, the 10-hour rate capacity is I1. The current is discharged to the average voltage of the single battery is 1.80V; the 1-hour rate capacity is I, and the current discharge is terminated when the average voltage of the single battery is 1.60V, and the discharge time is recorded.
8.3.2 Capacity The 10-hour rate capacity and 1-hour rate capacity are calculated by multiplying the discharge current by the time to discharge to the termination voltage. 8.4 Maximum discharge current
After the battery is fully charged, let it stand for 1 to 24 hours. When the surface temperature of the battery pole and the ambient temperature is 25±5℃, use 30Is current to discharge for 1min, or use 60Io current to discharge for 5s.
8.5 Overcharge resistance
8.5.1 The 10-hour rate capacity of the battery for the overcharge resistance test shall be in accordance with the requirements of 5.4 and shall be carried out on a fully charged battery. 8.5.2 In the ambient temperature range of 25±5℃, charge continuously for 160 hours with a constant current of 0.311o. 8.5.3 After the overcharge resistance is terminated, let it stand for 1 hour and visually inspect the appearance of the battery. 8.6 Charge retention capacity
8.6.1 The 10-hour rate capacity of the battery for the charge retention capacity test shall be in accordance with the requirements of 5.4 and shall be carried out on a fully charged battery. 8.6.2 The surface of the fully charged battery shall be clean and stored in an open circuit for 90 days in the ambient temperature range of 25±5℃. 8.6.3 After storage, if not recharged, the test in 8.3 shall be carried out to calculate the 10-hour rate capacity. 8.6.4 Calculate the charge retention capacity according to formula (1) and express it as a percentage. ×100%
———Charge retention capacity:
Where:
Ca——10-hour rate capacity before storage, Ah; Cb—10-hour rate capacity after storage, Ah. 8.7 Sealing reaction efficiency
8.7.1 The 10-hour rate capacity of the battery for the sealing reaction efficiency test shall be in accordance with the requirements of 5.4 and shall be carried out on a fully charged battery. (1)
8.7.2 The battery shall be charged continuously for 96 hours with a current of 0.1I1. However, for batteries that have been subjected to the overcharge resistance test in accordance with 8.5, this charge can be omitted.
JB/T 8451—1996
8.7.3 After charging for 96 hours, charge continuously for 1 hour with a current of 0.05I, and then start collecting gas for 1 hour. The test shall be carried out at an ambient temperature within the range of 25±5℃. Gas collection device (see Figure 8). +
1—battery
2—measuring cylinder
8.7.4 Calculate the sealing reaction efficiency according to formula (2) and formula (3) and express it in percentage. Vl
U2. (t+273) henry
Wherein:
The amount of gas discharged during the gas collection process at 25°C and 1 atmosphere of pressure for 1 Ah of electricity, ml/Ah; P—the atmospheric pressure during the measurement, kPa,
P. ---- 101. 3 kPa:
The ambient temperature of the measuring cylinder, °C;
VThe amount of discharged gas collected, ml
Q-The amount of electricity passed during the gas collection, Ah, n-the number of single batteries.
)×100%
Where: n is the efficiency of sealing reaction;
684—theoretical gas generation at 25℃, 1 atmosphere through 1Ah of electricity, ml/Ah. 8.8 Exhaust valve action
The exhaust valve action test is only for component inspection. When the exhaust valve is gradually added with air pressure, the pressure when the valve is opened is measured, and the pressure when the valve is closed is measured by natural decompression.
8.9 Overcharge life
The 1-hour rate capacity of the battery in the overcharge life test shall be in accordance with the requirements of 8.3 and shall be carried out on a fully charged battery. In the ambient temperature range of 25±5℃, charge continuously with a current of 0.21, and conduct a 1-hour rate capacity test every 30 days in accordance with 8.3. When it is less than 80% of the 1-hour rate rated capacity and the verified capacity is still less than 80% of the rated capacity, the life is terminated in days. 8.10 Explosion-proof performance
The fully charged battery is charged with a current of 0.5I1o. After 1 hour, a 24V DC power supply is used near the exhaust part to blow the 1A fuse to produce sparks. Repeat the test twice. 8.11 Acid mist resistance performance
The fully charged battery is continuously charged with a current of 0.5I1o. After charging for 2 hours, gas collection begins. Three absorption bottles filled with 0.01mol/1 sodium hydroxide solution are connected in series and the gas is collected for 2 hours. The amount of acid mist precipitated by the sodium hydroxide solution is measured, and the amount of acid mist precipitated per 1Ah is calculated using the charging power at 2 hours.
9 Marking, packaging, and transportation
9.1 Marking
9.1.1 Battery products should have the following markings:77
Product model or specification;
Polarity symbol,
Manufacturer name and trademark.
The outer wall of the packing box should have the following signs:
Product name, model or specification, quantity, manufacturing date:
Manufacturer name;
Manufacturer address;
Net weight and gross weight of each box;
JB/T 8451—1996
Mark "moisture-proof", "handle with care", "upward" and other words or symbols. PackagingWww.bzxZ.net
The packaging of batteries should meet the requirements of moisture-proof and shock-proof. Documents provided with the product in the packing box: packing list;
Product certificate;
c) Product instruction manual.
9.3 Transportation
9.3.1 During transportation, the product should not be subjected to severe mechanical impact and exposure to the sun and rain. 2 During loading and unloading, the product should not be thrown, rolled over, or pressed heavily. 9.3.2
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