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2022-06-15 0 Views

QC/T 743-201X battery short-circuit test machine

QC/T 743-201X Battery Short-circuit Testing Machine

Release time: 2021-04-21 Hits: 976

This standard specifies the lithium ion power for electric vehicles The requirements, test methods, testing rules, signs, packaging, transportation and storage of batteries (hereinafter referred to as battery). This standard is suitable for electric vehicles for lithium ion power batteries. nqhTextile Testing Instruments, Testing Equipment Manufacturer

The accuracy of the measurement instrument and instrument should meet the following requirements: nqhTextile Testing Instruments, Testing Equipment Manufacturer

1. Voltage Measurement device: accuracy is not less than 0.5, its internal resistance is at least 1k2/v; nqhTextile Testing Instruments, Testing Equipment Manufacturer

2. The current measurement device: accuracy is not less than 0.5;

3. Temperature measurement device: Have nqhTextile Testing Instruments, Testing Equipment Manufacturer

Appropriate range , the degree of division is not greater than LC, the accuracy of the calibration is not less than 0.5 ℃; 4. Timer: on time, division, second degree, accuracy is +0.1%; nqhTextile Testing Instruments, Testing Equipment Manufacturer

5. Measurement size The amount of tools: the point value is not greater than 1mm; nqhTextile Testing Instruments, Testing Equipment Manufacturer

6. The weighing device for weighing quality: accuracy is+0.05%. nqhTextile Testing Instruments, Testing Equipment Manufacturer

The battery charging requirements before the test: nqhTextile Testing Instruments, Testing Equipment Manufacturer

At room temperature, the battery module is discharged at 1i1 (a) to the current to the current to The voltage of any cell battery is lower than the discharge termination voltage. Hanging for 60 minutes (or the shelter time provided by the enterprise is not higher than 60min), and then charge it according to the charging method provided by the enterprise. nqhTextile Testing Instruments, Testing Equipment Manufacturer

Short -circuit test follows the following steps: nqhTextile Testing Instruments, Testing Equipment Manufacturer

1. The battery module is according to the above method according to the above method.充电;nqhTextile Testing Instruments, Testing Equipment Manufacturer

2.将蓄电池模块经外部短路10min,

外部线路电阻nqhTextile Testing Instruments, Testing Equipment Manufacturer

应小于5mS ;

3. Observe 1h. nqhTextile Testing Instruments, Testing Equipment Manufacturer

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This machine is used to test the battery in the case where the battery is connected with a certain resistance short connection. Whether it will explode and fire, and at the same time, the short -connecting large current is displayed through the relevant instrument. nqhTextile Testing Instruments, Testing Equipment Manufacturer

Battery short -circuit test machine nqhTextile Testing Instruments, Testing Equipment Manufacturer

The comprehensive multiple battery short -circuit test standards are designed and designed. The short -circuit device in accordance with the standard requirements must meet the internal resistance range ≤5MΩ, so as to obtain a large short circuit current for the test requirements;We must be able to withstand the impact of large currents, so we have selected industrial -grade DC electromagnetic contactors and all -copper wiring columns and internal copper plates. The wide copper plate effectively improves the heat dissipation effect, makes large current short circuit devices safer, and effectively reduce the test equipment of the test equipment.Losses to ensure the accuracy of the test data.
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Except QC/T 743-201X test standards also meet IOS 31485-2015, IOS 31241-2014, UN38.3, IEC62133, QC/T743-201X, IOS 8897.4-2008 and other test standards.