UN38。 3 the lithium battery test in this paper

Source: 2020 - 03 - What is a UN38 16:18 hits: 29 times. 3 test summary and UN38 lithium-ion batteries. 3 test summary UN38. 3 test requirements, UN38. 3 certification, UN38. 3 air and sea delivery statement: according to the rules of the international air transport association (iata) dangerous goods regulations, rechargeable lithium battery of operational procedures, namely, UN38. 3 ( UNDOT) Test formulation. This statement by the third party inspection agencies designated by the civil aviation administration or have the ability to detect the battery manufacturers. Civil aviation air transport, if the statement is not supply will ban lithium battery. The international air transport association ( IATA) UN38。 3 refers to the United Nations especially dangerous goods transport of dangerous goods transport handbook '38th part described in part 3 of the United Nations of dangerous goods transportation. Paragraph 3, which requires the lithium battery before transportation, should be highly simulation, high and low temperature cycle, the vibration and impact experiments, 55 ℃ short circuit and impact experiments, charging experiments, forced discharge, transportation security capabilities ensure that lithium batteries. If you are not equipped with lithium battery of the device, and each package contains more than 24 pieces of batteries or battery 12, 1 is needed. 2 meters free drop test. UN38。 Three specific test: 1. Simulated altitude pressure & le; 11. 6 kpa, temperature 20 & plusmn; 5 ℃, no leakage, no exhaust, no collapse, no burning, no blasting, no damage, no less than 90% before experiment, shows that weightlessness requirement 2. In 75 & plusmn; 2 ℃ and - 40± 2 ℃ under the condition of high and low temperature cycle. The limit temperature storage time & ge; 6 h, high and low temperature & le; 30 min, the impact of 10 times at room temperature ( 20± 5℃) Storage for 24 h. No leakage, no exhaust, not collapse, not burning, not burst, with no damage, the former shall not be less than 90%, the former shall not be less than 90%, should be not less than 90% before experiment, experiment before should not under 90%, before the trial shall be not less than 90%, before the trial shall be not less than 3 90%. 7 hz - is done in 15 minutes The reciprocating logarithmic sweep of the 200 hz frequency oscillation time, 3 h accomplish three-dimensional direction oscillation 12 times. No leakage, no exhaust, no collapse, no burning, no blasting, no damage, no less than 90% before test, formulate 4 weightlessness is asking to see. 150 designed. the gn, 6 ms or 50 designed. the gn, 11 ms evenly, each direction 3 times, a total of 18 times. Before the trial no leakage, no exhaust, no collapse, no burning, no blasting, no damage, open circuit voltage of no less than 90%, weightlessness clear 5 zhongguo kuangye daxue short-circuit 55 ℃ + 2 ℃, the external resistance & lt; 0. 1 Ω under the condition of short circuit, short circuit time until the battery temperature back to 55 + 2 ℃ for 1 hour, after investigation and 6 h. Within 6 hours, no crash, no damage, no burning, cell surface temperature & lt; 170℃。 6. With 15. 8 mm round rods impact test was carried out on the battery, the battery weight by 61 & plusmn; 2. 5 cm down to 9. 1 kg, and the surface temperature of the battery testing and inspection for 6 h. Every collision using the new samples. 6 hours, no collision, no damage, no burning, cell surface temperature & lt; 170℃7. In 2 times for 2 times the charging current and charging voltage condition, 24 hours of battery overcharge experiment, and has carried on the survey of 7 days. There is no collision, burns 8. Mandatory discharge battery series dc 12 v power supply, discharge current used for discharge in 7 days. 9 no collision, no burns. 1. 2 drops inspection process: 1. Fill in the certification application form. 2. Provide samples of the relevant technical data, and provide a quote. 3. The test fee after confirm the quotation. 4. To begin testing in the laboratory. 5. After testing, laboratory test report issued by certificate.