Baijian Testing is mainly engaged in textile, insulation, cosmetics, food, hardware industry related product testing, as well as providing product certification services, but also in the broadening of the scope of the testing industry, the laboratory issued a report can be stamped CNAS/CMA/CAL qualification seal, the report is true and effective.
Sample size: according to the size of the sample to choose the sample or door-to-door
display style: electronic
version of the detection cycle: 3-15 working days (expedited).
The UL2272 standard components require that the entire vehicle shell (UL746C, UL746B), charger (Class II power supply UL1310, non Class II power supply UL1012, UL60950-1), motor (above 60V DC voltage meets UL1004-1, below 60V DC voltage can meet UL1004-1 or this standard requirements), circuit and terminal (UL2251, etc.), protective circuit (UL991, UL1998, etc.), and battery pack (UL2271) should all meet the specific standard requirements for accessories proposed in UL2272. UL2272 certified electrical performance test 1. overcharging (single circuit board fault); 2. Short circuit (single circuit board fault); 3 Overdischarge (single fault of circuit board); 4. Temperature test (temperature meets the temperature requirements of components and contactable surfaces in Tables 26.1 and 26.2); 5. Unbalanced charging (one cell is fully discharged, and other cells are discharged to 50% of their capacity, charged with a specified charger); 6. Withstand voltage test (voltage greater than 6OV is required for this test); 7. Insulation resistance test (voltage greater than 60N is required for this test) UL2272 certified mechanical performance test 1, vibration test. Perform vibration testing on the fully charged balance car according to the table below. Each direction vibrates for 21 hours. When testing two samples simultaneously, each direction vibrates for 15 hours. When vibrating three samples simultaneously, each direction vibrates for 12 hours. After the test, if the balanced vehicle can still operate, it should undergo at least one charging and discharging cycle. After vibration, there is no risk of fire, explosion, shell rupture, or electric shock in the balanced vehicle. 2. The impact test is conducted on a fully charged balance vehicle in the following table, in six directions, with three impacts in each direction. After the test, if the balanced vehicle can still operate, it should undergo at least one charging and discharging cycle. After impact, the balance vehicle has no fire, explosion, shell rupture, or electric shock hazard. 3. Squeeze test This test mainly examines the safety of the balance vehicle after being subjected to external compression
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems100% inspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in ChinaDetection and testing characteristics:
1. Full coverage of the testing industry to meet different tests;
2. Full coverage of laboratories, local testing nearby;
3. One-to-one service of engineers to make the detection more accurate
4. Free initial inspection, no testing fee is charged for initial inspection
5. Self-service order Express free door-to-door sampling;
6. The cycle is short, the cost is low, and the service is considerate;
7. Authoritative qualifications such as CMA, CNAS, CAL, etc.;
8. The test report is authoritative and effective