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.
Report qualification: CNAS, CMA, CAL, etc
. Presentation style: electronic
version of the testing cycle: 3-15 working days (expedited can be expedited)
Testing cost: Quotation according to customer needs and experimental complexity
Sample size: Choose to send samples or visit the door according to the sample size
This standard specifies the technical requirements and parameters for the operation and maintenance of battery DC power supply devices (including batteries, charging devices, and monitoring devices) used in the power system, and is applicable to the operation and maintenance of DC power supplies in various departments of the power system. 2. The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 2900.11-1988 Terminology of Storage Batteries GB/T 2900.33-1993 Electrotechnical Terminology Power Electronic Technology DLT 459-2000 Technical Conditions for Ordering DC Power Supply Cabinets in Power Systems 3 Terminology. In addition to the provisions of the referenced standards GB/T 2900.11 and GB/T 2900.33, the following terminology is added: 3.1 First charge: The first charge carried out by a new battery to fully reach its state of charge before delivery for use. The working procedure for initial charging should refer to the manufacturer's instructions. 3.2 Constant voltage charge is a charging process where the charging current is maintained at a constant value within the charging voltage range. 3.3 Equalizing charge is a charging process that compensates for the uneven voltage generated by the battery during use and restores it to the specified range. 3.4 Constant current limt voltage charge: First, charge in a constant current manner. When the voltage at the battery end rises to the limit value, the charging device automatically switches to constant voltage charging until the charging is completed. The 3.5 floating charge operates in a constant voltage charging mode, always connected to the battery and load at the DC output end of the charging device. During normal operation, the charging device replenishes the battery while bearing frequent loads to compensate for the self discharge of the battery and keep the battery in a "capacity" state for backup. 3.6 Supplementary charge: During storage, due to self discharge, the capacity of the battery gradually decreases or even becomes damaged. According to the manufacturer's instructions, regular charging is required
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