&Nbsp&Nbsp; Safety level of intrinsically safe circuits:
1. "ia" protection level
After applying Um and Ui, the intrinsically safe circuits in electrical equipment with "ia" protection level should not cause ignition in each of the following situations:
a) normal operation and non counting faults under the most unfavorable conditions B) Normal operation and application of a counting fault plus non counting faults under the most unfavorable conditions C) Normal operation and application of two counting faults plus non counting faults under the most unfavorable conditions
Secondly, the "ib" protection level
After applying Um or Ui, the intrinsic safety circuit in the "ib" level electrical equipment should not cause ignition in each of the following situations:
a) normal operation and non counting faults under the most unfavorable conditions B) Normal operation and application of a counting fault plus non counting faults under the most unfavorable conditions
Thirdly, the "ic" protection level
After applying Um or Ui, the intrinsic safety circuit in the "ic" level electrical equipment should not cause ignition under normal working conditions
Characteristics of Intrinsically Safe Equipment:
1 Equipment of Class IA can be used in Zone 0 of hazardous areas 2. Small size, light weight, and low cost 3. Simple structure, easy to operate and maintain Due to the principle of energy limitation, there are limitations
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 problemsBaijian 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 China