When each part of the motor has different protection levels, the lowest protection level should be indicated first. If it is necessary to indicate a higher level of protection, the applicable parts should be clearly defined Note: Due to size limitations on the nameplate, the minimum protection level can usually only be indicated. Other parts with a higher level of protection should be indicated in the document and/or user manual In addition, lower protection levels such as the protective cover of the external fan (as specified in 4.3) and the drain hole (as specified in 4.4) do not need to be marked on the nameplate or in the document. When the installation method of the motor has an impact on its protection level, the manufacturer should indicate the predetermined installation method on the nameplate or installation manual
General test requirements
The tests specified in this section are type tests. The test should be conducted on standard products or their models. When it is not feasible, verification through alternative testing or drawing review and acceptance shall be stipulated by mutual agreement between the manufacturer and the user Unless otherwise specified, the prototype for each test should be completely cleaned, all components should be in place, and installed in the manner specified by the manufacturer For protection levels with the first and second characterization numbers of 1, 2, 3, and 4, if it can be determined through visual inspection that the required protection level has been achieved, no further testing is required. But if there is any doubt, the test can be conducted according to Chapter 8 and Chapter 9
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