This standard specifies the scope of large three-phase four pole brushless synchronous motors The structural type, basic parameters and dimensions, technical requirements, inspection rules and test methods, marking and packaging, warranty period, and accompanying documents of the motor (hereinafter referred to as the motor). This standard is applicable to motors for mechanical purposes such as drag fans and water pumps. 2 Normative references The following documents are essential for the application of this document. For dated references, only the dated version applies. For undated references, only the dated version applies The latest version of the referenced document (including all modification orders) is applicable to this document. GB/T 191 Packaging, Storage, and Transportation Graphical Symbols GB/T 755 Rating and Performance of Rotating Electrical Machines GB/T 997 Classification of Structural Types, Installation Types, and Terminal Box Positions of Rotating Electrical Machines (IM Code) GB/T 1029 Test Methods for Three-phase Synchronous Motors GB/T 1096 Ordinary Flat Keys GB/T 1993 Cooling Methods for Rotating Electrical Machines GB/T 4942.1 Degrees of Protection (IP Code) for the Overall Structure of Rotating Electrical Machines GB/T 10068 Measurement of Mechanical Vibration of Motors with a Shaft Center Height of 56 mm and Above Evaluation and Limits GB/T 10069.1 Methods and Limits for Measurement of Noise in Rotating Electrical Machines - Part 1: Methods for Measurement of Noise in Rotating Electrical Machines - GB/T 20160 Insulation Resistance Testing of Rotating Electrical Machines - GB/T 22715 Impact Voltage Level of Formed Stator Coils of Rotating AC Motors - JB/T 6204 Specification for Voltage Withstand Testing of Stator Coils and Winding Insulation of High Voltage AC Motors
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