Measurement, evaluation, and limit values of mechanical vibration vibration for motors with a shaft center height of 56 mm and above. This standard specifies the methods and vibration limits for factory vibration acceptance tests of rotating motors that are detached from any load and prime mover under specified conditions. This standard applies to DC motors and three-phase AC motors with a shaft center height of 56 mm and above, a rated output of 50 MW and below, and a rated speed of 120 r/min to 15000 r/min. This standard does not apply to motors installed at operating locations, three-phase commutator motors, single-phase motors, single-phase powered three-phase motors, vertical hydro generators, steam turbine generators with a capacity greater than 20 MW, and motors with magnetic levitation bearings or series excited motors. Note: The motors measured at the operating location refer to the current documents of ISO 10816 and ISO 7919. 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB 755-2008 Rating and Performance of Rotating Electrical Machines (IEC 60034-1:2004, IDT) GB/T 997 Structural Types of Rotating Electrical Machines, Classification of installation types and junction box positions (IM code) (GB/T 997-2008, IEC 60034-7:2001, IDT) ISO 2954 Mechanical vibration of reciprocating and rotating machinery - Requirements for instruments for measuring vibration intensity ISO 7919-1 Mechanical vibration of non reciprocating machinery - Measurement and evaluation criteria for rotating shafts - Part 1: General ISO 8821 Mechanical vibration - Balancing shafts and keying conventions ISO 10816-1 Mechanical vibration measurement - Evaluation of non rotating mechanical vibration - Part 1: General ISO 10816-3 Mechanical vibration measurement - Evaluation of non rotating mechanical vibration - Part 3: Rated power Industrial machinery with a rate greater than 15 kW and a rated speed between 120 r/min and 15000 r/min - ISO 10817-1 Shaft vibration measurement system - Part 1: Transmission of relative and absolute signals of shaft radiated vibration
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