GB 12021.9-2008; This standard replaces GB 12021.9-1989 "Limits and Test Methods for Power Consumption of Electric Fans"&Nbsp The main changes in this standard compared to GB 12021.9-1989 are as follows:
- The name of this standard has been changed to "Energy Efficiency Limits and Levels for AC Fans"&Nbsp
- Energy efficiency levels and energy-saving evaluation values have been added to the scope, and page turning fans have been added to the product&Nbsp
- Normative references, terms, and definitions have also undergone corresponding changes&Nbsp
- The limit value for electricity consumption in the original standard has been changed to the limit value for energy efficiency&Nbsp
- All contents of input power limit and speed regulation ratio in the original standard have been deleted&Nbsp
- The content of the chapter on testing methods in the original standard has been completely deleted, and the name has been changed to testing methods, and the testing methods in GB/T 13380 have been adopted&Nbsp
- Significant adjustments have been made to the content of factory inspection and type inspection&Nbsp
- All content in Chapter 6 of the original standard has been deleted This standard specifies the energy efficiency level, energy efficiency limit values, energy-saving evaluation values, test methods, and inspection rules for AC fans. This standard applies to single phase rated voltages not exceeding 250V and other rated voltages not exceeding 480V, driven by AC motors for table fans, rotary fans, wall fans, floor fans, floor fans, and ceiling fans
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