To prevent users from experiencing hazards after purchasing household electrical products, hazards include electric shock hazards, heat related hazards, fire hazards, mechanical hazards, energy related hazards, and radiation hazards. Household electrical appliances require testing, including the selection of testing standards and testing content
Testing standards for household appliances
The testing standards for household appliances include safety testing standards and EMC testing standards.
. The safety testing standards include general standards and special standards. The general standard is GB4706.1 General Safety Requirements for Household and Similar Electrical Appliances, and the special standard is GB 4706. X (see attached table). The EMC testing standard is GB 4343.1-2009 "Electromagnetic Compatibility - Requirements for Household Appliances, Electric Tools, and Similar Appliances - Part 1: Emission, GB 17625.1-2012 Electromagnetic Compatibility Limits - Harmonic Current Emission Limits (Equipment Input Current ≤ 16A per Phase)"Testing content of household electrical appliances
1 The testing content of household appliances includes pre picking and testing. Pre inspection refers to the inspection of whether a product meets standard requirements before testing, mainly including the following three aspects:
▶ Product nameplate, usage logo, and manual inspection
▶ Inspection of product appearance and internal structure
▶ Certificate inspection of internal components of the product
2 After pre inspection of the product, conduct safety and EMC (applicable to some household appliances) testing. Safety testing mainly includes the following five aspects:
▶ Input power (or current) test
▶ Heating (temperature) test for normal operation
▶ Leakage current and high voltage test
▶ Abnormal testing
▶ Heat resistance and combustion resistance testing of non-metallic materials
EMC testing refers to electromagnetic compatibility testing, including electromagnetic field interference size EMI testing and anti-interference ability EMS testing. EMI testing includes the following two aspects:
▶ RE (radiation, emission) test, CE (conducted interference) test
▶ Harmonic test, Flicker test
4 EMS testing includes the following four aspects:
▶ ESD (static electricity) test, EFT (transient pulse interference) test
▶ DIP (voltage drop) test, CS (conducted anti-interference) test
▶ RS (radiation immunity) test, Surge (surge lightning strike) test
▶ PMS (Power Frequency Magnetic Field Immunity) Test
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