Scope
Replacement:
This section of LEC 61558 covers the safety aspects of toy transformers and power supplies, including transformers used for toys, such as electrical, thermal, and mechanical safety Parts 2-7 of this section are applicable to toy transformers and power transformers, including toy transformers and electronic circuit transformers. Parts 2-7 of this section do not apply to external circuits and components intended to be connected to input terminals, output terminals, or sockets of transformers and power supplies
Parts 2-7 of this section are applicable to fixed and portable single-phase air-cooled (natural or forced), toy transformers, and power supplies equipped with toy transformers. The supply voltage does not exceed 250 volts AC, the rated supply and internal working frequency does not exceed 500 Hz, the rated output does not exceed 200 VA, and the rated output current does not exceed 10A Parts 2-7 of this section are applicable to independent transformers and transformers for specific purposes Parts 2-7 of this section are applicable to dry type transformers for toys. The windings can be packaged or not The no-load output voltage shall not exceed 33 V AC voltage. Transformers used for toys and power supplies, including toy transformers, or 46 V ripple free DC. The rated output voltage of the power supply for toy transformers shall not exceed 24 volts. Used for transformers and power supplies, or 33 volt ripple free DC. For the supply of electricity Generally speaking, parts 2-7 of this section do not consider toys and power supplies for children playing with transformers, including transformers
Note 1. Please note the following:
Transformers for toys and power supplies, including transformers for toys used for the following purposes
Vehicles on ships and aircraft (other applicable standards, national regulations, etc.) may be necessary Measures should also be considered to protect the outer shell and its internal components from external influences such as fungi, pests, termites, solar radiation, and freezing
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