For a list of UL standards for common household appliances, see the relevant standards list below this page. Compared with international standards, the American UL safety standards are self-contained and are quite different from international standards.
Today, there are 5 safety standards for household appliances coordinated by UL and IEC:
UL 60335-1 (General Safety),
UL 60335-2-3 (electric iron),
UL 60335-2-8 (electric shavers, clippers),
UL 60335-2-24 (refrigerators, ice machines),
UL 60335-2-34 (Electric Motors – Compressors).
The main differences between the UL standard and the IEC standard are:
Different requirements for protection against electric shock and fire protection: IEC standards are based on electrical appliances with AC voltages between 220 and 240V, and have higher design requirements for electric shock protection of appliances, that is, stricter regulations on electrical insulation performance and electrical clearance of materials and structures; In North America, the voltage of electrical appliances is 110-120V, and most of their houses are made of wood. Therefore, the UL standard has relatively strict requirements in terms of fire protection, and requires higher flame resistance of materials. The polymer materials used in key parts of the product require higher UL flame retardant rating; Forestry 182 0070 0074
The standard structure is different: the special safety requirements of the IEC standard for specific products need to be used in combination with the general safety requirements, while the UL standard has one standard for one product; Safety is the key, and the test results are the basis for verifying whether the design of the structure and the selection of components are reasonable. The IEC standard combines the requirements for the structure and the test methods for verification according to various aspects that may affect the safety performance of the product. In addition, the UL standard also makes relevant provisions for the routine inspection of the factory.
Why Amazon US station must apply for UL test report
The United States is a region with very strict safety requirements. All electronic product manufacturers in the United States have required relevant safety inspections many years ago. With the continuous improvement of Amazon's strategic position in global commerce, overseas electronic devices continue to flow into the US market through Amazon, and the US does not have mandatory safety inspections for overseas electronic product manufacturers. A series of electronic product fire incidents occurred before. In response to this situation, on September 24, 2017, the relevant US departments issued a law specifically for e-commerce, requiring Amazon to be obliged to notify overseas e-commerce sellers selling on the Amazon platform to provide relevant safety measures. Before submitting the UL standard test report, Amazon must order the merchant to stop selling. And it is required that the test report must be a qualified report issued by a laboratory accredited by the /ILAC ISO 17025 standard.
UL60335 test report processing process
1. The applicant submits an application.
2. The applicant fills in the application form and provides instructions and technical documents.
3. Determine the test standards and test items and quote them.
4. The applicant confirms the quotation and submits samples and relevant technical documents.
5. A fee notice is issued to the applicant, and the applicant pays the certification fee according to the fee notice.
6. Arrange the product for testing.
7. If the test fails, notify the applicant and allow the applicant to improve the product.
So, until the test is qualified. The applicant should make changes to the technical data in the original application to reflect the actual situation after the changes.
8. If the test is qualified, the applicant will be provided with a UL test report.