ETL Certification Overview 
 ETL SEMKO Intertek Testing Services Ltd is part of the company is the world's largest product and commodities testing organization in North America, Europe, Asia, 93 countries with 240 laboratories and 469 offices. ETL SEMKO provides product safety testing and certification, EMC testing, performance testing, while providing such as medical, HVAC, appliances, telecommunications, aerospace, automotive, semiconductor, building materials, energy generation system and other industry quality management system of registration. 
 Any electrical, mechanical or electromechanical products with a long ETL logo on the test that it is tested in accordance with relevant industry standards. Each industry has different testing standards, so the specific requirements of certain products to the professional advice. ETL mark test is widely used in cable products that passed the test. 
 ETL certification knowledge 
 In most parts of the United States, the approval of electrical products is mandatory. ETL refers to the ETL Testing Laboratories (ETL Testing Laboratories Inc). The ETL Listed product is "the competent authority having jurisdiction" (Authorities Having Jurisdiction) recognized, can be considered "approved." 
 ETL's factory inspection 
 ETL in the certification before the need for factory inspection, after which time each quarter will be no follow-up factory inspection costs out of the factory inspection fee, certificate of need to pay a quarterly license fee. 
 If necessary, the inspectors witnessed the products can be re-testing or testing in the laboratory after sampling. 
 Permit must sign a legal contract with the ETL (service agreement), it clearly defines the responsibility of manufacturers and continuous ETL and ETL Listed mark with the conditions. 
 ETL certification application 
 ETL certificate currently obtained in two ways, one is transferred through the CB test report can also directly apply, submit the required documents as follows: 
 1 Form 
 2.CB test certificate (not directly apply) 
 3.CB test copies of the report (do not apply directly) 
 4 samples 
 5 Other relevant test results and product data, such as: product manuals, photos, parts lists, and so on. 
 (As reported by CB switch, you need to test for differences) 
 Jie who is four times a year. 


 ETL certified to U.S. security, by Thomas Edison in 1896, the U.S. OSHA (the federal Occupational Safety and Health Administration) approved NRTL (Nationally accredited laboratories.) Experienced 100 years, ETL mark has been the major retailers in North America and manufacturer's widely recognized and accepted, and enjoyed a high reputation as UL. 
 ETL inspection mark 
 Any electrical, mechanical or electromechanical products with a long ETL logo on the test that it is tested in accordance with relevant industry standards. Each industry has different testing standards, so the specific requirements of certain products to the professional advice. ETL mark test is widely used in cable products that passed the test. 
 ETL Listed Mark 
 Any electrical, mechanical or electromechanical products with a long ETL mark to show that it is tested in accordance with the relevant product safety standards, but also represents the manufacturers agreed to receive rigorous and regular checks to ensure consistency of product quality. The bottom right of the "us" that applies to the United States, the lower left of "c" that applies to Canada, both "us" and "c" in the two countries apply. 
 ETL and UL applications as required factory inspection, but the application period will be shorter, the cost is relatively lower than the UL. 
 ETL is an abbreviation Electrical Testing Laboratory, is the "NRTL" labs, and one of the four Nordic countries of Sweden SEMKO certification body is InterTek group with a product certification services under the. 
 Any electrical, mechanical or electromechanical products with a long ETL logo on the test that it is tested in accordance with relevant industry standards. ETL mark mainly available in the U.S. market.