What specific requirements does the US ETL certification for the quality and safety of America ETL Extension Power Cord products have?

The US ETL certification has a series of specific requirements for the quality and safety of America ETL Extension Power Cord products to ensure that the product will not cause harm to users or the environment during normal use. ETL certification requires that all key components of the America ETL Extension Power Cord (such as power plug wire, fuse, power switch, etc.) must be UL certified. This means that these components have passed rigorous safety tests and meet relevant safety standards.
The America ETL Extension Power Cord must be able to withstand its nominal voltage and current without dangers such as overheating, short circuit or electric shock. The insulation layer of the power cord must be thick enough to prevent current leakage or short circuit. At the same time, the insulation layer material should have good heat resistance and aging resistance. For electrical equipment that needs to be grounded, the America ETL Extension Power Cord must provide a reliable grounding connection to ensure that the current can be directed to the earth in time when leakage occurs, protecting users from electric shock.
The cable of the America ETL Extension Power Cord must have a certain strength and toughness to withstand mechanical stress such as stretching, bending and twisting during normal use. The plug of the power cord must fit tightly with the socket to prevent loosening or falling off, resulting in poor contact or short circuit. For parts that may come into contact with live parts, appropriate protective measures must be taken, such as using insulating sleeves, heat shrink tubing, etc.
Extension cords must have certain fire resistance to prevent fueling the fire or producing toxic gases in the event of a fire. This usually requires the power cord to be made of flame-retardant materials and pass relevant fire tests. Key information such as manufacturer information, model specifications, rated voltage and current must be clearly marked on the extension cord. The necessary safety warnings and usage precautions must be included on the product packaging or instructions to remind users to use the product correctly and avoid potential safety risks.
ETL certification is not a one-time process, and products need to be tested and maintained regularly. For extension cords, this includes checking the wear of the cable, the looseness of the plug, and the integrity of the insulation layer. Once a safety hazard or quality problem is found, the ETL certification agency should be contacted in time to troubleshoot and resolve the problem.
The US ETL certification has strict requirements for the quality and safety of extension cord products, covering multiple aspects such as component certification, electrical safety, mechanical safety, fire safety, and labeling and instructions. These requirements are intended to ensure that the product does not cause harm to users or the environment during normal use and to provide users with safer and more reliable electrical connection solutions.