There are many benefits to be gained by using a UL Recognized EIS, the main one being that the combination of materials has been proven to be compatible when exposed to long-term thermal aging. Generally, thermal stress is the primary factor affecting the service life of the insulating materials in electrical equipment.
In electrical equipment, the EIS is considered one of the components. In order for the end-product equipment to be listed by UL, a UL Recognized Insulation System must be used. Manufacturers of electrical insulating materials will typically offer UL Recognized EIS as a service to the equipment manufacturers, saving them the time and expense required to develop an EIS for their application.
UL Recognition gives equipment manufacturers confidence that the EIS has been properly evaluated and qualified for use, which leads to safer and better products.
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