You can develop your own EIS by subjecting a proposed combination of materials (a candidate EIS) to a long-term thermal aging program as outlined in UL 1446. This process will typically take 9 – 18 months to complete, and cost approximately $18,000 to $25,000 in test lab charges and UL fees.
There is an easier, and less expensive, way to obtain a UL Recognized Insulation System – adopt one. Most suppliers of electrical insulating materials have developed UL Recognized EIS that are listed under UL Recognized Component Category OBJS2 and are available for manufacturers of electrical equipment to adopt. Our suppliers have developed a comprehensive set of UL Recognized EIS for temperature classes ranging from Class 130(B) to Class 220(R). These EIS are listed on the UL Electrical Insulation System Database that can be found on the UL website which may be accessed directly at » http://data.ul.com/systems/.
All EIS that are listed on the UL database may be adopted by submitting a project request to UL along with a small fee. You do not need approval from the owner of the UL Recognized EIS to adopt it unless you need to modify the EIS.
You may also request an “electronic” adoption of an EIS listed on the database. This can be accomplished by accessing the EIS database and submitting the appropriate forms electronically. This process can help reduce the time required and costs involved. It is most commonly used when adopting an EIS that does not require modifications or additions. A major benefit to this process is that any revisions to the base EIS will be automatically added to the adopted EIS at no cost.
Information on submitting a project to UL and examples of form letters that can be used may be found in Chapter » "How Can We Help".
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