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Absolutely! A good percentage of test and lab equipment available in the US is not UL or ETL listed. I also find it consistent that so many electricans are VERY surprised by this. Yet, it is very common. Next time you find yourself in a lab or small shop of some sort, look at an oven...

Oh yes ... thanks, it didn't sound right when I typed it .. it is Nationally Recognized Testing lab ... No, NRTLs come to a given unit by ACTUALLY inspecting, and modifying (as needed) each unit. (unless they are done in the manufacturing process). This was done to many of the several...

Jimbo Thanks. Yes, I know that the question is a bit out of the everyday topic for remodeling guys, but I was thinking that some here still might have run into something like this. The NEC calls for "equipment" to be listed/labeled (that is, U.L listed, for example), or a NRTL (Nationally...

I have a big problem at our new facility in MA. The local electrical inspector is telling us that all of our standard, plug-in-the-wall instruments and devices need to be NRTL rated, or otherwise listed/labeled. We are talking here about standard test boxes, such as oscilloscopes, small lab...