Is there any code that addresses my question? Thank you.
Let me give you my opinion. Article 210.8(B), NFPA 70 2014, lists the requirements for GFCI protection for all 125 volt, 15 and 20 amp receptacles installed in "other than dwelling units" (I sure hope your science lab is not a dwelling unit, but if it is, where do I apply?). Basically this identifies such locations as , Bathrooms, Kitchens, Rooftops, Outdoors, Locker Rooms and Garages (and other places where vehicles are examined). Now I imagine your science lab does not fall into any of these categories, but there is one more and that location is identified as "Wet Locations." And I have had a few back and forth discussions with our AHJ on my facility about exactly what that means. Most people assume it means a location where water is routinely present (and depending on the kind of "science" your lab is engaged in that might be true).
My first feeling is to tell you, no a GFCI device protecting the outlet for a refrigerator in a science lab is not required. And further, if your science lab is a dwelling unit, there is still a reasonable argument against requiring a GFCI devices for a dedicated outlet supplying a refrigerator, and if I were the AHJ I would only require it if the outlet was within 6 feet of a source of water (kitchen sink) or in the garage..
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