Makes no difference 30 or 50. All outside outlets are on the GFI circuits with the required inside GFI circuit. It is any outlet that is within 6' of a water supply to include any outside ground level storage area as well as KIT, dinning, and baths per the NEC. Utility seems to have two meanings. One is usually the 2nd circuit of outlets not on the GFI circuit. The other meaning is whatever piece of equipment they choose to hook it to. I have seen it being the fireplace/microwave which will include Latching relay for both as well as other things.
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Retired Master Electrician and Building Inspector.
2011 Keystone Sprinter 323 BH
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