Hey, sparky, I got a hundret dollars and this busted plug. Can you fix 'er up? I don't think there is any question that everyone would prefer to rewire with ground included but the real world doesn't work that way. I've still got 2 strings of 2 prong outlets running downstream from ungrounded GFCIs in my own house. Some day, they'll get replaced but I did all I could before we moved in. With the GFCI, they are a lot safer than they used to be.
Re: two prong vs GFCI outlet#38761 06/01/0407:08 PM06/01/0407:08 PM
Most of the general-use equipment being plugged into 15- and 20-ampere receptacles only have two prong attachment plugs anyway, and those that do have 3 prongs don't usually have exposed metallic or grounded parts. Everything is plastic. You really only run into issues with refrigerators and washers.
Bryan P. Holland, ECO. Secretary - IAEI Florida Chapter
Re: two prong vs GFCI outlet#38762 06/01/0408:07 PM06/01/0408:07 PM
250.114 says that you can't use the GFCI method for any of these: -------------------------------- (3) In residential occupancies: a. Refrigerators, freezers, and air conditioners b. Clothes-washing, clothes-drying, dish-washing machines; kitchen waste disposers; information technology equipment; sump pumps and electrical aquarium equipment c. Hand-held motor-operated tools, stationary and fixed motor-operated tools, light industrial motor-operated tools d. Motor-operated appliances of the following types: hedge clippers, lawn mowers, snow blowers, and wet scrubbers e. Portable handlamps
Ryan Jackson, Salt Lake City
Re: two prong vs GFCI outlet#38763 06/01/0408:27 PM06/01/0408:27 PM
How would I enforce it? You act like a permit would be taken out!!
Honestly, if I were to run into this in the feild as an inspector I would give the owner the list I provided and say "here you go"! If they violated it and something bad happened it would be assumption of risk on their behalf and not negligence on mine.
Ryan Jackson, Salt Lake City
Re: two prong vs GFCI outlet#38765 06/02/0401:50 AM06/02/0401:50 AM
Hey Ryan, in practice most of the stuff you mentioned is actually double-insulated, so it wouldn't even matter to connect it withouzt a GFI. A ground is definitely _not_ necessary for technical reasons. Where would it go with a 2-prong plug? IT equipment does need a ground, both because it often comes in metal enclosures and for static discharge. For the latter reason an ungrounded GFI is not good for this kind of equipment.
Re: two prong vs GFCI outlet#38766 06/02/0405:25 AM06/02/0405:25 AM
... At this juncture,I have to pose a question.. I'd heard that GFCI's as a rule "don't like" motor loads,ie;...Refrigerator compressors,washing machine motors,..etc,because they "see" the start up windings as a short,and result in nuisance tripping..is this true..?? Russ
.."if it ain't fixed,don't break it...call a Licensed Electrician"