Q&A About the Ground Wire on a Dryer, Receptacles in a Closet, Mounting Heights for Receptacles and Circuiting the Bedrooms
November 27, 2009
Bruce Chen asks:
I am trying to attach a 4 prong to a Kenmore 70 series equipped w/ a 3 prong. It has the typical red/white/black and then a green wire that is attached to the frame from somewhere in the dryer. I understand to attach the 4 prong cord’s green wire to the frame, but what do I do with the original green wire in the dryer that is attached to the frame? Let it float, keep it where it is on the frame, or attach it to the white wire connection? Thanks for the help!
If it is not connected to the neutral, then leave it connected to the frame. In a 4-wire connection, the ground and neutral wires need to be separated. In a 3-wire connection, the ground and neutrals need to be connected together.
Tim Houser asks:
On the supject of Receptacle spacing in habitable room, are the walls that enclose a closet in the corner of a room considered “WALL SPACE”?
The walls inside the closet re not considered wall space. However, you are required to have a receptacle within 6 feet of the closet opening on each side if there is wall space 2 feet wide or wider.
Hi I am currently going to school to obtain my journeymans, in my third year. My question is what year NEC book and section tells you the requirements for 18 inch centers for receptacles mounted above finished floor in residential applications. The 2008 NEC book tells me nothing about what I am looking for.
There are no mounting height requirements in residential applications which require you to mount the receptacles at 18 inches to the center of the boxes. I recommend matching the existing height of your receptacles. In some older homes, you will find receptacles mounted horizontally in the baseboard.
Michael Wright asks:
I am running new romex to my bedrooms in a house that is 150 years old. What is the best way to run a bedroom circuit? I have 4 bedrooms and would prefer to put them all on their own breaker, but what is the best way. Each one will have at least 4 plugs and a ceiling fan, Should I run more than one circuit or split one between 2 bedrooms like 3 circuits per 2 bedrooms. Thank you for any help.
It really depends on what you intend on having in your bedrooms. I typically put the master bedroom on a dedicated circuit and two bedrooms per circuit for “regular” bedrooms. If these rooms are going to be used for teenagers, then you may want to place each bedroom on a dedicated circuit. One drawback to installing dedicated circuits for each bedroom is the NEC requirement to place these rooms on arc-fault circuit interrupter (AFCI) circuits. These breakers are approximately $35.00 each compared to a standard breaker at approximately $5.00 each.
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