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re: 4 prong dryer hook up question

Posted on 9/25/16 at 3:26 pm to
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
31161 posts
Posted on 9/25/16 at 3:26 pm to
quote:

Can it burn the house down?





It's more of a shock hazard than a fire hazard. If you get a short to the appliance case and touch it, it may go through you to ground (or a child or pet). I would recommend against it unless you're planning to run a ground wire to the adapter, but people do it all the time and odds are you'll never shock yourself.
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 9/25/16 at 5:11 pm to
quote:

It's more of a shock hazard than a fire hazard. If you get a short to the appliance case and touch it, it may go through you to ground (or a child or pet). I would recommend against it unless you're planning to run a ground wire to the adapter, but people do it all the time and odds are you'll never shock yourself.


It was many decades after the advent of electricilty in homes before anyone saw the need for a 3 wire system with ground, I wonder home many people actually died because of the lack of chassis gound. There are literaly houndreds of thousands if not millions of older homes that have never been re-wired, still using the two wire system, but hearing about someone being electrocuted in their home is pretty rare.
Posted by Steadyhands
Slightly above I-10
Member since May 2016
6846 posts
Posted on 9/26/16 at 7:06 am to
quote:

It's more of a shock hazard than a fire hazard. If you get a short to the appliance case and touch it, it may go through you to ground (or a child or pet). I would recommend against it unless you're planning to run a ground wire to the adapter, but people do it all the time and odds are you'll never shock yourself.


You can run a jumper wire between the ground and the neutral(common) connection on the back of the dryer. In fact, that is how you do it. That way if there is a possible shock it directs it down the common wire and treats it like a ground. In the breaker panel, a lot of the time the neutral and ground bus are connected anyway. Outside where your meter socket is, the neutral and ground are always connected with a jumper rod of sorts. So using a 3 vs 4 prong plug is no different, it's all in how you connect the wires.
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