Heartwarming Three Prong To Four Prong Dryer

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Three prong to four prong dryer. The ground and neutral wires were grouped together creating the potential for shock. 3 prong dryer cords contain two hot wires along with a third wire that contained both the ground and neutral wire. If you want to replace your three prong dryer outlet with a four prong one you have to run a ground wire back to the panel and connect it to the panel s ground bus.

If a current happened to make its way onto the ground wire it could travel up to the. Such a configuration creates a very slight chance of shock in the rare event that the dryer experience a short circuit in its internal wiring. So why did the nec make the decision to switch from 3 prong to 4 prong dryer outlets in new homes.

This was the reason why the code changed to. Either way it s a job for an electrician and it usually isn t necessary because there s a better solution. An alternative would be to ground the outlet separately to a metal stake driven into the ground or possibly to a suitable metal water pipe.

Although the old 3 prong outlets were effective at providing power to dryers they had one major flaw. Therefore the dryer s neutral was tied to the ground connection on the metal case of the dryer. Dryer adapter cord dryer adapter 3 prong to 4 prong nema 14 30p male to 10 30r female 30a 250v dryer cord adapter 4 to 3 prong 20inch 4 7 out of 5 stars 34.