Re: Need a 220V outlet for a stove
This is no longer correct. Dryers have always required a 120/240V (dual-voltage) circuit. The interior drum light and sometimes the controls and motor operate on 120V while the element operates on 240V. In the past it was permissible to derive the neutral from the ground wire, but in all new construction it's required to install a 4-wire circuit. And it should be 30A, not 20A.
Originally Posted by JLMCDANIEL
Ranges as well used to be wired with 3-wire circuits where the neutral and ground were bonded where the cord enters the range, but that too is no longer permissible. You are correct though that a 50A circuit is required for the range.
Bonding the neutral to the frame of an appliance is not a good idea. In the event that the shared ground/neutral wire leading to the appliance is interrupted or broken, electricity can still flow through the 120V components of the appliance, making the frame of the appliance electrified. A person can receive a shock in such a situation, which could result in electrocution. A circuit breaker will not protect against this type of fault.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.