I am replacing the range in my kitchen with a free standing range. The old range was a electric cook top with a separate wall oven. The old oven and stovetop were connected to a breaker box behind the cabinet which was connected to a junction box near the floor. I removed the breaker and junction box and all wiring. Now all I have coming through the floor is the main wiring. There are 3 wires:red, black and white, no ground. Do I attach a 3 prong recepticle to this or does it have to be 4 prong? There is no ground wire. And get a 3 prong cord for my stove? Will it be grounded? Sometimes I would receive a slight shock from the stove if I touched the sink at the same time. I was told that the stovetop was going bad.
Electrical – replacing a range outlet
electrical
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Best Answer
There is a provision in the National Electrical Code that will allow a 3-wire installation, in situations where there is existing wiring (250.140 exception). You should be fine to install a three prong receptacle, and use a three prong range cord.
There should be special instructions in the manufacturer's installation instructions that are included with the range, that will specify exactly how to attach the 3-wire cord.
If you're really concerned about it, or want to update to follow modern code. You could install a new 3-wire with ground cable, and use 4-prong receptacle and cord.