Quote:
Originally Posted by vlamgat
You are so right and thanks for the warning. I have done this uprating because I know my wiring is new and to spec. In addition single phase 110v stuff is pretty benign below 30 amps. I have some 40 amp rated circuits in the house for steamers and things and they are essentially the same wiring only the breaker is different and there are no junctions. Continuous wiring from the breaker to the appliance and the neutrals.
Now my 220v stuff is a whole other story. In fact to get material that is capable of handling even small appliances you need to use 220v OEM equipment especially from manufacturers that sell product in 220v markets like Europe.
Just my 2c and probably even as valueless as the $ today.
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I have to disagree with you here. 15A circuits are normally run with 14ga wire, 20A circuits needs 12ga wire and 30A circuits need 10ga wiring. It takes either a trained eye to tell the difference in the wire gauges, or a magnifying glass to read the size off the wires.
The wire sizes are the same for 110/115/120 and 220/230/240. The wire size (gauge) is a function of the current capacity of the circuit. The breaker should be selected to the lowest capacity of wire, outlet or hard wired device.
Upping a breaker size is a no-no, as is installing a higher rated outlet on an undersize wired circuit.
When you've seen a fire start from an outlet, you will always err on the side of caution. For example: I never run 14ga, even on a 15A circuit, as soon as a run exceeds 50' I will up the gauge again. Wire is cheap. Replacing a wall or a house or a loved one is not.
Mike