I have used a 1mm² wire to power my refrigerator and my ro water purifier? My electrician had set that up and he told me that he is using a 1.5mm² wire! so is 1mm² wire ok to power up my refrigerator and water purifier? Any harm? please advice. Many thanks in advance
1mm² wire load capacity
wire
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Best Answer
Disclaimer: Consult local electrical code, and/or utilize a licensed and experienced electrician.
Typically there are code restrictions for what kind of supply wire should be present for different installations. This is usually a function of the Amperage of the system, not the device plugged in. For instance, a 20 amp service at 120 v in the US is typically required to be wired in 12 GA solid copper (or 3.31mm2).
Since this amperage is the primary concern, I would stick to anything larger than or equal to at least the equivalent of 14ga wire. However to minimize things like dimmer of other related circuits, I would stick to 12Ga wire where possible.
Wire size conversions - http://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html