To determine the appropriate wire size for a 1,000 watt mini oven on a 230V supply, you need to consider the current (amperage) that the oven will draw. You can use the formula:
Power (Watts) = Voltage (Volts) × Current (Amps)
In this case, the power is 1,000 watts, and the voltage is 230 volts. Rearranging the formula to solve for current:
Current (Amps) = Power (Watts) / Voltage (Volts) = 1000W / 230V ≈ 4.35A
Now that you know the current draw is approximately 4.35 amps, you'll need to select an appropriate wire size based on this current. You should choose a wire size that can handle the current without overheating. The wire size is typically specified in American Wire Gauge (AWG) or square millimeters (mm²).
A common rule of thumb is to use at least a wire gauge that matches or exceeds the current in amperage. For a 4.35 amp current, you should use a wire that can handle at least 4.35 amps or higher.
For example, in the case of AWG, you could use a 14 AWG wire, which can safely carry up to 15 amps. This wire size provides a good safety margin for the 4.35 amp current of your mini oven.
Keep in mind that it's essential to consult local electrical codes and regulations, and if you're unsure or not experienced with electrical work, it's best to consult a qualified electrician to ensure proper installation and safety. Additionally, the wire length, installation method, and other factors may also influence the appropriate wire size, so professional advice is recommended.