1. Power Source:
* Shore Power: Most RVs use a standard 30-amp or 50-amp RV power connection.
* For 30-amp, you'll typically need 10 AWG (American Wire Gauge) wire, preferably with a flexible, weather-resistant jacket (like THHN or UF).
* For 50-amp, you'll need 6 AWG wire with a flexible, weather-resistant jacket.
* Generator: The wire size will depend on the generator's output. Check the generator's manual for the recommended wire gauge and size.
* Solar: For solar power, you'll need wire sized for the current output of your solar panels. Consult your solar panel system documentation for recommended wire sizes.
2. Distance:
* The longer the distance between the power source and the camper, the larger the wire gauge you'll need to avoid voltage drop.
* Use an online voltage drop calculator to determine the appropriate wire gauge for your specific distance.
3. Circuit:
* You'll need to consider the amperage draw of the individual circuits you're running.
* A dedicated circuit for high-power appliances, like air conditioners, may require a larger wire gauge than a circuit for lighting.
4. Safety:
* Always choose wire rated for the voltage and amperage you're using.
* Consider using wire with a weather-resistant jacket, especially for outdoor installations.
* Ensure all wire connections are properly made and secured.
Important Notes:
* Consult a licensed electrician for complex installations or if you have any doubts about the appropriate wire gauge.
* Follow all local electrical codes and regulations.
Example:
For a 30-amp RV connection running 50 feet, you'd likely need 10 AWG THHN wire. However, consult a voltage drop calculator to determine the exact wire gauge based on your specific power source and circuit loads.
