I am using a wire that is rated 10Amps at 120v ACwith a car headlight and a SLA battery. About how many amps could this wire carry before getting warm or melting of DC current at 13.8volts?
Answer
Unless you're working with RF (e.g. high-frequencies, > ~100 Khz), or really, really large wire (cross sections in inches), Amperes are Amperes are Amperes.
As such, a wire rated to handle 10 amps can handle 10 amps, independent of the voltage.
The voltage rating of wire generally relates to the breakdown voltage of the insulation. Basically, with wire rated to 120V, you can be confident that normal handling of the wire while it's energized with 120V will be safe.
If you were to put ~1000V on it, you might encounter issues with the insulation breaking down, and it could possibly shock or electrocute someone. However, this is a safety issue, and does not affect the wires ability to carry current.
No comments:
Post a Comment