12 AWG. You can run several hundred feet.
12 gauge underground wire or if you think you will ever add any devices to this circuit use 10 gauge.
A #8 copper wire with an insulation factor of 75 or 90 degrees C is rated at 45 amps.
It depends upon the length of the circuit, but for 50 feet or less a 10 gauge wire should be fine. A short length (15 feet), you could use 12 gauge. If you double the length to 100 feet, you should use 8 gauge. A rule of thumb is to drop down a gauge for every length that is doubled. There are wire size charts available on the internet. Some can be conservative such as recommending #8 for 50 ft or less at 30 amps. It is better to be conservative than to run too much amperage on a smaller wire that can cause a fire. As a general rule, 12ga wire can be used in house circuits for 20amps or less. 16ga wire can be used for 15 amps or less such as lighting circuits. That is considering lengths of less than 100 feet.
14-3 Is the standard wire use for residental smoke detectors.
4 gauge
This is a voltage drop question. To answer this question a voltage must be stated.
The maximum distance a 12 gauge electrical wire can run depends on the voltage and amperage of the circuit it is serving. In a typical residential circuit with 120 volts and 20 amperes, a 12 gauge wire can run up to 60 feet before voltage drop and overheating become concerns. It is always best to consult local electrical codes and standards for specific guidance on wire length limitations.
For a 1200-watt amplifier, the appropriate gauge of speaker wire typically depends on the length of the wire run. For runs up to 50 feet, 12-gauge wire is generally recommended to handle the power without significant loss. If the run exceeds 50 feet, consider using 10-gauge wire to ensure optimal performance and minimize voltage drop. Always consult a wire gauge chart for specific applications to ensure safety and efficiency.
12 AWG. You can run several hundred feet.
12 gauge underground wire or if you think you will ever add any devices to this circuit use 10 gauge.
This is a voltage drop question. To answer this question a voltage must be stated.
The size of wire needed for a trolling motor depends on the motor's maximum amperage draw and the length of the wire run. A general guideline for a 12V trolling motor is 6-gauge wire for runs up to 10 feet, 4-gauge wire for runs up to 20 feet, and 2-gauge wire for runs over 20 feet to minimize voltage drop and ensure proper performance. Be sure to consult the manufacturer's recommendations for your specific trolling motor.
The 200 amp service wire size chart provides information on the recommended wire size to use for a 200 amp electrical service. This chart helps determine the appropriate wire gauge based on factors like the length of the wire run and the type of material being used.
No, you can never mix wire sizes in a circuit.
A 120-volt water heater should not be run over a 14-gauge wire at 300 feet. The voltage drop over such a long distance would be significant, potentially causing the water heater to not function properly or even become a safety hazard. It is recommended to use a larger gauge wire or locate the heater closer to the power source.
For a 40 amp 220 volt circuit run 60 feet in a residence, it is recommended to use a #8 AWG copper wire for the wiring. This will ensure that you have a safe and efficient electrical connection for your circuit.