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30 gauge wire is much "thinner" than 10 gauge wire. Hence, if you are using 10 gauge for an application requiring only 30 gauge, it will more than handle any current flow. However, if the application requires 10 gauge wire you cannot use 30 gauge wire.

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12y ago
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6mo ago

It is not recommended to splice two wires of significantly different gauges together as it can lead to overheating and potential fire hazards. It is best to use appropriate connectors or terminals to join wires of different gauges.

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15y ago

Yes, but the circuit amperage loading has to be equal to the amperage capacity of the smallest wire which is the #20.

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Q: Can you splice a 10 ga wire to a 20 ga wire?
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What wire size is required for a branch circuit with 10 outlets and a 15 amp breaker?

With a 15 A breaker you need 14 Gauge wire. Normally you would only put 8 outlets on a 15 A circuit. If you have the option you shoudl consider a 20 A circuit, use 20A receptacles and 12 gauge wire. Comment: The question was on a homeowners electrical exam. My answer was also 14 gauge however, the tester said the answer was 12 ga. I thought maybe there was something special about the 10 outlets. For example, 10x180 VA per outlet/120V = 15 A which is right at the limit for 14 ga but would be 75% for the 12 ga wire.


What size of wire is needed to run a 20 amp 2 pole breaker for a 220 volt window AC unit?

For a 20 amp 2 pole breaker at 220 volts, you'd need a 12-gauge wire for a maximum run of 100 feet. If the run is longer than 100 feet, consider using a thicker 10-gauge wire to account for voltage drop. This wire size ensures safe and efficient operation for your window AC unit.


Can you connect a 8 gauge wire directly to a 10 or 12 gauge wire The appliance only requires 10 and 12 gauge but there is already 8 gauge running half way?

It is not recommended to connect wires of different gauges together, as this can create a safety hazard. It is best to use a connector or junction box to transition from the 8 gauge wire to the 10 or 12 gauge wire to ensure proper electrical connection and safety.


What size breaker is used with 10 wire?

For a 10-gauge wire, a 30-amp breaker is typically used for general household wiring. It's always recommended to consult a licensed electrician or local building codes to ensure the correct breaker size for your specific situation.


Which wire has a greater diameter a 22 awg or a 12 awg?

12 gauge is thicker. Household wires in the walls are mostly ga 14. Majority of wires in the car wiring are ga 16, except control wires which are thinner, like ga 18 or 20, and main battery wires wich are very thick, probably ga 4 or 6.

Related questions

How many amps is a 16 gauge wire 12 volts rated for?

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Can you put a 20 amp breaker at 16 ga wire?

For most apps, the max amps for 16 ga is 25A, so yes.


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What wire size is required for a branch circuit with 10 outlets and a 15 amp breaker?

With a 15 A breaker you need 14 Gauge wire. Normally you would only put 8 outlets on a 15 A circuit. If you have the option you shoudl consider a 20 A circuit, use 20A receptacles and 12 gauge wire. Comment: The question was on a homeowners electrical exam. My answer was also 14 gauge however, the tester said the answer was 12 ga. I thought maybe there was something special about the 10 outlets. For example, 10x180 VA per outlet/120V = 15 A which is right at the limit for 14 ga but would be 75% for the 12 ga wire.


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Seinaru Kane ga Hibiku Yoru was created on 1999-10-20.


What size of wire is needed to run a 20 amp 2 pole breaker for a 220 volt window AC unit?

For a 20 amp 2 pole breaker at 220 volts, you'd need a 12-gauge wire for a maximum run of 100 feet. If the run is longer than 100 feet, consider using a thicker 10-gauge wire to account for voltage drop. This wire size ensures safe and efficient operation for your window AC unit.


Can a 480V a 12 ga wire safetly carry 4 x as much power as it would at 120V?

#12 wire will carry about 20 amp 20 X 480 volts = 9600 watts 20 X 120 volts = 2400 watts 4 times.


How do you size wire for a 20kw aug heater for a heat pump?

Using the formula: Amps = Watts/Volts look up the wire size needed in the national electric code book for the amperage of the device. This formula only works for single phase current. If you are using 3 phase, look in the book. In general, 15 Amps or less: 14 Ga Copper wire. 20 Amps or less 12 Ga. 30 Amps or less 10 Ga. Anything more than 30 amps, look it up in the book.


What is the distance between Columbia SC and Athens GA?

165 mi, 2 hours 59 minsI-20 W and GA-10 W


How much does 100 feet of 10 gauge copper weigh?

Depends on the thicknes of the wire. About three pounds, according to this site: http://www.rjleahy.com/Store/wire/cwi.htm See second chart on left... 10 ga copper wire is about 33 feet per pound.


Can you safely connect a 14 gauge 3 wire heater to a extension cord rated 16 gauge 3 wire?

16 Ga wire is smaller than 14 Ga. The answer is absolutely NO!


On the forenza car low headlights both not working what kind problem could be?

There is a recall on 2004-2005 Headlights due to faulty wiring overheating and killing power to headlights while the high beams will still work. Light Blue wire from headlight relay to splice 102 behind cluster.Splice is bad.Light blue wire continues on from there to combination switch at the column.It is not necessary to repair the actual wire,just splice in a 16 ga wire at both end which has been passed through the firewall through a hole punched in a grommet which exists in the firewall just to 10 oclock of the brake booster as seen from the engine side of the wall.The recall is of little value,the economy shut down most of the GM Daewoo/Suzuki dealers in my area,I suspect it is universal.