# What Gauge Wire Should I Use?

## What gauge wire should I use for speakers?

16-gauge wireGenerally, for short speaker wire runs, a 16-gauge wire is sufficient.

However, for longer speaker wire runs (to another room, for example), it is better to use a thicker, lower-gauge wire..

## What happens if wire gauge is too big?

using larger wire will not hurt anything or cause any overload. The larger wire will cost more, the pathway or where it has to fit, and the physical size of the connecting means (ie. the size of terminal or clamp it has to fit in), will all be determining factors in just how big is too big.

## Can I use higher gauge wire?

You can always use a larger gauge than is required So if you have a 15A circuit, you are required to use least 14 AWG wire. However if you want to use #12, #8, 4/0… whatever, as long as your wiring methods are proper.

## How far can you run a 12 gauge wire?

The following are the maximum lengths of cable you can use while still maintaining a 3 percent voltage drop for the given wire size (AWG) and circuit voltage….For 120-volt circuits:14 AWG50 feet12 AWG60 feet10 AWG64 feet8 AWG76 feet6 AWG94 feetOct 20, 2019

## Can I mix 12 gauge and 14 gauge wire?

Anyway, the first subject is a bit touchy because it makes it difficult to perform an inspection when all of the wires coming into the panel are 12 but many of the circuits have 14 in them too. There is nothing against code mixing wire size for these circuits as long as the OCPD matches the smallest wire.

## How many outlets can you put on 14 gauge wire?

14–2 wire is allowed for a 15 Amp circuit, and at 120 Volts, 15 Amps x 120 volts = 1800 volt-amperes. So that would allow ten (10) receptacles, you would probably derate that to eight (8) for an 80% safety factor.

## What thickness is 20 gauge wire?

Conveniently determine the diameter, in inches or millimeters, of wire gauges from 10 to 38 gauge….Wire Gauge to Inches and Millimeters Conversion.GaugeInchesMillimeters170.0451.14180.041.02190.0360.91200.0320.8125 more rows

## What is 20 gauge in MM?

Home > TECHNICAL RESOURCES > Gauge = mm = Inch Conversion ChartB&S GaugeMillimeter (mm)Inch (decimal)171.1490.045181.0240.040190.9120.036200.8120.03224 more rows

## What gauge wire should I use for 12v?

Maximum current – amps – through a 12V circuit – related to size (AWG) and length of wireAmerican Wire Gauge (#AWG)Length (feet)Maximum Current (amps)1516820148251468 more rows

## Can I use 14 gauge wire for outlets?

Yes you may use No. 14 AWG Cu wire for outlets but the Circuit Breaker to protect the circuit should be only 15A. Do not use 20A Circuit Breaker for this circuit. … The circuit should not have more than 10 receptacles.

## What happens if wire gauge is too small?

The more power and equipment you have, the larger the wire needs to be. … If too small of a size is used, the wire could melt because of the large amount of current flowing through it compared to how much the cables can handle. The smaller the wire diameter, the higher the resistance there will be to the flow of energy.

## Does gauge of wire matter?

Unfortunately, size does matter. The most basic explanation on why wire gauge matters is because the thinner a wire is (higher gauge) the more resistance there will be to the flow of current. … AWG stands for American Wire Gauge – the thicker a conductor is the lower its gauge number will be.

## What is bigger a 20 or 18 gauge?

Most often, a 20 or 18 gauge is used. The smallest gauge is typically considered something along the lines of a 22 gauge, which is very tiny. Gauges get larger with decreasing number (i.e. a size 00G is massive compared to a 20 gauge). with an 18 gauge.

## Should I use 12 or 14 gauge wire?

As long as you don’t put too many lights on the light circuit, you can usually control that circuit with a 15-amp breaker, as well as wire it with a 14-gauge wire. … On the other hand, an outlet circuit controlled by a 20-amp breaker requires a 12-gauge wire.

## Can I use 12 gauge wire on a 30 amp circuit?

No. 12 gauge wire is rated for a maximum of 20 amps. You need a minimum of 10AWG wire for 30 amps.

## How many watts can 12 gauge wire handle?

Basic wire sizing guide for US 120 and 240 voltsGaugeAmpsWatts#14121440#12161920#10242880#83238403 more rows

## How do I know what gauge wire to use?

To calculate the gauge of stranded wire, you’ll need to double the diameter. So, if you’ve measured a wire’s diameter to be 0.005 inches (0.127 mm), multiply this value by itself. The result will be 0.000025 in (0.000635 mm). Multiply the result by the number of strands in the wire.

## What is 20 gauge wire used for?

22-20 gauge are good all-purpose, versatile wire sizes, thin enough to be able to string on most beads. If you use half-hard wire (or work-harden softer wire), these gauges are also sturdy enough to hold their shape for making handmade chain, ear wires, eye pins, jump rings, and lightweight clasps.

## Is Thicker gauge speaker wire better?

Thicker wires are better: It’s true that for long runs, thicker wires are better at reducing the effects of resistance. But for most set ups (those with speakers within 100 ft of the amplifier), 16-gauge lamp cord is fine. For speakers 100 to 200 ft. from the amp, experts suggest use 14 gauge.

## Is it OK to oversize wire?

Yes, you can oversize a wire. You can use #12 on a 15a circuit or #10 on a 20a circuit. … If you feel safer with # 12 on a bedroom circuit, then you might as put it on a 20a breaker. You will have more ampacity, more efficient.

## What is 14 gauge wire used for?

Why Wire Gauge Is ImportantWire UseRated AmpacityWire GaugeLow-voltage lighting and lamp cords10 amps18-gaugeExtension cords (light-duty)13 amps16-gaugeLight fixtures, lamps, lighting circuits15 amps14-gaugeKitchen, bathroom, and outdoor receptacles (outlets); 120-volt air conditioners20 amps12-gauge4 more rows