What gauge wire do I need for my dryer?

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Depending on whether you have an electrical dryer or a gas dryer, the answer will be different. I am going to assume you are in the US, and using an electrical dryer. Then the calculation goes like this:

Assuming you have an electrical dryer, typical power use might be anywhere from 1800 W to 5000 W source. But let's assume the dryer you have is right at the limit of your electrical circuit - that is a 30 A, 240 V dedicated circuit. I will compute the voltage and power drop resulting from using different gages of wire, assuming that current (which is high... more likely the current is somewhere between 8 or 22 A).

Resistance of 220 (round trip!) feet of wire source and associated voltage drop and power loss (assuming 30 A current):

AWG Ohms Drop(V) Power loss 6 0.087 2.61 2.2% 8 0.138 4.14 3.5% 10 0.220 6.60 5.5% 12 0.349 10.47 8.7%

The voltage drop you will get is current times resistance (V = I x R), for example 30 x...

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hi there wonderful world of knowledgeable and helpful masterminds of the sparky arts,

i have a double wall oven going in a kitchen i'm doing, all i can see on the spec sheet is a diafraggm that looks like this =

KW Rating
------------------
240V | 6.8 |
------------------
208V | 5.1 |
------------------
Breaker Size |
------------------
240V | 30 Amps |
------------------
208V | 30 Amps |
------------------

well, ok, it's not a diaphragm. :P *diagram

so the question(s) is(are)...

what gauge wire? i'm going about 40ft from the breaker box. (I assume i just get a double wide lookin 30 Amp breaker and wire up a black and a red to either one and a green/bare to the ground. correct me if i'm wrong. maybe 10 awg?)

also, what's this 208/240 weirdness? do i just do 240 and it's fine? it seems to be telling me either/or, and i've seen some people on here refer to a...

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Use 14 gauge (AWG) copper, oxygen free cord all around. It works well, won't be a problem at your current wattage, you'll never outgrow it, easily found, and can be very reasonable.

Do not purchase expensive "speaker" wire from Best Buy, Radio Shack, retailers or audio stores. Instead, you can find 14 gauge speaker wire online at Monoprice.com (Link below).

If you need speaker wire today, got to your local hardware store or Home Depot/Lowes. Purchase bulk 12 or 14 gauge Lamp or Extension cord by the foot or yard at a great price. You need only care about one thing, make sure cord has a mark or color stripe indicator for one of the two leads, so you can be sure to connect it properly on both ends. Otherwise, it's all copper and made to carry much higher voltages over it than you'll ever use... so no worries. Don't worry about it impacting your signal either, copper wire at lengths used in the home will not be a problem.

Whatever wire you do get, be sure to...

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Selecting the wire gauge is the easiest part : AWG 12 for a 20 amp receptacle or AWG 14 for 15 amps.
Solid wiring is standard for receptacles ( stranded is used in applications where flexibility during or after installation is required). Where will you take power from? Can the circuit you tap carry the additional load? 3 conductor (L1,L0,Ground) BX is the most desirable for indoor wiring at 120v or220v.
Will your receptacle be in a kitchen, a bathroom, or near a good ground? If so it should be a GFCI.Will you be able to identify the the circuit's polarity, and verify ground contiuity?
Even with three conductor BX, you will want to be sure to use bushings between the conductors and the rough edges of the BX, and to connect the fittings securely at the junction boxes. The actual details and skills required to install a receptacle take years to learn. Take the time to browse through a " how- to" book or hire a licensed electrician if you want...

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1

Check with the national and local electrical codes. Make sure you understand all the requirements for wiring a 220-volt outlet.

2

Choose the correct wire size and type for the appliance.

A label should give the amperage rating of the appliance, and this will determine the wire size. An example would be a 20 Amp air conditioner requiring a 12 gauge wire, typically a 3 wire plus ground Romex cable.

Consult the manufacturer's information to discover how much current the appliance will draw. Make sure the wire you use is rated for 20 percent more. Use copper wire only. If you use aluminum wire, you will need to make sure all of the connections are suitable for aluminum.

3

Locate your outlet less than 200 feet (61.0 m) of the panel box. This will prevent a voltage drop that you would have to correct.

4

Determine whether to use 3 conductors or 4 conductors. If you are replacing an older appliance, you may have to convert...

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An often asked question for new wire workers is, "What size gauge do I need?" Wire is sized in gauges. The smaller the gauge (number) the bigger the wire. Below I've listed some of the most commonly used gauges and their uses.

16 gauge: .051 inches, 1.29 millimeters. Very heavy and thick wire. Use with heavy duty tools. Project uses: Wire sculpture, bracelet bases, unsupported shapes, neckwires. 18 gauge: .040" 1.02 millimeters. Medium thick wire. Use with regular jewelry tools. Project uses: Wine charms, clasps, gift wrapping, decorations, wire wrapping beads with large holes, chainmaking.

20 gauge: .032" .81 millimeters. Medium wire. Use with regular jewelry tools. Most base metal headpins and earwires are made from 20-gauge wire. Project uses: A good general-purpose wire for making earwires, headpins, and small wire clasps. Good for wire wrapping most glass beads, colied beads, and eye pins. 22 gauge: .025" .64 millimeters. Medium thin wire. Use...
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Wire Size for a 220 Volt Dryer Circuit | Electrical Wiring Illustrated

I need to relocate my dryer from first floor to basement now I need to setup new outlet for it Could you tell me what size wire I should use, I believe it is by Dave Rongey ©2007-2011 Summary: Electrical wiring for a dryer power cord has a typical 240 Volt electric power cord with 3-wire and 4-wire wiring configurations. and maximum breaker size for an electric water heater? What is the minimum wire size Wiring Diagrams; How To Change a 4 Prong Electric Dryer Power Cord To a 3 Prong Electric

Wire Size for a Dryer Circuit | eHow.com

Installing a new circuit breaker and branch circuit for an electric clothes dryer is not rocket science, but it does take planning What Size Electrical Wire to Install This is a step-by-step guide to installing an electric clothes dryer You will need to buy the wire. Check the manufacturers suggestions on the size, but size 8 with 4 Wire a Dryer Outlet,...

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[Summary]Basic Electrical for wiring for house,wire types sizes, and fire alarms Wire Types and Sizing When wiring a house, there are many types wire to choose from, some copper, others aluminum, some rated for outdoors, others indoors. In general however, th

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Basic Electrical for wiring for house,wire types sizes, and fire alarms

Wire Types and Sizing

When wiring a house, there are many types wire to choose from, some copper, others aluminum, some rated for outdoors, others indoors. In general however, there are only a couple varieties used for wiring a residential home.



Electrical wire sizes & Diameters: table of Electrical Service Entry Cable Sizes & Ampacity


Electrical Service Entry Cable Sizes, Branch Circuit Electrical Wire Sizes & Ampacity Tables

SE CABLE SIZES vs AMPS - CONTENTS: Table of Electrical Service Entry Cable Sizes, Electrical Wire Diameters & Ampacity...

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The silicone-insulated wire at ME is more expensive, but good quality. The insulation seems more durable than the cheaper options.

I also have some wire from Fasttech. Although not bad, the insulation is softer and cost me an expensive multi-meter fuse (red wire got nicked going though the pill, not a good idea to do the first power up with high-current cells.)

Teflon wire is actually thinner than silicone wire of the same gauge and can take higher temperature. The insulation is also much tougher, but the wires are much less flexible.

22 awg is rated for 7 A to 13 A for a single conductor, depending on the temperature rating of the insulation and application. (But the wire will get hot if you try this!). Resistance is about 0.005 ohm for 10 cm. Above 4 or 5 A I would go to a bigger...

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Wire gauge refers to the diameter of a wire. The higher the gauge number, the thinner the wire. There are two standards: American Wire Gauge (AWG) and Metric Wire Gauge (MWG). Depending on its purpose, a thin wire gauge might be fine, but for other jobs, a thicker wire will do a better job and protect against shorts from melting caused by overheating. Since using the wrong size of wire can lead to electrical fires, all wiring must be legally inspected and approved during new construction or remodeling.

In the United States many building codes allow for #14 gauge wire throughout the house for branch circuits (lighting), but these codes represent the minimal safety standard. Many electricians recommend #12 AWG instead. The thicker wire has lower resistance and can result in less light flicker and steadier power with minimal heat loss. The thicker wire is also rated for 20-amp fuses, while lighting fuses are typically only 15-amps.

Lighting and appliance fuses are...

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14 Gauge Dog Fence Wire vs. 16 Gauge Wire vs. 18 Gauge Wire vs. 20 Gauge Wire (thick vs. thin)

Most DIY Dog Fence Systems include a reel of 20 gauge wire. But, most professionally installed systems use a thicker 14 gauge wire. Why the difference?

Fewer Wire Breaks

The thicker the wire the more resilient and the less likely you are to get a wire break. For example, the thickest wire (14 gauge) is around 6 times stronger than the standard 20 gauge wire. This thicker wire also contains a thicker jacket, making it impervious to all but the strongest impacts.

When a dog fence is being professionally installed, we will usually use an industrial trencher, that is very tough on the wire. This makes using the thicker gauge of wire almost mandatory.

There are however disadvantages. Firstly, thicker wire is harder to work with. Thinner wire is is more flexible and easier to get into place. Second, the thicker wire is more expensive. The thicker wire uses 4...

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Quote:

Well, sort of. There are times where this rule of thumb does not apply, but a DIY forum is not the place for that.

Quote:

Well, considering that 30A is very much "underkill" due to 240.4(D), even after quite a bit of adjustment the ampacity of #10 would still be 30A.

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Yeah, it adds up to pennies. The amount of efficiency in oversizing wire is negligible in almost any residential application.

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Where do you find this rule? I don't think you will since it is not true

at all

. Do the math for 24A, @120v, for the 80' in the OP's example. Voltage drop at 120v is quite severe. VD at 120v is roughly four times greater than at 240v.

Considering that the OP's installation could very well see 20+ amps on a regular basis upsizing the wire is a good...

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Last updated on September 9th, 2017

Back in the olden days, thermostats were simple on/off devices that didn’t need their own continuous power supply. Modern thermostats with Wi-Fi and backlit display, by contrast, need a steady supply of juice.

The C wire, or “common wire” enables the continuous flow of 24 VAC power to the thermostat.

Technically speaking, power flows from the R (red) wire, but not continuously (not on its own, anyway). To make it continuous requires a common wire to complete the circuit. When the circuit is complete, 24V energy will flow continuously.

If you’re considering purchasing a smart thermostat, you’re probably thinking of doing the installation yourself. After all, if you’re able to change a light switch or receptacle, you’re skilled enough to install a smart thermostat – assuming your system already has a C wire.

If your system has a C-wire, it might be in use or just tucked away behind your current...

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Hi I am new here and need some help with my sub panel, I've had an older retired electrician run a line to my garage and I have questions about the setup.

what he added was a 50 amp 240 breaker to the main panel in house and exiting the main is 1 inch conduit to a weather head and 3, 8 gauge copper separately sheathed cables running to my detached garage to a sub panel that has its bonding strap attached to the ground neutral bar ( only one ground/neutral bar in this box).

when I started to do research on adding circuits to this sub panel I have read that I need to add an additional wire to seperate the ground and neutral back to the main panel, so now I am asking what should I do to this setup and how I can add the 4th wire to this box.

can I just run a green sheathed wire to the main from the sub and be all set and tape or tie wrap this wire to the three wires already ran or runa ground between the attached to the conduit weather heads to each other and...

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