![]() The attic has vaulted ceilings well over 6.5' and is currently temp controlled. I have an existing 3" PVC tube up to the attic which is 30' away (coaxial, romex). The old stove line is coming off a 40amp double pole breaker in the main box. The subpanel is 100amp, 6 space (12 circuit, main lug, indoor). I want to use it to install a subpanel in my attic. For ex ample, if you are using a 2-inch wire for a light fixture, then you will need a wire that is at least 2 inches in diameter.I have an old 220 (8/3 stranded with grnd) line off the main box from a stove that I don't use anymore (we have gas now). The wire diameter is determined by the size of the receptacle. It is not recommended for use in plumbing, as it is too small to handle the amount of current flowing through it.Ī 2″ or 3″ size wire, on the other hand, is designed to be used in electrical applications, such as lighting, lighting fixtures, and other electrical equipment. A 1″ wire has a diameter of 1.5″ (3/8″) and is used for electrical wiring. If you want to run a 30 amp load, you’ll need to use a larger gauge wire. According to the National Electrcal Code, #8 wire is rated for 50 Amps. Can I use 8-gauge wire on a 30 amp circuit? ![]() You will also need to consider the size of your circuit and how much power it will consume. If you are going to run a lot of power, you may want to invest in a power supply that can handle the power you will be using.įor ex ample, if you intend on running a 50 amp circuit, then you would need a 500-watt supply. 8- gauge wire should be used if you plan on going over 150 feet. How far can you run 8-gauge wire for 30 amps?įor short runs, 10- gauge wire is usually used. This will allow you to plug the cord directly into the outlet in your house, without having to run it through a hole in a wall or a conduit. Make sure the end of the pipe is at least 1″ above the floor, so that you can plug it into a receptacle in the wall. I used a 1-1/8″ pipe, which is about the right length for the job. You can use a length of 1/2″ or 3/4″ PVC pipe for this purpose, but you will have to cut it to the correct length. If you want to use an extension cord, make sure it is not too long, and that it does not interfere with the wiring inside the house. Without opening the box, the junction box cover must remain accessible. ![]() You have to make splices inside a junction box if you want to extend the cable. The 8/3 cable has 4 wires in total and will suffice for 40A, the breaker you already have there. ![]() However, this current is not enough to power a light bulb, so we would need to use a higher current source to get the same amount of light. Therefore, if we were to connect a 10kΩ resistor to this wire, it would have a voltage of 10V, which means that it can carry 10A of current. This is because the voltage across the capacitor is equal to the resistance divided by the value of the resistor. If we connect the wire to a 5V power supply, the current will be 1A. For ex ample, let’s say we have an 8- gauge wire with a resistance of 1 ohm and a capacitance of 0.1uF. Since 8 gauge wires can capably carry 40 amperes, we can determine the maximum current that can be carried by a single wire. What size breaker do I need for 8 3 wire? For ex ample, a 1/4″ gauge wire will measure 1.5″ in diameter from center to center. The gauge is measured from the center of one end to the other end. Gauge is a measure of the diameter of a wire. It is available in a variety of diameters and thicknesses. One of the most popular single conductor copper wire is the #8 gauge. That’s a lot of extra water to carry around. If you were using an 11.1 volt battery and wanted to discharge it down to 9.2 volts and then recharge it back up to 10.3 volts using 5 amps, that would require a 9-gal. If you are using a 12-volt battery, the voltage rating of the battery will determine how much current you will be able to draw.įor ex ample, if you have a battery rated at 12 volts, and you want to charge it to 12.5 volts with a 5- amp circuit, then you would need to use a 6- or 7-ga. You need more than a 4- gauge wire to handle the load.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |