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Hello Al, I have the exact same experience with my physics professors. But, in general, people use ‘wattage’ and ‘amperage’ and we try to explain this to people who don’t have university degrees in physics, engineering, and so on. Hopefully, if a college professor reads this, he or she won’t berate us on using these people-friendly terms. Reply
In this system, 0000 AWG indicates a wire diameter of 0.46 inches, and 36 AWG indicates a wire size of 0.005 inches. There are 39-gauge sizes between these two sizes which you can get through logarithmic calculations. The ratio of different sizes is 1 to 92 in diameter. So, you can say that each AWG step is around the 39th root of 92, which is approx. 1.12293 times changes in diameter. If you’re looking for wire size for a 10 amp circuit (this can be for a 15 amp 120-volt circuit, breaker, battery output), you will need an AWG with at least 15 amp rated ampacity at 75°C. What is 9 gauge wire used for? It is less used for electrical purposes. Instead, we usually associate these kinds of wires with the 9 AWG gauge: Wire Gauges run low to high - this means that the smaller a gauge number, the larger it is in mm. Conversely, a large number in AWG equates to a very small number of mm. Hello Josh, that’s a great insight, thank you for sharing it. We will try to make it evident that when used continuously, you have to account for the 1.25x factor when calculating the amps. ReplyAWG 5 gauge wire is one of the less used wires. We rarely do use it but when we do it’s useful to know the dimensions of 5 gauge wire in mm (diameter) and mm2 (cross-section). How many amps can a 1/0 gauge wire handle? At 75°C, the 1/0 copper wire ampacity is 150 amps; essentially, the 1/0 W wire is a 150 amp wire size. At 60°C, it can handle up to 125 amps, and it can handle up to 170 amps at higher temperatures (90°C).
With 130 amps capacity, 1 gauge wire can serve as a battery cable, welding cable, or any other power cable that requires a good 100 amps of electric current. AWG wire can be made out of several materials, including copper, aluminum, stainless steel, and even silicon. Well, we have quite an array of uses for a 14 AWG wire. You have several kinds of 14 gauge copper wires for different applications, including: The gauge is ten times higher than the diameter in millimeters in the metric gauge scale, meaning a 50-gauge metric wire is 5mm in diameter. You must know that in the AWG system, the diameter increases with the decrease in gauge, but this does not apply to the metric gauge scale. Metric size wires are mentioned in millimeters instead of metric gauges to avoid confusion. AWG to load current carrying capacity AWG holds importance for wires which carry electrical current like home or business wiring, high power wires in automobiles, extension cords, etc. Using too small a wire, i.e., a very high AWG, can melt, overheat, and catch fire. Thus, to ensure safe electrical wiring, you must consider the wire’s current carrying capacity.If you express the cross-section of a 12 gauge wire in mm2, you get 3.31 mm2. These diameter and cross-section figures are very useful because they determine how many amps can a 12 gauge wire handle. gauge wire can be used for a number of different electrical applications. That’s why we also referred to it as: With this information, we can determine how many amps will an 80 gauge carry. For everybody wondering if the 8 AWG wire can handle 50 amps, here is the answer: The AWG system primarily describes the size of single-stranded solid wires. However, when there are multiple conductors stranded wires, you can use AWG to get the cross-section of all the strands and then add them together.
gauge wire is commonly referred to as 0 gauge wire (n=0 in the equations in the beginning). This zero gauge wire has a diameter of 8.251 mm. In stranded wires, you usually use three numbers to define their measurements, representing the AWG size of the wire, the strand number, and the American Wire Gauge size of each strand. Because this is only of the only 200+ amp wire sizes it can be used for heavy-duty applications, such as welding or drilling equipment. It’s also the largest battery wire gauge; you can get more than 2,000W power out of a 12V battery, for example.gauge wire is probably the most common 100+ amp amperage wires on the market. It has a total diameter of 6.544 mm. That means that a 2 AWG wire has a full cross-section of 33.6 mm2. You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 20 amps is 14 AWG wire. Table 1 lists the AWG sizes for electrical cables / conductors. In addition to wire size, the table provides values load (current) carrying capacity, resistance and skin effects. The resistances and skin depth noted are for copper conductors. A detailed description of each conductor property is described below Table 1. gauge wire is seldom used in electrical circuits. However, it might come useful in some projects that involve very small electrical power needs. Despite being able to handle 100 amps (with 100 amp ampacity), the 3 AWG wire is more commonly used as a 100 amp wire size.
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