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The AWG tables are for a single, solid and round conductor. The AWG of a stranded wire is determined by the cross-sectional area of the equivalent solid conductor. Because there are also small gaps between the strands, a stranded wire will always have a slightly larger overall diameter than a solid wire with the same AWG. Once you obtain the diameter of a single strand, you have to multiply the diameter by itself. Next, count the number of strands that make up the cable and multiply the squared diameter by the number of strands. The result of this calculation is equivalent to the circular mill’s value of the cable. Once you’ve found the circular mills value, consult an online table to locate its corresponding AWG wire value. Whenever people talk of AWG cables, it is easy to assume that they refer to a specific type of electrical cable. As I mentioned earlier, AWG is an acronym that stands for American Wire Gauge. Essentially, it is a measurement standard that denotes the size of every electrical wire. A wire is a single conductor, whereas a cable is a cluster of conductors that run in parallel and are warped or merged to form a solitary casing under an insulation material. It is easy to assume that a cable AWG refers to the size of a cable. That is a wrong assumption because the AWG in cable indicates the size of the conductor material, excluding the cable’s insulation.
As I have indicated severally, AWG is an acronym that stands for American Wire Gauge. Essentially, it is a universal measurement standard that denotes the sizes of different electrical cables. I am certain most of us have come across the phrase ‘AWG cable size’ at one point or another. Do you understand what it means?
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Electric resistance in wire made of Copper, Aluminum, Brass, Constantan, Nichrome, Platinum, Silver or Tungsten. So, an AWG cable is any electrical cable whose measurement is denoted using the American Wire Gauge measurement standard. Perhaps it is easier to comprehend if I flip the wording and say, cable AWG. When I put it that way, it becomes less complex, doesn’t it? A cable wire gauge is one of the most critical factors you have to consider when choosing an electrical cable for a specific wiring application. For all intense and purposes, the American Wire Gauge (AWG) defines the amount of electric current that a particular electrical cable can carry without damage. Don’t you think this is important? American Wire Gauge ( AWG) is a logarithmic stepped standardized wire gauge system used since 1857, predominantly in North America, for the diameters of round, solid, nonferrous, electrically conducting wire. Dimensions of the wires are given in ASTM standard B 258. [1] The cross-sectional area of each gauge is an important factor for determining its current-carrying capacity. AWG is also commonly used to specify body piercing jewelry sizes (especially smaller sizes), even when the material is not metallic. [2] Formulae [ edit ]
AWG cable is one of the most common phrases in electrical cable terminologies. Most people mistakenly assume that the term refers to a specific electrical cable. Contrary to popular belief, this phrase is applicable across all divides. AWG is an acronym that stands for American Wire Gauge. What is American Wire Gauge (AWG)? Generally speaking, AWG is a measurement specification of sorts that gives specific dimensions for electrical wires. By definition, No. 36 AWG is 0.005 inches in diameter, and No.0000 is 0.46inches in diameter. The ratio of these diameters is 1:92, and there are 40 gauge sizes from No.36 to No.0000, or 39 steps. Because each successive gauge number increases cross sectional area by a constant multiple, diameters vary geometrically. Any two successive gauges (e.g., A and B ) have diameters whose ratio (dia. B ÷ dia. A) is 92 39 {\displaystyle {\sqrt[{39}]{92}}} (approximately 1.12293), while for gauges two steps apart (e.g., A, B, and C), the ratio of the C to A is about 1.12293 2 ≈ 1.26098.It is best to use a 12 gauge or a 14 gauge cable for classic household wiring applications. As I mentioned earlier, cable diameter decreases with each increase in the cable’s gauge. Higher gauge wires have thin wires and smaller diameters compared to lower gauge wires. When carrying out installations over extended distances, it would be best to use a 24 AWG cable or a 26 AWG cable. In most instances, people confuse a 12 AWG wire and a 14 AWG wire even though they are not similar. As I mentioned earlier, as the American wire gauge number decreases, the size of the actual cable increases. So, a 12 gauge wire is bigger than a 14 gauge wire. It is also important to note that the AWG cable current rating of a 12 gauge wire is higher than that of a 14 gauge wire. 4. What is AWG in cable size? Failure to choose a cable that can withstand the amount of current passing through it will culminate in a disaster. This post will guide you through some critical facts that you need to know about AWG cable. More specifically, it covers information concerning the size of a wire and its role in determining the ideal cable for any specific project. 1. What is AWG cable? in millimeters (mm) is equal to 0.127mm times 92 raised to the power of 36 minus gauge number n, divided by 39:
Increasing gauge numbers denote logarithmically decreasing wire diameters, which is similar to many other non-metric gauging systems such as British Standard Wire Gauge (SWG). However, AWG is dissimilar to IEC 60228, the metric wire-size standard used in most parts of the world, based directly on the wire cross-section area (in square millimetres, mm²). The AWG originated in the number of drawing operations used to produce a given gauge of wire. Very fine wire (for example, 30gauge) required more passes through the drawing dies than 0gauge wire did. Manufacturers of wire formerly had proprietary wire gauge systems; the development of standardized wire gauges rationalized selection of wire for a particular purpose.
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The most common method of referring to conductor sizes uses the cross-sectional area, expressed in mm². The following AWG metric conversion table converts AWG to mm and inches, and also lists the cross sectional area (mm2). AWG Metric Conversion Chart (AWG to mm) A vast proportion of cable manufacturers label their gauge measurements in American Wire Gauge (AWG). Considering that a cable’s gauge has significant implications on whether it is safe to use in a particular application, you ought to know the gauge measurements of any wire you intend to use. In most instances, you don’t have to measure a cable’s AWG. Most reliable cable manufacturers take it upon themselves to indicate AWG cable measurements on the cable’s outer insulation. All you need to do is look for the measurements on the cable’s insulation, and you will be good to go. But what do you do when the manufacturer does not indicate the AWG cable measurements? When dealing with a solid-core wire, you can easily obtain the gauge measurements by measuring the conductor’s diameter. It is a bit more complex to get the cable AWG measurements of a stranded cable. Assuming you intend to quantify the size of a 12 AWG 4 conductor cable with stranded wires, you have to measure the diameter of a single strand first. Logically, every electrical wire and cable has a specific dimension. This dimension is generally denoted in the American Wire Gauge measurement standard. So, is it not accurate to say that each electrical cable in existence is an AWG electrical wire? Some people might find this to be overwhelmingly confusing. I understand why most people face difficulty comprehending the notion that each electrical cable is an AWG cable. It is important to use electrical cables that can sustain the electrical power passing through it for every electrical need. Wire gauges come in different standard sizes, each designed to withstand a specific amount of electrical current. Sensibly, some wire gauges are commonly used compared to others. A 12 AWG wire is one of the most frequently used electrical wires.
When calclating AWG from diameter or cross sectional area, the diameter and cross sectional area are rounded to the nearest AWG equivalent values. Wire diameter calculation
While the AWG is essentially identical to the Brown & Sharpe (B&S) sheet metal gauge, the B&S gauge was designed for use with sheet metals as its name suggests. These are functionally interchangeable but the use of B&S in relation to wire gauges, rather than sheet metal gauges, is technically improper. Generally speaking, American Wire Gauge sizes range from 0000 to 40 AWG. Most people often find AWG measurements to be pretty confusing. Typically, the size of any object tends to increase as the number representing its dimensions increases. However, this is not the case with any AWG power cable. As the American wire gauge number decreases, the size of the actual cable increases. For instance, a 24 AWG cable is smaller and thinner than a 6 AWG cable. Do you get the idea? d n = 0.005 i n c h × 92 ( 36 − n ) / 39 = 0.127 m m × 92 ( 36 − n ) / 39 {\displaystyle d_{n}=0.005~\mathrm {inch} \times 92 If this AWG metric calculator doesn't provide you with the information you need, please get in touch with the technical experts of The Cable Lab who will be pleased to answer your questions or calculate the appropriate AWG/metric size for your installation.
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