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20M UL 2547 28/26/24, Multi Core Control Cable Copper Wire Shielded Audio Cable Headphone Cable Signal Wire-In Wires & Cables From Lights & Lighting On - A trendy cord gauge. From wikipedia, the free encyclopedia american twine gauge (awg), additionally called the brown & sharpe twine gauge, is a standardized cord gauge device used for the reason that 1857 predominantly within the u.S. For the diameters of spherical, stable, nonferrous, electrically undertaking wire.  the pass-sectional region of every gauge is an important issue for determining its modern-day-sporting capacity. The steel enterprise uses distinctive twine gauges (for example, w&m wire gauge or us metal cord gauge, or music wire gauge). The table below does no longer practice to metal cord. Increasing gauge numbers give reducing cord diameters, which is much like many other non-metric gauging systems. This gauge device originated in the the variety of drawing operations used to produce a given gauge of wire. Very best wire (for example, 30 gauge) requires greater passes via the drawing dies than does 0 gauge cord. Manufacturers of cord previously had proprietary cord gauge systems; the development of standardized twine gauges rationalized choice of wire for a specific motive. The awg tables are for a single, solid, round conductor. The awg of a stranded wire is determined by means of the full move-sectional vicinity of the conductor, which determines its cutting-edge-wearing ability and electrical resistance. Because there also are small gaps between the strands, a stranded twine will continually have a slightly large ordinary diameter than a strong cord with the identical awg. The awg length is one of the critical specifications which are printed on statistics cables. For example, an awg of 24 is common for network cables consisting of a category 5 utp, and an awg of 26 is the norm for serial ata cables. Awg is likewise typically used to specify frame piercing earrings sizes, specifically smaller sizes.  contents 1 method 1.1 policies of thumb 2 table of awg cord sizes 3 pronunciation 4 references 5 see additionally 6 external links method through definition, no. 36 awg is zero.0.5 inches in diameter, and no. 0000 is 0.Forty six inches in diameter. The ratio of /american_wire_gauge 1 of 6 eleven/11/2008 eight:forty five am those diameters is ninety two, and there are 40 gauge sizes from no. 36 to no. 0000, or 39 steps. The usage of this common ratio, twine gauge sizes range geometrically in step with the subsequent formulation: the diameter of a no. N awg cord is or the gauge can be calculated from the diameter the use of  and the cross-segment vicinity is . Sizes with a couple of zeros are successively large than no. 0 and can be denoted the use of "variety of zeros/zero", as an instance 4/zero for 0000. For an m/zero awg twine, use n = −(m−1) = 1−m within the above formulas. As an example, for no. 0000 or 4/zero, use n = −three. The astm b 258-02 standard defines the ratio between successive sizes to be the thirty ninth root of ninety two, or about 1.1229322.  astm b 258-02 also dictates that wire diameters need to be tabulated without a extra than four large figures, with a decision of no greater than 0.0001 inches (zero.1 mils) for wires large than no. 44 awg, and 0.00001 inches (zero.01 mils) for wires no. 45 awg and smaller. Policies of thumb the sixth strength of this ratio is very near 2,  which ends up in the subsequent guidelines of thumb: whilst the diameter of a cord is doubled, the awg will decrease with the aid of 6. (E.G. No. 2 awg is about two times the diameter of no. Eight awg.) Whilst the area of a wire is doubled, the awg will decrease by using 3. (E.G. Two no. 14 awg wires have about the equal cross-sectional location as a unmarried no. 11 awg cord.) Additionally, a decrease of ten gauge numbers, as an example from no. 10 to one/0, multiplies the region and weight by using about 10 and decreases the resistance with the aid of approximately 10. Table of awg wire sizes the desk under indicates various statistics which includes both the resistance of the numerous cord gauges and the allowable modern (ampacity) based totally on plastic insulation. The diameter statistics inside the table applies to stable wires. Stranded wires are calculated through calculating the equivalent go sectional copper area. The table below assumes dc, or ac frequencies same to or much less than 60 hz, and does not take pores and skin effect under consideration. Turns of twine is on a great-case state of affairs when winding tightly packed coils with out a insulation. /American_wire_gauge 2 of 6 eleven/eleven/2008 eight:forty five am awg diameter turns of cord vicinity copper resistance  nec copper twine ampacity with 60/75/ ninety°c insulation (a)  approximate stranded metric equivalents (inch) (mm) (in step with inch) (according to cm) (kcmil) (mm²) (ω/km) (ω/kft) 0000 (four/zero) 0.4600 11.684 2.17 0.856 212 107 zero.1608 0.04901 195 / 230 / 260 000 (3/0) zero.4096 10.404 2.44 zero.961 168 eighty five.0 zero.2028 zero.06180 a hundred sixty five / 2 hundred / 225 00 (2/zero) 0.3648 9.266 2.74 1.08 133 67.Four 0.2557 zero.07793 one hundred forty five / one hundred seventy five / 195 0 (1/zero) zero.3249 eight.252 3.08 1.21 106 fifty three.Five zero.3224 zero.09827 a hundred twenty five / 150 / one hundred seventy 1 0.2893 7.348 3.Forty six 1.36 83.7 42.Four 0.4066 zero.1239 110 / a hundred thirty / 150 2 0.2576 6.544 3.88 1.Fifty three sixty six.Four 33.6 0.5127 zero.1563 ninety five / a hundred and fifteen / one hundred thirty 3 0.2294 5.827 4.36 1.Seventy two fifty two.6 26.7 0.6465 zero.1970 85 / a hundred / a hundred and ten 196/zero.4 four zero.2043 five.189 four.89 1.93 41.7 21.2 zero.8152 0.2485 70 / eighty five / 95 5 zero.1819 four.621 five.50 2.16 33.1 16.Eight 1.028 0.3133 126/0.Four 6 0.1620 4.A hundred and fifteen 6.17 2.Forty three 26.3 thirteen.3 1.296 0.3951 fifty five / 65 / seventy five 7 zero.1443 3.665 6.Ninety three 2.Seventy three 20.Eight 10.5 1.634 0.4982 80/0.4 8 zero.1285 three.264 7.78 three.06 16.Five eight.37 2.061 0.6282 forty / 50 / fifty five nine 0.1144 2.906 8.74 3.44 13.1 6.Sixty three 2.599 zero.7921 84/zero.Three 10 zero.1019 2.588 nine.Eighty one 3.86 10.4 5.26 three.277 0.9989 30 / 35 / 40 eleven zero.0907 2.305 11.Zero four.34 8.23 four.17 four.132 1.260 fifty six/0.3 12 zero.0808 2.053 12.4 4.87 6.53 3.31 five.211 1.588 25 / 25 / 30 (20) 13 zero.0720 1.828 13.Nine 5.47 5.18 2.62 6.571 2.003 50/zero.25 14 zero.0641 1.628 15.6 6.14 four.11 2.08 eight.286 2.525 20 / 20 / 25 (15) 15 0.0571 1.450 17.5 6.Ninety three.26 1.Sixty five 10.Forty five 3.184 30/0.25 16 0.0508 1.291 19.7 7.Seventy five 2.58 1.31 thirteen.17 four.016 — / — / 18 (10) 17 zero.0453 1.One hundred fifty 22.1 8.70 2.05 1.04 16.61 five.064 32/0.2 18 zero.0403 1.024 24.Eight 9.77 1.Sixty two zero.823 20.95 6.385 — / — / 14 (7) 24/0.2 19 0.0359 zero.912 27.9 11.Zero 1.29 0.653 26.Forty two 8.051 /american_wire_gauge three of 6 11/eleven/2008 eight:45 am 20 0.0320 zero.812 31.3 12.3 1.02 zero.518 33.31 10.15 sixteen/zero.2 21 zero.0285 zero.723 35.1 13.8 0.810 zero.410 42.00 12.80 22 0.0253 zero.644 39.Five 15.Five 0.642 0.326 fifty two.Ninety six sixteen.14 7/0.25 23 0.0226 0.573 44.3 17.Four 0.509 0.258 66.79 20.36 24 zero.0201 0.511 49.7 19.6 zero.404 0.205 eighty four.22 25.Sixty seven 1/zero.5, 7/zero.2, 30/zero.1 25 0.0179 0.455 55.Nine 22.0 0.320 0.162 106.2 32.37 26 0.0159 zero.405 62.7 24.7 zero.254 0.129 133.9 40.81 7/zero.15 27 zero.0142 zero.361 70.Four 27.7 0.202 0.102 168.Nine 51.Forty seven 28 zero.0126 zero.321 79.1 31.1 zero.One hundred sixty zero.0810 212.Nine 64.Ninety 29 0.0113 zero.286 88.Eight 35.Zero 0.127 0.0642 268.Five 81.Eighty four 30 0.0100 zero.255 99.7 39.3 zero.A hundred and one zero.0509 338.6 103.2 1/0.25, 7/0.1 31 zero.00893 zero.227 112 44.1 0.0797 zero.0404 426.9 one hundred thirty.1 32 0.00795 zero.202 126 forty nine.Five 0.0632 zero.0320 538.3 164.1 1/zero.2, 7/zero.08 33 0.00708 zero.A hundred and eighty 141 55.6 zero.0501 zero.0254 678.Eight 206.9 34 0.00630 zero.One hundred sixty 159 sixty two.4 zero.0398 zero.0201 856.Zero 260.Nine 35 0.00561 0.143 178 70.1 0.0315 0.0160 1079 329.0 36 0.00500 zero.127 200 seventy eight.7 zero.0250 0.0127 1361 414.Eight 37 0.00445 0.113 225 88.4 0.0198 0.0100 1716 523.1 38 0.00397 zero.One zero one 252 ninety nine.3 zero.0157 zero.00797 2164 659.6 39 0.00353 zero.0897 283 111 0.0125 zero.00632 2729 831.8 40 zero.00314 0.0799 318 a hundred twenty five 0.00989 zero.00501 3441 1049 the "approximate stranded metric equivalents" column lists commonly to be had cables in the format "wide variety of strands / diameter of character strand (mm)" that is the not unusual nomenclature describing cable construction inside an overall cross-sectional location. Some not unusual cables are halfway among two awg sizes. Cables bought in europe are usually classified consistent with the combined cross section of all strands in mm², which may be compared without delay with the area column. In the north american electric industry, conductors large than 4/0 awg are commonly recognized via the area in hundreds of circular mils (kcmil), where 1 kcmil = zero.5067 mm². A circular mil is the area of a wire one mil in diameter. A million round mils is the place of a cylinder with a thousand mil = 1 inch diameter. An older abbreviation for a thousand circular mils is mcm. Outside north america, cord sizes for electrical purposes are generally given as the cross sectional place in rectangular millimeters. Worldwide fashionable manufacturing sizes for conductors in electric cables are defined in iec 60228. Notice that the place in mm² may range extremely from the numbers given inside the desk, relying on variety of strands and many others. Pronunciation /american_wire_gauge 4 of 6 11/11/2008 8:45 am awg is colloquially referred to as gauge and the zeros in big twine sizes are called aught (stated /t/). Twine sized 1 awg is referred to as "one gauge"; in addition, smaller diameters are suggested "x gauge", in which x is the advantageous integer awg quantity. Large cord (#0 and up) is called "one aught", "two aught" and many others, depending on how many zeros are within the awg rating.  references donald g. Fink and h. Wayne beaty, wellknown handbook for electric engineers, eleventh version,mcgraw-hill, the big apple, 1978, isbn 0-07-020974-x, web page 4-18 and desk four-eleven. ^ Astm widespread b 258-02, wellknown specification for fashionable nominal diameters and cross-sectional regions of awg sizes of strong spherical wires used as electric conductors, astm global, 2002 1. ) 2. ^ The logarithm to the base ninety two can be computed the use of another logarithm, inclusive of common or natural logarithm, using log ninety two x = (log x)/(log ninety two). Three. ^ Astm preferred b 258-02, page four 4. ^ The end result is kind of 2.0050, or one-area of 1 percent higher than 2 5. ^ Parent for strong copper cord at sixty eight °f, computed primarily based on a hundred iacs conductivity of 58.0 ms/m, which concurs with more than one resources: mark lund, powerstream inc., American twine gauge desk and awg electric contemporary load , retrieved on 2 may also 2008 (despite the fact that the feet/m conversion seems barely faulty) ) , 2006, even though information from there for gauges 35 and 37–40 seems manifestly incorrect. Excessive-purity oxygen-loose copper can gain up to one hundred and one.Five iacs conductivity; e.G. The kanthal /062cc3b124d69a8ec1256988002a3d76/f6421c7808255963c12572bb001c8704/$file ?Openelement) lists barely decrease resistances than this table. 6. /) . Table 310.Sixteen page 70-148, allowable ampacities of insulated conductors rated 0 throrugh 2000 volts, 60°c via ninety°c, no longer extra than 3 cutting-edge-wearing conductors in raceway, cable, or earth (without delay buried) based totally on ambient temperature of 30°c. Extracts from nfpa 70 do no longer constitute the whole function of nfpa and the unique entire code should be consulted. 7. _extras/february_2006 /glossary_of_power_terms) 8. See additionally iec 60228 for worldwide trendy cord sizes imperial cord gauge & british widespread gauge a chart comparing all known cord gauges external links ) - on-line calculator converts gauge to diameter or diameter to gauge for any twine size. ) /American_wire_gauge five of 6 eleven/11/2008 8:forty five am this page become closing modified on 1 november 2008, at 04:26. All textual content is to be had underneath the terms of the gnu unfastened documentation license. (See copyrights for details.) Wikipedia® is a registered trademark of the wikimedia basis, inc., A u.S. Registered 501(c)(3) tax-deductible nonprofit charity. ) ) ) ) /American_wire_gauge" categories: cord gauges | normal gadgets inside the united states of america /american_wire_gauge 6 of 6 11/eleven/2008 8:45 am.