PDF Publication Title:
Text from PDF Page: 513
9/27/01 AC 43.13-1B CHG 1 Where: T1 = Ambient Temperature T2 = Estimated Conductor Temperature TR = Conductor Temperature Rating I2 = Circuit Current (A=Amps) Imax = Maximum Allowable Current (A=Amps) at TR This formula is quite conservative and will typi cally yield somewhat higher estimated tempera tures than are likely to be encountered under actual operating conditions. Note: Aluminum wire-From Table 11-9 and 11-10 note that the conductor resistance of aluminum wire and that of copper wire (two numbers higher) are similar. Accordingly, the electric wire current in Table 11-9 can be used when it is desired to substitute alu- minum wire and the proper size can be se- lected by reducing the copper wire size by two numbers and referring to Table 11-10. The use of aluminum wire size smaller than No. 8 is not recommended. TABLE 11-9. Current carrying capacity and resistance of copper wire. Wire Size Continuous duty current (amps)-Wires in bundles, groups, harnesses, or conduits. (See Note #1) Wire Conductor Temperature Rating 105 °C 150 °C 200 °C 2.545 356 479 6912 Max. resistance ohms/1000ft@20 °C tin plated conduc tor (See Note #2) Nominal conductor area circ.mils 475 755 1,216 1,900 2,426 3,831 5,874 9,354 16,983 26,818 42,615 66,500 81,700 104,500 133,000 166,500 210,900 28.40 16.20 9.88 6.23 4.81 3.06 2.02 1.26 0.70 0.44 0.28 0.18 0.15 0.12 0.09 0.07 0.06 24 22 20 18 16 14 12 10 8 6 4 2 1 0 00 000 0000 7 11 10 14 13 19 17 26 38 57 50 76 68 103 95 141 113 166 128 192 147 222 172 262 204 310 14 18 25 32 71 97 133 179 210 243 285 335 395 Note #1: wires for size 8 and larger, with no more than 20 percent of harness current carrying capacity being used, at an operating altitude of 60,000 feet. For rating of wires under other conditions or configurations see paragraph 11-69. Note #2: For resistance of silver or nickel-plated conductors see wire specifications. Rating is for 70°C ambient, 33 or more wires in the bundle for sizes 24 through 10, and 9 Par 11-66 Page 11-23PDF Image | AFS-640
PDF Search Title:
AFS-640Original File Name Searched:
ac_43.13-1b_w-chg1.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)