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各位大俠,請(qǐng)教一下電源線的電流與其截面積的關(guān)系是否有公式可以算的,具體的公式是??

根據(jù)UL62的條文，我們可以大概的得出電流和線規(guī)大小的對(duì)應(yīng)，沒(méi)有具體公式

見UL62 2000版的32.1和32.1（新版UL62 2006里面沒(méi)有了這部分內(nèi)容）

謝謝回復(fù),你是否有這方面的資料,共亨一下或發(fā)給我郵箱:heqy_1982@163.com在此先謝了..

http://club.elanw--.com/dispbbs.asp?boardID=47&ID=28260&page=2這里下載

電源線用于插頭, 18AWG對(duì)應(yīng)10A, 16AWG對(duì)應(yīng)13A, 14AWG對(duì)應(yīng)15A, 其他我就不知道了.

這個(gè)問(wèn)題問(wèn)得好, 困擾我很久了.

http://787060733.qzone.qq.com

與外被，導(dǎo)體數(shù)，電纜長(zhǎng)度都有關(guān)係

SJ、SJO        18AWG   2導(dǎo)體        0-15.2m 10A   超過(guò)7A

                                         3導(dǎo)體        0-15.2m  7A   超過(guò)5.6A

我也想要這方面的資料,如果哪位朋友有的,希望你能發(fā)一份EM給我,我的EM是:1133.52@163.com,謝謝

我也想知道，20,22,24,26和28AWG分別對(duì)應(yīng)多少A電流？

32 Outdoor Service Cords
Section 32 effective July 2, 1998
32.1 CORD FOR USE WITH RECREATIONAL VEHICLES – A flexible cord that is intended for use in a cord set or power-supply cord for recreational vehicles shall be a Type SOOW, SOW, STOOW, STOW,STW, SEOOW, SEOW, or SEW cord that complies with the requirements for outdoor use in 32.4 – 32.13 and has two insulated No. 14, 12, or 10 AWG circuit conductors and one insulated grounding conductor of the same size as the circuit conductors. For use in the marking specified for the cord surface in 75.2,

a current rating of 15 A shall apply to this cord having No. 14 AWG circuit conductors,

a current rating of 20 A shall apply to this cord having No. 12 AWG circuit conductors, 

 a current rating of 30 A shall apply to this cord having No. 10 AWG circuitconductors.

The outer surface of the insulation on the grounding conductor shall be green with or without one or more straight or helical unbroken yellow stripes that are of even or varying width and occupy a total width of 5 – 70 percent of the calculated circumference of the
insulated conductor and no less individual width than 5 percent of the calculated circumference of the insulated conductor.

cany:

32 Outdoor Service Cords
Section 32 effective July 2, 1998
32.1 CORD FOR USE WITH RECREATIONAL VEHICLES – A flexible cord that is intended for use in a cord set or power-supply cord for recreational vehicles shall be a Type SOOW, SOW, STOOW, STOW,STW, SEOOW, SEOW, or SEW cord that complies with the requirements for outdoor use in 32.4 – 32.13 and has two insulated No. 14, 12, or 10 AWG circuit conductors and one insulated grounding conductor of the same size as the circuit conductors. For use in the marking specified for the cord surface in 75.2,

a current rating of 15 A shall apply to this cord having No. 14 AWG circuit conductors,

 

<DIV dir=ltr>32戶外服務(wù)線
第32條有效一九九八年七月二日
32.1簾線的使用休閑車-一種靈活的臍帶血，目的是用于脊髓設(shè)置或電源線的娛樂(lè)車輛應(yīng)是一個(gè)類型S OOW，母豬， S TOOW，儲(chǔ)存， S TW， S EOOW，蕭，或縫合線的符合要求的戶外使用在32.4 -3 2.13，有兩個(gè)隔熱第1 4號(hào)， 1 2或1 0特設(shè)工作組電路導(dǎo)線和絕緣接地導(dǎo)體的尺寸相同的電路導(dǎo)線。用于標(biāo)識(shí)指定的脊髓表面的75.2 ，


目前等級(jí)15應(yīng)適用于本脊髓有特設(shè)工作組第14號(hào)電路導(dǎo)線，

目前等級(jí)20應(yīng)適用于本脊髓有特設(shè)工作組第12號(hào)電路導(dǎo)線，

 目前等級(jí)30應(yīng)適用于本線有10號(hào)特設(shè)工作組circuitconductors 。

外表面的絕緣的接地導(dǎo)體應(yīng)綠化帶或不帶一個(gè)或多個(gè)直線或螺旋連續(xù)黃色條紋，這些，甚至不同的寬度和占據(jù)了總寬度5 -百分之七十的計(jì)算周長(zhǎng)
絕緣導(dǎo)線和不低于個(gè)人寬度超過(guò)百分之五計(jì)算的周長(zhǎng)絕緣導(dǎo)線。</DIV>

a current rating of 20 A shall apply to this cord having No. 12 AWG circuit conductors, 

 a current rating of 30 A shall apply to this cord having No. 10 AWG circuitconductors.

The outer surface of the insulation on the grounding conductor shall be green with or without one or more straight or helical unbroken yellow stripes that are of even or varying width and occupy a total width of 5 – 70 percent of the calculated circumference of the
insulated conductor and no less individual width than 5 percent of the calculated circumference of the insulated conductor.