各位大侠,请教一下电源线的电流与其截面积的关系是否有公式可以算的,具体的公式是??

根据UL62的条文，我们可以大概的得出电流和线规大小的对应，没有具体公式

见UL62 2000版的32.1和32.1（新版UL62 2006里面没有了这部分内容）

谢谢回复,你是否有这方面的资料,共亨一下或发给我邮箱:heqy_1982@163.com在此先谢了..

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

电源线用于插头, 18AWG对应10A, 16AWG对应13A, 14AWG对应15A, 其他我就不知道了.

这个问题问得好, 困扰我很久了.

http://787060733.qzone.qq.com

與外被，導體數，電纜長度都有關係

SJ、SJO        18AWG   2導體        0-15.2m 10A   超過7A

                                         3導體        0-15.2m  7A   超過5.6A

我也想要这方面的资料,如果哪位朋友有的,希望你能发一份EM给我,我的EM是:1133.52@163.com,谢谢

我也想知道，20,22,24,26和28AWG分别对应多少A电流？

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户外服务线
第32条有效一九九八年七月二日
32.1帘线的使用休闲车-一种灵活的脐带血，目的是用于脊髓设置或电源线的娱乐车辆应是一个类型S OOW，母猪， S TOOW，储存， S TW， S EOOW，萧，或缝合线的符合要求的户外使用在32.4 -3 2.13，有两个隔热第1 4号， 1 2或1 0特设工作组电路导线和绝缘接地导体的尺寸相同的电路导线。用于标识指定的脊髓表面的75.2 ，


目前等级15应适用于本脊髓有特设工作组第14号电路导线，

目前等级20应适用于本脊髓有特设工作组第12号电路导线，

 目前等级30应适用于本线有10号特设工作组circuitconductors 。

外表面的绝缘的接地导体应绿化带或不带一个或多个直线或螺旋连续黄色条纹，这些，甚至不同的宽度和占据了总宽度5 -百分之七十的计算周长
绝缘导线和不低于个人宽度超过百分之五计算的周长绝缘导线。</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.