1根6平方的线是否可用2根3平方的线代替？
<p> 请问，我在接地也好，拉电力线也罢，比如本来是要用1根6平方的线来铺设的，但是我用2根3平方的线来代替行不行？这样他们的横截面积都是一样的。</p><p></p><p> 但是有人说不能这么做，因为肌肤效应。我算了下，2根3平方的线其实他的周长比1根6平方的还要大。郁闷中！</p> <p>有些情况下可以!但是有些时候是不行的!!!!!!</p><p>尤其用在防雷系统上时候!</p><p></p>[此贴子已经被作者于2007-3-22 22:08:20编辑过]
<p>楼上兄弟,最好还是用1根6平方的比较好!</p> <p>我对防雷方面工程颇有了解.咱们都是同行,可以加我QQ聊聊技术问题.互相学习学习.</p><p>QQ:335801824</p> <p>用于接地。不行。建议用一根6M2</p> <p>楼主:电源防雷器接地最好用16米方的,而且要就近接地,否则防雷器等于没装.</p><p>俺见过好多防雷器的地线接得乱七八糟什么样的都有,最主要的毛病就是线太细,接得不牢，地线太长，地阻太高，泄流面积不够．．．．．．．．．．．．</p><p>现在好多防雷公司只知道卖防雷器５５５５５５５５５５５</p> 支持胡子！～ 我初涉防雷，不过觉得切说的蛮有道理的！ 支持大胡子！防雷不能马虎，否则就等于摆设。 <p>支持胡子!!</p> 支持胡子 <p>有些地线过长，我也见到过，可那也是没办法的呀！！要看现场是什么情况。。不过接地线还是要按标准来。。呵呵</p> <p>最好不要用</p><p>1、接地6M2的不合要求，要用16M2的。</p><p>2、强电更不能用，上下方电源开关大小不一样。</p> 应该用16平方的BVR多股铜芯线. <p>最新的规范GB50343上有:</p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">6.3.2</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">接地装置与室内总等电位连接带的连接导体截面积，铜质接地线不应小于<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="50" unitname="mm"><span lang="EN-US">50</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman";">mm</span></chmetcnv></span><sup><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">2</span></sup><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">钢质接地线不应小于</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="80" unitname="mm"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">80mm</span></chmetcnv><sup><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">2</span></sup><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">。</span></p><p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">6.3.3</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">等电位接地端子板之间应采用螺栓连接，其连接导线截面积应采用不小于<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="16" unitname="mm"><span lang="EN-US">16</span><span lang="EN-US" style="FONT-FAMILY: "Times New Roman";">mm</span></chmetcnv></span><sup><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">2</span></sup><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">的多股铜芯导线，穿管敷设。</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"> </shapetype></span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600">而关于电源避雷器的接地线参考如下:第一级接地线最小为25平方;第二级接地线最小为16平方;第三级接地线最小为10平方;第四级最小为6平方.</shapetype></span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600">所以也不是说全部必须用16方线的,这就需要视具体情况而定的.</shapetype></span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600">我想这下你应该很明白了....</shapetype></span></p> <p>防雷工作马虎不得的</p> <p><strong>第一次听说有3平方的线</strong></p><p> </p> <p>恩,有道理!</p> <p>我也没见过3平方的线。如果是两根3平方的铜线拧在一起，当然比一根6平方的线要好，前提是必须是剥掉绝缘套的线，</p>