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composi</a></li> <li><a title="Rubber sheathed cable" href="/index.php?case=archive&act=list&catid=55">Rubber sheathed cable</a></li> </ul> </div> </li> <li ><a href="/index.php?case=archive&act=list&catid=20" title="Album" target="" class="one">Album</a> <div class="nav_er "> <ul class="div_dl "> <li><a title="Honor" href="/index.php?case=archive&act=list&catid=11">Honor</a></li> <li><a title="Equipment" href="/index.php?case=archive&act=list&catid=49">Equipment</a></li> </ul> </div> </li> <li ><a href="/index.php?case=archive&act=list&catid=25" title="Partner" target="" class="one">Partner</a> </li> <li ><a href="/index.php?case=archive&act=list&catid=5" title="Contact" target="" class="one">Contact</a> </li> </ul> </div> <div class="nav_btn"><span></span></div> </div> </div> </header> <div class="banner_nei"> <div class="banner_nei_center"> <div class=bg> <img src="http://en.ahhonglin.com//cn/upload/images/202111/16377217253814.jpg" /> </div> <div class=txt> <h1>Industry news </h1> <p></p> </div> </div> </div> <div class="box box2"> <div class="box2_t"></div> <div class="box2_b"></div> <div class="left"> <!--只展开当前栏目所在一级栏目下的分类--> <div class="left1" > <div id="catalog" > <ul class="topmenu"> <li ><a title="technical support" href="/index.php?case=archive&act=list&catid=19" ><span class="figure mr5"></span>technical support</a> <ol class="submenu"> <i></i> </ol> </li> <li ><a title="Common Problem" href="/index.php?case=archive&act=list&catid=26" ><span class="figure mr5"></span>Common Problem</a> <ol class="submenu"> <i></i> </ol> </li> <li ><a title="Company dynamics" href="/index.php?case=archive&act=list&catid=9" ><span class="figure mr5"></span>Company dynamics</a> <ol class="submenu"> <i></i> </ol> </li> <li class="on" ><a title="Industry news" href="/index.php?case=archive&act=list&catid=13" class="on"><span class="figure mr5"></span>Industry news</a> <ol class="submenu"> <i></i> </ol> </li> </ul> </div> <!--只展开当前栏目所在一级栏目下的分类--> </div> </script></div> <div class="right"> <div class="right1 news_lists"> <div id="content"> <div class="wz_title"><h3>Comparison of several cable laying methods</h3></div> <div class="contentinfo pc_show">Author：<a>hlyb</a> Add Time：2016-05-09 16:36:17 </div> <!-- 正文 --> <p>Cable is a tool for transmitting and distributing energy. The laying methods include: direct buried laying, pipe laying, shallow trench laying, cable trench laying, cable tunnel laying and overhead laying. The above laying methods have advantages and disadvantages. Generally, the selection of laying method should consider the urban development planning, the density of existing buildings, the length of cable lines, the number of laying lines and the impact of its surrounding environment.</p><p>Technically, the cable tunnel and cable trench laying methods are convenient for cable construction, maintenance and overhaul. In some cities in developed countries, public tunnels have been considered in urban planning and construction. Practice has proved that the operation effect of public tunnel is good, which greatly reduces the number of repeated investment and repeated pavement excavation, but the initial investment is huge and the construction materials consume funds. In China, due to the limitations of various factors, this laying method is very few. In contrast, direct buried laying and shallow trench laying are economical laying methods. Direct buried cable is an economical and widely used power laying method, which is used in suburbs and places where vehicles pass less frequently. However, it is not conducive to the maintenance and repair of the cable. In case of cable fault, even if the fault point is measured by the tester, it is extremely inconvenient to re excavate the cable trench. Therefore, the selection of cable laying mode shall be determined in combination with the actual situation, according to the factors such as engineering conditions, environmental characteristics, cable model and quantity, from the perspective of development, in accordance with the requirements of operation reliability, easy maintenance and the principle of technical and economic rationality.</p><p><br/></p><div class="clear"></div> <div class="blank30"></div> <div class="blank30"></div> <!-- 投票 --> <script src="/index.php?case=vote&act=view&aid=267"></script> <div class="view_n"> Browse： <script src="/index.php?case=archive&act=view_js&aid=267"></script></div> <div class="blank30"></div> <!-- 上下页开始 --> <div id="page"> <strong>On A：</strong><a href="/index.php?case=archive&act=show&aid=266">Meaning of basic properties of plastics for cables</a> <div class="blank10"></div> <strong>Next：</strong><a href="/index.php?case=archive&act=show&aid=268">Basic knowledge of overhead cable</a> </div> <!-- 上下页结束 --> <!-- 相关文章开始 --> <div class="blank30"></div> <div class="p_info">Related Content：</div> <div class="blank10"></div> <ul class="news_list"> <li><a href="/index.php?case=archive&act=show&id=336">All models and descr…</a></li> <li><a href="/index.php?case=archive&act=show&id=335">A simple method for …</a></li> <li><a href="/index.php?case=archive&act=show&id=323">WDZ series low smoke…</a></li> <li><a href="/index.php?case=archive&act=show&id=322">Technical specificat…</a></li> <li><a href="/index.php?case=archive&act=show&id=304">WDZN-KYJY22 XLPE ins…</a></li> </ul> <!-- 相关文章结束 --> <div class="blank30"></div> <a title="Return To The Top" href="#" class="clear floatright"><img alt="Return To The Top" src="/images/gotop.gif"></a> <div class="blank30"></div> </div> <div class="clear"></div> </div> <!-- 右侧结束 --> <div class="c_bottom"></div> <div class="clear"></div> </div> <!-- 中部结束 --> </div> <!--footer--> <div class="footer" style="visibility: visible;"> <div class="foot"> <div class="foot_box "> <dl> <dt><a href="/index.php?case=archive&act=list&catid=1" title="About">About</a></dt> <dd><a href="/index.php?case=archive&act=list&catid=7" title="Management philosophy">Management philosophy</a> <a href="/index.php?case=archive&act=list&catid=12" title="Message from the general manag">Message from the general manag</a> <a href="/index.php?case=archive&act=list&catid=25" title="Partners">Partners</a> <a href="/index.php?case=archive&act=list&catid=29" title="Qualifications">Qualifications</a> </dd> </dl> <dl> <dt><a href="/index.php?case=archive&act=list&catid=2" title="News">News</a></dt> <dd><a href="/index.php?case=archive&act=list&catid=19" title="technical support">technical support</a> <a href="/index.php?case=archive&act=list&catid=26" title="Common Problem">Common Problem</a> <a href="/index.php?case=archive&act=list&catid=9" title="Company dynamics">Company dynamics</a> <a href="/index.php?case=archive&act=list&catid=13" title="Industry news">Industry news</a> </dd> </dl> <dl> <dt><a href="/index.php?case=archive&act=list&catid=20" title="Album">Album</a></dt> <dd><a href="/index.php?case=archive&act=list&catid=49" title="Equipment">Equipment</a> <a href="/index.php?case=archive&act=list&catid=11" title="Honor">Honor</a> </dd> </dl> <dl class=bottom_list> <dt class=bottom_contact><a >Contact us</a></dt> <p class=bottom_tel>+86-0550-7516689</p> <p class=bottom_email>ahhl@ahhonglin.com</p> <p class=bottom_address>No. 163, Tongcheng economic and Industrial Park, Tianchang City, Anhui Province</p> </dl> <div class="foot_qr_codes"> <dl> <span>Scanning</span> <div class="foot_qr_codes"> <img width="130" src="/index.php?case=tool&act=qrcode" /> <div class="clear"></div> </div> </dl> </div> </div> </div> </div> <div class="copyright"> <div class="copyright_center"> Copyright ©：<a title="Anhui Honglin Instrument Cable Co., Ltd.--Low smoke halogen-free control cable, low smoke halogen-free power cable" href="/">Anhui Honglin Instrument Cable Co., Ltd.</a> <a href="http://beian.miit.gov.cn/"target="_blank">皖ICP备16006500号-1</a> <a target="_blank" href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=34118102000427" style="display:inline-block;text-decoration:none;height:20px;line-height:20px;"><img src="/images/gaba.png" style="float:left;"/><p style="float:left;height:20px;line-height:20px;margin: 3px 0px 0px 5px; 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