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src="https://tyunfile.71360.com/UploadFile/hbqysf/637232513372724610/4217025.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bli85um" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>湖北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>黃岡學校避雷針廠家直銷,避雷針</p><p><span>***更新：</span>2021-01-22 01:06:56</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8s7obtv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">湖北乾元上風電氣工程有限公司</a></p><p><span>聯(lián)系人：</span>尹經理</p><p><span>郵箱: </span></p><p><span>電話: </span>15671528728</p><p><span>傳真: </span>156_</p><p><span>網址: </span></p><p><span>手機: </span>156-71528728</p><p><span>地址: </span>武漢市江岸區(qū)金橋大道金橋壹號1203</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m23lias" class="page-proshow02"><p class="title">詳細說明</p><div id="bbo7j2f" class="box"><p><h2> 安裝避雷針有哪些注意事項？ </h2> <p> <span style="font-size:16px;">安裝避雷針時，應注意以下事項： 1、在選擇**避雷針的裝設地點時，應使避雷針及其接地裝置與配電裝置之間抄保持以下規(guī)定的距離：在地面上，由**避雷針到配電裝置的導電部分以及到變電所電氣設備和構架地部分間的空間距離不應小于6m,在地下，由**避襲雷針本身的接地裝置與變電所接地網間近的地中距離一般不小于3m。 2、**避雷針的接地電阻一般不宜超過10Ω。 3、為了防止雷擊避雷針時，黃岡學校避雷針廠家直銷，雷電波由電線傳入室內，危及人身安全，所以不得在避雷針構架上架設電壓線路或通信線路，黃岡學校避雷針廠家直銷。裝有避雷針的構架上的照明燈電源線，必須采用直埋于地下的帶金屬保護層的電纜或穿入金屬管的導線。電纜保護層或金屬管必百須接地，埋地長度在10m以上，黃岡學校避雷針廠家直銷，方可與配電裝置的接地網連接，貨與電源線度、低壓配電裝置相連接。</span> 防雷避雷針，湖北乾元上風電氣供應，品質優(yōu)良！黃岡學校避雷針廠家直銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃岡學校避雷針廠家直銷,避雷針" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232513372724610/4217025.jpg"></div><h2> 避雷針可以避雷的原理 </h2> <p> <span style="font-size:16px;">雷雨天氣，高樓上空出現(xiàn)帶電云層時，避雷針和高樓頂部都被感應上大量電荷，由于避雷針針頭是尖的，所以靜電感應時，導體前列總是聚集了多的電荷。這樣，避雷針就聚集了大部分電荷。避雷針又與這些帶電云層形成了一個電容器，由于它較尖，即這個電容器的兩極板正對面積很小，電容也就很小，也就是說它所能容納的電荷很少。而它又聚集了大部分電荷，所以，當云層上電荷較多時，避雷針與云層之間的空氣就很容易被擊穿，成為導體。這樣，帶電云層與避雷針形成通路，而避雷針又是接地的，避雷針就可以把云層上的電荷導入大地，使其不對高層建筑構成危險，保證了它的安全。按我國統(tǒng)計的雷電流幅值約為300 kA，其對應的雷擊高度為408 m。取雷擊定位高度為400m，可得出不同高度避雷針的保護區(qū)和散擊區(qū)的地表半徑見表1。我國舊式民房一般高度在10 m以下，避雷帶和避雷網的高度與房高相同，安裝的短針防雷其高度為1～2 m，它們引起的散擊現(xiàn)象不明顯；高聳建筑物和高架避雷針引雷招致雷擊率增高和存在散擊區(qū)。</span> 襄陽塔頂避雷針安裝公司防雷避雷針，湖北乾元上風電氣供應，品質有保證！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃岡學校避雷針廠家直銷,避雷針" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232513374384766/628387.jpg"></div><h2> 避雷針的覆蓋面積是多少 </h2> <p> <span style="font-size:16px;">據(jù)中國的規(guī)范規(guī)定，單支避雷針的保護范圍是一個錐體，高度為h的避雷針，其在地面上的保護半徑r=1.5h；在被保護物高度hx的水平面上，其保護半徑rx為：rx=(1.5h-2hx)P。 “折線法”是比較成熟的方法，在電力系統(tǒng)又稱“規(guī)程法”，即單支避雷針的保護范圍是一個以避雷針為軸的折線圓錐體。單支避雷針的保護范圍在DL/T620-997《交流電氣裝置的過電壓保護和絕緣配合》標準中有所規(guī)定；“滾球法”是國際電工會（IEC）推薦的接閃器保護范圍計算方法之一。我國建筑防雷規(guī)范GB50057-1994Z中也把“滾球法”強制作為計算避雷針保護范圍的方法。滾球法是以hR為半徑的一個球體沿需要防止擊雷的部位滾動，當球體只觸及接閃器（包括被用作接閃器的金屬物）或只觸及接閃器和地面（包括與大地接觸并能承受雷擊的金屬物），而不觸及需要保護的部位時，則該部分就得到接閃器的保護。</span> </p><h2> 裝置避雷針是避免雷擊的有效方法。 </h2> <p> <span style="font-size:16px;">在房屋處豎一金屬棒，棒下端連一條足夠粗的銅線，銅線下端連一塊金屬板埋入地下深處潮濕處。金屬棒的上端須是一個尖頭或分叉為幾個尖頭。有了這樣的裝置，當空中有帶電的云時。避雷針的前列因靜電感應就集中了異種電荷，發(fā)生前列放電，與云內的電相中和，避免發(fā)生激烈的雷電、這就是避雷針能避雷的一方面。但這種作用頗慢，如果云中積電很快，或一塊帶有大量電荷的云突然飛來，有時來不及按上述方式中和，于是有強烈的放電，加雷電仍會發(fā)生。但這時由于避雷針高過周圍物體，它的前列又集中了與云中電異號的電荷，如果雷電是在云和地面物之間發(fā)生，放電電流主要通過避雷針流入大地，因此，不會打在房屋或附近人的身上，只會打在避雷針上了。由此可見，避雷針的前列放電作用會減少地面物與云之間打雷的可能性；到了不可避免時，它自己就負擔了雷的打擊，房屋與人得到了安全。由于避雷針的構造和作用，我們要特別注意保持避雷針的良好導電性。一旦有一處聯(lián)接不好，或斷了，斷口以上的一段就成為一個隔離的導電系統(tǒng)。</span> 避雷針安裝價格，湖北乾元上風電氣供應，品質優(yōu)良！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃岡學校避雷針廠家直銷,避雷針" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232513374277344/5446338.jpg"></div><h2> 常規(guī)防雷電?？煞譃榉乐睋衾纂?、防感應雷電和綜合性防雷電。 </h2> <p> <span style="font-size:16px;">防直擊雷電的避雷裝置一般由三部分組成，即接閃器、引下線和接地體；接閃器又分為避雷針、避雷線、避雷帶、避雷網。以避雷針作為接閃器的防雷電原理是：避雷針通過導線接入地下，與地面形成等電位差，利用自身的高度，使電場強度增加到極限值的雷電云電場發(fā)生畸變，開始電離并下行先導屬放電；避雷針在強電場作用下產生前列放電，形成向上先導放電。兩者會合形成雷電通路，隨之瀉入大地，達到避雷效果。實際上，避雷針是引雷針，可將周圍的雷電引來并提前放電，將雷電電流通過自身的接地導體傳向地面，避免保護對象直接遭雷擊。參考資料來源：百度百科——避雷針</span> 防雷避雷針安裝公司，湖北乾元上風電氣供應，歡迎您來點電咨詢！襄陽塔頂避雷針安裝公司</p><p style="text-indent:25px">防雷避雷針廠家，湖北乾元上風電氣供應，品質優(yōu)良！黃岡學校避雷針廠家直銷</p><h2> 避雷針可以避雷的原理： </h2> <p> <span style="font-size:16px;">雷雨天氣，高樓上空出現(xiàn)帶電云層時，避雷針和高樓頂部都被感應上大量電荷，由于避雷針針頭是尖的，所以靜電感應時，導體前列總是聚集了多的電荷。這樣，避雷針就聚集了大部分電荷。避雷針又與這些帶電云層形成了一個電容器，由于它較尖，即這個電容器的兩極板正對面積很小，電容也就很小，也就是說它所能容納的電荷很少。而它又聚集了大部分電荷，所以，當云層上電荷較多時，避雷針與云層之間的空氣就很容易被擊穿，成為導體。這樣，帶電云層與避雷針形成通路，而避雷針又是接地的，避雷針就可以把云層上的電荷導入大地，使其不對高層建筑構成危險，保證了它的安全。按我國統(tǒng)計的雷電流幅值約為300 kA，其對應的雷擊高度為408 m。取雷擊定位高度為400m，可得出不同高度避雷針的保護區(qū)和散擊區(qū)的地表半徑見表1。我國舊式民房一般高度在10 m以下，避雷帶和避雷網的高度與房高相同，安裝的短針防雷其高度為1～2 m，它們引起的散擊現(xiàn)象不明顯；高聳建筑物和高架避雷針引雷招致雷擊率增高和存在散擊區(qū)。</span> 黃岡學校避雷針廠家直銷</p><p style="text-indent:25px">湖北乾元上風電氣工程有限公司主要經營范圍是電工電氣，擁有一支專業(yè)技術團隊和良好的市場口碑。公司業(yè)務分為武漢防雷檢測，變電站防雷接地，機房避雷針安裝，避雷針等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產品和服務。公司從事電工電氣多年，有著創(chuàng)新的設計、強大的技術，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產品及服務。湖北乾元上風憑借創(chuàng)新的產品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2949687.html</p></div></div></div></div></div><div id="rqnphta" class="page-right twoColRt"><div id="g8jd3yq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nsk3p9o" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div 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