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href="http://m.cdcfah.com/cp/third-gkxtjzbyb_qtgkxtjzbdn/">其他工控系統(tǒng)及裝備</a>?襄陽(yáng)特種防雷哪家強(qiáng) 鑄造輝煌湖北乾元上風(fēng)電氣供應(yīng)</p><div id="m7qnpzl" class="leftbox clearfix"><h1>襄陽(yáng)特種防雷哪家強(qiáng) 鑄造輝煌湖北乾元上風(fēng)電氣供應(yīng)</h1><div id="jt7nkro" class="proBig"><div id="pe4ikby" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/hbqysf/637232452424218750/4187890.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gvp8cwr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/hbqysf/637232452424218750/4187890.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lvk3jzl" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(chǎn)品關(guān)鍵詞：</span>襄陽(yáng)特種防雷哪家強(qiáng)</p><p><span>***更新：</span>2020-05-22 17:33:23</p><p><span id="click" >瀏覽次數(shù)：9次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="x7c3umt" 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(fēng)電氣工程有限公司</a></p><p><span>聯(lián)系人：</span>尹經(jīng)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(wǎng)址: </span></p><p><span>手機(jī): </span>156-71528728</p><p><span>地址: </span>武漢市江岸區(qū)金橋大道金橋壹號(hào)1203</p><p>[當(dāng)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="akhuwn8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3ubyvhb" class="box"><p><h2> <span style="font-size:16px;">防雷工程公司談雷電的種類(lèi) </span> </h2> <p> <br /> </p> <p> <span style="font-size:16px;"> 直擊雷是云層與地上凸出物之間的放電構(gòu)成的。直擊雷可在瞬間擊傷擊斃人畜。巨大的雷電流流入地下，在雷擊點(diǎn)及其銜接的金屬部分發(fā)生極高的對(duì)地電壓，可能直接導(dǎo)致觸摸電壓或跨步電壓的觸電事端。另外，直擊雷的巨大的雷電流經(jīng)過(guò)被擊物，在極短的時(shí)間內(nèi)轉(zhuǎn)換成許多的熱能，形成易燃物品的焚燒或金屬熔化飛濺而引起火災(zāi)。</span> </p> <p> <span style="font-size:16px;"> 雷電感應(yīng)分為靜電感應(yīng)和電磁感應(yīng)兩種。靜電感應(yīng)是因?yàn)槔自平咏厣?，在地上凸出物頂部感?yīng)出許多異性電荷所形成的。在雷云與其他部位放電后，凸出物頂部的電荷失掉捆綁，以雷電波方式，沿杰出物極快地傳達(dá)。電磁感應(yīng)是因?yàn)槔讚艉螅薮罄纂娏髟谥車(chē)臻g發(fā)生敏捷改變的強(qiáng)壯磁場(chǎng)所形成的，襄陽(yáng)特種防雷哪家強(qiáng)。這種磁場(chǎng)能在鄰近的金屬導(dǎo)體上感應(yīng)出很高的電壓，形成對(duì)人體的二次放電，襄陽(yáng)特種防雷哪家強(qiáng)，然后損壞電氣設(shè)備。</span> </p> <p> <span style="font-size:16px;"> 雷電沖擊波是因?yàn)槔讚舳诩芸站€路上或空中金屬管道上發(fā)生的沖擊電壓沿線或管道敏捷傳達(dá)的雷電波。雷電侵入波可破壞電氣設(shè)備的絕緣，使高壓竄入低壓，形成嚴(yán)峻的觸電事端，襄陽(yáng)特種防雷哪家強(qiáng)。歸于雷電侵入波形成的雷電事端許多，在低壓體系這類(lèi)事端約占總雷害事端的70%。</span> </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)特種防雷哪家強(qiáng)" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232452424218750/4187890.jpg"></div><h1> <span style="font-size:16px;">防雷安裝工程中的預(yù)埋施工</span> </h1> <p> <span style="font-size:16px;"> </span> </p> <p> <span style="font-size:16px;"> 防雷接地的焊接采用搭接焊，搭接長(zhǎng)度應(yīng)符合以下規(guī)定：圓鋼與圓鋼搭接長(zhǎng)度不應(yīng)小于其圓鋼直徑的6倍，雙面施焊（當(dāng)直徑不同時(shí)，搭接長(zhǎng)度以直徑大的為準(zhǔn)）；圓鋼與扁鋼搭接時(shí)不應(yīng)小于其圓鋼直徑的6倍，雙面施焊；扁鋼與扁鋼搭接為扁鋼不應(yīng)小于其寬度的2倍，不少于三面施焊（當(dāng)扁鋼寬度不同時(shí)，搭接長(zhǎng)度以寬的為準(zhǔn)）；扁鋼與鋼管或角鋼焊接時(shí)，應(yīng)緊貼3/4鋼管表面或緊貼角鋼外側(cè)兩面，上下兩面使焊。焊接點(diǎn)的焊縫應(yīng)飽滿(mǎn)，不得有夾渣、咬肉、虛焊和氣孔等缺點(diǎn)，焊好后應(yīng)清理藥皮，焊接點(diǎn)除埋設(shè)在混凝土內(nèi)的不作處理外，其余的焊點(diǎn)均需采取防腐措施：刷防銹漆一道，銀粉漆兩遍。</span> </p> <p> <span style="font-size:16px;"> 接地裝置利用建筑物基礎(chǔ)圈梁內(nèi)（**）對(duì)角的二根主鋼筋焊接成環(huán)網(wǎng)（主筋小于12的須采用4根主筋），引下線與環(huán)網(wǎng)焊成一體。接地體（線）的連接應(yīng)采用焊接，焊接處焊縫應(yīng)飽滿(mǎn)并有足夠的機(jī)械強(qiáng)度，不得有夾渣、咬肉、裂紋、虛焊、氣孔等缺點(diǎn)，焊接處的藥皮敲凈后，做防腐處理?；A(chǔ)接地工程完工后，</span> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)特種防雷哪家強(qiáng)" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232452431591797/1721467.jpg"></div><h1> <span style="font-size:16px;">如何做好防雷接地</span><span style="font-size:16px;"></span> </h1> <p> <span style="font-size:16px;"> 在防雷系統(tǒng)領(lǐng)域中，我們無(wú)論在弱電防雷方面還是在強(qiáng)電防雷方面，還是在小小的防靜電領(lǐng)域中，都會(huì)遇到一個(gè)常見(jiàn)的東西—— 武漢防雷接地，這里簡(jiǎn)稱(chēng)地網(wǎng)，并且很多防雷**一而再，再而三的強(qiáng)調(diào)地網(wǎng)的重要性，無(wú)地網(wǎng)的項(xiàng)目就是空中樓閣，無(wú)地網(wǎng)的防雷工程比不做防雷工程更加危險(xiǎn)，不達(dá)標(biāo)的地網(wǎng)也時(shí)刻可能引雷上身。</span> </p> <p> <span style="font-size:16px;"> 那么，這個(gè)地網(wǎng)是什么東西？真的有這么重要么？什么樣的地網(wǎng)才能算真正達(dá)標(biāo)呢？</span> </p> <p> <span style="font-size:16px;"> 地網(wǎng)其實(shí)就是埋在大地下面的，簡(jiǎn)單的地網(wǎng)就是通過(guò)垂直接地體和水平接地體連接起來(lái)，有星型的，有M型的，有的更加簡(jiǎn)單的，就是一條直線型的，或者方形，圓形的等等。埋于土壤中的人工垂直接地體宜采用熱鍍鋅角鋼、鋼管或圓鋼；埋于土壤中的人工水平接地體宜采用熱鍍鋅扁鋼或圓鋼。接地線應(yīng)與水平接地體的截面相同。</span> </p> <p> <span style="font-size:16px;"> 人工接地體在土壤中的埋設(shè)深度不應(yīng)小于0.5 m，并宜敷設(shè)在地凍土層以下，其距墻或基礎(chǔ)不宜小于1m。接地體宜遠(yuǎn)離由于燒窯、煙道等高溫影響使土壤電阻率升高的地方。人工鋼質(zhì)垂直接地體的長(zhǎng)度宜為2.5m。其間距以及人工水平接地體的間距均宜為5m，當(dāng)受地方限制時(shí)可適當(dāng)減小。</span> </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)特種防雷哪家強(qiáng)" src="https://tyunfile.71360.com/UploadFile/hbqysf/637232452432607422/2414130.jpg"></div></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/4495.html</p></div></div></div></div></div><div id="laczwif" class="page-right twoColRt"><div id="zj3krta" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yifhjvs" class="recomPic likePro"><a href="http://m.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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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