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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="inprln4" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海安防集中電源廠家推薦,安防</p><p><span>***更新：</span>2021-01-21 11:13:17</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8gipwnx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機(jī): </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號德泰工業(yè)區(qū)1號廠房4層402</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="sri7crq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="od8d3pw" class="box"><p><p style="text-indent:25px">開關(guān)型線性穩(wěn)壓電源:有一類與變壓器型線性穩(wěn)壓電源不同的線性穩(wěn)壓電源就是開關(guān)型線性穩(wěn)壓電源，它的電路型式主要有單端反激式，單端正激式、半橋式、推挽式和全橋式，上海安防集中電源廠家推薦，上海安防集中電源廠家推薦，上海安防集中電源廠家推薦。它和線性電源的根本區(qū)別在于它變壓器不工作在工頻而是工作在幾十千赫茲到幾兆赫茲。功能管不是工作在飽和及截止區(qū),而是工作在開關(guān)狀態(tài)；開關(guān)電源因此而得名，開關(guān)電源的優(yōu)點(diǎn)是體積小，重量輕，穩(wěn)定可靠；缺點(diǎn)是相對于變壓器型線性穩(wěn)壓電源來說紋波較大，一般≤1%VO(P-P),好的可做到幾十mV(P-P)或更小。目測電源上是否有保護(hù)電路的設(shè)計(jì)。上海安防集中電源廠家推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海安防集中電源廠家推薦,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725433105195/9622582.png"></div><p style="text-indent:25px">自立RVV線供電：根據(jù)終端攝像機(jī)的功率大小，一般的固定機(jī)功率不超過10W，紅外機(jī)一般不超過20W，球機(jī)約為35W。單純從功率上來說，RVV2*0.5的線就足夠了，國標(biāo)0.5的線可以帶約1KW的負(fù)載。遠(yuǎn)距離，考慮到衰減，建議采用不小于1.0的線。如果攝像機(jī)的數(shù)量較少(5臺以內(nèi))且攝像機(jī)與監(jiān)控主機(jī)的間隔較近(少于50米)，每臺攝像機(jī)可獨(dú)自布RVV2×0.5電源線到監(jiān)控室并用小型變壓器供電。如果攝像機(jī)的數(shù)量較多，則應(yīng)采納大功率的12V直流穩(wěn)壓電源集中供電。在工過程中，要考慮到悉數(shù)攝像機(jī)的總功率和由傳輸線路所形成的電壓降(稱說“線損”，規(guī)格為1m2的銅導(dǎo)線每100m的電阻是1.8Ω)。對于一幢樓的監(jiān)控，施工時一般用2條2.5-6m2的銅芯雙塑線作為電源主線由監(jiān)控室引至線井，并沿線井走至各攝像機(jī)樓層的線井。對樓層各攝像機(jī)的供電，可由該層線井引1條RVV2×1或RVV2×1.5(若該層的攝像機(jī)數(shù)量超越6臺)電源線給攝像機(jī)供電，或用RVV2×0.5護(hù)套線一一引線對應(yīng)供電。青島安防電源采購所有的攝像機(jī)在打開電源瞬間同時啟動，啟動電流特別大，對電源的沖擊力很大，嚴(yán)重的會燒毀電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海安防集中電源廠家推薦,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725314247796/1083102.png"></div><p style="text-indent:25px">專業(yè)安防電源：產(chǎn)品包括智能樓宇電源，如可視對講電源，門禁,考勤電源等,一般有9VDC,12VDC，18VDC,24VDC等，監(jiān)控電源包括攝像機(jī)電源，智能高速球機(jī)電源,恒速球機(jī)電源,紅外球機(jī)電源,云臺電源，解碼器電源,DVR**電源,車載電源匹配器,矩陣及鍵盤電源，畫面處理器電源等,一般有12VDC，24VDC等，防盜報(bào)警電源包括有線和無線報(bào)警主機(jī)電源,紅外對射探測器電源等,一般有9VDC,12VDC，18VDC,24VDC等，通訊設(shè)備**電源包括光端機(jī)**電源，光纖信號收發(fā)器電源,一般用5VDC；產(chǎn)品有隱藏型護(hù)罩內(nèi)置電源,室外壁掛式防水電源系列，室內(nèi)壁掛式電源系列，桌面型系列【也叫雙線電源】，插墻式電源系列【也叫單線電源】，數(shù)字顯示型大功率臺式電源系列，箱式多路輸出電源系列，19寸4U標(biāo)準(zhǔn)機(jī)架式大功率電源系列,分AC→AC,AC→DC,DC→DC，DC→AC等產(chǎn)品，可量身定做,提供產(chǎn)品內(nèi)置式電源裸板,產(chǎn)品大都具備UPS功能，符合各國使用。</p><p style="text-indent:25px">安防監(jiān)控電源好壞選購時考慮的幾個要素：1.用途明確，有的放矢電源和安防設(shè)備是配套存在，不同電源輸出功率都不同，工作狀況也不一樣，在選購電源時，只有針對自己所使用的范圍有明確的了解，才能選購出正確的電源產(chǎn)品。2.防雨，防浪，防雷擊，散熱功能這一點(diǎn)主要針對室外監(jiān)控電源而言。大雨，強(qiáng)雷，暴曬——室外充滿各種不可控的氣候因素，而要保證365天不間斷運(yùn)作，電源產(chǎn)品必須有面對各種情景的應(yīng)變和防護(hù)能力。其中散熱功能與之相對的是外殼的耐高溫功能，一般外殼耐高溫要達(dá)到60°，現(xiàn)在市場較高是65°。3.品牌電源，質(zhì)量保證品牌是一個產(chǎn)品的臉面。撐得起一個面子的品牌，必然是歷史悠久，信譽(yù)度高，能夠長期為客戶提供品質(zhì)產(chǎn)品和服務(wù)的企業(yè)。因此，選購電源產(chǎn)品時，較好選擇品質(zhì)好，信譽(yù)有保證的企業(yè)購買。如深圳市小耳朵電源有限公司，XED電源品牌已經(jīng)深入人心，現(xiàn)場也有相應(yīng)的電源測試儀，對于電源產(chǎn)品的質(zhì)量，各類參數(shù)，都可以進(jìn)行當(dāng)場測試。對POE受電設(shè)備的要求是必須同時支持兩種供電方式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海安防集中電源廠家推薦,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725389540717/2945405.png"></div><p style="text-indent:25px">監(jiān)控系統(tǒng)中電源安裝及電源線選擇方法：視頻監(jiān)控系統(tǒng)中攝像機(jī)的電源供電是保證監(jiān)控設(shè)備正?？煽窟\(yùn)行的電源供給。如何合理布置監(jiān)控系統(tǒng)的電源安裝及電源線選擇呢?攝像機(jī)的電源設(shè)置根據(jù)攝像機(jī)是在控制主機(jī)邊上還是比較遠(yuǎn)的距離，如果比較近的就直接在主機(jī)旁邊安裝大功率的直流穩(wěn)壓電源，將多個攝像機(jī)連接到這個電源上，直流電源功率的大于攝像機(jī)的功率總和就可以了。如果距離較遠(yuǎn)的應(yīng)該采用220V交流電源分配到攝像機(jī)邊上再通過穩(wěn)壓電源進(jìn)行變壓給攝像機(jī)供電，220V交流電源線應(yīng)與視頻線距離應(yīng)大于30公分，避免磁場干擾，影響圖像傳送質(zhì)量。外殼采用劣質(zhì)塑料電源外殼為電源重要保護(hù)，避免外力損壞電源或發(fā)生觸電事故。青島安防電源采購</p><p style="text-indent:25px">蓄電池經(jīng)常壞，也沒有起到斷電維持系統(tǒng)正常運(yùn)行的能力。上海安防集中電源廠家推薦</p><p style="text-indent:25px">下面來列舉幾項(xiàng)安防監(jiān)控電源的注意事項(xiàng)：外殼采用劣質(zhì)塑料電源外殼為電源重要保護(hù)，避免外力損壞電源或發(fā)生觸電事故。部分不良商家生產(chǎn)安防監(jiān)控所用的便宜劣質(zhì)塑料外殼，在使用較長時間后或放在戶外環(huán)境使用，會發(fā)生變色、外殼開裂現(xiàn)象。危害：假若電源進(jìn)水，輕則損壞電源，重則燒壞監(jiān)控?cái)z像頭，甚至發(fā)生觸電事故，傷及人身安全。選用劣質(zhì)電源，存在各種潛在的不必要風(fēng)險(xiǎn)故障。部分劣質(zhì)電源在前期使用并未出現(xiàn)明顯問題，但在使用一段時期后容易出現(xiàn)各種故障，給監(jiān)控系統(tǒng)帶來以上所述的傷害，給選購者帶來不必要的經(jīng)濟(jì)損失或聲譽(yù)損失。即使部分不良商家提供保修、包換服務(wù)，但其質(zhì)保服務(wù)對象很少于電源，對于劣質(zhì)電源所造成的附帶經(jīng)濟(jì)損失（如燒壞監(jiān)控?cái)z像頭等），則不承擔(dān)任何責(zé)任。因此，建議各位選購安防監(jiān)控電源時，一定要擦亮眼睛，別被低價蒙騙，一定要看清選購的安防監(jiān)控電源的電路設(shè)計(jì)。還有一般不良商家，給您承諾安防監(jiān)控電源長期包換，但是很有可能給您帶來上述安防監(jiān)控電源以外的損失。比如：人工，設(shè)備等等。上海安防集中電源廠家推薦</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2946566.html</p></div></div></div></div></div><div id="qkrdq88" class="page-right twoColRt"><div id="bv2gqnp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gl8rdp8" class="recomPic likePro"><a 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