青島安防電源采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電源在門禁報(bào)警系統(tǒng)的應(yīng)用及選擇：1、有效的防雷保護(hù)產(chǎn)品是否有防雷保護(hù)的判斷：①目測(cè)電源上是否有保護(hù)電路的設(shè)計(jì)。（此方法適合對(duì)電路硬件有研究人士）。②了解廠家在防雷的技術(shù)上面是否有技術(shù)的積累，如產(chǎn)品可靠性的實(shí)際演示。相關(guān)產(chǎn)品的防雷檢測(cè)報(bào)告等等"><meta name="keywords" content="青島安防電源采購(gòu),安防"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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href="http://www.cdcfah.com/cp/second-aqfh_afjksb/">安防監(jiān)控設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-afjksb_jiemaqiut/">解碼器</a>?青島安防電源采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)</p><div id="9pj9hjt" class="leftbox clearfix"><h1>青島安防電源采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)</h1><div id="lr7xz9t" class="proBig"><div id="thznjhh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725481952817/7903454.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="l9vbrfp" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725481952817/7903454.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="flzfp7f" 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>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>青島安防電源采購(gòu),安防</p><p><span>***更新：</span>2021-01-21 12:14:24</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="bfrn5hd" 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(hào)德泰工業(yè)區(qū)1號(hào)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="tzfdf9n" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7d9r77d" class="box"><p><p style="text-indent:25px">電源在門禁報(bào)警系統(tǒng)的應(yīng)用及選擇：1、有效的防雷保護(hù)產(chǎn)品是否有防雷保護(hù)的判斷：①目測(cè)電源上是否有保護(hù)電路的設(shè)計(jì)。（此方法適合對(duì)電路硬件有研究人士）。②了解廠家在防雷的技術(shù)上面是否有技術(shù)的積累，如產(chǎn)品可靠性的實(shí)際演示。相關(guān)產(chǎn)品的防雷檢測(cè)報(bào)告等等，青島安防電源采購(gòu)，青島安防電源采購(gòu)。2、寬溫度適應(yīng)范圍溫度適應(yīng)范圍在-40度~85度之內(nèi)，就可以滿足要求了。具體的測(cè)試方法可以要求廠家配合提供，青島安防電源采購(gòu)，或者在質(zhì)保上能在合同條款明確以保證自己的合法權(quán)益。3、對(duì)后備電池智能充放電管理電源的充放電管理功能，主要是避免蓄電池過充而損壞蓄電池，也不會(huì)因?yàn)檫^度放電后重新充電，出現(xiàn)因充電電流過大而拉低其他設(shè)備的電流供應(yīng)，造成系統(tǒng)不穩(wěn)定的情況。一定要看清選購(gòu)的安防監(jiān)控電源的電路設(shè)計(jì)。青島安防電源采購(gòu)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島安防電源采購(gòu),安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725481952817/7903454.png"></div><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。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(duì)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。青島安防電源采購(gòu)如果插座多就用分隔就近取電，如果不多那就用會(huì)集的就可以。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島安防電源采購(gòu),安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725467128676/2991216.png"></div><p style="text-indent:25px">電源與工程計(jì)算：這個(gè)問題經(jīng)常讓年輕沒有經(jīng)驗(yàn)的工程師為難，很多方案在實(shí)施的時(shí)候都發(fā)現(xiàn)當(dāng)初設(shè)計(jì)的電源容量不夠，需要追加設(shè)備，造成了與甲方的矛盾和誤解，實(shí)際上，由于攝像機(jī)在啟動(dòng)瞬間，啟動(dòng)電流很大，再加上工程上遠(yuǎn)距離傳輸?shù)木€路損耗【P線損=I2*R，線路損耗電阻R＝ρ（L／S），ρ為導(dǎo)線的電阻率，ρ的具體參數(shù)可以咨詢線纜廠家，L為導(dǎo)線長(zhǎng)度單位m，S為導(dǎo)線截面積mm2】，所以，攝像機(jī)需要的電源，不是簡(jiǎn)單地把所有攝像機(jī)的額定功率相加。正確的做法是把整個(gè)監(jiān)控系統(tǒng)的攝像機(jī)的額定功率相加再乘以1.3倍來滿足瞬間啟動(dòng)電功率，這個(gè)才是攝像機(jī)實(shí)際需要的功率，然后再加上約30%的線路傳輸損耗，較后再加上30%的余量，作為將來擴(kuò)容使用。</p><p style="text-indent:25px">點(diǎn)對(duì)點(diǎn)供電的優(yōu)點(diǎn)：1、檢修簡(jiǎn)單，更換電源簡(jiǎn)易因?yàn)槊總€(gè)攝像機(jī)都有自立的安防監(jiān)控電源，在攝像機(jī)出現(xiàn)故障的時(shí)候，可以迅速就出現(xiàn)故障的攝像機(jī)進(jìn)行故障排查。若檢查出因安防監(jiān)控電源引起的故障，*需對(duì)單個(gè)故障電源進(jìn)行修理貨更換。2、避免出現(xiàn)監(jiān)控系統(tǒng)癱瘓現(xiàn)象集中供電模式下的供電系統(tǒng)一旦出現(xiàn)問題，且沒有采用UPS，將會(huì)導(dǎo)致整個(gè)監(jiān)控系統(tǒng)無法正常工作，陷入癱瘓狀態(tài)；而在自立供電模式下，因安防監(jiān)控電源的故障，而導(dǎo)致單個(gè)或數(shù)個(gè)攝像機(jī)無法工作，避免出現(xiàn)監(jiān)控系統(tǒng)癱瘓現(xiàn)象。點(diǎn)對(duì)點(diǎn)供電的缺點(diǎn)1、成本過高多個(gè)自立安防監(jiān)控電源的成本之和，一般要比同等功率輸出的集中電源要高2、遭遇外力破壞的幾率更高自立安防監(jiān)控電源往往與攝像機(jī)距離較近，特別是室外條件下，更容易遭受日曬雨淋、雷擊等外力破壞因素的影響。因此選擇戶外**的自立安防監(jiān)控電源，尤其要注重該自立安防監(jiān)控電源的防護(hù)性能。3、每個(gè)點(diǎn)都要安裝一個(gè)電源，施工較麻煩如果選擇線性電源，建議不要將線性電源和其他設(shè)備放在同一個(gè)設(shè)備箱中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島安防電源采購(gòu),安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725420283124/8321074.png"></div><p style="text-indent:25px">監(jiān)控?cái)z像機(jī)電源功率配置的技術(shù)問題：監(jiān)控?cái)z像機(jī)一般都會(huì)表明DC12V/AC24V通用，因此，在現(xiàn)在比較的常用的PoE供電、集中供電和自立供電三種供電方式下，需要選擇AC 24V的監(jiān)控電源，因?yàn)橥瑯拥膫鬏斁嚯x，電壓越高，損耗越小。電壓高了，負(fù)載就能得到比較充足的電壓。電源選擇容易，但是并不是所有的電壓都是穩(wěn)定的，因此，如何合理配置整個(gè)監(jiān)控系統(tǒng)的監(jiān)控?cái)z像機(jī)電源功率就成為了很多年輕沒有經(jīng)驗(yàn)的工程師為難了，而很多方案在實(shí)施的時(shí)候都發(fā)現(xiàn)當(dāng)初設(shè)計(jì)的電源容量不夠，需要追加設(shè)備，造成和甲方扯皮現(xiàn)象。實(shí)際上，由于攝像機(jī)在啟動(dòng)瞬間，啟動(dòng)電流很大，再加上工程上遠(yuǎn)距離傳輸?shù)膿p耗，所以，監(jiān)控?cái)z像機(jī)需要的電源，不是簡(jiǎn)單地把所有攝像機(jī)的額定功率相加。在接個(gè)單個(gè)電源線接頭，再把單個(gè)電源線接頭和監(jiān)控?cái)z像頭電源接頭相連接即可。青島安防電源采購(gòu)</p><p style="text-indent:25px">從輸出性質(zhì)可分為穩(wěn)壓電源和穩(wěn)流電源及集穩(wěn)壓、穩(wěn)流于一身的穩(wěn)壓穩(wěn)流（雙穩(wěn)）電源。青島安防電源采購(gòu)</p><p style="text-indent:25px">POE供電主要有以下幾種方式：1、交換機(jī)和終端都支持POE這種方法PoE交換機(jī)直接通過網(wǎng)線接到支持PoE供電的無線AP和網(wǎng)絡(luò)攝像機(jī)上，這種方法較簡(jiǎn)單，但也需要注意如下兩點(diǎn)： 1、確定PoE交換機(jī)以及無線AP或者網(wǎng)絡(luò)攝像機(jī)是否是標(biāo)準(zhǔn)的PoE設(shè)備 2、要仔細(xì)確認(rèn)購(gòu)買的網(wǎng)線的規(guī)格，網(wǎng)線質(zhì)量很關(guān)鍵，質(zhì)量不好的網(wǎng)線會(huì)導(dǎo)致AP或者IPC無法受電或者不斷重啟。2、交換機(jī)支持POE，終端不支持POE這種方案PoE交換機(jī)出來接PoE分離器，PoE分離器將電源分離成數(shù)據(jù)信號(hào)和電力，有兩根輸出線，一根是電力輸出線，一根是網(wǎng)絡(luò)數(shù)據(jù)信號(hào)輸出線即普通網(wǎng)線。電力輸出有5V/9/12V等，可以匹配各種DC輸入的非PoE受電終端，支持IEEE 802.3af/802.3at標(biāo)準(zhǔn)。數(shù)據(jù)信號(hào)輸出線即普通網(wǎng)線直接接到非PoE受電終端的網(wǎng)口即可。青島安防電源采購(gòu)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2946894.html</p></div></div></div></div></div><div id="pv7tr5d" class="page-right twoColRt"><div id="fddj75z" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zfhxvrx" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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