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監(jian)控安防系(xi)統 工(gong)程檢測實用方法

      如(ru)今安防監(jian)(jian)控工(gong)程在城市建設過(guo)程中應用(yong)越來越廣泛(fan)，如(ru)果(guo)工(gong)程出現問題會給使(shi)用(yong)方(fang)造(zao)成損(sun)失。為了將安防監(jian)(jian)控工(gong)程做好，真正(zheng)讓用(yong)戶滿(man)意放心，安防工(gong)程必須經過(guo)有公安部授(shou)權的(de)檢測機構(gou)檢測合格后方(fang)能投入使(shi)用(yong)。

      安(an)防(fang)監控系(xi)統(tong)工(gong)程(cheng)大多(duo)依(yi)據GB50348——2004《安(an)全防(fang)范工(gong)程(cheng)技術(shu)規范》和GA/T669《城市監控報警聯網系(xi)統(tong)通用技術(shu)要(yao)(yao)求》及各個地方招(zhao)標文件的技術(shu)條款設計實施的。安(an)防(fang)監控系(xi)統(tong)工(gong)程(cheng)的檢驗(yan)內容主要(yao)(yao)包括(kuo)：系(xi)統(tong)性(xing)能(neng)、系(xi)統(tong)功(gong)能(neng)、電(dian)源供(gong)電(dian)、設備(bei)安(an)全性(xing)、防(fang)雷接地、電(dian)磁兼容性(xing)和安(an)裝施工(gong)工(gong)藝等。

      在工程(cheng)現場檢(jian)(jian)驗之前，工程(cheng)的(de)(de)(de)受(shou)檢(jian)(jian)方(fang)(fang)應事(shi)先提交與工程(cheng)相(xiang)關(guan)(guan)的(de)(de)(de)各項資料：包括施(shi)(shi)工合(he)同、技術(shu)方(fang)(fang)案(an)(an)、使用設備(bei)清(qing)單、相(xiang)關(guan)(guan)產(chan)品的(de)(de)(de)檢(jian)(jian)驗報(bao)告(gao)、隱蔽工程(cheng)的(de)(de)(de)驗收報(bao)告(gao)、安防工程(cheng)施(shi)(shi)工資質(zhi)，以及工程(cheng)試運行期間的(de)(de)(de)運行記錄等。其中施(shi)(shi)工技術(shu)方(fang)(fang)案(an)(an)作為檢(jian)(jian)驗的(de)(de)(de)重要(yao)依據，要(yao)嚴格(ge)按(an)照國家的(de)(de)(de)相(xiang)關(guan)(guan)安防技術(shu)標準執(zhi)行。檢(jian)(jian)驗人員還要(yao)聽(ting)取使用方(fang)(fang)對有關(guan)(guan)工程(cheng)特殊要(yao)求的(de)(de)(de)說明，并了解施(shi)(shi)工方(fang)(fang)在施(shi)(shi)工過程(cheng)中遇到(dao)的(de)(de)(de)問題。

      一、視頻監控系統（性(xing)能功能）檢測

      依據工程(cheng)技術方案(an)的(de)設(she)備清單，一要(yao)(yao)查看開通路數情況是(shi)否符(fu)合(he)設(she)計要(yao)(yao)求(qiu)；二要(yao)(yao)查看圖(tu)(tu)像(xiang)(xiang)質量(liang)(liang)。圖(tu)(tu)像(xiang)(xiang)質量(liang)(liang)是(shi)判別整個工程(cheng)優劣(lie)的(de)最直觀的(de)依據，圖(tu)(tu)像(xiang)(xiang)的(de)質量(liang)(liang)主要(yao)(yao)取決于前端攝(she)像(xiang)(xiang)機的(de)分辨率。按照(zhao)GB50198《民(min)用閉路監(jian)視(shi)電(dian)視(shi)系(xi)統(tong)工程(cheng)技術規范》規定(ding)，彩色電(dian)視(shi)機線(xian)數不低于270線(xian)，回放(fang)不低于220線(xian)。查看每(mei)一路圖(tu)(tu)像(xiang)(xiang)是(shi)否符(fu)合(he)要(yao)(yao)求(qiu)；三要(yao)(yao)查看每(mei)路圖(tu)(tu)像(xiang)(xiang)切換(huan)情況，保證圖(tu)(tu)像(xiang)(xiang)的(de)監(jian)視(shi)位置(zhi)符(fu)合(he)要(yao)(yao)求(qiu)，需監(jian)視(shi)的(de)部位無盲區、無死(si)角。

      二、安裝與(yu)施工工藝的(de)檢測

      在整(zheng)個安(an)防工(gong)(gong)程當中(zhong)(zhong)，設備(bei)的安(an)裝與(yu)施(shi)工(gong)(gong)工(gong)(gong)藝的好(hao)壞，直接關系到系統是(shi)否安(an)全可靠運行的保證。檢(jian)測過程中(zhong)(zhong)的重(zhong)點為(wei)：一，設備(bei)的安(an)裝。要(yao)(yao)清點設備(bei)安(an)裝的數量(liang)、安(an)裝位置、監控中(zhong)(zhong)心機柜、使(shi)用面(mian)積是(shi)否合(he)理、是(shi)否符合(he)設計(ji)要(yao)(yao)求。二，施(shi)工(gong)(gong)工(gong)(gong)藝檢(jian)測重(zhong)點為(wei)首先(xian)要(yao)(yao)查(cha)看布線(xian)(xian)是(shi)否捆扎整(zheng)齊；其次二要(yao)(yao)查(cha)看信號線(xian)(xian)與(yu)電源(yuan)線(xian)(xian)是(shi)否分開排列，防止(zhi)信號之間互相影響(xiang)；最后要(yao)(yao)查(cha)看所(suo)有設備(bei)的進處線(xian)(xian)是(shi)否有永久性(xing)標志或標示(shi)，以方(fang)便日后的維護與(yu)保養；對(dui)于隱(yin)蔽安(an)裝的線(xian)(xian)纜(lan)、光纜(lan)無(wu)法(fa)現場檢(jian)驗(yan)檢(jian)測的部分，應要(yao)(yao)求收(shou)(shou)檢(jian)方(fang)提供詳實的隱(yin)蔽工(gong)(gong)程驗(yan)收(shou)(shou)單或檢(jian)驗(yan)報告(gao)。

      三、電(dian)源供(gong)電(dian)系統檢測(ce)

      電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)是保證(zheng)整(zheng)個系統(tong)工(gong)程安全正常(chang)(chang)工(gong)作(zuo)的重(zhong)要(yao)(yao)部分，在(zai)檢(jian)(jian)驗驗收(shou)過程中要(yao)(yao)嚴格按(an)照(zhao)設計(ji)文件或施工(gong)合(he)(he)同逐項進(jin)行(xing)，其(qi)重(zhong)點是查看系統(tong)的供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)方(fang)式。對于重(zhong)點工(gong)程要(yao)(yao)求有兩路市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)與UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)：一，如為市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)的要(yao)(yao)檢(jian)(jian)測其(qi)市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓是否(fou)(fou)正常(chang)(chang)穩(wen)定；二(er)，UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)是保證(zheng)或避(bi)免系統(tong)因突然(ran)市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)斷電(dian)(dian)(dian)(dian)(dian)(dian)而造成數據丟失和設備的損壞。在(zai)檢(jian)(jian)測驗收(shou)過程中：一要(yao)(yao)進(jin)行(xing)斷市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)試驗，查看設備運行(xing)情況及(ji)UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)情況；二(er)要(yao)(yao)在(zai)斷市(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)試驗后實地查看所用設備是否(fou)(fou)真正實現UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)、設備是否(fou)(fou)工(gong)作(zuo)正常(chang)(chang)；三要(yao)(yao)檢(jian)(jian)測或計(ji)算(suan)UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)時間與容量，是否(fou)(fou)滿足符合(he)(he)設計(ji)與使用要(yao)(yao)求。

      四、防(fang)雷與接地措(cuo)施檢測

      對于安防(fang)系統工程來講，防(fang)雷(lei)(lei)(lei)(lei)(lei)與接地最大的(de)威脅一是(shi)(shi)直擊(ji)雷(lei)(lei)(lei)(lei)(lei)對安裝(zhuang)在(zai)室外的(de)前(qian)(qian)端設備的(de)危害(hai)；二是(shi)(shi)感(gan)應雷(lei)(lei)(lei)(lei)(lei)對監(jian)控中心設備和操作(zuo)人(ren)員的(de)危害(hai)。防(fang)雷(lei)(lei)(lei)(lei)(lei)與接地措施是(shi)(shi)保證系統設備安全運行(xing)不被(bei)雷(lei)(lei)(lei)(lei)(lei)擊(ji)，減少損失的(de)必要保證，應嚴格(ge)按照設計文(wen)件及GB50348——2004《安全防(fang)范工程技術規(gui)范》標準(zhun)進行(xing)檢測。在(zai)檢測中一是(shi)(shi)要查看前(qian)(qian)端設備是(shi)(shi)否安裝(zhuang)避雷(lei)(lei)(lei)(lei)(lei)設備，避雷(lei)(lei)(lei)(lei)(lei)設備的(de)選(xuan)型是(shi)(shi)否符(fu)合；二是(shi)(shi)查看連接線的(de)選(xuan)型與安裝(zhuang)是(shi)(shi)否符(fu)合；三是(shi)(shi)要測量接地電阻是(shi)(shi)否符(fu)合，對重點工程還(huan)應依據當地氣象部(bu)門提(ti)供的(de)檢測報告，綜(zong)合檢驗情況(kuang)，給予客(ke)觀的(de)數據和結論。

      五、設備安全性和電(dian)磁兼容性檢驗

      在(zai)安(an)防工程(cheng)系統中，設(she)(she)備(bei)的安(an)全性測試是為了設(she)(she)備(bei)在(zai)投(tou)入運行的過程(cheng)中，能(neng)夠保證操作者人(ren)身(shen)健康、安(an)全和(he)設(she)(she)備(bei)本(ben)身(shen)安(an)全技術要求(qiu)。應按照工程(cheng)系統中的設(she)(she)備(bei)數量(liang)，按照比例要求(qiu)抽取設(she)(she)備(bei)，并逐一對(dui)設(she)(she)備(bei)的耐(nai)壓、絕緣(yuan)、泄漏、靜放電、抗擾度等進行測試驗收。