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監控(kong)安防系統 工程檢測實(shi)用方法
時間:2018-11-07 來源(yuan):本站 瀏(liu)覽(lan):1906次
監控(kong)安(an)防系統 工程檢(jian)測實(shi)用(yong)方法
如(ru)今安(an)防監(jian)控(kong)工(gong)程在城市建設過程中應用(yong)越來(lai)越廣泛,如(ru)果(guo)工(gong)程出現(xian)問題(ti)會給(gei)使用(yong)方(fang)造成損失(shi)。為了將(jiang)安(an)防監(jian)控(kong)工(gong)程做好,真正(zheng)讓(rang)用(yong)戶(hu)滿意放心,安(an)防工(gong)程必須經過有(you)公安(an)部(bu)授權的檢(jian)測機構檢(jian)測合格(ge)后(hou)方(fang)能投入使用(yong)。
安(an)防(fang)監(jian)(jian)控系(xi)(xi)統工(gong)(gong)程(cheng)大多依(yi)據GB50348——2004《安(an)全防(fang)范工(gong)(gong)程(cheng)技(ji)(ji)術規(gui)范》和(he)GA/T669《城市監(jian)(jian)控報警(jing)聯網系(xi)(xi)統通用技(ji)(ji)術要求(qiu)》及各個地方招標文件的技(ji)(ji)術條款設計實施的。安(an)防(fang)監(jian)(jian)控系(xi)(xi)統工(gong)(gong)程(cheng)的檢驗(yan)內(nei)容(rong)主要包(bao)括:系(xi)(xi)統性(xing)能、系(xi)(xi)統功(gong)能、電源供電、設備安(an)全性(xing)、防(fang)雷(lei)接地、電磁兼容(rong)性(xing)和(he)安(an)裝施工(gong)(gong)工(gong)(gong)藝等(deng)。
在工(gong)(gong)程(cheng)現場(chang)檢驗(yan)之(zhi)前,工(gong)(gong)程(cheng)的(de)(de)(de)受檢方(fang)(fang)應事先提(ti)交與(yu)工(gong)(gong)程(cheng)相關的(de)(de)(de)各項(xiang)資料:包括施(shi)(shi)工(gong)(gong)合同、技(ji)術(shu)方(fang)(fang)案(an)、使用設備清單、相關產品的(de)(de)(de)檢驗(yan)報告(gao)、隱蔽工(gong)(gong)程(cheng)的(de)(de)(de)驗(yan)收(shou)報告(gao)、安防工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)資質(zhi),以及工(gong)(gong)程(cheng)試(shi)運行期間的(de)(de)(de)運行記錄等。其中(zhong)施(shi)(shi)工(gong)(gong)技(ji)術(shu)方(fang)(fang)案(an)作為檢驗(yan)的(de)(de)(de)重要(yao)依據(ju),要(yao)嚴格按照國家的(de)(de)(de)相關安防技(ji)術(shu)標準(zhun)執(zhi)行。檢驗(yan)人員還(huan)要(yao)聽取使用方(fang)(fang)對有(you)關工(gong)(gong)程(cheng)特殊要(yao)求的(de)(de)(de)說明,并(bing)了解施(shi)(shi)工(gong)(gong)方(fang)(fang)在施(shi)(shi)工(gong)(gong)過程(cheng)中(zhong)遇到(dao)的(de)(de)(de)問(wen)題。
一、視頻監控系統(性能功能)檢測
依據(ju)工(gong)程技術方案的(de)(de)設(she)備清單,一要(yao)(yao)查(cha)看(kan)開(kai)通路(lu)數(shu)情(qing)況是否符(fu)合(he)設(she)計要(yao)(yao)求;二(er)要(yao)(yao)查(cha)看(kan)圖(tu)像(xiang)質(zhi)量(liang)。圖(tu)像(xiang)質(zhi)量(liang)是判(pan)別整個工(gong)程優(you)劣的(de)(de)最直觀(guan)的(de)(de)依據(ju),圖(tu)像(xiang)的(de)(de)質(zhi)量(liang)主要(yao)(yao)取決于前端(duan)攝像(xiang)機(ji)的(de)(de)分辨率。按照(zhao)GB50198《民用閉(bi)路(lu)監視(shi)電視(shi)系統工(gong)程技術規(gui)范》規(gui)定,彩(cai)色(se)電視(shi)機(ji)線(xian)(xian)數(shu)不低于270線(xian)(xian),回放不低于220線(xian)(xian)。查(cha)看(kan)每(mei)一路(lu)圖(tu)像(xiang)是否符(fu)合(he)要(yao)(yao)求;三要(yao)(yao)查(cha)看(kan)每(mei)路(lu)圖(tu)像(xiang)切換情(qing)況,保證圖(tu)像(xiang)的(de)(de)監視(shi)位(wei)置符(fu)合(he)要(yao)(yao)求,需監視(shi)的(de)(de)部位(wei)無盲區、無死角。
二、安裝與施工工藝的檢測
在整個(ge)安(an)防工(gong)(gong)程(cheng)當中,設(she)(she)備(bei)的(de)(de)安(an)裝與(yu)(yu)(yu)施工(gong)(gong)工(gong)(gong)藝(yi)的(de)(de)好壞,直接關(guan)系到系統是否(fou)安(an)全可靠運(yun)行的(de)(de)保證。檢(jian)測(ce)(ce)過程(cheng)中的(de)(de)重(zhong)點(dian)為:一(yi),設(she)(she)備(bei)的(de)(de)安(an)裝。要(yao)清點(dian)設(she)(she)備(bei)安(an)裝的(de)(de)數量、安(an)裝位置(zhi)、監控(kong)中心機(ji)柜(ju)、使用(yong)面積是否(fou)合理、是否(fou)符合設(she)(she)計要(yao)求。二(er),施工(gong)(gong)工(gong)(gong)藝(yi)檢(jian)測(ce)(ce)重(zhong)點(dian)為首先要(yao)查(cha)看布線(xian)是否(fou)捆扎整齊;其次二(er)要(yao)查(cha)看信號線(xian)與(yu)(yu)(yu)電源線(xian)是否(fou)分開排列(lie),防止信號之間互相影響(xiang);最后(hou)要(yao)查(cha)看所有(you)設(she)(she)備(bei)的(de)(de)進(jin)處線(xian)是否(fou)有(you)永久(jiu)性標志或標示,以(yi)方便日后(hou)的(de)(de)維護與(yu)(yu)(yu)保養;對于隱蔽(bi)安(an)裝的(de)(de)線(xian)纜(lan)、光(guang)纜(lan)無法現場檢(jian)驗(yan)檢(jian)測(ce)(ce)的(de)(de)部分,應要(yao)求收(shou)檢(jian)方提供詳實的(de)(de)隱蔽(bi)工(gong)(gong)程(cheng)驗(yan)收(shou)單或檢(jian)驗(yan)報(bao)告(gao)。
三(san)、電源供電系統(tong)檢(jian)測
電(dian)源供(gong)(gong)電(dian)系統(tong)是(shi)(shi)保證整個系統(tong)工(gong)程(cheng)安(an)全(quan)正常(chang)工(gong)作的(de)重要(yao)(yao)部(bu)分,在(zai)檢(jian)驗(yan)(yan)驗(yan)(yan)收(shou)過程(cheng)中要(yao)(yao)嚴(yan)格按照設(she)(she)計文件或施工(gong)合同逐項進行(xing),其重點(dian)(dian)是(shi)(shi)查(cha)看系統(tong)的(de)供(gong)(gong)電(dian)方式。對于(yu)重點(dian)(dian)工(gong)程(cheng)要(yao)(yao)求有兩路(lu)市電(dian)與(yu)UPS電(dian)源供(gong)(gong)電(dian):一,如為市電(dian)供(gong)(gong)電(dian)的(de)要(yao)(yao)檢(jian)測其市電(dian)供(gong)(gong)電(dian)電(dian)壓是(shi)(shi)否正常(chang)穩定(ding);二,UPS電(dian)源供(gong)(gong)電(dian)是(shi)(shi)保證或避免系統(tong)因突然市電(dian)斷(duan)(duan)電(dian)而造(zao)成(cheng)數據丟失和(he)設(she)(she)備(bei)(bei)(bei)的(de)損壞。在(zai)檢(jian)測驗(yan)(yan)收(shou)過程(cheng)中:一要(yao)(yao)進行(xing)斷(duan)(duan)市電(dian)試驗(yan)(yan),查(cha)看設(she)(she)備(bei)(bei)(bei)運行(xing)情況(kuang)及UPS電(dian)源供(gong)(gong)電(dian)情況(kuang);二要(yao)(yao)在(zai)斷(duan)(duan)市電(dian)試驗(yan)(yan)后實(shi)地查(cha)看所用設(she)(she)備(bei)(bei)(bei)是(shi)(shi)否真正實(shi)現UPS電(dian)源供(gong)(gong)電(dian)、設(she)(she)備(bei)(bei)(bei)是(shi)(shi)否工(gong)作正常(chang);三(san)要(yao)(yao)檢(jian)測或計算(suan)UPS電(dian)源的(de)供(gong)(gong)電(dian)時(shi)間(jian)與(yu)容(rong)量,是(shi)(shi)否滿足符合設(she)(she)計與(yu)使用要(yao)(yao)求。
四、防雷(lei)與接地措施檢測
對于安防系(xi)統工程來講,防雷與(yu)接(jie)地最大的(de)(de)威(wei)脅一(yi)是(shi)(shi)直擊雷對安裝(zhuang)(zhuang)在(zai)室(shi)外(wai)的(de)(de)前端設備(bei)的(de)(de)危害;二是(shi)(shi)感(gan)應(ying)(ying)雷對監控(kong)中心設備(bei)和(he)操(cao)作(zuo)人員的(de)(de)危害。防雷與(yu)接(jie)地措(cuo)施是(shi)(shi)保(bao)證(zheng)系(xi)統設備(bei)安全運行不被雷擊,減少損失的(de)(de)必(bi)要保(bao)證(zheng),應(ying)(ying)嚴格按照設計文件及GB50348——2004《安全防范(fan)工程技術規(gui)范(fan)》標準進行檢(jian)測(ce)。在(zai)檢(jian)測(ce)中一(yi)是(shi)(shi)要查(cha)看(kan)前端設備(bei)是(shi)(shi)否(fou)安裝(zhuang)(zhuang)避(bi)雷設備(bei),避(bi)雷設備(bei)的(de)(de)選型是(shi)(shi)否(fou)符合(he);二是(shi)(shi)查(cha)看(kan)連接(jie)線的(de)(de)選型與(yu)安裝(zhuang)(zhuang)是(shi)(shi)否(fou)符合(he);三是(shi)(shi)要測(ce)量接(jie)地電(dian)阻(zu)是(shi)(shi)否(fou)符合(he),對重點(dian)工程還應(ying)(ying)依(yi)據當地氣象(xiang)部(bu)門提供的(de)(de)檢(jian)測(ce)報告,綜合(he)檢(jian)驗情況,給予客觀的(de)(de)數據和(he)結論(lun)。
五、設備安全性和(he)電(dian)磁兼容性檢驗(yan)
在安(an)防工程系統中(zhong),設(she)備(bei)的(de)安(an)全性(xing)測試是(shi)為了(le)設(she)備(bei)在投入運(yun)行的(de)過程中(zhong),能夠保證操作者人身健康(kang)、安(an)全和設(she)備(bei)本身安(an)全技術要求。應按(an)照(zhao)工程系統中(zhong)的(de)設(she)備(bei)數量,按(an)照(zhao)比(bi)例(li)要求抽(chou)取設(she)備(bei),并逐(zhu)一(yi)對設(she)備(bei)的(de)耐壓、絕緣、泄漏、靜放電、抗擾度等進行測試驗收(shou)。