俗話說“水火無情”，消防(fang)系統(tong)(tong)自古以來就是(shi)人們非常(chang)重視的(de)(de)安全(quan)防(fang)護措施。而(er)消防(fang)系統(tong)(tong)中的(de)(de)防(fang)雷(lei)更是(shi)不(bu)(bu)容忽視，它能夠保障(zhang)消防(fang)系統(tong)(tong)中的(de)(de)電氣設備(bei)在(zai)雷(lei)電環(huan)境下不(bu)(bu)受浪涌干擾，安全(quan)穩定(ding)運行。今天，鈞(jun)和電子為您分(fen)享“消防(fang)系統(tong)(tong)防(fang)雷(lei)的(de)(de)要點”，具(ju)體(ti)如下：

要點(dian)一(yi)，電(dian)氣線路和信號線路的浪涌保護

    1.消防(fang)系統主機要做三級電源防(fang)護

三(san)級電(dian)(dian)(dian)(dian)源(yuan)(yuan)防護(hu)(hu)(hu)是指總配(pei)(pei)電(dian)(dian)(dian)(dian)房(fang)為(wei)(wei)第(di)一級電(dian)(dian)(dian)(dian)源(yuan)(yuan)防護(hu)(hu)(hu)、樓層的(de)配(pei)(pei)總開關為(wei)(wei)第(di)二級電(dian)(dian)(dian)(dian)源(yuan)(yuan)防護(hu)(hu)(hu)、消防系統主(zhu)(zhu)機的(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)供電(dian)(dian)(dian)(dian)為(wei)(wei)第(di)三(san)級電(dian)(dian)(dian)(dian)源(yuan)(yuan)防護(hu)(hu)(hu)。在電(dian)(dian)(dian)(dian)源(yuan)(yuan)附(fu)近安裝(zhuang)電(dian)(dian)(dian)(dian)源(yuan)(yuan)過(guo)電(dian)(dian)(dian)(dian)壓(ya)防護(hu)(hu)(hu)防雷箱(xiang)，確保防雷箱(xiang)的(de)地(di)線與電(dian)(dian)(dian)(dian)源(yuan)(yuan)地(di)線(或建筑物梁(liang)內(nei)主(zhu)(zhu)筋(jin))可靠連接在一起(qi)，一般要求接地(di)電(dian)(dian)(dian)(dian)阻(zu)必須達到10歐姆(mu)以下為(wei)(wei)合(he)格。

2.信號浪(lang)涌防(fang)護

與消防主(zhu)機(ji)連接(jie)的(de)設備主(zhu)要有(you)火(huo)災報警(jing)探頭、自動噴淋裝(zhuang)置、聯動控制、24伏(fu)直流(liu)電源(yuan)裝(zhuang)置、火(huo)警(jing)電話、火(huo)警(jing)廣播等，其兩(liang)端的(de)數據線(xian)路都必須串(chuan)接(jie)信(xin)(xin)號(hao)(hao)浪涌(yong)(yong)(yong)保護(hu)器(qi)。而音頻信(xin)(xin)號(hao)(hao)線(xian)路則必須串(chuan)接(jie)音頻浪涌(yong)(yong)(yong)保護(hu)器(qi)，直流(liu)電源(yuan)用直流(liu)電源(yuan)浪涌(yong)(yong)(yong)保護(hu)器(qi)，另外(wai)火(huo)災報警(jing)探頭很多情況(kuang)下(xia)傳輸的(de)是模擬(ni)感(gan)應(ying)信(xin)(xin)號(hao)(hao)，此類信(xin)(xin)號(hao)(hao)浪涌(yong)(yong)(yong)保護(hu)器(qi)要選擇插入損耗較(jiao)小的(de)類型來適配，確保信(xin)(xin)號(hao)(hao)通過(guo)浪涌(yong)(yong)(yong)保護(hu)器(qi)時不發生(sheng)衰減。

要點二，布線系統屏蔽與接地

防雷布線(xian)電(dian)(dian)(dian)(dian)磁屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)是(shi)利(li)用各種(zhong)金(jin)屬(shu)(shu)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)體來阻擋和衰減加在電(dian)(dian)(dian)(dian)子設備(bei)上的(de)(de)(de)電(dian)(dian)(dian)(dian)磁干擾(rao)或(huo)過(guo)(guo)電(dian)(dian)(dian)(dian)壓(ya)能量。具(ju)體可(ke)分為建筑物(wu)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)、設備(bei)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)和各種(zhong)線(xian)纜(lan)(包括(kuo)管(guan)道)之(zhi)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)。建筑物(wu)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)可(ke)利(li)用建筑物(wu)鋼筋、金(jin)屬(shu)(shu)構架、金(jin)屬(shu)(shu)門(men)屬(shu)(shu)、地(di)板等均相互(hu)連(lian)(lian)接在一起(qi)，形(xing)成(cheng)一個法拉第籠，并與地(di)網(wang)有可(ke)靠之(zhi)電(dian)(dian)(dian)(dian)氣連(lian)(lian)接，形(xing)成(cheng)初級屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)網(wang)。設備(bei)屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)在對(dui)電(dian)(dian)(dian)(dian)子設備(bei)耐(nai)過(guo)(guo)電(dian)(dian)(dian)(dian)壓(ya)水(shui)平(ping)施行多級屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)。屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)效(xiao)果首先取決(jue)于初級屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)網(wang)的(de)(de)(de)衰減程(cheng)度，其次取決(jue)于屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)層(ceng)對(dui)于射(she)電(dian)(dian)(dian)(dian)磁波的(de)(de)(de)反射(she)損(sun)耗和吸收損(sun)耗程(cheng)度。對(dui)入戶的(de)(de)(de)金(jin)屬(shu)(shu)管(guan)道、通信線(xian)路和電(dian)(dian)(dian)(dian)力線(xian)纜(lan)要(yao)在入戶前(qian)進行屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)(使(shi)用屏(ping)(ping)(ping)(ping)蔽(bi)(bi)(bi)線(xian)纜(lan)或(huo)穿金(jin)屬(shu)(shu)管(guan))接地(di)處理。

要點三，等電(dian)位連(lian)接

等(deng)電位(wei)(wei)(wei)(wei)連(lian)接是(shi)內(nei)部防雷裝置(zhi)中一個非(fei)常重要(yao)的(de)部分，目的(de)在(zai)于減少雷電流(liu)所引起之(zhi)電位(wei)(wei)(wei)(wei)差。等(deng)電位(wei)(wei)(wei)(wei)是(shi)用連(lian)接導(dao)(dao)線或(huo)過電壓(電涌)保護(hu)器將處在(zai)需(xu)要(yao)防護(hu)的(de)防雷裝置(zhi)、建筑(zhu)物的(de)金屬(shu)構架、金屬(shu)裝置(zhi)、外來之(zhi)導(dao)(dao)線、電氣裝置(zhi)、電信裝置(zhi)等(deng)連(lian)接，形成等(deng)電位(wei)(wei)(wei)(wei)連(lian)接網絡，以實現均(jun)壓等(deng)電位(wei)(wei)(wei)(wei)，防止需(xu)要(yao)防護(hu)空間的(de)火災、爆炸、生(sheng)命危險和設(she)備損壞(huai)。

綜上，消防系統防雷(lei)是非常(chang)重(zhong)要(yao)的安防措施，也(ye)是一項全面而(er)又(you)系統的防護工程(cheng)，需要(yao)引起高度(du)重(zhong)視并認真(zhen)落實(shi)。