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貴州防(fang)(fang)雷(lei)(lei)公司淺談防(fang)(fang)雷(lei)(lei)設備(bei)就是(shi)通過(guo)現代電(dian)學以(yi)(yi)及其(qi)它技術來(lai)防(fang)(fang)止被雷(lei)(lei)擊中(zhong)的(de)設備(bei)。防(fang)(fang)雷(lei)(lei)設備(bei)從類型上看大體可以(yi)(yi)分為:電(dian)源(yuan)防(fang)(fang)雷(lei)(lei)器(qi)(qi)、電(dian)源(yuan)保護(hu)插座、天饋線(xian)保護(hu)器(qi)(qi)、信號防(fang)(fang)雷(lei)(lei)器(qi)(qi)、防(fang)(fang)雷(lei)(lei)測(ce)試(shi)工具、測(ce)量和控制系統防(fang)(fang)雷(lei)(lei)器(qi)(qi)、地(di)極保護(hu)器(qi)(qi)。
發展
電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)普遍使用促進了防雷(lei)(lei)(lei)(lei)(lei)產品的(de)(de)(de)發展,當(dang)(dang)高(gao)(gao)壓(ya)(ya)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)網為千家萬戶提(ti)供動力和照(zhao)明時(shi)(shi),雷(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)也大量危害(hai)高(gao)(gao)壓(ya)(ya)輸(shu)(shu)變電(dian)(dian)(dian)(dian)(dian)設(she)備。高(gao)(gao)壓(ya)(ya)線架設(she)高(gao)(gao)、距離長、穿越地形復雜,容易被(bei)(bei)雷(lei)(lei)(lei)(lei)(lei)擊(ji)中(zhong)。避雷(lei)(lei)(lei)(lei)(lei)針的(de)(de)(de)保護范圍不足以保護上(shang)千公里的(de)(de)(de)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)線,因此避雷(lei)(lei)(lei)(lei)(lei)線作為保護高(gao)(gao)壓(ya)(ya)線的(de)(de)(de)新型接閃器就應(ying)(ying)(ying)運(yun)而生。在(zai)高(gao)(gao)壓(ya)(ya)線獲得保護后,與高(gao)(gao)壓(ya)(ya)線連接的(de)(de)(de)發、配電(dian)(dian)(dian)(dian)(dian)設(she)備仍(reng)然被(bei)(bei)過(guo)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)損壞,人們發現(xian)這是由于 “感(gan)(gan)應(ying)(ying)(ying)雷(lei)(lei)(lei)(lei)(lei)”在(zai)作怪。(感(gan)(gan)應(ying)(ying)(ying)雷(lei)(lei)(lei)(lei)(lei)是因為直擊(ji)雷(lei)(lei)(lei)(lei)(lei)放電(dian)(dian)(dian)(dian)(dian)而感(gan)(gan)應(ying)(ying)(ying)到(dao)附近的(de)(de)(de)金屬導體(ti)(ti)中(zhong)的(de)(de)(de),感(gan)(gan)應(ying)(ying)(ying)雷(lei)(lei)(lei)(lei)(lei)可通過(guo)兩種(zhong)不同(tong)的(de)(de)(de)感(gan)(gan)應(ying)(ying)(ying)方(fang)式侵入(ru)導體(ti)(ti),一是靜電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)應(ying)(ying)(ying):當(dang)(dang)雷(lei)(lei)(lei)(lei)(lei)云中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)荷(he)積聚時(shi)(shi),附近的(de)(de)(de)導體(ti)(ti)也會感(gan)(gan)應(ying)(ying)(ying)上(shang)相反的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)荷(he),當(dang)(dang)雷(lei)(lei)(lei)(lei)(lei)擊(ji)放電(dian)(dian)(dian)(dian)(dian)時(shi)(shi),雷(lei)(lei)(lei)(lei)(lei)云中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)荷(he)迅(xun)速(su)釋放,而導體(ti)(ti)中(zhong)原來被(bei)(bei)雷(lei)(lei)(lei)(lei)(lei)云電(dian)(dian)(dian)(dian)(dian)場束縛住的(de)(de)(de)靜電(dian)(dian)(dian)(dian)(dian)也會沿(yan)導體(ti)(ti)流(liu)動尋找(zhao)釋放通道(dao),就會在(zai)電(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)形成(cheng)電(dian)(dian)(dian)(dian)(dian)。