龔家軍，劉國(guó)臻
（十堰市氣象局，湖北 十堰 442000）
摘要：針對(duì)防雷檢測(cè)工作中經(jīng)常出現(xiàn)的接地電阻值讀數(shù)值不穩(wěn)定、偏大或偏小，甚至出現(xiàn)檢測(cè)值為負(fù)值（即偏離真值）情況的現(xiàn)狀，從接地電阻測(cè)試儀原理出發(fā)，闡述了防雷裝置檢測(cè)的方法；歸納總結(jié)了造成防雷裝置接地電阻測(cè)量值偏離真值的八大常見(jiàn)原因，并分別提出了避免或減小接地電阻值偏離真值的方法。
關(guān)鍵詞：防雷檢測(cè)；接地電阻；測(cè)試原理；偏離真值原因；避免或減小
中圖分類(lèi)號(hào)：TM08 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1672-4984(2006)03-0075-03
Discussion on measurement deviation of true value of lightening proteetion earth resistance
GONG Jia-jun， LIU Guo-zhen
(Shiyan Meteorological Bureau, Shiyan 442000，China)
Abstract: In view of the lightening protection examination, the earth resistance value appears frequently unstable, large or small, even appears minus examination value. These are deviation from true value. Base on the earth resistance tester principle, the author first elaborated the lightning protection device examination method, then summarized the eight common causes that deviation often occurred and last proposed methods to avoid or reduce the earth resistance value test deviation.
Key words: Lightening protection examination; Earth resistance; Test principle；Deviation true value reason；Avoids or reduces
