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大(da)地(di)(di)(di)網接地(di)(di)(di)電(dian)(dian)(dian)阻(zu)(zu)測試(shi)(shi)(shi)儀5A大(da)功率輸出，能在強(qiang)干擾(rao)環境下準確測得工頻50Hz下的數據(ju)(ju)。適用于測試(shi)(shi)(shi)各類接地(di)(di)(di)裝(zhuang)置(zhi)的工頻接地(di)(di)(di)阻(zu)(zu)抗(kang)、接地(di)(di)(di)電(dian)(dian)(dian)阻(zu)(zu)、輔助機等工頻特性(xing)參數，測量(liang)(liang)(liang)接地(di)(di)(di)裝(zhuang)置(zhi)之間的導(dao)通(tong)阻(zu)(zu)抗(kang)或電(dian)(dian)(dian)阻(zu)(zu)，測量(liang)(liang)(liang)土壤(rang)電(dian)(dian)(dian)阻(zu)(zu)率。 儀器根據(ju)(ju)《JJG984-2004接地(di)(di)(di)導(dao)通(tong)檢定規程(cheng)電(dian)(dian)(dian)阻(zu)(zu)測試(shi)(shi)(shi)儀》，《DL/T475-2006接地(di)(di)(di)裝(zhuang)置(zhi)特性(xing)參數測量(liang)(liang)(liang)導(dao)則》，《DL/T845.2-2004電(dian)(dian)(dian)阻(zu)(zu)測量(liang)(liang)(liang)裝(zhuang)置(zhi)通(tong)用技(ji)術條件第(di)二部分(fen)：工頻接地(di)(di)(di)電(dian)(dian)(dian)阻(zu)(zu)測