專業防(fang)雷(lei)器材,接地(di)降阻模(mo)塊,優(you)質石(shi)墨接地(di)線生產(chan)
某110kV擴建線(xian)路因擴容需要(yao)增設直線(xian)鐵塔。該地(di)(di)區(qu)地(di)(di)下(xia)(xia)河水位較(jiao)淺,地(di)(di)面−3m處(chu)即出(chu)現(xian)(xian)滲水現(xian)(xian)象。該地(di)(di)區(qu)地(di)(di)質條件較(jiao)差,為(wei)(wei)典型的(de)(de)(de)酸性土(tu)(tu)壤(rang),原有線(xian)路桿塔采用鍍鋅鋼接地(di)(di)材料,經挖掘(jue)發現(xian)(xian),鍍鋅鋼引下(xia)(xia)線(xian)在地(di)(di)下(xia)(xia)埋設部分已經嚴(yan)重腐(fu)蝕(shi)。考慮到此惡劣地(di)(di)質條件下(xia)(xia)金屬接地(di)(di)體極(ji)易發生(sheng)腐(fu)蝕(shi),工程采用本文所(suo)述的(de)(de)(de)石墨復合接地(di)(di)體提高桿塔接地(di)(di)裝置的(de)(de)(de)防腐(fu)性能。新建輸電(dian)線(xian)路鐵塔塔型為(wei)(wei)1D5−SDJ15,根據土(tu)(tu)壤(rang)電(dian)阻率(lv)的(de)(de)(de)測量結果進行土(tu)(tu)壤(rang)分層反演計算(suan),得到土(tu)(tu)壤(rang)分層情況為(wei)(wei):上層土(tu)(tu)壤(rang)電(dian)阻率(lv)為(wei)(wei)136Ω·m,土(tu)(tu)壤(rang)層厚度為(wei)(wei)0.3m左右(you),底層土(tu)(tu)壤(rang)由(you)于含水量較(jiao)高,土(tu)(tu)壤(rang)電(dian)阻率(lv)約為(wei)(wei)102Ω·m。