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電力電纜

電力電纜在運行中的常見故障

發布日期：2022-10-09 點擊率：78

　　電纜運行中的常見故障主要有：

　　① 機械損傷：由于管理不嚴，施工不當，電纜直接受外力損傷;

　　② 鉛包疲勞、龜裂、漲裂：由于安裝條件不良、電纜質量不良或電纜長期過負荷等原因引起;

　　③ 戶外電纜終端頭浸水爆炸：原因是設計不良、施工不當和運行維護不良;

　　④ 中間接頭爆炸：原因是設計不良、超負荷、導體連接不良、鉛封不良進水等;

　　⑤ 熱擊穿：長期過載，散熱不良等原因引起;

　　⑥ 過電壓擊穿：原因是雷擊侵入波過電壓或內部過電壓;

　　⑦ 護層腐蝕：原因是地下電流的電解腐蝕或化學腐蝕使護層損壞。


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