預防維護

有計劃地進行主動性、預防性維護,保證系統(tǒng)運行穩(wěn)定可靠。根據大修周期，利用大修進行一次預防性的維護，以掌握系統(tǒng)運行狀態(tài),消除故障隱患。大修期間對DCS 系統(tǒng)應進行徹底、全面的維護，內容包括：

1） 系統(tǒng)冗余測試: 對冗余電源、服務器、控制器、通訊網絡進行冗余測試。操作站、控制站停電檢修。包括計算機內部、控制站機籠、電源箱等部件的灰塵清理。

2） 系統(tǒng)供電線路檢修。并對UPS進行供電能力測試和實施放電操作。

3） 接地系統(tǒng)檢修。包括端子檢查、對接地電阻測試。

大修后系統(tǒng)維護負責人應確認條件具備方可上電，并應嚴格遵照上電步驟進行。



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