Closed Circuit Television (CCTV) Survey is a method that is used to inspect and evaluate the condition of building drainage pipes and conduits. It involves the use of specialized cameras mounted on flexible rods or robotic devices to capture real-time video footage of the interior of the pipes.

 

By visually examining the footage, professionals can determine the extent of any damage, plan necessary repairs or maintenance, and ensure the optimal functioning of the drainage infrastructure. CCTV surveys are cost-effective, non-invasive, and provide valuable information for maintaining the efficiency and longevity of building drainage systems.

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閉路電視（CCTV）測量是一種用於檢查和評估建築物排水管道及其狀況的方法。它涉及使用安裝在柔性桿或機器人設備上的專用攝像機以記錄管道內部的實時影片。

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通過對影片進行可視化檢查，專業人士可以確定任何損壞的程度、計劃必要的修理，確保排水基礎設施的最佳功能。CCTV測量具有成本效益高、非侵入性等優勢，為維護建築排水系統的效率和壽命提供了寶貴的信息。