
What are the necessary quality control checks during and after the cable laying process?
2025-08-14Quality control checks are essential to ensure the integrity and safety of the final installation. These checks are performed at various stages:
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Pre-installation: Before laying, the cable drum is inspected for any damage, and the cable's insulation is tested using a megger. The trench or duct is also inspected for any sharp objects or irregularities.
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During Installation: The pulling tension is continuously monitored to ensure it stays within safe limits. Rollers and guides are checked to ensure they are in proper alignment.
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Post-installation: After the cable is laid and before backfilling, a visual inspection is performed. A final insulation resistance test is conducted to verify the cable's integrity. Accurate records of the laying process, including pulling tension data, are documented for future reference.