Answer from Ningbo Changshi: underground cable pulling presents unique challenges that require careful planning and specialized equipment. The most significant challenges are:

• Friction and Tension Buildup: The primary challenge is the high friction created as a heavy cable is pulled through a conduit, especially around multiple bends. This friction can lead to a rapid increase in tension, risking damage to the cable.

  • Solution: Overcome this with meticulous route planning to minimize bends, the use of a high-quality lubricant, and most importantly, a controlled pulling machine with a tension meter to ensure the force never exceeds the cable's safe limit.

• Duct Integrity and Obstructions: Conduits may have unseen irregularities, sharp edges, or debris that can snag the cable and cause damage.

  • Solution: A thorough pre-pull cleaning and proving process using mandrels and brushes is essential. This ensures the duct is clear before the expensive cable is even on-site.

• Complex Terrain and Lack of Space: Urban and industrial projects often involve manholes and conduits in tight, confined spaces, making equipment setup difficult.

  • Solution: We offer compact, high-performance equipment designed for these challenging environments, such as hydraulic winches with smaller footprints and a variety of rollers and guides to handle tight bends.

Proper planning and using the right tools are key to turning these challenges into successful project outcomes.