Cable Pulling | Safe Pulling of Cables Using Manual Laying

Published 17 Jan 2020

Cable Drums

Cable Pulling | Safe Pulling of Cables Using Manual Laying

Manual Laying

For manual pulling in of the cable one thing that must be ensured is that the cable is on no account pulled over the flange of the cable drum.

If the cable needs to be pulled in in sections, due to local conditions, no rings (image 1) may be laid, since this means that the cable is inappropriately twisted by 90°. Combined with high forces of tension and various deflections this can lead to destruction of the protective coating (image 2).

The formation of loops can easily be seen in the above pictures. In narrow cable shafts and when being pulled the cables are exposed to considerable torsion, which can lead to severe damage of the cable (image 1 on left).

If the cable is to be laid out in sections this may only occur in so-called ‘figures of eight’ (image 2 on the right), which are set out according to the cable diameter (note the bending radius!). Torsion of the cable can then no longer occur.

Image 1 - Safe Pulling of Cables Using Manual Laying

Image 1 – Safe Pulling of Cables Using Manual Laying

Image 2 - Destruction of the protective coating

Image 2 – Destruction of the protective coating

Further Reading

Cable Terminations

Cable Pulling Equipment

Thorne & Derrick distribute an extensive range of Cable Pulling & Laying Equipment to enable the safe installation of fibre and copper cables within the telecommunications industry. Safely installed cables reduces operational and maintenance requirements to the network and reduced service interruption to telecom cables, wires, ducts, cabinets and exchanges – products include cable spiking tools, conduit rods, cable lubricant, cable socks and rollers.