What technique can help prevent pulling tension from exceeding specifications in underground installations?

The midpoint pull and intermediate pull technique is effective in managing tension during underground installations because it allows for the distribution of pulling forces along the length of the cable or conduit being installed. By utilizing a midpoint pull, the tension is not concentrated at one end, which can lead to excessive pulling stress that exceeds the specifications. This method divides the installation process into segments, providing better control over the force exerted on the material at any given time.

In contrast, other techniques like the direct pull method can often result in high tension at a single point. Additionally, the one-man pull technique may not provide adequate tension control and can lead to uneven forces being applied. The rapid pull technique introduces the risk of sudden tension spikes, which may also exceed industry specifications for the materials being installed.

Therefore, the midpoint pull and intermediate pull technique stands out as a safer and more effective approach to prevent pulling tension from exceeding specifications during underground installations.