Answer from Ningbo Changshi: Pulling on a slope adds the gravitational force acting on the cable to the tension equation. The formula is a variation of the straight-run formula that accounts for the incline's angle.

The general formula for pulling up an incline is:

Tout=Tin+(L×w×μ×cos(α))+(L×w×sin(α))

And for pulling down a decline:

Tout=Tin+(L×w×μ×cos(α))−(L×w×sin(α))

Where:

• α (alpha) is the angle of the incline or decline.

• All other variables are the same as in the straight-pull formula.

The inclusion of the sine and cosine functions shows how gravity adds to the tension on an incline and reduces it on a decline. For uphill pulls, the total tension increases significantly. Conversely, on downhill pulls, gravity can assist the pull, but a controlled OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner or brake is vital to prevent the cable from running away. We provide a full range of pullers and OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioners that can manage both high-tension uphill pulls and provide precise braking for downhill operations.