In industrial environments where the temperature is between 55 and 90 degrees Celsius, an aluminum power line is used. At this temperature, the difference between the coefficient of expansion of copper and aluminum is affected, in which case for lengths higher than 150 meters, the expansion barrier of the power line must be used (expansin). In this type of busbars, the sliding part is copper or steel. According to the conditions of the workplace, the type of conductor is suggested by the expert.

Aluminum rails can be produced in the ranges of 80/120/160/200/240/280