In vertical conduit runs, how do the support requirements for aluminum conductors compare to those for copper conductors?

In vertical conduit runs, aluminum conductors typically require support that is farther apart compared to copper conductors. This difference in support requirements stems from the physical properties of the two materials. Aluminum is lighter than copper, which means that it does not exert as much weight on the conduit supports. As a result, the structural integrity and sagging potential of aluminum conductors allow for spacing them farther apart without compromising safety or functionality.

Copper, being denser and heavier, necessitates closer support intervals to mitigate the risk of sagging, which could lead to increased strain on the conductors and potentially damage the installation. This distinction illustrates the importance of adhering to proper installation guidelines based on the specific type of conductor material being used. Proper support not only ensures the conductors are held securely but also helps maintain their performance and longevity within the electrical system.