What is the maximum distance between raceway supports?

The maximum distance between raceway supports is based on industry standards that ensure the integrity and safety of electrical systems. The correct choice indicates that the supports should be placed no more than 15 feet apart. This distance is established to prevent sagging and excessive strain on the raceway, whether it's for cable or conduit systems.

Having supports at appropriate intervals is critical for maintaining the proper alignment and minimizing the potential for mechanical damage or excessive bending of the raceway. By following these guidelines, the raceway can safely contain the electrical conductors, ensuring a reliable and safe operation of the electrical system.

Distances greater than 15 feet could compromise the structural support necessary for the raceway, potentially leading to installation failures or hazards over time, including strain on the cables and increased risk of damage. Thus, maintaining this maximum support distance is essential for both safety and compliance with local building codes or standards in electrical installations.