What is the maximum spacing for supporting 300 kcmil copper conductors installed in a vertical raceway?

The maximum spacing for supporting 300 kcmil copper conductors installed in a vertical raceway is indeed 60 feet. This specification is outlined in the National Electrical Code (NEC), which establishes guidelines for the safe installation and support of conductors to ensure they are properly secured and managed within an electrical system. Compliance with these spacing requirements helps to prevent potential issues such as sagging, damaging of the conductors, or improper heat dissipation.

Vertical raceways, due to their orientation, can be subjected to different forces that can affect the integrity of the conductors. By adhering to a maximum spacing of 60 feet, it ensures that the conductors are adequately supported throughout their length, maintaining their operational reliability and safety standards as per code requirements.