Under NEC Article 300.11, how must conductors be supported?

Under NEC Article 300.11, conductors must be supported at regular intervals to ensure they are secured properly and maintained in an orderly manner. This requirement is essential in preventing damage to the conductors and ensuring safety by minimizing the risk of mechanical stress or electrical hazards that could arise from improperly supported conductors.

Supporting conductors at regular intervals provides structural integrity to the installation, helps maintain separation between different types of conductors, and assists in managing the physical layout of the wiring system. Each type of installation may have specific support requirements, but the general principle of regular intervals applies to help achieve a safe and effective electrical system.

While some other options might suggest less consistent support methods, such as only at the ends or at irregular intervals, these practices would not provide the necessary protection against potential damage or safety issues. The requirement for regular intervals ensures that conductors are adequately supported throughout their length, reducing the likelihood of sagging or stress points.