When installing wiring, what does NEC Article 300 specify about supporting conductors?

NEC Article 300 provides guidelines for the proper installation and support of conductors, emphasizing the importance of ensuring that electrical wiring is adequately secured to prevent damage, sagging, or other issues that could compromise safety. The requirement that conductors must be supported every 10 feet ensures that the wiring is maintained in a secure manner, which helps to protect not only the integrity of the conductors but also the safety of the overall electrical system.

This frequent support helps distribute the weight of the wiring, reduces stress on connections, and minimizes the risk of wear and tear that can lead to failures or hazards such as overheating or short circuits. Proper support is vital in maintaining electrical code compliance and promoting safety in electrical installations.

The other choices do not align with the guidelines outlined in NEC Article 300. For instance, suggesting that conductors should not be supported at all contradicts the fundamental requirement for maintaining the integrity and safety of electrical installations. While proposing support exclusively in ceilings limits the versatility of installation practices, the article acknowledges the need for support in various locations based on the installation environment. Additionally, stating that conductors must be securely fastened to walls, while partially true, does not capture the necessity for consistent support throughout the entire length of the conductors