In non-residential applications, what is a permissible method of securing overhead conductors?

In non-residential applications, metal infrastructure is a permissible method for securing overhead conductors because it provides a robust and reliable framework for supporting electrical wiring. Metal structures are particularly advantageous due to their strength and durability, which are essential for preventing wear and tear from environmental factors such as wind, snow, and vibrations. The use of metal infrastructure can ensure that overhead conductors remain securely in place over long periods, reducing the risk of electrical hazards.

Plastic ties, while lightweight and easy to use, do not offer the same level of strength and stability required for heavy electrical conductors. Wooden poles can be used in some applications but may not be as durable in harsh weather conditions compared to metal. Metal anchors could also be effective, but they typically work in conjunction with a broader metal infrastructure that provides comprehensive support. Therefore, metal infrastructure stands out as the most suitable and effective option for securing overhead conductors in non-residential settings.