According to NEC code, how must power limited Class 2 and Class 3 cables be secured in a suspended ceiling?

In accordance with the NEC (National Electrical Code), power limited Class 2 and Class 3 cables must be secured properly to ensure safety and compliance. This requirement is in place to prevent excessive sagging, potential damage, or accidental disconnection. The NEC outlines specific standards and methods for securing these cables, which include using listed cable supports, cable ties, or other appropriate fastening methods depending on the installation context.

By ensuring that cables are secured as per NEC guidelines, the risk of physical stress on connections or interference with other building systems, such as HVAC or plumbing, is minimized. This contributes to a safer and more reliable electrical system in commercial and residential applications. Proper securing also facilitates compliance with local electrical codes, which often adopt or reference NEC standards directly. Thus, understanding and adhering to these regulations is crucial for electrical professionals working in Washington State and beyond.