What is required for service-entrance cables or individual open service-entrance conductors?

Service-entrance cables or individual open service-entrance conductors are required to be supported to ensure safety and compliance with the National Electrical Code (NEC). Proper support is crucial because it prevents the cables or conductors from sagging or being damaged due to their own weight or environmental factors, which could lead to electrical hazards such as short circuits or even fires.

In residential and commercial installations, the NEC specifies the support requirements for various types of conductors, including service-entrance cables. This can include the use of straps, clips, or other approved supporting methods at regular intervals to maintain the integrity of the installation. Ensuring that these cables are securely fastened also helps to avoid physical damage during maintenance work and increases the overall durability of the electrical system in place.

While insulation, grounding, and isolation are important considerations in electrical systems, they pertain to different aspects of safety and functionality rather than the structural aspect of supporting the service-entrance cables.