Is the service disconnecting means for a grounded supply system required to be suitable for use as service equipment?

The service disconnecting means for a grounded supply system indeed must be suitable for use as service equipment. This requirement is essential because service equipment serves as the point at which the utility's supply connects with the building's electrical system. Having the disconnecting means that is suitable for use as service equipment ensures that the equipment can effectively manage the load, provide safety during maintenance, and comply with the National Electrical Code or relevant local codes.

In addition, proper service equipment must be capable of safely interrupting the supply of electricity in case of an overload or fault condition, thereby providing a level of protection both for the occupants and the electrical system itself. Therefore, it's critical that this equipment meets specified standards for performance, safety, and reliability, which is why the requirement for it to be suitable as service equipment is a foundational principle in grounding and bonding practices.