What is required for multi-service installations according to NEC Article 230?

In multi-service installations, the National Electrical Code (NEC) mandates that each service must have its own means of disconnect. This requirement ensures that each service can be independently isolated from the electrical system, enhancing safety and maintenance efforts.

Having a dedicated disconnect for each service allows for better management of power, as it ensures that servicing or troubleshooting can be performed on one service without affecting others. It also provides the ability to quickly shut off power in the event of an emergency for specific sections of the building or facility.

The concept of requiring individual disconnects aligns with safety practices by minimizing risks associated with simultaneous power supply from multiple services. This distinguishes it from simpler installations, where a single disconnect might suffice. Thus, the emphasis on having distinct means of disconnect for each service is a key component in promoting operational safety and adherence to code requirements.