What is required for an accessible service disconnect according to NEC Article 230?

An accessible service disconnect must be within sight of the service entrance to comply with NEC requirements. This provision ensures that the disconnecting means can be easily located and accessed for emergency situations or maintenance activities. The requirement promotes safety by allowing individuals to quickly disconnect the service without having to search for the disconnecting means, which could delay responding to emergencies, especially if there is a risk of electric shock or fire.

While other options suggest potential locations or conditions for the service disconnect, they do not meet the specific requirement set forth in the NEC. For example, while a disconnect in a basement might be accessible depending on layout, it does not typically allow for immediate visibility from the service entrance. Locking the disconnect may enhance safety in certain contexts, but it does not address the visibility aspect which is crucial for compliance. Lastly, stating that it can be located anywhere within the building fails to adhere to the necessity of proximity and visibility to the service entrance, which is critical for effective safety measures.