According to NEC Article 230, what is the minimum size of copper conductors for service entrance?

The minimum size of copper conductors for service entrance is indeed 6 AWG, which is the standard requirement according to NEC Article 230. This specification is designed to ensure adequate capacity to handle the electrical load requirements for residential services. It is essential that conductors are sized appropriately to prevent overheating and to ensure the safety and reliability of the electrical service.

In residential applications, conducting load calculations and considering factors such as the number of branch circuits and total anticipated load can help determine the proper conductor size. Though an 8 AWG conductor could be utilized for other specific applications or conditions, 6 AWG is typically the minimum size when dealing with service entrance conductors for standard residential wiring.

Understanding the reasons behind these minimum sizing requirements is crucial for maintaining safety in electrical installations and ensuring compliance with NEC regulations. Proper sizing helps mitigate risks related to electrical fires or equipment malfunction due to insufficient current carrying capacity.