The final sizing of feeders and services should comply with what standards?

• A. Electrical codes.
• B. Applicable electrical codes.
• C. Architectural design standards.
• D. Aesthetics guidelines.

Answer: (B)

Feeder and service sizing must follow the electrical codes adopted for the project. Those codes specify how to perform load calculations, size conductors, and set overcurrent protection, ensuring safe and reliable installations. Using the applicable electrical codes means you account for the base code (like the NEC) plus any local amendments or adoption variations in your jurisdiction. Architectural design standards or aesthetics guidelines don’t address electrical sizing, so they don’t provide the required rules for ampacity and protection.