Article 440 applies to electrically driven air-conditioning and refrigeration equipment. The rules in this Article add to, or amend, the rules in Art. 430 and other Articles in the NEC [440.3(A)]. A key term to understand is “rated-load current.” This is the current resulting when the motor-compressor operates at rated load and rated voltage. Each manufacturer has the motor for a given air-conditioning or refrigeration unit built to its own specifications. Cooling and other ...
Website Registration Required to Access this Content
Only registered users have access to Silver content.
Registration on EC&M allows you exclusive access to high value content centered around proprietary research, expert NEC analysis and in-depth technical procedures.