dedicated circuit

A dedicated circuit is designed to ensure enough power is available for a specific appliance without overloading the system.

The term “dedicated circuit” is a layman’s term for what the National Electric Code or NFPA 70 calls an “individual branch circuit.”

Each item on an individual branch circuit has a circuit breaker in the electrical box. The National Electrical Code or NFPA 70, Section 422 requires an individual branch circuit for:

1. Range Hood, if connected using a flexible cord (not hard-wired) per Section 422.16(4)
2. Central heating equipment per Section 422.12

The program will provide electrical requirements for PRAC on the NCIDQ Exam. Be sure to understand the difference between the interior designer’s role and the electrical engineer’s.

Electrical loads for appliances should be considered so they don’t overload the circuit. It is best practice to provide a dedicated or individual branch circuit for these items to avoid overloading and tripping the circuit breaker that supplies their power:

• Electric ranges
• Wall ovens
• Refrigerators
• Microwaves
• Freezers
• Dishwashers
• Garbage disposals
• Washers
• Dryers
• Air conditioning units
• Furnaces
• Water heaters
• Garage door openers
• Sump pumps
• Water pumps
• Central vacuums
• Whirlpools/Jacuzzis/hot tubs/saunas
• Large Copy Machines
• Vending Machines
• Other special equipment or items with a motor

An individual branch circuit may also be used to prevent electrical interference from disturbing sensitive or special equipment and computers.