A branch circuit is defined as that part of an electric circuit extending beyond the last circuit breaker or fuse. The branch circuits start at the breaker box and extend to the electrical devices connected to the service. Branch circuits are the last part of the circuit supplying electrical devices.
What is an example of a branch circuit?
Branch Circuit: Any circuit that extends beyond the final overcurrent protective device is called a branch circuit. This includes circuits servicing single motors (individual) and circuits serving many lights and receptacles (multiwire).
What is the function of a branch circuit?
A branch circuit is part of the electrical system that originates at the main service panel and feeds electricity throughout the structure. There are 120-volt branch circuits that supply power to standard outlets and fixtures, along with 240-volt circuits that power major appliances.
What are the 4 classifications of branch circuit?
Branch circuits are divided into four categories: appliance, general purpose, individual and multiwire (see Figure 1). With the exception of branch circuits that supply only motor loads, requirements for branch circuits are in Article 210.
What is branch circuit and feeder circuit?
A feeder is the circuit conductors between the service equipment, the source of a separately derived system, or other power source and the final branch-circuit overcurrent device. Conductors past the final OCPD protecting the circuit and the outlet are branch-circuit conductors [Art.
How many branch circuits are required in a home?
As mentioned in June, a minimum of two small-appliance branch circuits are required in kitchens. [210.52(B)(1)] Kitchen countertop surfaces have the same requirement. At least two small-appliance branch circuits are required to feed the receptacles that serve countertop surfaces in a kitchen.
What is branch circuit protection?
As a branch circuit protection device, UL 489 circuit breakers are tasked with protection of the circuit wiring. Their purpose is to help prevent electric shock and fire, and to provide a means for electrical isolation during maintenance periods.
What is a branch circuit overcurrent device?
100 as follows: “A branch circuit overcurrent device is a device capable of providing protection for service, feeder, and branch circuits and equipment over the full range of overcurrents between its rated current and its interrupting rating.
What is a 2 wire branch circuit?
A Multiwire Branch Circuit (in the electrical code) is defined as a branch circuit that consists of two or more ungrounded conductors (two or more “hot” wires) that have a voltage between them (they are not on the same electrical phase and so are connected to different buses in the electrical panel), and a grounded
What are 3 prong outlets called?
The standard 3-prong receptacle is called a grounding receptacle because it allows a grounding wire to be connected from the electrical circuit to the appliance. The grounding wire is connected to the third prong of the plug.
