Conductors
Dwelling Unit
Single family
Branch circuit
Cooking unit and two ovens
Cooking unit and oven
General lighting and receptacles
Lighting, appliance, laundry
A/C vs. Heat
Appliance load
Dryer load
Cooking equipment load
Mechanical
Motors
Short Circuits
Transformers
Voltage Drop
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General lighting and receptacles
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Description
Phase
General lighting VA load
Voltage
Breaker Rating
Solve
Determining the number of branch circuits required for general lighting and receptacles
Step 1: Phase
Specify whether the calculation is for single-phase (1∅) or three-phase (3∅).
1.1
Phase
Single-phase (1∅)
Three-phase (3∅)
Step 2: General lighting VA load
This satisfies the General lighting VA load requirement.
2.1
Living area square footage
Step 3: Voltage
This satisfies the voltage requirement.
3.1
Voltage
Step 4: Breaker Rating
This satisfies the breaker rating requirement.
4.1
Breaker Rating (in Amps)
Step 5: Solve
5.1
Proof steps
Show proof steps
5.2
Solve for branch circuits
See also
Guides
Feeder service load calculations for general lighting, small appliance, and laundry demand
Conductor sizing and ampacities for insulated conductors rated 0-2000 Volts in raceway, cable, or direct buried
Definitions
Resistivity
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