uT 1

Series Circuit

Same current flows every component

Parallel Circuit

Each branch has the same voltage

Series-Parallel arrangements

Circuit combines series and parallel arragements

Branch Circuit

Between the final overcurrent protective device and the outlet or outlet its supplies.

Connected load

Sum of the full ratings of all electrical equipment connected to a system

Demand Load

Portion of connected load that a system is actually expected to a supply at a given time.

Demand Factor

Ratio maximum demand to total connected load

Single Phase System

An ac power system using one alternative voltage waveform.

Three Phase System

Power system using three alternating voltag waveforms

Phase voltage

Voltage measured between one phase conductor and neutral conductor.