170 likes | 392 Views
Eco-Home. Power and Energy. Electrical Power. Two Types of Current Alternating Current (AC) wall outlet Direct Current (DC) Battery. Direct Current. Most electronics use DC. AC can be turned into DC with a power supply. DC cannot be transmitted long distances easily.
E N D
Eco-Home Power and Energy
Electrical Power Two Types of Current • Alternating Current (AC) wall outlet • Direct Current (DC) Battery
Direct Current • Most electronics use DC. AC can be turned into DC with a power supply. • DC cannot be transmitted long distances easily. • DC can be stored in a battery.
AC • AC can be transmitted long distances. • Large appliances use AC, some use AC and DC. • Lights and motors can run on AC.
Home Wiring • Residential service is usually: • 60, 100 or 200 amp service. • 4 wires enter your house from the street • 2 Line (Hot) 110-120VAC each (180 degrees out of phase) • 1 Neutral • 1 Ground
Wire • Sold By Gauge (Thickness) • Large number = small diameter wire • Small number = large diameter wire