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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.

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Presentation Transcript
Eco home

Eco-Home

Power and Energy


Electrical power
Electrical Power

Two Types of Current

  • Alternating Current (AC) wall outlet

  • Direct Current (DC) Battery


Direct current
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
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






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