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Light Fixtures

Light Fixtures. Ceiling/Wall fixtures surface recessed Fan (exhaust) Junction box Fluorescent fixtures. Switches. Single Switch 3-way Switch 4-way Switch Dimmer Switch Timer Switch. Electrical Symbols - Miscellaneous. Electrical Code/Drafting Practice.

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Light Fixtures

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  1. Light Fixtures • Ceiling/Wall fixtures • surface • recessed • Fan (exhaust) • Junction box • Fluorescent fixtures

  2. Switches • Single Switch • 3-way Switch • 4-way Switch • Dimmer Switch • Timer Switch

  3. Electrical Symbols - Miscellaneous

  4. Electrical Code/Drafting Practice • Duplex convenience outlets (wall plugs) should be a maximum of 12’ apart. Closer spacing is desirable, although economy is a factor. Code reads: “no point along a wall is further than 6’ from an outlet.” • Duplex convenience outlets should be no more than 6’ from a corner • There should be a duplex outlet in any usable wall space over 2’ long • Place a (one) duplex outlet in a hallway

  5. Outlet Placement Example

  6. Electrical Code/Drafting Practice Kitchen /Bathroom areas • usable counter space of 12” & greater require an outlet • outlets are required every 48” of counter space (with new code text is in error) • note mounting height for outlets above counter (+44”) • special purpose outlets for garbage disposal, dishwasher, separate oven, and hood • range outlet for electric range • GFI or GFCI protection for any outlets in rooms with a water source.

  7. Switch/Outlets Examples

  8. Switching Examples

  9. Switching • Switch symbol and fixture are connected with a dashed line using a irregular curve • Single Switching • 3-Way Switching • 4-Way Switching

  10. Switching an Outlet

  11. Switching a Porch Light +(MOUNTING HEIGHT)

  12. Electrical Plan Example

  13. Special Project Elect Plans (50 Points) • Add electrical symbols and all electrical information to your plans: • Foundation plan (3 light +switch, one outlet and special purpose outlet for water heater) • First level floor plan (two exterior WP outlets, lights at all entrances, elect range w/ hood above, garbage disposal, dishwasher outlet, and washer/dryer outlets) • Second level floor plan (exhaust fans in bathrooms, 3-way switch to 1st floor for stair light) • Complete an electrical schedule (10 points) for all the symbols used similar to one shown in Handout

  14. Electrical Symbol Schedule • Purpose of schedule is to identify and describe electrical symbols used in the set of working drawings • Categories • Symbols • Descriptions

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