1. Chapter 17
Electrical Plans

2. Links for Chapter 17 Circuit Design Symbols and Wiring
Steps in Drawing
Relate Web Sites

3. Circuit Design Place switches and outlets at convenient locations
Outlets should be a maximum of 12’ apart and 6’ from an opening
Keep outlets accessible
Keep an outlet in the hallway and close together in kitchen

4. Circuit Design
Kitchen, bathroom, laundry, and outdoor circuits require ground-fault interrupter (GFI)
Exhaust fan needed in bathroom
Ceiling lights are common in children’s bedrooms
Place a light over the sink in the kitchen

5. Circuit Design Place switches so they are near lights
Locate lights in closets or alcove
Use 220-volt outlets in a shop
Light stairways well
Use exterior lights to illuminate outside areas

6. Energy Conservation Keep outlets at a minimum on outside walls
Use a back draft fan or automatic damper to limit air leakage
Use timed thermostats to control heating and cooling automatically
Run outside wires along on bottom plate

7. Energy Conservation Select energy-efficient appliances
Use fluorescent lights whenever possible
Caulk and seal around all light and convenience outlets
Use recessed lights with insulation cover (IC)

8. Home Automation
Automation is a method of controlling and operating mechanical devices without human intervention
Consider an in-home theater
Computerize lighting, heating, and security
Structured wiring is used for in-home computer networks

9. Electrical Design Considerations
Entry - One light controlled by a switch and GFI outlet
Patio/Porch - Lighting and GFI outlets
Living area - Ceiling light/fan and outlets
Dining room - Switch-controlled ceiling light
Kitchen - Outlets above the counter, for appliances, and adequate lighting

10. Electrical Design Considerations
Bedrooms - Lighting in room and closets with outlets
Bathrooms - GFI outlets, ceiling lights and fans
Laundry - Ceiling lights with 120- and 220-volt outlets
Smoke detectors - One in each sleeping area and on each story

11. Electrical Design Considerations
Telephones - Located in kitchen, office, and master bedroom
Television, cable, stereo, security - Usually wired by a specialist
Computer - Wired for a computer network to maximize printing and file-sharing

12. Universal Electrical Installations
Switch Location - Place 2’-6” above floor
Convenience Outlets - 15” above the floor and about 8’ apart
Lighting - Provide lighting that is controlled by dimmer switches
Communications - Provide additional phone jacks and an intercom system if needed

13. Electrical Symbols
All electrical symbols should be drawn with a 1/8” circle
Symbols and lines should not clutter drawing
Switches are drawn perpendicular to a wall
Draw lines with a French curve
Local notes may be applied in special situations

14. Electrical Layouts

15. Electrical Layouts

16. Wiring Specifications
Typical residential service is 200 amps
Service can be distributed overhead or underground
Locate meter on garage or exterior side wall
Locate the distribution panel in garage or close to heavy load devices

17. Drawing Electrical Plans
Letter all switch locations and draw all fixture locations
Draw electrical circuits or switch legs with dashed line
Place electrical outlets
Add local notes

18. Related Web Sites Audio Video Environment - www.avenow.com
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