Electrical Systems ELEX 1810

• Vocabulary
• Know the names of common electrical equipment used in buildings.
• Know the terms for electrical quantities used in the industry.
• Be able to correctly identify common electrical equipment from their images or on sight.
• Symbols
• Use correct symbology on electrical drawings and one-line diagrams.
• Correctly sketch the symbols for electrical equipment given the equipment name.
• Given the symbol of a particular electrical equipment, correctly name and describe that equipment.
• Electrical Wiring Skills, Residential wiring.
• Wire to correct practice a duplex receptacle.
• Wire to correct practice an incandescent light and light switch.
• Wire to correct practice and test a 3- way (two switch station) lighting circuit.
• Electrical Measurements, Electrical Protection and Safe Practices
• Use a Voltmeter and One-Hand Rule to measure circuit voltages in 120/240 single-phase circuits.
• Use an Ammeter and/or Power meter to measure household branch circuit load.
• Survey overcurrent protection
• Calculate Electrical Service Required.
• Calculate service entrance ampacity required for single family residences.
• Calculate service entrance ampacity required for multi-unit residences.
• Determine the number of circuits required for a given residence.
• Survey wiring in an existing detached single family residence.
• Document the electrical system for an existing or hypothetical detached single family residence.
• Prepare an electrical Panel Schedule for this residence.
• Prepare wiring and one-line diagrams for commercial buildings.
• Know the difference between schematics, one line diagrams, and wiring diagrams
• Read wiring diagrams for buildings fed from single and three phase services.
• Sketch electrical circuiting and wiring for the floor plan of a small commercial building.
• Temporary Services and Safety for building construction sites
• Sketch and label the components for a typical residential temporary construction pole service.
• Selecting service voltage ratings and capacity to match construction equipment.
• Explain the need for safe working distances from Utility power lines.
• National Building Code Electrical Requirements
• Explain the minimum requirements for Residential Electrical Facilities, per Section 9.34.
• Canadian Electrical Code Requirements
• Sketch and or describe CEC requirements for service entrance grounding systems.
• Describe wiring methods in wood frame and steel stud construction.
• List the standard single- and three-phase voltage levels used for secondary services.
• Discuss where conduit, armoured cable and non metallic wiring methods are used.
• Describe and sketch how low-voltage control circuits are used for controlling higher-voltage lighting and motor loads.
• Costing Factors
• Describe how voltage selection and wiring methods specified affect cost.
• Discuss how the choice of gas/oil/electric heat affects construction and long term costs.
• Energy Efficiency and Power Quality
• Describe "Power Smart" and similar efficiency-incentive programs.
• Discuss the benefits of appliance efficiency in regard to building design.
• Discuss the costs of appliance efficiency in regard to electrical system design.
• Emergency Power Supplies and Uninterruptible Power Supply (UPS) systems
• Describe several emergency power supply systems, including UPS systems.

Effective as of Fall 2005