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Electrical

Grade 10 Curriculum Framework

Upper Cape Cod Technical School

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© 2011

Center for Occupational Research and Development (CORD)

4901 Bosque Blvd.

Waco, TX 76710



Contents

Course Overview 5

Course Alignment Matrix 7

Course Scope and Sequence 19

Occupational Analysis 43

Course Overview

Course philosophy

UPPER CAPE COD TECHNICAL SCHOOL’S ELECTRICAL PROGRAM USES SHOP SIMULATIONS, LABORATORY EXPERIMENTS AND FIELD WORK TO TEACH STUDENTS HOW TO INSTALL STATE-OF-THE-ART ELECTRICAL EQUIPMENT FOR LIGHT, HEAT, POWER, DATA AND TELECOMMUNICATIONS IN COMMERCIAL, INDUSTRIAL AND RESIDENTIAL BUILDINGS. THROUGHOUT THE PROGRAM AT UPPER CAPE TECH, STUDENTS WORK ON PROJECTS THAT PROVIDE AUTHENTIC WORKPLACE EXPERIENCES AND DEVELOP SKILL SETS. MAJOR TOPICS ADDRESSED IN THE PROGRAM (GRADES 10–12) INCLUDE:

• Electric code

• Electrical safety

• Print reading

• Overcurrent protection

• Conductor properties

• Electrical theory

• Electrical test equipment

• Raceways, boxes, and fittings

• Conductor properties and installation

• Motors

• Grounding

• Safety switches

• Hand and power tool use

• Transformers

• AC wiring and applications

• DC wiring and applications

• Wiring for low voltage and controls

• CAD (computer assisted drafting)

• Industrial health and safety

This program offers 2,200 of the 8,000 practical work hours required by Massachusetts to become eligible for the state licensing examination for electricians. Students are also prepared to attend a wide variety of two- or four-year colleges that offer training as an electrical technician or an electrical engineer.

related business and industry expectations

CAREERS IN ELECTRICAL TECHNOLOGY MAY RANGE FROM ELECTRICIAN APPRENTICE/HELPER TO JOURNEYMAN OR MASTER ELECTRICIAN, CABLE EMPLOYEE, ELECTRICAL SALES, ELECTRICAL MAINTENANCE, UTILITY COMPANY TRAINEE, OR ELECTRICAL ENGINEERING.

The following organizations provide industry awareness and information on licensure in the state of Massachusetts.

• Board of State Examiners of Electricians



• National Fire Protection Association (National Electrical Code)



• Massachusetts Electrical Code



• Electrical Careers



Course Alignment Matrix

Electricity

Strand 2: Technical Knowledge and Skills

| | |9 |10 |11 |12 |

|2.A.01c |Explain the basic layout of a set of prints as well as the importance of the accompanying job specifications | | |X | |

| |document. | | | | |

|2.A.02c |Recognize and identify basic print terms, abbreviations, line types, symbols and notes. | | |X | |

|2.A.03c |Interpret and follow drawing dimensions. | | |X | |

|2.A.04c |Determine true measurements from a print using an architect’s scale. | | |X | |

|2.A.05c |Read and interpret plan, elevation, section and detail views and schedules. | | |X | |

|2.A.06c |Identify, develop and complete material quantity takeoff sheets. | | |X | |

|2.A.07c |Discuss how state and/or local code requirements apply to prints. | | |X | |

|2.A.08 |Layout and convert schematic diagrams to wiring diagrams. | | |X | |

|2.A.09 |Layout and convert wiring diagrams to schematic diagrams. | | |X | |

|2.A.10 |Utilize software for control circuit drawing. | | |X | |

|2.B |Demonstrate the use of tools, fasteners, and equipment. | | | | |

|2.B.01 |Demonstrate and explain the use of threaded fasteners. |X |X | | |

|2.B.02 |Demonstrate and explain the use of nonthreaded fasteners. |X |X | | |

|2.B.03 |Demonstrate and explain the use and types of anchors. |X |X | | |

|2.B.04 |Install fasteners and anchors. |X |X | | |

|2.B.05 |Demonstrate safe operation of power and powder actuated tools. |X |X | | |

|2.C |Illustrate basic concepts of electrical theory. | | | | |

|2.C.01 |Explain what atoms are and how they are constructed. |X |X | | |

|2.C.02 |Define voltage and identify the ways in which it can be produced. |X |X | | |

|2.C.03 |Explain the difference between conductors and insulators. |X |X | | |

|2.C.04 |Define the units of measurement that are used to measure the properties of electricity. |X |X | | |

|2.C.05 |Explain how voltage, current, and resistance are related to each other. |X |X | | |

|2.C.06 |Using the formula for Ohm's law, calculate an unknown value. |X |X | | |

|2.C.07 |Explain the different types of meters and equipment used to measure voltage, current, resistance, and power. |X |X | | |

|2.C.08 |Using the power formula, calculate the amount of power used by a circuit. |X |X | | |

|2.D |Illustrate advanced concepts of electrical theory. | | | | |

|2.D.01 |Explain the basic characteristics of a series, parallel and combination circuit. | |X | | |

|2.D.02 |Calculate, using Kirchhoff's voltage law, the voltage drop in series, parallel, and combination circuits. | |X | | |

|2.D.03 |Calculate, using Kirchhoff's current law, the total current in series, parallel, and combination circuits. | |X | | |

|2.D.04 |Find the total amount of resistance in series, parallel, and combination circuits. | |X | | |

|2.D.05 |Calculate the peak and effective voltage or current values for an AC waveform. | |X | | |

|2.D.06 |Calculate the phase relationship between two AC waveforms. | |X | | |

|2.D.07 |Describe the voltage and current phase relationship in a resistive AC circuit. | |X | | |

|2.D.08 |Describe the voltage and current transients that occur in an inductive circuit. | |X | | |

|2.D.09 |Define inductive reactance and state how it is affected by frequency. | |X | | |

|2.D.10 |Describe the voltage and current transients that occur in a capacitive circuit. | |X | | |

|2.D.11 |Define capacitive reactance and state how it is affected by frequency. | |X | | |

|2.D.12 |Explain the relationship between voltage and current in RL AC, RC AC, LC AC, and RLC AC circuits. | |X | | |

|2.D.13 |Explain true, apparent, and reactive power as they relate to AC circuits. | |X | | |

|2.D.14 |Explain 'power factor' as it relates to AC circuits. | |X | | |

|2.D.15 |Explain the use of surge protection and UPS systems. | |X | | |

|2.E |Use electrical test equipment. | | | | |

|2.E.01 |Perform measurement of current using the ammeter/clamp-on. | |X | | |

|2.E.02 |Perform measurement of voltage using the voltmeter. | |X | | |

|2.E.03 |Perform measurement of resistance using the ohmmeter. | |X | | |

|2.E.04 |Measure circuit properties using the volt-ohm-multimeter (VOM). | |X | | |

|2.E.05 |Measure power using the wattmeter. | |X | | |

|2.E.06 |Explain the operation of and describe the megohmmeter. | |X | | |

|2.E.07 |Explain the operation of and describe the induction tester/proximity tester. | |X | | |

|2.E.08 |Determine the state of a circuit using a continuity tester. | |X | | |

|2.E.09 |Explain the operation of and describe the voltage tester. | |X | | |

|2.E.10 |Explain the operation of and describe the circuit tracer. | |X | | |

|2.E.11 |Read and convert from one scale to another on all types of common test equipment. | |X | | |

|2.E.12 |Connect a meter using proper meter polarity. | |X | | |

|2.E.13 |Compare and contrast digital and analog meters. | |X | | |

|2.F |Explain the MEC and Massachusetts CMRs. | | | | |

|2.F.01 |Explain the purpose and history of the National Electrical Code (NEC) and the Massachusetts Electrical Code | |X | | |

| |(MEC) amendments. | | | | |

|2.F.02 |Describe the layout of the Massachusetts Electrical Code (MEC). | |X | | |

|2.F.03 |Explain how to navigate the MEC. | |X | | |

|2.F.04 |Describe the purpose of the National Electrical Manufacturers' Association (NEMA) and the National Fire | |X | | |

| |Protection Association (NFPA). | | | | |

|2.F.05 |Explain the role of Nationally Recognized Testing Laboratories.. | |X | | |

|2.F.06 |State appropriate Massachusetts Electric Code Amendments (527 CMR 12). | |X | | |

|2.F.07 |State appropriate Electrical Board of Examiners regulations (527 CMR 237). | |X | | |

|2.F.08 |State appropriate Massachusetts Building Code regulations (780 CMR). | |X | | |

|2.G |Install raceways, boxes, and fittings. | | | | |

|2.G.01 |Describe various types of cable and raceways. | |X | | |

|2.G.02 |Identify and select various types and sizes of raceways. | |X | | |

|2.G.03 |Identify and select various types and sizes of cables. | |X | | |

|2.G.04 |Identify and select various types of raceway fittings. | |X | | |

|2.G.05 |Identify various methods used to install raceways. | |X | | |

|2.G.06 |Explain MEC raceway requirements. | |X | | |

|2.G.07 |Describe the different types of nonmetallic and metallic boxes. | |X | | |

|2.G.08 |State MEC requirements for box and raceway fill. | |X | | |

|2.G.09 |Calculate the required box size for any number and size of conductors. | |X | | |

|2.G.10 |Demonstrate the radius rule when installing conductors in pull boxes. | |X | | |

|2.G.11 |Properly locate, install, and support boxes of all types. | |X | | |

|2.G.12 |Describe the MEC regulations governing pull and junction boxes. | |X | | |

|2.G.13 |State the MEC requirements for boxes supporting luminaries. | |X | | |

|2.G.14 |Explain how boxes and fittings are selected and installed. | |X | | |

|2.G.15 |Demonstrate procedures for installing raceways and boxes on various surfaces. | |X | | |

|2.G.16 |Demonstrate procedures for installing raceways and boxes underground. | |X | | |

|2.G.17 |Demonstrate procedures for installing raceways and boxes in flush installations. | |X | | |

|2.G.18 |Describe the purpose of conduit bodies. | |X | | |

|2.G.19 |Install the different types of fittings used in conjunction with boxes. | |X | | |

|2.G.20 |Describe the installation rules for installing boxes and fittings in hazardous areas. | |X | | |

|2.H |Demonstrate procedures used in raceway bending. | | | | |

|2.H.01 |Identify various raceways. | |X | | |

|2.H.02 |Identify the methods of hand bending raceway. | |X | | |

|2.H.03 |Identify the parts of electric and hydraulic benders. | |X | | |

|2.H.04 |Demonstrate process of different bending methods. | |X | | |

|2.H.05 |Determine raceway bends using mathematical formulas. | |X | | |

|2.H.06 |Make 90º bends, back-to-back bends, offsets, kicks, and saddle bends. | |X | | |

|2.H.07 |Cut, ream, and thread conduit. | |X | | |

|2.I |Explain factors relating to conductors. | | | | |

|2.I.01 |Explain the various sizes and gauges of wire in accordance with American Wire Gauge (AWG) standards. | |X |X | |

|2.I.02 |Identify insulation types according to conditions and applications. | |X |X | |

|2.I.03 |Describe voltage ratings of conductors and cables. | |X | | |

|2.I.04 |Read and identify markings on conductors and cables. | |X | | |

|2.I.05 |Determine the ampacity of a conductor using the tables in the MEC. | |X |X | |

|2.I.06 |Select electrical conductors for specific applications. | |X | | |

|2.I.07 |Demonstrate how to size conductors for a load. | |X | | |

|2.I.08 |Explain the application of the MEC ampacity tables. | |X | | |

|2.I.09 |Demonstrate derating conductors for fill, temperature, and voltage drop. | |X | | |

|2.I.10 |State the purpose of stranded wire. | |X | | |

|2.I.11 |Describe the different materials from which conductors are made. | |X |X | |

|2.I.12 |Describe the color coding of insulation. | |X | | |

|2.J |Install Conductors. | | | | |

|2.J.01 |Describe the procedure and equipment for pulling wire through conduit. | | |X | |

|2.J.02 |Demonstrate the various methods of installing conductors in raceways. | | |X | |

|2.J.03 |Install conductors in a raceway system. | | |X | |

|2.J.04 |Plan and set up for a cable pull. | | |X | |

|2.J.05 |Explain how mandrels, swabs, and brushes are used to prepare conduit for conductors. | | |X | |

|2.J.06 |Install a pull-line for a cable-pulling operation. | | |X | |

|2.J.07 |Explain the operation of power fish tape systems. | | |X | |

|2.J.08 |Prepare the ends of conductors for pulling. | | |X | |

|2.J.09 |Describe the types of cable pullers. | | |X | |

|2.J.10 |Explain how to support conductors in vertical conduit runs. | | |X | |

|2.J.11 |Demonstrate the installation of cable in cable trays. | | |X | |

|2.J.12 |Explain the importance of communication during a cable-pulling operation. | | |X | |

|2.J.13 |Explain the probable causes of stress or tension in cable pulls. | | |X | |

|2.K |Splice and terminate conductors. | | | | |

|2.K.01 |Describe how to make a good conductor termination. | | |X | |

|2.K.02 |Prepare cable ends for terminations and splices. | | |X | |

|2.K.03 |Select and install lugs and connectors onto conductors. | | |X | |

|2.K.04 |Train cable at termination points. | | |X | |

|2.K.05 |Explain the requirements of the MEC in making cable terminations and splices. | | |X | |

|2.K.06 |Explain why mechanical stress should be avoided at cable termination points. | | |X | |

|2.K.07 |Describe the importance of using proper bolt torque when bolting lugs onto busbars. | | |X | |

|2.K.08 |Describe splicing techniques. | | |X | |

|2.K.09 |Splice conductors using solderless connectors. | | |X | |

|2.K.10 |Explain how to use hand and power crimping tools. | | |X | |

|2.K.11 |Describe crimping techniques. | | |X | |

|2.K.12 |Describe the installation rules for parallel conductors. | | |X | |

|2.K.13 |Identify and apply manufacturers' specifications to all installations. | | |X | |

|2.K.14 |Insulate a splice joint. | | |X | |

|2.L |Apply concepts relating to commercial and industrial wiring. | | | | |

|2.L.01 |Demonstrate and describe three-phase services. | | |X | |

|2.L.02 |Describe various types of electric service for commercial and industrial installations. | | |X | |

|2.L.03 |Explain the purpose of GFPE for services and where they must be installed. | | |X | |

|2.L.04 |Calculate and select service-entrance equipment as per MEC rules. | | |X | |

|2.L.05 |Explain NEMA classifications as they relate to switches and enclosures. | | |X | |

|2.L.06 |Install wiring devices according to MEC regulations. | | |X | |

|2.L.07 |Identify and follow MEC regulations governing installation of wiring devices. | | |X | |

|2.L.08 |Identify and describe safety switches and disconnects. | | |X | |

|2.L.09 |Install main disconnect switches, panelboards, and overcurrent protection devices. | | |X | |

|2.L.10 |Identify the circuit loads, number of circuits required, and installation requirements for distribution | | |X | |

| |panels. | | | | |

|2.L.11 |Identify and state the function of switchgear. | | |X | |

|2.L.12 |Identify special locations and equipment. | | |X | |

|2.M |Apply concepts used in residential wiring. | | | | |

|2.M.01 |Describe how to determine electric service requirements for dwellings. | | |X | |

|2.M.02 |Demonstrate and explain the grounding requirements of a residential electric service. | | |X | |

|2.M.03 |Calculate and size service-entrance equipment. | | |X | |

|2.M.04 |Demonstrate and state the functions and ratings of single-pole, double-pole, three-way, four-way, and dimmer | | |X | |

| |switches. | | | | |

|2.M.05 |Explain how wiring devices are selected and installed. | | |X | |

|2.M.06 |Select proper wiring methods for various types of residences. | | |X | |

|2.M.07 |Explain the role of the MEC in residential wiring. | | |X | |

|2.M.08 |Compute branch circuit loads and explain branch circuit requirements. | | |X | |

|2.M.09 |Explain the purpose of ground-fault circuit interrupters (GFCI) and arc-fault circuit interrupters (AFCI) and | | |X | |

| |tell where they must be installed. | | | | |

|2.M.10 |Describe rules for installing electric space heating and HVAC equipment. | | |X | |

|2.M.11 |Demonstrate the installation rules for electrical systems around swimming pools, spas, and hot tubs. | | |X | |

|2.M.12 |Describe the installation and layout of lighting outlets. | | |X | |

|2.M.13 |Demonstrate the ability to make all installations according to manufacturers' specifications. | | |X | |

|2.N |Demonstrate methods of overcurrent protection. | | | | |

|2.N.01 |Explain the importance and necessity of overcurrent protection in electrical circuits. | | |X | |

|2.N.02 |State the key MEC requirements regarding overcurrent protection. | | |X | |

|2.N.03 |Determine let-through current values (peak and RMS) when current-limiting overcurrent devices are used. | | |X | |

|2.N.04 |Demonstrate sizing of overcurrent protection for specific applications. | | |X | |

|2.N.05 |Define the terms associated with fuses and circuit breakers. | | |X | |

|2.N.06 |Describe the operation of a circuit breaker and fuse. | | |X | |

|2.N.07 |Select the most suitable overcurrent device for the application. | | |X | |

|2.N.08 |Explain the role of the MEC in specifying overcurrent devices. | | |X | |

|2.N.09 |Describe the operation of single-element and time-delay fuses. | | |X | |

|2.N.10 |Demonstrate alignment short circuit currents. | | |X | |

|2.N.11 |State and apply MEC tap rules. | | |X | |

|2.O |Illustrate theories of and applications relating to motors. | | | | |

|2.O.01 |Define terms relating to motors. | | | |X |

|2.O.02 |Describe the various types of motor enclosures. | | | |X |

|2.O.03 |Describe how the rated voltage of a motor differs from the system voltage. | | | |X |

|2.O.04 |Describe the basic construction and components of a three-phase squirrel cage induction motor. | | | |X |

|2.O.05 |Describe the basic construction and components of single-phase motors and operating characteristics. | | | |X |

|2.O.06 |Explain the relationships among speed, frequency, and the number of poles in a three-phase induction motor. | | | |X |

|2.O.07 |Describe how torque is developed in an induction motor. | | | |X |

|2.O.08 |Define percent slip and speed regulation. | | | |X |

|2.O.09 |Demonstrate how the direction of a three-phase motor is reversed. | | | |X |

|2.O.10 |Describe the component parts and operating characteristics of a three-phase wound rotor induction motor. | | | |X |

|2.O.11 |Describe the component parts and operating characteristics of a three-phase synchronous motor. | | | |X |

|2.O.12 |Define torque, starting current, and armature reaction as they apply to DC motors. | | | |X |

|2.O.13 |Explain how the direction of rotation of a DC motor is changed. | | | |X |

|2.O.14 |Describe the design and characteristics of a DC shunt, series, and compound motor. | | | |X |

|2.O.15 |Describe dual-voltage motors and their applications. | | | |X |

|2.O.16 |Describe the methods for determining various motor connections. | | | |X |

|2.O.17 |Describe general motor protection requirements as delineated in the MEC. | | | |X |

|2.O.18 |Size branch circuits and feeders for electric motors. | | | |X |

|2.O.19 |Size, select, and install overcurrent protective devices for motors. | | | |X |

|2.O.20 |Size, select, and install overload relays for electric motors. | | | |X |

|2.O.21 |Size motor short-circuit protectors. | | | |X |

|2.O.22 |Size multi-motor branch circuits. | | | |X |

|2.O.23 |Size motor disconnects. | | | |X |

|2.O.24 |Demonstrate protecting motor circuits with transformers. | | | |X |

|2.O.25 |Reverse a single-phase motor. | | | |X |

|2.P |Identify and use motor controls. | | | | |

|2.P.01 |Demonstrate the operating principles of motor controls and control circuits. | | | |X |

|2.P.02 |Select motor controls for specific applications. | | | |X |

|2.P.03 |Connect a simple control circuit. | | | |X |

|2.P.04 |Connect motor controllers for specific applications. | | | |X |

|2.P.05 |Connect control transformers in conjunction with motor control circuits. | | | |X |

|2.P.06 |Explain MEC regulations governing the installation of motor controls. | | | |X |

|2.P.07 |Install motor control circuits following MEC requirements. | | | |X |

|2.P.08 |Install contactors and relays according to the MEC requirements. | | | |X |

|2.P.09 |Interpret motor control diagrams and schematics. | | | |X |

|2.P.10 |Size and select thermal overload relays and other protective devices for motor controls. | | | |X |

|2.P.11 |Describe how overload relays operate. | | | |X |

|2.P.12 |Describe the operating principles of contactors and relays. | | | |X |

|2.P.13 |Select contactors and relays for use in specific control system. | | | |X |

|2.P.14 |Demonstrate purpose of electrical and mechanical interlocks. | | | |X |

|2.P.15 |Explain how mechanical and solid-state controllers operate. | | | |X |

|2.P.16 |Describe manual, semi-automatic and automatic control circuits. | | | |X |

|2.P.17 |Test control circuits. | | | |X |

|2.P.18 |Identify and state the functions of limit switches and relays. | | | |X |

|2.P.19 |Explain applications of PLC, VFD, USD and other computerized controls. | | | |X |

|2.Q |Demonstrate procedures used to maintain motors. | | | | |

|2.Q.01 |Demonstrate procedures used to test motors and generators. | | | |X |

|2.Q.02 |Demonstrate procedures used to clean and test open-frame motors. | | | |X |

|2.Q.03 |Demonstrate procedures used to lubricate motors that require this type of maintenance. | | | |X |

|2.Q.04 |Collect and record motor data. | | | |X |

|2.Q.05 |Select tools for motor maintenance. | | | |X |

|2.Q.06 |Test motors. | | | |X |

|2.Q.07 |Troubleshoot electric motors. | | | |X |

|2.R |Illustrate principles of grounding. | | | | |

|2.R.01 |Explain the purpose of grounding according to the MEC. | | | |X |

|2.R.02 |Distinguish between a short circuit and a ground fault. | | | |X |

|2.R.03 |Define the MEC ground-related terms. | | | |X |

|2.R.04 |Distinguish between system grounding and equipment grounding. | | | |X |

|2.R.05 |Size the grounding electrode conductor for various AC systems using the MEC. | | | |X |

|2.R.06 |Explain the MEC requirements for the installation and physical protection of grounding electrode conductors. | | | |X |

|2.R.07 |Explain the function of the grounding electrode system and determine which grounding electrodes shall be used.| | | |X |

|2.R.08 |Size the equipment grounding conductor for raceways and equipment using the MEC. | | | |X |

|2.R.09 |Explain the function of the main bonding jumper in the grounding system and size the main bonding jumper for | | | |X |

| |various applications. | | | | |

|2.R.10 |Explain the MEC requirements for bonding of enclosures and equipment. | | | |X |

|2.R.11 |Explain the MEC requirements for grounding of enclosures and equipment. | | | |X |

|2.R.12 |Demonstrate effectively grounded and its importance in clearing ground faults and short circuits. | | | |X |

|2.R.13 |Explain the MEC requirements for grounding separately-derived systems, including transformers and generators. | | | |X |

|2.R.14 |Explain the MEC requirements for grounding at more than one building. | | | |X |

|2.S |Install and maintain lighting and luminaries. | | | | |

|2.S.01 |Identify and define industry terminology for lighting. | | | |X |

|2.S.02 |Recognize ballasts and describe their purpose for use in fluorescent and HID lighting fixture (luminaires). | | | |X |

|2.S.03 |Recognize basic occupancy sensors, photoelectric sensors, and dimmers used to control lighting circuits and | | | |X |

| |describe how each device operates. | | | | |

|2.S.04 |Select and install contactors and relays for lighting control. | | | |X |

|2.S.05 |Troubleshoot fluorescent and HID lamps and lighting fixtures (luminaires) using checklists. | | | |X |

|2.S.06 |Describe the characteristics of light and how the human eye reacts to light. | | | |X |

|2.S.07 |Recognize the different kinds of lamps and explain the advantages and disadvantages of each type. | | | |X |

|2.S.08 |Properly select and install lamps into lighting fixtures (luminaires). | | | |X |

|2.S.09 |Recognize and install various types of lighting fixtures (luminaires). | | | |X |

|2.S.10 |Classify lighting fixtures by layout, location, fixture type, and type of service. | | | |X |

|2.S.11 |Identify the main lighting requirements associated with lighting systems used in selected applications such as| | | |X |

| |office buildings, schools, theaters, etc. | | | | |

|2.S.12 |Select the appropriate lighting fixtures for specific lighting applications using manufacturers' lighting | | | |X |

| |fixture catalogs. | | | | |

|2.T |Illustrate concepts relating to distribution system transformers. | | | | |

|2.T.01 |Describe transformer operation. | | | |X |

|2.T.02 |Explain the principle of self and mutual induction. | | | |X |

|2.T.03 |Describe the operating characteristics of the various types of transformers. | | | |X |

|2.T.04 |Connect a multi-tap transformer for the required secondary voltage. | | | |X |

|2.T.05 |Explain MEC regulations governing the installation of transformers. | | | |X |

|2.T.06 |Compute transformer sizes for various applications. | | | |X |

|2.T.07 |Explain types and purposes of grounding transformers. | | | |X |

|2.T.08 |Identify power transformer connections. | | | |X |

|2.T.09 |Identify specialty transformers. | | | |X |

|2.T.10 |Calculate and install overcurrent protection for transformers. | | | |X |

|2.T.11 |Ground specialty transformers according to MEC requirements. | | | |X |

|2.T.12 |Size and select buck-and-boost transformers. | | | |X |

|2.T.13 |Identify current and potential transformers. | | | |X |

|2.T.14 |Demonstrate and describe reasons for both wye- and delta-connected units. | | | |X |

|2.U |Describe and install low voltage and alarm systems. | | | | |

|2.U.01 |Identify basic electronic system components and schematic diagrams and ladder logic. | | | |X |

|2.U.02 |Describe the basic materials of solid-state devices. | | | |X |

|2.U.03 |Describe and identify the basic types of solid state devices and their use in circuits. | | | |X |

|2.U.04 |Explain the operating principles of fire and security alarm systems. | | | |X |

|2.U.05 |Identify the components of fire and security alarm systems. | | | |X |

|2.U.06 |Install and connect components of fire and security alarm systems. | | | |X |

|2.U.07 |Explain startup procedures for fire and security systems. | | | |X |

|2.U.08 |Explain the various codes and regulations related to alarm systems (i.e. NFPA 72). | | | |X |

|2.U.09 |Identify and install Class 1, 2, and 3 low voltage systems. | | | |X |

|2.U.10 |Explain the MEC rules in Article 725 as they relate to various low voltage circuits. | | | |X |

|2.U.11 |Explain the cable hierarchy for cable as they relate to fire, communications and other cable systems in a | | | |X |

| |building. | | | | |

|2.U.12 |Prepare, install, terminate, and test teledata wiring. | | | |X |

Course Scope and Sequence

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Introduction to the Electrical Trade |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Electrical Trade Fundamentals | | |

|History of The Electrical Trade | |Describe the history of the electrical trade. |

|Describe the fundamentals of the electrical trade. | |Identify important developments in the progress of |

|Describe the historical development of the electrical trade. | |the electrical trade. |

|Describe the importance of the electrician in modern society. | |Describe the role and common tasks of modern |

|Identify jurisdictional boundaries of utilities, fire departments, and | |electricians. |

|local inspectors. | |Describe fundamental employee skills and |

|Identify and discuss career opportunities in the electrical trade. | |responsibilities in the electrical trade. |

|Describe proper work habits and attitudes essential for career success. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Occupational Safety Review |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Electrical Occupational Safety Review | | |

|Electrical Injuries | |Describe the myths and misconceptions about |

|Describe the potential risk for injuries from electrical shock, burns and | |electrical safety. |

|arc blasts. | |Evaluate potential risks of injury from |

|Define and describe electrical shock. | |non-electrical and electrical risks. |

|Describe the effects of electrical current on the body. | |Describe the types of injuries that electrical |

|Describe the different types of burns that electrical shock can cause. | |shock can cause. |

|Introduction to Occupational Safety | | |

|Identify and describe basic occupational safety precautions and procedures. | |Identify basic occupational safety practices. |

|Discuss the importance of being safety-conscious at a worksite. | |Demonstrate safe personal practices. |

|Identify and describe general safe personal practices. | |Demonstrate safe shop practices. |

|Identify and describe shop safety rules and procedures. | | |

|Electrical Safety | | |

|Describe the role of the Occupational Safety and Health Administration | |Define OSHA and summarize OSHA guidelines that |

|(OSHA) in promoting and regulating safe working conditions. | |affect the electrical trade. |

|Review OSHA guidelines for the safety, knowledge and proper usage of tools | |Explain the importance of safety in the electrical |

|and equipment used in the electrical trade. | |trade. |

|Identify and demonstrate basic safety practices followed in the electrical | |Describe safety procedures specific to the |

|trade. | |electrical trade. |

|Discuss ways to prevent electrical hazards. | |Identify and describe common types of PPE used in |

|Describe the importance and proper use of Personal Protective Equipment | |the electrical trade. |

|(PPE). | |Describe proper PPS maintenance procedures. |

|Identify and describe different types of PPE: | |Attain OSHA 10 certification. |

|Rubber protective equipment | | |

|Protective apparel | | |

|Eye and face protection | | |

|Explain the importance of proper PPE maintenance. | | |

|Identify and demonstrate appropriate use of special electrical trade safety | | |

|tools. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Introduction to Materials, Tools and Equipment |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Introduction to Materials, Tools and Equipment | | |

|Materials | |Identify and describe common materials used in the |

|Identify basic materials used in the electrical trade. | |electrical trade. |

|Identify different types of conduit - sizes, composition (metal, plastic, | | |

|etc.) | | |

|Fasteners and Anchors | | |

|Define fasteners and anchors and describe their general uses in the |2.B.01 |Identify and describe a variety of fasteners. |

|electrical trade. |2.B.02 |Compare and contrast the different uses and |

|Identify and describe different types of thread series, classes and |2.B.03 |applications of a variety of anchors. |

|grades. |2.B.04 |Describe the importance of selecting fasteners and |

|Identify and describe common threaded fasteners and demonstrate proper | |anchors that are appropriate for the specific task |

|installation: | |or application. |

|Machine screws | |Select and install fasteners and anchors for a |

|Machine bolts | |given task. |

|Cap screws | |Describe the primary differences between threaded |

|Set screws | |and nonthreaded fasteners. |

|Stud bolts | | |

|Eye bolts | | |

|Anchor bolts | | |

|Identify and describe common types of nuts and washers used with threaded | | |

|fasteners. | | |

|Identify and describe common nonthreaded fasteners and demonstrate proper | | |

|installation: | | |

|Retainers | | |

|Keys | | |

|Pins | | |

|Clamps | | |

|Rivets | | |

|Tie wraps | | |

|Identify and describe common screws and demonstrate proper installation: | | |

|Wood screws | | |

|Lag screws | | |

|Masonry screws | | |

|Sheet metal screws | | |

|Identify common powder-actuated fasteners and demonstrate proper | | |

|installation. | | |

|Identify and describe common mechanical anchors and demonstrate proper | | |

|application: | | |

|Measuring Tools | | |

|Identify common measuring tools and demonstrate proper use. | |Demonstrate the appropriate use of measuring tools |

|Folding rule | |common to the electrical trade. |

|Tape measure | |Explain the importance of accurate measurements and|

|Square (speed, combination, framing) | |tolerance levels. |

|Levels (plumber, torpedo, line, transit) | | |

|Hand Tools | | |

|Identify common hand tools and demonstrate proper use. | |Properly select hand tools for a given task. |

|Hand benders | |Properly operate hand tools for a given task. |

|Hickeys | |Read, interpret and summarize key points in |

|Hacksaw | |selected safety/operation manuals for hand tools. |

|Pipe cutters | |Demonstrate safe hand tool use practices. |

|Wrenches (pipe, strap, spud, crescent) | |Achieve 100% competency on hand tool safety skills |

|Pliers (slip joint, lineman’s, slip lock, locking) | |test. |

|Hammers (Claw, ball-peen) | | |

|Screwdrivers | | |

|Vises | |Assess hand tool costs, maintenance and storage. |

|Conduit reamers | | |

|Conduit threaders | | |

|Power Tools | |Properly select power tools for a given task. |

|Identify common power tools and demonstrate proper use. |2.B.05 |Properly operate power tools for a given task. |

|Saws (reciprocating, band, chop, etc.) | |Read, interpret and summarize key points in |

|Drills (offset, hammer, bits) | |selected safety/operation manuals for power tools. |

|Identify common powder-actuated tools and demonstrate proper use. | |Demonstrate safe power tool use practices. |

| | |Achieve 100% competency on power tool safety skills|

| | |test. |

| | |Assess power tool costs, maintenance and storage. |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Basic Electrical Theory |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Basic Electrical Theory | | |

|Introduction |2.C.01 |Explain what atoms are and how they are |

|Review basic principles of electricity. |2.C.03 |constructed. |

|Atom | |Describe the concept of the Law of Electrical |

|Nucleus | |Charges. |

|Electrical charges | |Describe the differences between conductors and |

|Define and describe electrical and chemical characteristics of conductors | |insulators in relation to their electrical |

|and insulators. | |characteristics. |

| | |Identify examples of common conductors and |

| | |insulators. |

|Electric Charge, Voltage and Current | | |

|Define and describe charge, current and voltage. |2.C.02 |Describe how an electrical charge has the ability |

|Analyze current and how it is measured. |2.C.04 |to do work. |

|Analyze voltage and how it is measured. | |Describe how current is produced. |

|Demonstrate how to calculate voltage and current. | |Define voltage and identify the ways in which it |

|Explain the relationship between current and voltage in a direct current | |can be produced. |

|(DC) circuit. | |Define the units of measurement that are used to |

| | |measure the properties of electricity. |

|Resistance | | |

|Define and describe resistance. |2.C.05 |Explain the differences in resistance between |

|Analyze resistance and how it is measured. |2.C.06 |conductors and insulators. |

|Define and describe Ohm’s law. | |Explain how voltage, current, and resistance are |

|Explain the relationship between current and voltage and resistance in a | |related to each other. |

|direct current (DC) circuit. | |Calculate unknown electrical values using the |

|Demonstrate how to calculate values of current, voltage, resistance and | |formula for Ohm's law. |

|power using Ohm’s law. | | |

|Electrical Measurements | | |

|Explain the different types of meters and equipment used to measure |2.C.07 |Conduct electrical measurement tests using a |

|voltage, current, resistance, and power. | |variety of testing equipment. |

|Review safety procedures for the use of electrical meters. | |Describe safety procedures for electrical meter |

|Discuss the importance of following safe procedures when taking electrical| |use. |

|measurements. | |Report electrical test measurement results in |

|Demonstrate how to use electrical measurement equipment properly. | |written and verbal forms. |

|Volt meter | | |

|Ammeter | | |

|Ohmmeter | | |

|Electrical Power | | |

|Define and describe electrical power. |2.C.08 |Calculate the amount of power used by a circuit |

|Discuss the various ways that power is manifested in an electric circuit | |using the power formula. |

|(heat, light, speed, force). | |Describe the different units of measure used for |

|Analyze electrical power and how it is measured. | |electric power. |

|Define and describe the power formula. | | |

|Explain the relationship between current and voltage, resistance and power| | |

|in a direct current (DC) circuit. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Advanced Electrical Theory – Basic Circuits |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Advanced Electrical Theory – Basic Circuits | | |

|Schematics | |Identify basic schematic symbols. |

|Identify and describe the schematic representation of circuit elements. | |Connect simple circuits according to basic |

|Review correlations between actual circuits and schematics. | |schematics. |

|Review symbols for battery, power supply, light, switch, relay, fuse, | | |

|resistor, voltmeter, ammeter, etc. | | |

|Basic Circuits | | |

|Define and describe a series circuit. |2.D.01 |Explain the basic characteristics of a series, |

|Define and describe a parallel circuit. |2.D.04 |parallel and combination circuit. |

|Define and describe the basics of a series-parallel circuit. | |Calculate resistance in series, parallel, and |

|Review the use of Ohm’s law in calculating circuit parameters. | |combination circuits. |

|Kirchhoff’s Laws | | |

|Discuss Kirchhoff’s Laws that govern the behavior of current and voltage |2.D.02 |Using Kirchhoff's voltage law, calculate the |

|in electric circuits. |2.D.03 |voltage drop in a variety of circuits. |

|Explain Kirchhoff’s voltage law. | |Using Kirchhoff's current law, calculate the total |

|Demonstrate how to calculate the voltage drop in a circuit. | |current in a variety of circuits. |

|Explain Kirchhoff’s current law. | | |

|Demonstrate how to calculate the total current in a circuit. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Advanced Electrical Theory – Alternating Current |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Advanced Electrical Theory – Alternating Current | | |

|Introduction |2.D.05 |Identify the depiction of an AC source in a |

|Discuss nature of electromagnetism and its relationship to current. | |schematic drawing. |

|Define and discuss alternating current (AC). | |Describe the differences in the frequency of |

|Identify and describe common AC waveforms. | |electrical power generated in the U.S. and Europe. |

|Discuss the characteristics of sine waves, frequency, wavelength, period, | | |

|and amplitude as they relate to AC electricity. | | |

|Explain the generation of AC sine waves. | | |

|Demonstrate how to calculate the peak and effective voltage or current | | |

|values for an AC waveform. | | |

|AC Phase Relationships | | |

|Discuss and demonstrate the appearance of phase differences between two AC|2.D.06 |Calculate the phase relationship between two AC |

|signals. | |waveforms. |

|Discuss and demonstrate the graph of a three-phase AC waveform. | | |

|Resistance in AC Circuits | | |

|Define and review resistance. |2.D.07 |Describe the effects of resistance on AC circuits. |

|Review the units of measure for resistance. | | |

|Describe factors that affect resistance. | | |

|Describe the voltage and current phase relationship in a resistive AC | | |

|circuit. | | |

|Review resistance in the context of Ohm’s Law. | | |

| | | |

|Inductance in AC Circuits | | |

|Define and review inductance. |2.D.08 |Describe the effects of inductance on AC circuits. |

|Describe the basic design characteristics of inductors. |2.D.09 | |

|Review the units of measure for inductance. | | |

|Describe factors that affect inductance. | | |

|Describe the relationship between voltage and current in an inductive AC | | |

|circuit. | | |

|Describe the voltage and current transients that occur in an inductive | | |

|circuit. | | |

|Define inductive reactance and state how it is affected by frequency. | | |

|Capacitance in AC Circuits | | |

|Define and review capacitance. |2.D.10 |Describe the effects of capacitance on AC circuits.|

|Describe the basic design characteristics of capacitors. |2.D.11 | |

|Review the units of measure for capacitance. | | |

|Describe factors that affect capacitance. | | |

|Describe the voltage and current transients that occur in a capacitive | | |

|circuit. | | |

|Define capacitive reactance and describe how it is affected by frequency. | | |

|LC and RLC Circuits | | |

|Review concepts pertaining to: |2.D.12 |Describe the different types of LC/RLC AC circuits.|

|RL circuits | | |

|RC circuits | | |

|LC circuits | | |

|RLC circuits | | |

|Explain the relationship between voltage and current in RL AC, RC AC, LC | | |

|AC, and RLC AC circuits. | | |

|Power and AC Circuits | | |

|Define and explain true, apparent, and reactive power as they relate to AC|2.D.13 |Describe the difference between power in a DC and |

|circuits. |2.D.14 |AC circuits. |

|Define and explain power factor as it relates to AC circuits. |2.D.15 |Determine the power factor of an AC circuit. |

|Explain the use of surge protection and Uninterruptable Power Supply (UPS)| | |

|systems. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Electrical Test Equipment |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Electrical Test Equipment | | |

|Introduction | |Identify the units of measurement for electricity. |

|Review concepts related to basic circuits and laws. | |Describe the general purposes of electrical test |

|Review concepts related to measurement units for electricity. | |equipment. |

|Describe the purposes of electrical test equipment. | | |

|Electrical Test Equipment | | |

|Describe safety procedures specific to electrical testing equipment. |2.E.01 |Describe the importance of following safety |

|Demonstrate proper use of electrical test equipment. |2.E.02 |guidelines when using electrical test equipment. |

|Demonstrate how to measure current using an ammeter. |2.E.03 |Select the proper testing equipment for a specific |

|Demonstrate how to measure voltage using a voltmeter. |2.E.04 |task. |

|Demonstrate how to measure resistance using an ohmmeter. |2.E.05 |Use a variety of electrical test equipment to |

|Demonstrate how to measure circuit properties using a volt-ohm-multimeter |2.E.06 |troubleshoot and verify operation on electrical |

|(VOM). |2.E.07 |components. |

|Demonstrate how to measure power using the wattmeter. |2.E.08 | |

|Explain the operation of and describe the function of a Megohmmeter. |2.E.09 | |

|Explain the operation of and describe the function of an induction |2.E.10 | |

|tester/proximity tester. |2.E.11 | |

|Demonstrate how to determine the state of a circuit using a continuity |2.E.12 | |

|tester. |2.E.13 | |

|Explain the operation of and describe the function of a voltage tester. | | |

| | | |

| | | |

|Explain the operation of and describe the function of a circuit tracer. | | |

|Demonstrate how to read and convert from one scale to another on all types| | |

|of common test equipment. | | |

|Demonstrate how to connect a meter using proper meter polarity. | | |

|Compare and contrast digital and analog meters. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Electrical Code |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Electrical Code | | |

|National Electric Code (NEC) |2.F.01 |Describe the purpose of the NEC. |

|Describe the purpose and history of the NEC. | |Explain how NEC codes affect the electrical trade. |

|Review the layout of the NEC. | |Describe the importance of an electrician’s |

|Define the two types of rules within the NEC. | |thorough knowledge of the NEC. |

|Discuss how to navigate the NEC. | | |

|Review the major sections of the NEC. | | |

|Massachusetts Electric Code (MEC) | | |

|Describe the purpose and history of the MEC. |2.F.01 |Describe the purpose of the MEC. |

|Review the layout of the MEC. |2.F.02 |Explain how MEC codes affect the electrical trade. |

|Discuss how to navigate the MEC. |2.F.03 |Describe the importance of an electrician’s |

|Review the major sections of the MEC. | |thorough knowledge of the MEC. |

|Other Regulatory Organizations | | |

|Describe the purposes and histories of other regulatory organizations |2.F.04 |Identify regulatory organizations that are related |

|related to the electrical trade: |2.F.05 |to the electrical trade. |

|National Electrical Manufacturers' Association (NEMA) |2.F.06 |Demonstrate the ability to locate regulatory |

|National Fire Protection Association (NFPA) |2.F.07 |information. |

|National Recognized Testing Laboratories (NRTL) |2.F.08 |Describe how regulatory organizations affect the |

|Describe and review the state appropriate Massachusetts Electric Code | |electrical trade. |

|Amendments (527 CMR 12). | |Explain the role of Nationally Recognized Testing |

| | |Laboratories. |

|Describe and review the state appropriate Electrical Board of Examiners | | |

|regulations (527 CMR 237). | | |

|Describe and review the state appropriate Massachusetts Building Code | | |

|regulations (780 CMR). | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Raceways, Boxes and Fittings |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Raceways, Boxes and Fittings | | |

|Raceways |2.G.01 |Describe the basic role of electrical raceways. |

|Define raceway and describe its purposes. |2.H.01 |Describe various types and designs of raceways. |

|Describe the different shapes and designs of raceways. | | |

|Describe the different materials that compose raceways. | | |

|Conduit | | |

|Define conduit and describe its purposes. |2.G.01 |Describe methods used to ground metal conduit. |

|Identify and describe different types of conduit: |2.G.02 |Describe factors that determine conduit composition|

|Electrical metallic tubing (EMT) |2.G.04 |and size. |

|Rigid metal conduit |2.G.18 |Describe the different types of conduit and explain|

|Galvanized rigid steel conduit (GRC) |2.H.07 |what types of applications they are used in. |

|Plastic-coated GRC | |Identify and select various types and sizes of |

|Aluminum conduit | |conduit. |

|Black enamel steel conduit | |Describe the types and different applications of |

|Intermediate metal conduit (IMC) | |conduit fittings. |

|Rigid nonmetallic conduit | |Identify and select various types of conduit |

|Liquid-tight flexible nonmetallic conduit (LFNC) | |fittings. |

|Flexible metal conduit | |Cut, ream and thread different types of conduit. |

|Identify and describe different types of conduit fittings: | | |

|Couplings | | |

|Conduit bodies | | |

|Bushings | | |

| | | |

|Demonstrate how to cut, ream, and thread different types of conduit. | | |

|Identify different types of conduit bodies and describe their purpose. | | |

|Raceway Bending and Installation | | |

|Explain the purpose of raceway bending. |2.G.05 |Demonstrate process of different raceway bending |

|Describe and demonstrate methods for raceway hand bending. |2.G.06 |methods. |

|Identify the parts of electric and hydraulic benders. |2.G.08 |Use mathematical formulas to complete accurate |

|Describe and demonstrate methods for electric and hydraulic-assisted |2.G.15 |raceway bends. |

|raceway bending. |2.G.16 |Demonstrate how to perform special raceway bends. |

|Demonstrate how to complete raceway bends using mathematical formulas. |2.G.17 |Identify various methods used to install raceways. |

|Demonstrate how to make 90° bends, back-to-back bends, offsets, kicks, and|2.H.02 |Properly install a variety of raceways on different|

|saddle bends. |2.H.03 |surfaces. |

|Describe methods used to install raceways. |2.H.04 |Explain MEC requirements related to raceway |

|Demonstrate how to properly install different types of raceways. |2.H.05 |installation. |

|Identify and describe different types of raceway supports. |2.H.06 | |

|Demonstrate how to properly install different types of raceway supports. | | |

|Explain general MEC raceway requirements. | | |

|Explain MEC requirements for raceway fill. | | |

|Demonstrate procedures for installing raceways on a variety of surfaces. | | |

|Demonstrate procedures for installing raceways underground. | | |

|Demonstrate procedures for installing raceways in flush installations. | | |

| | | |

| | | |

| | | |

|Boxes | | |

|Describe the purposes of boxes. |2.G.07 |Describe the different types of nonmetallic and |

|Identify and describe different types of boxes: |2.G.08 |metallic boxes. |

|Metal Boxes |2.G.09 |Describe the types and different applications of |

|Nonmetallic boxes |2.G.10 |box fittings. |

|Identify and describe different types of box fittings: |2.G.11 |Identify and select various types of box fittings |

|Bushings |2.G.12 |for specific applications. |

|Locknuts |2.G.13 |Properly install a variety of boxes on different |

|Demonstrate how boxes and fittings are selected and installed. |2.G.14 |surfaces. |

|Explain how to calculate the required box size for any number and size of |2.G.15 |Explain MEC requirements related to box |

|conductors. |2.G.16 |installation. |

|Explain MEC requirements for box fill. |2.G.17 | |

|Properly locate, install, and support boxes of all types. |2.G.19 | |

|Demonstrate the radius rule when installing conductors in pull boxes. |2.G.20 | |

|Describe the MEC regulations governing pull and junction boxes. | | |

|State the MEC requirements for boxes supporting luminaries. | | |

|Demonstrate procedures for installing boxes on various surfaces. | | |

|Demonstrate procedures for installing boxes underground. | | |

|Demonstrate procedures for installing raceways and boxes in flush | | |

|installations. | | |

|Install the different types of fittings used in conjunction with boxes. | | |

|Describe the installation rules for installing boxes and fittings in | | |

|hazardous areas. | | |

|Program Name: |Electrical |Grade Level: |10 |

|Instructor: | | | |

|Topic/Unit: |Introduction to Conductors |

|Topics |MA Frameworks |Competencies/Tasks/Skills |

|Introduction to Conductors | | |

|Introduction |2.G.03 |Identify and select various types and sizes of |

|Define conductor in the context of electrical wire assembly. | |conductors and cables. |

|Explain how conductors can be classified by size and insulating material. | | |

|Identify and describe different types of conductors and cables. | | |

|Ampacity | | |

|Explain the concept of ampacity and how it relates to conductor ratings. |2.I.05 |Describe the consequences of exceeding a |

|Explain the application of the MEC ampacity tables. |2.I.08 |conductor’s ampacity. |

|Demonstrate how to determine the ampacity of a conductor using the tables | |Use MEC tables to determine the ampacity of a |

|in the MEC. | |conductor. |

|Wire Size | | |

|Explain the various sizes and gauges of wire in accordance with American |2.I.01 |Explain the AWG system of sizing wire. |

|Wire Gauge (AWG) standards. |2.I.10 |Describe the relationship between wire size and |

|Explain the different wire stranding configurations. | |current conduction. |

| | |State the purpose of stranded wire. |

|Conductor Material | | |

|Identify and describe the different materials from which conductors are |2.I.11 |Explain why copper is the most common conductor |

|made. | |material. |

|Describe factors that affect conductor material selection. | | |

|Conductor Insulation | | |

|Identify and describe different materials used to insulate conductors: |2.I.02 |Explain the importance of proper conductor |

|Polyvinyl chloride (PVC) |2.I.03 |insulation. |

|Polyethylene (PE) |2.I.04 |Describe common types of conductor insulation. |

|Identify insulation types according to conditions and applications. |2.I.06 |Explain the color coding system used on insulated |

|Describe the color coding of insulation. |2.I.07 |conductors. |

|Demonstrate how to read and identify letter coding and markings on |2.I.09 |Explain the letter coding system used on insulated |

|conductors. |2.I.12 |conductors. |

|Explain voltage ratings of conductors and cables. | |Explain the importance of thorough wiring rating |

|Demonstrate how to select electrical conductors for specific applications.| |knowledge. |

|Demonstrate how to size conductors for a load. | |Properly size and select conductors for specific |

|Demonstrate how to derate conductors for fill, temperature, and voltage | |applications. |

|drop. | | |

|Cables | | |

|Define cables in the context of electrical wiring applications. |2.I.03 |Explain the coding and marking systems used on |

|Describe the different classifications of cable. |2.I.04 |cables. |

|Describe the different voltage ratings of cable. | | |

|Demonstrate how to read and identify letter coding and markings on cables.| | |

Occupational Analysis

-----------------------

Developed by the

Center for Occupational Research and Development

for Upper Cape Cod Technical School

To ask questions or request additional information regarding these materials, please contact:

Holly Doughty

Research Associate, CORD

hdoughty@

254-741-8310

Bonnie Rinard

Senior Research Associate, CORD

brinard@

254-741-8362

CORD assumes no liability with respect to the use of, or for damages resulting from the use of, any information, apparatus, method, or process described in this publication.

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