Electrical Maintenance Management for Mechanical Supervisors

I. TEST ELECTRICAL CIRCUITS

Objective: Use DMM's to conduct basic tests on electrical circuits

• Use Digital Multimeters
• Measure Voltage
• Measure Current
• Measure Power

II. TEST ELECTRICAL COMPONENTS

Objective: Use an ohmmeter to conduct basic tests on electrical components

• Test Conductors
• Measure Circuit Resistance
• Test Insulation

III. APPLY ELECTRICAL FUNDAMENTALS

Objective: Relate fundamental electrical laws to the operation of DC and AC circuits

• Apply Ohm's Law
• Apply Watt's Law
• Apply Direct Current Theory
• Apply Alternating Current Theory
• Troubleshoot Electrical Circuits

IV. OPERATE ELECTRICAL SYSTEMS

Objective: Inspect and evaluate the construction and operation of electrical circuits

• Identify Color Coding
• Plan Circuit Device Installation
• Inspect 120 Volt Circuit Installations
• Plan 120/240 Volt Circuit Installations
• Evaluation Transformer Applications
• Compare Three Phase System

V. INTERPRET ELECTRICAL DIAGRAMS

Objective: Read, interpret and use electrical diagrams

• Use dc schematics
• Use ac schematics
• Use wiring diagrams
• Use ladder diagrams
• Use 3 line diagrams
• Use Single Line Diagrams
• Use protection & control diagrams

VI. INSPECT SINGLE PHASE EQUIPMENT

Objective: Replace single phase electrical equipment following the proper methods, techniques and applicable regulations

• Inspect Wires
• Inspect Cables
• Inspect Cord Ends
• Inspect Lights
• Inspect Receptacles
• Inspect Single Phase Motors
• Inspect Single Phase Panels

VII. IDENTIFY ELECTRICAL PROBLEMS

Objective: Troubleshoot electrical circuit and system faults

• Identify System Problem
• Identify Maintenance Problems
• Identify Operating Problems
• Troubleshoot Circuit Faults

VIII. IDENTIFY ELECTRICAL HAZARDS

Objective: Recognize the damage electricity can cause to the human body, identify common causes and follow safe work practices and procedures

• Avoid Equipment Damage
• Avoid High Voltage Burns
• Avoid High Line Contact
• Avoid Low Voltage Burns
• Follow Safe Work Procedures
• Follow Safe Work Practices

IX. IDENTIFY SYSTEM FAULTS

Objective: Test, troubleshoot and diagnose single phase electrical circuit problems following proper methods and techniques

• Troubleshoot Open Circuits
• Troubleshoot Short Circuits
• Troubleshoot Crossed Wires
• Troubleshoot Overloads

X. MAINTAIN PROTECTIVE SYSTEMS

Objective: Maintain the systems that protect people, equipment, materials and the environment

• Descibe Power Company Grounding
• Ground Electrical Systems
• Bond Electrical Equipment
• Ground Electrical Equipment
• Maintain Double Insulation
• Inspect Fuses
• Inspect Breakers
• Inspect GFCI's

XI. TEST SAFETY AND CONTROL DEVICES

Objective: Test circuit safety, control and magnetic devices

• Test Magnetic Devices
• Test Safety Devices
• Test Control Devices

XII. INSPECT THREE PHASE EQUIPMENT

Objective: Replace three phase electrical equipment following proper methods, techniques and applicable regulations

• Inspect Three Phase Cables
• Inspect Three Phase Panelboards
• Inspect Three Phase Cables
• Inspect Three Phase Manual Starters
• Inspect Three Phase AC Motors
• Inspect Three Phase Magnetic Starters
• Inspect Three Phase Motors

XIII. MAINTAIN CABLES

Objective: Manage medium voltage cable inventory and the electrical workers responsible for them

• Describe the construction of shielded and non-shielded cable
• Describe how to splice or terminate cable
• Describe the methods of testing cables and interpretation of test results

XIV. MAINTAIN SWITCHGEAR & DISCONNECTS

Objective: Manage the testing, troubleshooting and maintenance of switchgear and disconnects

• Describe the various types of disconnect
• Explain maintenance on disconnects
• Review safety procedures critical to disconnects
• Describe the operation of switchgear
• Describe tests that can be done on switchgear
• Explain switchgear maintenance and schedule
• Review safety procedures critical to switchgear

XV. MAINTAIN TRANSFORMERS

Objective: Manage the testing, troubleshooting and maintenance of transformers

• Interpret nameplate data
• Describe protection system
• Describe construction of transformers
• Describe maintenance procedures, testing and schedule
• Review safety procedures critical to power transformers

XVI. MAINTAIN INSTRUMENT TRANSFORMERS

Objective: Manage the testing, troubleshooting and maintenance of instrument transformers

• Describe CT operation and application
• Explain the purpose of IT's in metering
• Explain the purpose of IT's in protection
• Review safety procedures critical to IT's
• Explain testing of IT's

XVII. MAINTAIN FUSES

Objective: Manage the application of industrial fuses

• Describe the various types of fuses
• Review safety procedures critical to fuses
• List the correct steps for removal and restoration of fuses

XVIII. MAINTAIN BREAKERS

Objective: Manage the testing, troubleshooting and maintenance of breakers

• Review safety procedures critical to breakers
• List the correct steps for removal and restoration of a circuit breaker
• Describe the operation of electrically operated circuit breaker controls
• Describe the operation of breaker mechanisms
• Explain breaker maintenance and schedule
• Review safety procedures critical to breakers

XIX. MAINTAIN RELAYS

Objective: Manage the testing, troubleshooting and maintenance of relays

• Describe power system disturbances
• Describe the protective functions of various relays
• Interpret relay flags and deduce probable cause

XX. MAINTAIN STARTERS

Objective: Manage the testing, troubleshooting and maintenance of starters

• Describe various types of starters
• List types of motor protection
• Explain test procedures for starters
• Explain starter maintenance and schedule
• Review safety procedures critical to starters

XXI. APPLY COORDINATION

Objective: Manage a coordinated electrical protection system

• Explain the process of co-ordination
• Interpret time/current curves

XXII. MAINTAIN MOTORS

Objective: Manage the testing, troubleshooting and maintenance of motors

• Describe various types of motors
• Explain test procedures for motors
• Explain motor maintenance and schedule
• Review safety procedures critical to starters

XXIII. MAINTAIN VFD'S

Objective: Manage the testing, troubleshooting and maintenance of VFD's

• Describe VFD operation
• Explain VFD maintenance and schedule
• Review safety procedures critical to VFD’s

XXIV. MAINTAIN GENERATORS

Objective: Manage the testing, troubleshooting and maintenance of generators

• Describe the operation of various types of generators
• Explain test procedures for generators
• Explain generator maintenance and schedule
• Review safety procedures critical to generators

XXV. MAINTAIN EMERGENCY SYSTEMS

Objective: Manage the testing, troubleshooting and maintenance of emergency systems

• Describe various types of emergency systems: batteries, transfers, ties, temporary etc.
• Explain test procedures for operation of these systems
• Explain maintenance and schedule for emergency systems
• Review critical safety procedures

XXVI. IMPLEMENT CSA Z462/NFPA 70E

Objective: Apply the standards of CSA Z462/NFPA 70E

• Limits of approach for electrical shock and flash hazards
• Arc flash parameters
• Determine curable burn distance during a short circuit
• Determine energy released during a short circuit
• Techniques for reducing arc flash energy
• Selection of proper personal protective equipment (PPE)