E260 - Electrical Maintenance Skills

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5 days - 3.2 Continuing Education Units Awarded

Course Dates Download Brochure PDF
USD 2,295.00

The ability to work safely and reliably on electrical equipment systems can be dependent upon an individuals' knowledge of electrical safety, use of electrical test equipment, grounding systems and electrical print reading. This Seminar is intended to help develop these skills and their application.

Upon completion of this Seminar the participant will be able to:

  1. Describe the hazards of electrical energy and the effects of voltage on body resistance
  2. Describe, in general terms, equipment safety and safe work practices
  3. Describe why and how electrical circuits should be checked de-energized
  4. Describe OSHA safety Design Safety Standards for Electrical Systems (1910.302-308)
  5. Describe Safety Related Work Practices (1910.331-335)
  6. Explain the fundamental concepts of meter operation.
  7. Describe how each of these measuring instruments work and what precautions should be used with them: Voltmeter, Ammeter, Ohmmeter, Analog Multimeters, and Digital Multimeters.
  8. State the factors affecting insulation resistance.
  9. Describe the three purposes of insulation resistance testing.
  10. Describe proper use of an oscilloscope.
  11. Describe the general requirements for grounding and bonding.
  12. Describe the electrode system and selection of an electrode conductor.
  13. Review the requirements for grounding enclosures, raceways, and service cables.
  14. Describe bonding, continuity, and capacity to conduct any fault current to ground safely.
  15. Describe the requirements for equipment grounding and ground conductor selection.
  16. Examine various methods of equipment grounding connections for grounded and ungrounded systems.
  17. Discuss grounding of Direct Current Circuits and systems.
  18. Discuss grounding requirements for instrument transformers, meters, and relays.
  19. Explain the purpose of the American Standard Device Function Numbers Table and the Standard Diagram Abbreviations Table.
  20. List information commonly found in electrical diagrams and the purpose of each.
  21. Define single line diagrams and identify the components and symbols found within.
  22. Describe schematic diagrams and how they are used.
  23. Demonstrate the ability to trace a path for current flow through the control circuit of an AC motor controller schematic and its controller.
  24. Demonstrate the ability to troubleshoot routine problems using electrical schematics.
  25. Demonstrate the ability to use connection diagrams.
  26. Demonstrate the ability to use raceway diagrams.
  27. Demonstrate the ability to interpret logic diagrams.

Day One/Two -- Electrical Safety

  1. Hazards of Electrical Energy: Electrocution, Effects of Voltage on Body, Resistance, Effects of AC Current, Need for Electrical Safety, Incident Case Histories
  2. Electrical Equipment Safety: Safe Work Practices, Testing for Energization, Working on Energized Electrical Equipment, Grounded vs. Ungrounded Electrical Systems, Safe Grounding Methods
  3. OSHA Standards Design: Safety Standards for Electrical Systems, Electric Utilization Systems (1910.302), General Requirements (1910.303), Wiring Design and Protection (1910.304), Wiring methods, components, and equipment for general use (1910.305), Specific Purpose Equipment and Installations (1910.306), Hazardous locations (1910.307), Special Systems (1910.308), Safety Related Work Practices, Scope (1910.331), Training (1910.332), Selection and Use of Work Practices (1910.333), Use of Equipment (1910.334), Safeguards for Personnel Protection (1910.335)

Day Three (3) -- Electrical Test Equipment

  1. Use of Analog Meters: Meter Movements, Moving-Coil Meter Movement, Scales for Moving-Coil Meters, Moving-Iron Meter Movement, Meter Sensitivity, Voltmeters, Precautions, Voltage Tester, Ohmmeter, Series Resistance Measurement, Shunt Resistance Measurement, Ohms Adjust, Ammeter, Shunt Resistors, Precautions, Simpson 270 Multimeter, Specifications, Proper Use, Making Measurements
  2. Digital Meters: Application, Basic Operation, Input Signal Conditioners, A/D Converter, Control and Display, Data Output Unit (DOU)
  3. Megohmmeter
  4. High Voltage Detector: Application and Basic Operation.
  5. Oscilloscopes: Cathode-Ray tube (CRT), Deflection System, Display System, Vertical and Horizontal System, Probes, Waveforms, Measurement Techniques

Day Four (4) -- Grounding Systems

  1. General Requirements: Grounding, Bonding, Current Paths, Objectionable Current, Ground Clamps, Clean Surfaces
  2. System Grounding: Systems And Circuits To Be Grounded, AC Circuits Not Requiring To Be Grounded, Grounding Connections, Grounding Conductor, Buildings Or Structure, High Impedance Grounded Neutral Systems
  3. Grounding Electrode And Grounding Electrode System: Grounding Electrode System, Made Electrodes, Supplementary Electrodes, Resistance Of Made Electrodes, Installation, Sizing Of Conductors, Methods Of Connection To Ground
  4. Enclosure, Raceway, And Service Cable Grounding
  5. Bonding: Services, Bonding, Isolated Grounding Circuits, Piping Systems, Lightning Protection Systems
  6. Equipment Grounding And Equipment Grounding Conductors: Fixed Equipment, Cord & Plug, Conductor Identification, Conductor Installation, Conductor Sizing
  7. Methods of Equipment Grounding: Connections, Equipment Effective Grounding, Grounded Circuit Conductors, Continuity and Attachment of Conductors

Day Five (5) -- Print Reading