Electrical Diagrams Schematics & Drawings

presented by TPC Trainco
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Bring a trainer to your location to deliver this class for groups of 10 or more.

Course Description

Course Competencies & Learning Objectives:

  • Read and Interpret Drawings and Schematics
  • Identify electrical components
  • Relate drawings to real world applications
  • Use drawings and schematics for Troubleshooting
  • Use drawings and schematics to Communicate with others
  • Create your own drawings

Course Outline:

I. Electricity Basics Review

  • A. Voltage sources
  • B. DC
  • C. Single Phase AC
  • D. Three Phase AC
  • E. Current flow
  • F. Series Circuit
  • G. Parallel Circuit
  • H. Power consumption
  • I. Watts
  • J. Horsepower
  • K. Basic Components
  • L. Resistor
  • M. Capacitor
  • N. Inductor
  • O. Ground
  • P. Earth Ground
  • Q. Equipment Ground
  • R. Circuit Ground or Common
  • S. Electrical formulas
  • T. Ohms Law
  • U. Power consumption
  • V. Resistance
  • W. Series
  • X. Parallel
  • Y. Impedance
  • Z. Inductive Reactance
  • AA. Capacitive Reactance

II. Introduction to Diagrams

  • A. Block Diagrams
    • 1. Purpose
    • 2. Flow
    • 3. One-line Diagrams
  • B. Wiring Diagrams
    • 1. Purpose
    • 2. Layout
    • 3. Flow
  • C. Schematic Diagrams
    • 1. Purpose
    • 2. Layout
    • 3. Flow
  • D. Terminal Diagrams
    • 1. Purpose
    • 2. Terminal Strip Numbering
    • 3. Labels
  • E. Electrical Floor Plans
    • 1. Purpose
    • 2. Flow

III. Introduction to Electrical Symbols

  • A. Connections (symbols)
    • 1. Wire to wire
    • 2. Wire to device
    • 3. Wire to terminal
  • B. NEMA symbols
  • C. IEC symbols
  • D. Power Section (symbols)
  • E. Power source
    • 1. DC
    • 2. Single Phase AC
    • 3. 3 Phase AC
  • F. Breakers
    • 1. Thermal
    • 2. Magnetic
    • 3. Disconnects
    • 4. Fuses / Fuse blocks
  • G. Contactors
  • H. Overloads
  • I. Loads
    • 1. Single Phase
    • 2. Three Phase
  • J. Grounds
  • K. Transformer
  • L. Distribution
  • M. Load
  • N. Control Section (symbols)
    • 1. Transformers
    • 2. Fuses
    • 3. Jumpers
    • 4. Switches
    • 5. Relays
    • 6. Timers
    • 7. Transducers
    • 8. Sensors
    • 9. Circuit Loads
    • 10. Reactive loads
    • 11. Resistive loads
    • 12. Grounds
    • 13. Earth grounds
    • 14. Equipment grounds
    • 15. Circuit commons

IV. Reading and Using Diagrams

  • A. Schematic Diagrams
    • 1. Electrical equivalence
    • 2. Layout
    • 3. Flow
  • B. Power section
    • 1. Source
    • 2. Current Interruption / Switching – Section
    • 3. Load
  • C. Control section
  • D. Transformer / Power Supply
  • E. Logic Switching
  • F. Individual Circuit Loads
  • G. Current Limiting Devices
  • H. Breakers
  • I. Fuses
  • J. Overloads
  • K. Current Interrupting Devices
  • L. Switches
  • M. Contactors
  • N. Relays
  • O. Notes and References
  • P. Numbering and labeling
  • Q. Components
  • R. Wires
  • S. Lines / Rungs
  • T. Terminals

V. Facility Power Distribution and Electrical Floor Plan

  • A. Locating problems
  • B. Isolating circuits

VI. Equipment Wiring Diagrams

  • A. Component location
  • B. Terminal strip identification
  • C. Wire color and termination

VII. Ladder Logic Diagrams

  • A. Purpose
  • B. Symbols
  • C. Rung Numbering
  • D. Labels
  • E. Boolean logic
  • F. Qualifying and Permissive circuit

VIII. Practical Applications for Maintenance Technicians

  • A. Hydraulic Equipment
  • B. Pneumatic Equipment
  • C. Variable Frequency Drives
  • D. Sensors and Transducers


CEU value: 1.4

Length of Course Instruction: 14 hours

Who Should Attend

Whether your maintenance staff consists of new hires, engineers or anyone in between, this class can be tailored to meet your specific needs. This course is applicable for maintenance personnel working in manufacturing plants, commercial buildings, hospitals, schools, government buildings, waste water facilities, shopping centers, apartment buildings and related facilities.

Additional Information

Training Provider: TPC Trainco

Course Topics: Industrial Training > Electrical

Training Course Summary: A 2-Day Course for Everyone in Industrial Plants, Public Facilities and Commercial Buildings.

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