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Electrical Ladder Drawings, Schematics and Diagrams

A 2-Day Course to Help You Understand All the Electrical Languages
that Run your Facility and Equipment

Both Days - $990

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"Exactly what I wanted"
Raymond Mitchell - Technical Planner - Philip Morris USA

"Explained with good examples and exercises."
Adam Ransick – Test Engineer – Rolls Royce

Purpose of Seminar:

In the field of equipment maintenance, installation or modification, the ability to read and understand electrical ladder drawings, schematics and diagrams is an absolute must. Several types of drawings and diagrams will be examined during this electrical course including Block, Pictorial, One-line, Wiring, Terminal, and Schematic. The differences between these drawings will be emphasized and the purpose and flow of each type will be clarified. In order to learn the symbolic language, you must start at the beginning. In doing so, individual component symbols will be presented along with an explanation of their function and purpose in the circuit. In order to make it easier to relate the diagrams to the actual equipment, students will see pictorial examples or photos of the components along with the description. Training will include exercises where students create schematic diagrams based on circuit descriptions, as well as interpreting schematic drawings so that they can provide verbal or written circuit descriptions..

Who Should Take This Course?

This course is designed for anyone who needs to understand electrical drawings and schematics for servicing and troubleshooting facility and industrial electrical systems. Attendees come from a wide variety of industries, skill-levels, company sizes, and backgrounds, so if you're not sure you'll fit in or will benefit from these classes, don't worry - you will - as long as you work with electricity! People who will benefit from attending this seminar include…

All maintenance personnel in:

  • Manufacturing Plants
  • Commercial Buildings
  • Hospitals
  • Waste Water Facilities
  • Schools
  • Government Buildings
  • Research Facilities
  • Shopping Centers
  • Airports
  • Hotels
  • Apartment Buildings


  • Mechanics
  • HVAC Technicians
  • Machine Operators
  • Apprentices
  • Alarm Technicians
  • Electricians
  • Facility Managers
  • Non-Electrical Engineers
  • Plant & Building Engineers
  • Stationary Engineers
  • Plant & Facility Managers
  • Multi-craft/Cross Training Personnel

Training Outcomes

Upon completion of this course students will receive a training certificate indicating that the student has learned to:

  1. Read and Interpret Drawings and Schematics
  2. Identify electrical components
  3. Relate drawings to real world applications
  4. Use drawings and schematics for Troubleshooting
  5. Use drawings and schematics to Communicate with others
  6. Create your own drawings
  7. Identify and use:
    1. Block Diagrams
    2. Pictorials
    3. Electrical Formulas
    4. One-line Diagrams
    5. Wiring Diagrams
    6. Terminal Diagrams
    7. Schematics
    8. Electrical Symbols
    9. Power Distribution
    10. Electrical Floor Plans
    11. PLC Ladder Logic

And to be 100% certain you get the training you need, students are encouraged to bring drawings, applications or case studies of equipment in their own facility for discussion during class.

Discussion Topics

Electrical Fundamentals for Print Reading

  • Clarifying Terminology
  • Effects of Current Flow
  • Voltage Drop Calculations
  • Understanding Ampacity Tables
  • Importance of Electrical Drawings
  • NEC® Drawing Requirements
  • Drawing Control

Electrical Drawing Basics

  • Types and Uses of Electrical Drawings
  • Drawing Preparation and Ownership
  • Design/Bid/Build Process
  • Written Specifications

Electrical Drawings for Building Maintenance & Construction

  • Component Symbols
    • Wiring & Connections
    • Power Source
    • Breakers
    • Disconnects
    • Fuses
    • Fuse Block
    • Contactors
    • Overloads
    • Loads
    • Grounds
    • Others
  • Electrical Drawings
    • Site or Plot Plan
    • Elevation
    • Section
    • Detail
    • Power Riser
    • One-Line Diagram
    • Electrical Floor Plan
    • Lighting Plan
    • Schedules
    • Feeder Schedules
    • Lighting Schedules
    • Panelboard Schedules
    • Motor & Equipment Schedules
    • Wiring Diagrams
  • Reading & Interpreting Code Requirements
  • Real World Applications

Industrial Control Prints

  • Component Symbols
    • Transformers
    • Fuses
    • Jumpers
    • Switches
    • Relays
    • Timers
    • Transducers
    • Sensors
    • Circuit Loads
    • Grounds
    • Circuit Commons
    • Others
  • Understanding Relay Operation
  • Electrical Schematic Diagrams
  • Motor Termination Diagrams
  • Electrical Ladder Diagrams for Control Circuits
  • Block Diagrams
  • IEC Symbols
  • NEMA and IEC Circuit Comparison
  • Reading & Interpreting Basic Motor Control Circuits
  • Forward-Reverse Motor control

Real-World Applications

  • Conveyors
  • Air Compressors
  • HVAC Controls
  • Burner Combustion
  • Extruder DC Drive Motor (VSD)
  • Process Temperature Controls
  • Exterior Lighting Controls
  • Generator Controls
  • Chemical Process Controls
  • Others

PLC Ladder Diagrams

  • PLC Basics - Inputs & Outputs
  • Comparison of Relay Logic to PLC Ladder Logic
  • Real-World Applications

Cross-Referencing International & European Symbols

Optional ATMT Certification® Testing

An optional ATMT® Certification exam is available for this training topic. It may be taken online or as a written test any time after the class is over. Please visit ATMT® Testing and Certification for more information.

Continuing Education Units (CEUs)

All students attending our seminars receive a personalized Certificate of Completion and .8 CEUs (Continuing Education Units) per day of training. Over 40,000 employers and government agencies who have sent their employees to our classes accept American Trainco CEUs for continuing education requirements. Our administration and record keeping practices meet or exceed the standards of ACE (American Council on Education) and we are able to provide transcripts of all classes attended and tests taken by individual students. Please contact us if our CEUs are not yet accepted by your authority. We will initiate an application to get the approval process started.

In House Training

You can bring this or any American Trainco seminar directly to your plant or facility. We offer dozens of courses covering a broad range of maintenance and maintenance management topics. Our expert instructors are among the most experienced in the industry and can modify or customize training programs to meet your specific needs - whether you need a short refresher course or an in depth program that focuses on your equipment and processes. In house training reduces the training cost per employee and limits the time required away from work. There are several other advantages of in house training as well.

Request a quote for in-house training

No Risk Registration & Money-Back Guarantee

U.S. and Canada

If you're not yet sure you'll be able to attend a seminar, you can still make a reservation to hold your space in class. While payment is due prior to the start of the seminar, you may choose a full refund or credit for cancellations made at least 24 hours in advance. Student substitutions can also be freely made at any time prior to the start of the seminar. Refunds will not be issued for registered attendees who fail to show up and have not given a notice of cancellation.

In the rare event that should you not receive the expected value after attending our seminar, simply notify us in writing of your reasons and your money will be promptly refunded.

International and Overseas

If you're not yet sure you'll be able to attend a seminar, you can still make a reservation to hold your space in class. However, payment for international and overseas students must be made prior to the start of the seminar (in Dollars U.S.), and all seminar fees are non-refundable. Student substitutions can be freely made at any time prior to the start of the seminar. American Trainco’s Money-Back Guarantee does not apply for international and overseas registrations.

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