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Understanding and overview of low-voltage and medium-voltage electrical drawings

Using drawings from various distribution systems and equipment, attendees will learn standard symbols and drawing styles used to represent electrical distribution systems and equipment. In the full course, attendees will explore system and equipment drawings that will assist in LOTO planning and implementation, start-up and commissioning activities, and troubleshooting. Full course attendees will receive materials and a packet with all course drawings.

Target audience

Electricians, project managers, field service engineers or technicians whose job responsibilities will include review and editing of electrical drawings

Learning objective

The goal of this eight-hour live online instructor-led course is to have the attendees become familiar with reading and understanding various drawing types and styles for electrical distribution systems and equipment.

Course abstract

Using drawings from various distribution systems and equipment, attendees will learn standard symbols and drawing styles used to represent electrical distribution systems and equipment. Attendees will explore in-depth system and equipment drawings that will assist in LOTO planning and implementation, start-up and commissioning activities, and troubleshooting.

Course options

Full course

  • 8 hours, 0.7 CEUs
  • Location: Microsoft Teams
  • To receive CEUs, candidates must attend the entire course
  • Tuition $550 USD

Full course 

Deep-dive into drawing title blocks, and identification of the various types of electrical drawings.  Attendees will identify equipment with symbols, read system and equipment drawings, and learn how to interpret control logic used in schematics.

Course topics

  • Standards
    • IEEE
    • Symbols
    • Distribution equipment
    • Protective devices
    • Device numbers
  • Types
    • System drawings
    • Single line
    • Riser
    • Impedance
  • Equipment-specific
    • Layout
    • Three-line
    • Wiring
    • Control schematics

Course materials/activities

  • 207-page attendee manual
  • 40-page drawing packet with all course drawings
  • Example exercises on various drawing types
    • One-line
    • Three-line
    • Control schematics
    • Wiring diagrams
  • Real-world examples
  • Question and answer session
  • Graded, in-depth knowledge check