Course Details

Electrical Drawings

Course Overview

The course includes an induction session to welcome and orientate the candidate, and familiarize them with the training centre, health and safety requirements and other important policies and procedures. The training consists of a mix of classroom and workshop sessions and various assessments. Upon successful completion, the candidate will gain the knowledge and understanding to enhance their existing skills and be able to correctly identify equipment and components from various types of drawings.

The course is designed for an apprentice or beginner who would like to work as an electrician or draftsman-electrical.

The candidate should have basic knowledge and skills in electrical engineering.

Upon completing the training course, candidates will be awarded a ‘Certificate of Attendance’ from NTI, attested by the Ministry of Manpower.

Other Details

ELECTRICAL DRAWINGS

  • Drawings – relevance to engineering
  • Standards & their necessity
  • CAD & drawing standards
  • Drawings in plant engineering
  • Manufacturing organization
  • Typical engineering drawing & its parts

TWO DIMENSIONAL DRAWINGS

  • Different types of drawing
  • Electrical layout drawing & types
  • Area classification drawing
  • Wiring diagram, Drawing scales, block
  • Sectional drawing & Block diagram
  • Symbol for various types of drawings
  • Symbols as per electro-technology standards
  • Use of non-standard symbols

LINE & LOGIC DIAGRAMS

  • Power & control circuit diagrams
  • Commonly used symbols
  • Applications of schematic diagrams
  • Single line diagram – advantages & example
  • Layout Drawings
  • Single Line Diagrams
  • Schematic Drawings
  • Wiring Diagrams
  • As-built Drawings
  • RED Worked Drawings
  • Drawing Approvals
  • Drawing Amendments
  • Drawing and Documentation Control
  • Symbols
  • Ladder Logic
  • Terminal numbers
  • Wire Numbers
  • Installation Drawings
  • Interface and DCS Drawings
  • 3-line diagram – applications
  • Terms associated with single line diagram
  • Purpose of schematic diagram
  • Cross-reference between coils and contacts

CABLING, WIRING LAYOUT AND CABLE SCHEDULE

  • Different types of cabling drawings
  • Wiring diagrams
  • Example of cable routing schedule
  • Cable system drawings
  • Example for cable layout
  • Cable tray installation

EXAMINE AND DISCUSS

  • Different types of wiring drawings
  • Difference between cabling & wiring drawings
  • Cable schedule
  • Example of cable schedule
  • Example of conduit/cable tray schedule
  • Practical exercise – wiring drawing
  • Conventions used for layout drawing

EXPERIENTIAL LEARNING EXERCISE

  • Draw Single-line diagrams for electrical installation
  • Select components for DOL
  • Draw a circuit of control and Main wiring – 220V and 415V 3 phase systems
  • Draw a Single-line diagrams for FORWARD- REVERSE
  • Draw a circuit of control and MAIN wiring – STAR/DELTA
  • Designing of power supply for the building with SLD

By the end of the module the candidate will be able to:

  • Find and cross reference between the information on different drawings within a set.
  • Draw schematic diagrams from various sources.
  • Recognise the different forms of electrical drawing in use and their application.
  • Produce a schematic from given information.
  • Demonstrate an understanding of electrical drawing symbols and their application.
  • Read an electrical control circuit schematic diagram to identify the sequence of circuit operation.
  • Use a schematic diagram for fault diagnosis.
  • Produce a schematic diagram from a wiring diagram.
Online (Area9)