🎯 Course Description:
This 5-day technical course provides comprehensive training on international electrical drafting standards, schematic interpretation, and the standardized symbols used in engineering drawings for design, construction, installation, and maintenance.
It covers IEC, IEEE, ANSI, ISO, and NFPA (including NFPA 70/NEC) standards, enabling participants to understand and create electrical diagrams such as single-line, wiring, interconnection, loop, and control schematics with proper representation.
Participants will gain hands-on experience interpreting real-world drawings, modifying layouts, and identifying inconsistencies across different drawing types and standards.
👥 Who Should Attend:
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Electrical and instrumentation engineers
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Design and drafting professionals (CAD/CAE operators)
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Maintenance and operations personnel
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Technical project managers and document controllers
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QA/QC inspectors and technical supervisors
🗓️ Day 1: Introduction to Electrical Drawing Standards
| Time | Topic |
|---|---|
| 08:30 – 09:00 | Welcome & Introductions |
| 09:00 – 10:30 | Purpose and Types of Electrical Drawings – Overview |
| 10:30 – 10:45 | ☕ Coffee Break |
| 10:45 – 12:15 | Introduction to International Standards – IEC, IEEE, ANSI, ISO, NEC |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Symbols and Abbreviations – Standard usage and industry practices |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Reading basic schematics and legend interpretation |
🗓️ Day 2: Schematic and Wiring Diagram Fundamentals
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Single-Line Diagrams (SLD) – Format, applications, key elements |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Wiring Diagrams – Terminal blocks, cables, control wiring |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Ladder Diagrams and Logic Schematics – Typical use in control systems |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Hands-on tracing a control circuit on a wiring diagram |
🗓️ Day 3: Symbols, Tagging, and Cross-Referencing
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Standardized Electrical Symbols per IEC/ANSI/IEEE – Switches, relays, motors, VFDs |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Tag Numbering Systems – Loop numbers, equipment tags, I/O designations |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Cross-Referencing in Drawings – Signal tracing across pages and sheets |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Building a tag list and cross-reference table |
🗓️ Day 4: Advanced Diagrams and Panel Layouts
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Interconnection and Loop Diagrams – Use in instrumentation and process systems |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Panel and Control Cabinet Layouts – Internal wiring, front view, side view |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Cable Schedules and Terminal Plans – From design to installation |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Drawing a simplified panel layout from schematic |
🗓️ Day 5: CAD Tools, Verification & Documentation Standards
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Overview of CAD Tools for Electrical Drawings – AutoCAD Electrical, EPLAN, etc. |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Drawing Numbering Systems & Revision Control – Standards for project documentation |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 03:00 | Drawing Review & Quality Checks – Verification process, redlines, as-built updates |
| 03:00 – 03:15 | ☕ Coffee Break |
| 03:15 – 04:30 | Final Q&A, Group Assessment, Certificates Distribution |
📂 Course Materials Provided:
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Electrical symbols and abbreviations reference chart (IEC, ANSI, IEEE)
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Sample schematic drawing package (editable formats)
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Electrical drawing quality checklist
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Tag numbering and loop diagram templates
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CAD layer and title block standards guide
