Electrical Drawings Module
This module provides a practical, industry-oriented introduction to the preparation and interpretation of electrical drawings, a skill rarely covered in academic programs. Designed for fresh graduates and engineers entering design roles, it covers the full spectrum of drawings used in real-world projects, from Single Line Diagrams for power distribution and protection schemes to General Arrangement, cable, earthing, lighting, and scheme drawings, Interconnection & Cable schedule. Participants will learn the rules, symbols, conventions, and standards that underpin professional documentation, as well as the ability to read, prepare, and verify drawings with confidence. By the end, learners will be equipped to handle electrical drawings to industry standards, bridging the important skill gap between classroom learning and workplace demands.
INR 2500/-
INR 2000/-
Electrical Drawings Module
4 Hours of Training
This module offers a rare, industry-focused perspective not typically covered in academic curricula. It is highly recommended for fresh graduates from technical institutes, engineers newly inducted into design departments, or anyone aiming to bridge the gap between theoretical knowledge and practical project execution. The series equips you with the skills to understand, prepare, and interpret the full range of electrical drawings required in real- world projects. You will gain familiarity with the symbols, legends, conventions, and standards used across the industry, along with the ability to navigate and interpret complex documentation with confidence.
You will start with the fundamental rules of preparing electrical drawings, including the correct use of legends, symbols, and the representation of Normally Open (NO) and Normally Closed (NC) contacts under energized and de-energized coil conditions. You will explore the different types of drawings used in a project starting with Single Line Diagrams (SLDs)—both key power distribution layouts for large-scale power plants and EHV switchyards, complete with equipment coding conventions based on NEMA device numbers.
The module next covers Metering and Protection SLDs, where you will learn how CT and PT cores are arranged for metering and protection, how relays are designated and connected, and what broad specifications must be captured in the drawings.
From there, you will move into General Arrangement (GA) and Layout Drawings, examining real-world examples such as switchgear rooms, outdoor/indoor transformers, PCCs, and MLDBs, along with cable trench/tray layouts. Practical design considerations—such as accessibility, statutory clearance requirements, draw out space for breaker trolley, busduct layouts, dummy panels, and foundation details—are explained in depth.
You will also learn to prepare Cable Tray and Trench Layouts, factoring in bending radius requirements, multi-tier arrangements for power, control, and instrumentation cables, interference management with other services like pipping, and provisions for road crossings.
The Earthing Layout section addresses AIS and GIS installations, horizontal and vertical electrode placement, earth pit details and special considerations in multi-story facilities for GIS installation.
The Lighting Layout section covers lux level requirements, phase balancing in MLDBs and LPs, designation of lighting fixtures, normal vs. emergency lighting, and coordination with other services for conduit layout.
A major part of the course focuses on Scheme Drawings, where you will work through examples such as DOL starting scheme, breaker trip/close circuits, AC and DC control schemes, and multi-page drawing navigation techniques. You will also understand the use of color-coded ferrules and the cross-referencing of contacts of a device and device pertaining to contacts, across different pages.
Finally, you will study Cable and Interconnection Schedules, including wire numbering, terminal block conventions, termination charts, and how to document interconnection and cable schedule using practical examples such as motor feeder arrangements.
By the end of this module, you will be equipped with the ability to read, prepare, and verify electrical drawings to a professional standard—skills that will significantly enhance your effectiveness in a design
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Sample Notes For This Module
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