Free online courseElectrical Design Complete Guide

Course Description

Solid electrical design is more than choosing a cable size or picking a breaker from a catalog. It is the skill of turning a real building or facility into a safe, compliant, and efficient power system that can handle everyday operation, future expansion, and abnormal conditions without surprises. This course is built to help you strengthen that skill through practical engineering logic: estimating loads, applying demand and diversity factors, and translating requirements into a defensible design.

You will learn to think like a designer when it comes to voltage drop, conductor selection, derating, conduit fill, and the tradeoffs between copper and aluminum. Instead of treating calculations as isolated formulas, the course connects them to the impact they have on performance, reliability, and cost. You will also build confidence with the protection side of the project: understanding panel board roles, single line diagrams, selecting suitable low- and medium-voltage devices, and interpreting trip curves so coordination and safety make sense in practice.

Because real systems need resilience, the course also addresses power quality and continuity topics that commonly appear in professional work. You will clarify what power factor is, why it matters to equipment and bills, and how capacitor banks are sized and applied. You will explore backup and transfer solutions such as UPS selection and automatic transfer switches, with the mindset of maintaining critical loads during outages while respecting practical constraints and engineering margins.

Finally, the course brings critical safety considerations into the design workflow through lightning protection concepts and risk-based thinking aligned with widely used standards. Along the way, you will practice reading architectural and electrical drawings so you can coordinate design intent with site realities. By the end, you should feel better prepared to review designs, justify decisions, and produce clearer, more professional electrical documentation for real projects.