How to Calculate Size of Circuit Breaker Sizing of Circuit Breaker
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Course Description
Circuit Breaker Sizing Calculation course,
in this course you’ll learn essential techniques to determine the correct circuit breaker size for various electrical applications, ensuring safe and efficient operation. This course starts with foundational concepts, explaining the role of circuit breakers in protecting electrical systems from overloads and short circuits. You'll explore different factors involved in sizing, including load current, circuit voltage, and application type (residential, commercial, or industrial).
The course provides a step-by-step approach to calculating breaker size, covering considerations for continuous and non-continuous loads, as well as adjusting for motor loads and HVAC systems, which require special sizing techniques. You will learn to use the National Electrical Code (NEC) guidelines to ensure compliance and safety in all calculations. Practical examples and exercises reinforce key principles, such as calculating ampacity, understanding derating factors, and selecting the appropriate breaker for specific wire sizes and materials.
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