In today's complex industrial landscape, a building's electrical system is far more than just a source of power; it is the central nervous system that ensures safety, productivity, and efficiency. This book, Industrial Building Electrical Systems, is designed to be a comprehensive guide that demystifies this critical field. From foundational principles of power distribution to the intricate details of modern control systems, it aims to provide a clear and practical roadmap for understanding, designing, and maintaining the electrical heart of any industrial facility. Our goal is to equip you with the knowledge needed to build and operate robust, safe, and future-proof electrical infrastructure.