This guide covers essential NEC Article 250 requirements for industrial facilities, OSHA grounding standards and compliance strategies, and practical testing and maintenance procedures that ensure your grounding system performs when it matters most. Not only does it protect personnel by ensuring safe voltage levels on exposed metal surfaces, but it also safeguards sensitive electronic equipment from electrical disturbances like transients and. Abstract: Discussed in this recommended practice is the system grounding of industrial and commercial power systems. Whether you're designing a new facility, upgrading existing infrastructure, or. This publication gives you general guidelines for installing an Allen-Bradley industrial automation system that may include programmable controllers, industrial computers, operator-interface terminals, display devices, and communication networks. While these guidelines apply to the majority of. Note: A grounding switch is also commonly referred to as an earthing switch, especially in regions using IEC standards (Europe, Asia, Africa). Both terms describe the same function. What Is a Grounding Switch? A grounding switch is a protective device used in power systems to safely ground. The subject of grounding in electronics is broad and complex, spanning across a variety of functions and objectives.