UL 9540A provides a methodology for testing a system's safety-related behavior when the design or installation conditions of an ESS exceed the limits set by the National Fire Protection Association (NFPA) 855, NFPA 1, the International Fire Code (IFC), or the International.
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.