“What came first — the distribution equipment or the coordination study?” is the electrical equivalent of the timeless chicken-or-egg dilemma, according to an article on the Electrical Construction & Maintenance website.
A selectively coordinated system means that each overcurrent protective device (OCPD) in an electrical distribution system does its job in the correct order.
Selective coordination has been required for emergency systems in healthcare facilities since 1985.
The discussion starts: How can I submit equipment for you to review if I don’t know if it coordinates? The reply is typically: How do you know it coordinates if you don’t submit equipment for the coordination study?
According to the article, the answer to the question, “What came first . . . ” is they walked across the street together.
Building Envelope Design: Beyond Energy Efficiency
Outpatient Surge Reshapes Long-Term Strategy for Medical Outpatient Buildings
Mercy Medical Center to Be Integrated into Baystate Health
Managing IAQ in Healthcare Facilities During Wildfires
Building Hospital Resilience in an Era of Extreme Weather