What is a D-Fault?

What is a D-Fault?

• A. A routine condition with minimal risk
• B. An imminent danger to personnel and the system
• C. A temporary power outage
• D. A normal operating status

Answer: (B)

A D-Fault indicates an imminent danger to both people and the system. It’s not a routine condition or a normal operation; it signals that continuing work could lead to serious injury or damage. When a D-Fault is identified, immediate action is required—stop work, secure the area, de-energize or isolate equipment, and follow emergency shutdown or lockout/tagout procedures, then notify supervision. In short, a D-Fault is about urgent risk to personnel and the equipment, demanding rapid, decisive steps to mitigate it.

A D-Fault indicates an imminent danger to both people and the system. It’s not a routine condition or a normal operation; it signals that continuing work could lead to serious injury or damage. When a D-Fault is identified, immediate action is required—stop work, secure the area, de-energize or isolate equipment, and follow emergency shutdown or lockout/tagout procedures, then notify supervision. In short, a D-Fault is about urgent risk to personnel and the equipment, demanding rapid, decisive steps to mitigate it.