In arc flash risk assessment, the condition of maintenance is a consideration.

• A. True
• B. False
• C. Not specified
• D. Only for some equipment

Answer: (A)

Maintenance condition matters because the actual state of the equipment affects how a fault behaves and how quickly protective devices respond. Well-maintained gear typically has tight, clean terminations, intact insulation, and properly tested protection, which tends to lower the energy released in an arc and ensure faster, more reliable tripping. If equipment isn’t well maintained, you can see issues like loose connections, degraded insulation, corrosion, or miscalibrated relays, which can alter fault currents and slow or misoperate protective devices, increasing the incident energy an arc flash could deliver. Because arc flash risk assessment aims to reflect the real operating state of the system, the maintenance condition must be considered. That’s why the statement is true for all equipment, not just a subset or something left unspecified.