🔍 Key Concepts

• Fusible link purpose in ventilation fire dampers • What happens to a fusible link when exposed to high heat • Whether fusible links are single-use safety devices or reusable

💭 Think About

• Think about how a fusible link actually operates during a fire: does it melt and release the damper, or does it reset itself afterward? • If a safety device is exposed to fire or high heat and activates, would you normally reuse it, test it with real heat, or replace it? • Consider what would be realistic and safe requirements for every inspection versus only after activation.

✅ Before You Answer

• Verify whether a fusible link is designed to melt once and then be replaced, or to reset automatically. • Consider whether routinely applying open flame/heat to a safety device is a standard test method or a potential hazard. • Ask whether regulations would realistically require replacement at every inspection, even if the device has never activated.