FIRE ALARM SYSTEMS FUNDAMENTALS EXPLAINED

smoke, trigger a fire sprinkler. Most fire sprinkler heads appear Geared up having a glycerin-crammed glass bulb. As the glycerin heats up due to warmth from the fire beneath, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler change senses this circulation of h2o and transmits a signal into the fire alarm cont