Rumored Buzz on fire alarm systems
smoke, induce a fire sprinkler. Most fire sprinkler heads come Geared up that has a glycerin-stuffed glass bulb. Given that the glycerin heats up a result of the warmth from a fire under, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler switch senses this movement of drinking water and transmits a sign on the