The smart Trick of fire alarm systems That No One is Discussing
smoke, bring about a fire sprinkler. Most fire sprinkler heads come Geared up having a glycerin-loaded glass bulb. Because the glycerin heats up as a result of heat from the fire under, it expands, shatters the glass bulb, and triggers the sprinkler head. The fire sprinkler switch senses this movement of h2o and transmits a sign into the fire alarm