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Posted on June 6, 2020 at 11:25pm 0 Comments 0 Likes
In fire alarm systems, components are connected with circuits. Fire alarm circuit is those that get power from the fire alarm control unit.
a fire alarm circuit may be used to control a relay that switches a control circuit that is powered by the emergency control function equipment.
There are four types of fire alarm circuits:
Initiating Device Circuits.
Signaling Line Circuits
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