I have a QuestionWhat are the basic parts generally available in any panel? I mean any brand. Let's say Simplex, Siemens, Edwards, Notifier, whatever it may be. There must be some default parts in all the panels. Can you please tell me what are and what the functions are?
Signed M T
I sense that you desire to know how a fire alarm system works.
The fire alarm system is made up of devices to detect fire (smoke detectors, heat detectors, pull stations, waterflow switches, etc.) and devices to let people know about the fire (horns, strobes, bells, speakers, etc.)
Between these devices and connected with wires is a control panel. The control panel has a power supply to provide power to the system as a whole, and to charge the backup batteries. The backup batteries are there to keep the fire alarm system powered if the utility power quits.
The control panel also has input and output circuitry, circuitry that makes sure everything is always connected (supervises the inputs and outputs), and circuitry to activate outputs when something happens on an input.
When a detection device senses fire, using building wiring, it tells the control panel about the fire. The control panel uses the building wiring to activate the devices that let people know about the fire.
These are the basic parts to any fire alarm system. Learning the variations on these systems requires a lifetime of learning, and new variations are constantly being developed.
Go out and learn the variations.
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On this website, most references to electrical flow are to the movement of electrons.
Here, electron movement is generally used because it is the electrons that are actually moving. To explain the effects of magnetic forces, the movement of electrons is best.
Conventional current flow, positive charges that appear to be moving in the circuit, will be specified when it is used. The positive electrical forces are not actually moving -- as the electrons are coming and going on an atom, the electrical forces are just loosing or gaining strength. The forces appear to be moving from one atom to the next, but the percieved movement is actually just a result of electron movement. This perceived movement is traveling at a consistent speed, usually around two-thirds the speed of light. To explain the effects of electrostatic forces, the movement of positive charges (conventional current) is best.
See the explanation on which way electricity flows at www.douglaskrantz.com/