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if load is wired in a circuit that has multiple switches in series with it What conditions must be present in order for the load to be energized?
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To test for resistance in a circuit should be energized or de-energized?
To test for resistance in a circuit, the circuit should be de-energized.
Why is it that we often see multiple switches wired in series with a load?
Deadman or failsafe switches. Think of them as an and gate logic circuit...all switches must be on (1) in order to power the load (1).
Can you use buzzer instead of led in a circuit?
Sure. If you want sound when the circuit is energized, use a buzzer. If you want a visual indication when the circuit is energized, use an LED.
Which electrical test requires the supply to be energized?
Testing of an electrical circuit for voltage requires the supply to be energized.
What will happen if a phase and neutral test by a mutimeter shows continuity?
If the test shows that there is a continuity between the phase leg and the neutral with no load connected, then that circuit should not be energized. If the circuit was energized then the fuse or breaker protecting that leg will trip the circuit open.
The load interrupter switches of the primary switching center can be operated when the circuit is energized?
true
To test for resistance in a circuit should be energized or de-energized?
To test for resistance in a circuit, the circuit should be de-energized.
Why is it that we often see multiple switches wired in series with a load?
Deadman or failsafe switches. Think of them as an and gate logic circuit...all switches must be on (1) in order to power the load (1).
Can you use buzzer instead of led in a circuit?
Sure. If you want sound when the circuit is energized, use a buzzer. If you want a visual indication when the circuit is energized, use an LED.
Can a switch in the off position cause electrical short circuit?
No, once the switch is turned off the circuit is de energized. A de energized circuit can not be shorted out to create a fault.
What is needed if a certain circuit in a vehicle caught fire due to a short circuit?
This circuit needed to have a fuse installed before the circuit was energized. Now the circuit is going to need new wiring along with a fuse before the system is re energized.
What does a completed electrical circuit provide?
A completed electrical circuit provides a current path for electron flow. Circuits that are complete (have completed electrical connections) will "power up" and do what they are supposed to do when energized. An on/off switch completes or breaks an electrical circuit allowing it to be energized or de-energized.
Which electrical test requires the supply to be energized?
Testing of an electrical circuit for voltage requires the supply to be energized.
Why switch is always connected in the phase?
Switches are used to isolate the supply voltage from the connected load. This isolation is needed to be able to work on equipment in the de-energized state. Without the switch in the circuit this could not be accomplished.
What are the switches in the circuit used for?
To open and close the circuit.
What are the switches in the circuit use for?
To open and close the circuit.
Always treat electrical wires in a circuit as being?
Energized.
