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To de-energize a circuit, the voltage has to be cut off at the source. This is usually done with a disconnect switch which is located just before the circuit's load. Turning off the breaker on a distribution panel will de-energize the circuit it is feeding. To make sure that the voltage can not be turned back on when work is being done on the circuit, the switch or breaker must have a lock off device to prevent the circuit from being turned on, except by the person that locked the circuit off.
What else can I help you with?
What can a split phase motor use to energize and deenergize the start winding?
A split-phase motor uses a centrifugal switch to energize and de-energize the start winding. The switch is connected in series with the start winding circuit and is typically set to open when the motor reaches about 75-80% of its operating speed, disconnecting the start winding from the power supply.
What type of circuit is one in which all loads are connected in a single loop-?
That is described as a circuit in series, as opposed to a circuit in parallel, in which there is more than one loop.
When one electrical circuit controls another electrical circuit through relay the first circuit is called?
When one electrical circuit controls another circuit through a relay, the first circuit is called the "control circuit." The control circuit operates the relay, which in turn switches the second circuit, known as the "load circuit," on or off. This allows for the control of high-power devices using a low-power signal.
The part of a circuit that closes or opens a circuit?
Generally a circuit breaker (like a light switch) But I guess you could use a resistor of the right resistance If you are talking about the circuit breaker there is an electromagnetic coil in it which get magnetized on a specific amount of current and breaks the circuit
In a circuit the purpose of a switch is to?
In a circuit, the purpose of a switch is to control the current flow to the load by opening the circuit (off) or closing the circuit (on). When the circuit is open, the is no complete loop through which the current can flow. When the switch closes the circuit, it restores the loop, and thus allows the current to flow.
The device used to deenergize circuits automatically when a very small ground fault current flows is the?
A ground fault circuit interrupter is the device used to de-energize the circuit.
The device used to deenergize circuits automatically when a very small ground-fault flows is the?
Ground Fault Circuit Interrupter (GFCI).
Voltage between L1 and Neutral?
This depends on your service voltage and whether you have any step down transformers in the building. The only way to know is to check yourself. Use a voltmeter or multimeter, with one lead on L1 terminal and one lead on Neutral terminal. Set the meter to read AC volts, with a range of at least 300 volts (your reading should either be 277 or 120.) The safest way to do this is to deenergize the circuit, place your leads, and then re-energize the circuit without touching anything. You should be able to get a reading without touching anything at all.
Why is the circuit a circuit?
Because circuit is a circuit.
What can a split phase motor use to energize and deenergize the start winding?
A split-phase motor uses a centrifugal switch to energize and de-energize the start winding. The switch is connected in series with the start winding circuit and is typically set to open when the motor reaches about 75-80% of its operating speed, disconnecting the start winding from the power supply.
What is a circuit with no load?
An open circuit or a short-circuit (if that circuit is complete).
What type of circuit has more than one circuit on a wire a series circuit or a parallel circuit?
A parallel circuit is :)
What are the requirements for distribution board and what does it have?
One of the most important requirements is to deenergize all circuits at a work station. A rubber or deck mat must be used to check all energized equipment. A distribution board should always be connected to the breaker/ fuse box and control load box.
How is a series circuit and a parallel circuit like their circuit names?
A series circuit is actually in series, but a parallel circuit, is Parallel
Is the circuit where is the is the circuit where is the circuit breaker for the?
The circuit breaker for the headlights is intergrated with the headlight switch.
Closed path where electric current can flow is called a?
I guess Electric Circuit....
When a circuit has no openings?
The circuit is considered a closed circuit.
