Power circuit carries high power and costly devices. If there is some unwanted power signal(noise) in the wire it can damage the device. To reduce this effect earth is necessary.
Lighting circuit carries low power(current).So, we ignore the earth terminal.
Answer for UK
Lighting cables do normally include a protective (earth) conductor, and this is terminated in each ceiling rose, as are the line and neutral conductors. Whether or not the earth terminal is actually then used depends on the luminaire (light fitting). For example, if it is simply a suspended lamp then the earth connection is not used; on the other hand, if it is a fluorescent lamp enclosed in a metal enclosure, then the enclosure is connected to the earth terminal.
To protect local residents and agencies.
Add SIM card to transfer electrical voltages caused by lightning, and a connection to the land that comes on the device.
The act of moving or revolving around, or as in a circle or orbit; a revolution; as, the periodical circuit of the earth round the sun.
An isolation transformer is a mutual transformer having a voltage ratio of 1:1, so that the secondary circuit is electrically isolated from the primary circuit, yet subject to the same voltage.An earth protection relay is a category of protective relay that responds to an earth fault monitored by a current transformer (CT). In the event of an earth fault being detected by the CT, the relay with activate the trip circuit to a circuit breaker which will then disconnect the fault.
They mean the same thing, a current to ground/earth that shouldn't exist in the circuit.
Basically, it's an earth connection applied for the purpose of making apparatus safe to work on before a Permit to Work or Sanction for Test is issued. Disconnect from power, test dead, apply CME.
when it takes the static discharge wich gets let behind and nutralizes it
A ground (earth) wire is needed in not just a light circuit but in all circuits that are now installed.
Better to do so
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earth continuity insulation resistance polarity
Back into earth.
The whole point of earthing or grounding is to provide a low-impedance path back to the supply transformer in the event of an earth fault within a wiring installation, which will then enable sufficient earth-fault current to flow in order to operate the circuit's protective device (circuit breaker or fuse). When designing the circuit's protection system, it is therefore necessary to determine the resistance of the earth (ground) as it determines the value of this current.
there is only one raikage, he is the lighting kage, there are five kages, water earth fire lighting and wind
yes lightning is a solid
i moves the lightining into the earth
the job of star is (to give lighting in to earth,)
The star or neutral point is earthed at the supply transformer to prevent the system building up a static electric charge in dry weather.
lighting and fire