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Topic: Phase on grounding jumpers of the socket

All !
Situation:
In the socket, on grounding jumpers, there is a phase. Thus, the same phase is present at the socket on a phase wire and on grounding, the zero remains a zero and regularly functions.
Question:
Than this situation is dangerous to computer components? Danger to the person was to be affected no, since about it already it is much told.

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Re: Phase on grounding jumpers of the socket

Here there is nothing to consider, such should not be, is urgent cause the electrician and correct a situation.
The absurd task how on such computer to work? Everything that is connected to it, will be under mains voltage. But, if it to close in an inaccessible place and anything to it not to connect, especially on hot will work, basically, anything terrible.

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Re: Phase on grounding jumpers of the socket

Most likely, the wire on the earth is connected to the socket, but not connected to the earth and goes .

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Re: Phase on grounding jumpers of the socket

Andr152152
 
It is possible to check up - to take a bulb and to connect its one end to the grounding jumper in the socket, and other end to a zero explorer. The HARDWARE after all to us did not inform, on the basis of what it drew an output on a phase in the grounding jumper.

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Re: Phase on grounding jumpers of the socket

Andr152152 : everything, the wire on the earth is connected to the socket, but not connected to the earth and goes .

I am assured of it.

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Re: Phase on grounding jumpers of the socket

Dmitry Klimenko
To us did not inform, on the basis of what it drew an output on a phase in the grounding jumper.
Very exact remark. By means of what Fynjy777 defined that on grounding contact a phase and as it defined it - not clearly. Would be such actually, there already all family together with the author of a question would lie  about the computer)))
With the diagnosis it agree - the grounding wire from the socket is not connected to grounding (board casing).

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Re: Phase on grounding jumpers of the socket

Alex G
Would be such actually, there already all family together with the author of a question would lie  about the computer
Not the fact. There was a case at us the electrician instead of the earth on grounding contacts picked up a phase. Noted when technics connected. "Something a current beats" the person told. And the indicator screw-driver showed that not seems to it. The electrician spoke that it is such wire bought smile. But has been forced to alter.
So the version made nulling and then someone somewhere turned wires is quite probable.

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Re: Phase on grounding jumpers of the socket

AYM
There was a case at us the electrician instead of the earth on grounding contacts picked up a phase. Noted when technics connected. "Something a current beats" the person told. And the indicator screw-driver showed that not seems to it. The electrician spoke that it is such wire bought. But has been forced to alter.

Doubtfully. Even it is improbable. But what there was the electrician - such at it and an explanation smile
I explain on fingers. If it on grounding contacts of the socket picked up a phase the computer does not turn on generally. As well as all other (turning on the light) does not turn on, and in the socket pressure will be equal to zero. But on the case there will be the full phase and not "something a current will beat", and to beat amazingly in literal sense. And "something a current beats" is when grounding contact of the socket is not connected to grounding. Then from for the capacity filter on an input impulse , on PC casing will be half pressure of a network (through resistance of capacities) and the indicator screw-driver shows pressure presence.

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Re: Phase on grounding jumpers of the socket

Alex G
At us  not the PC and a switch. With internal . With high-grade cable of a supply and grounding.
Yes, beat. But the person thus stood not on a transiting moreover grounded explorer. So did not kill.

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Re: Phase on grounding jumpers of the socket

In the Russian Federation a neutral , in overwhelming majority of houses and buildings - system TN, in Russian "protective nulling". In real is normal "zero", i.e., between contact of the earth and a phase - phase pressure. And at a warp of phases - on "zero" [and connected c the potential will be it earth contact], easily can pinch from time to time.

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Re: Phase on grounding jumpers of the socket

Wlad402
And at a warp of phases - on "zero" [and connected c the potential will be it earth contact], easily can pinch from time to time.
It if is concerning what on zero (and the earthen contact connected to it) there will be a potential. That is if in apartment there will be where that a "real" earth and if there will be a sufficient warp which in normal operating conditions is not enough for "". There the difference will be 10, well a maximum of 20 volt, and that the last variant not for apartment, and for the private house and long .
Only in case of failure (.. Or a zero breakaway) the difference will be sufficient to note it "to the touch". In all other cases the warp, and impulse  and network filters will be guilty not
AYM
Yes, beat. But the person thus stood not on a transiting moreover grounded explorer. So did not kill.
But I once again want to mark that in this case the instrument (the PC or a switch not very well) will not work. Because if a phase on earthen contact on a supply there will be a zero and the earth. And only if the connecting electrician is dangerous to associates, and he managed to connect two wires of a cable to a phase and one to zero - the instrument will work and on its case there will be a phase.
The incredible thing - is really guilty a cable. At the time of the quality symbol and a universal deficit we occasionally bought some kilometers of a sub-standard cable. At ring-up for connection it was clarified that from the different ends of an integral bay of a cable of a wire quitted different color. Found a thickening on a cable, cut exterior insulation and saw a solution smile. But us fairly notified that it .

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Re: Phase on grounding jumpers of the socket

Alex G
Yes normal there was a cable, without riddles. And a fair phase on the case.  in a switch not just as in the PC. Similar there the earth simply on casing of the device and all.
Adding from 9/29/2017 20:25:
However, this history was in moving of 2009, that switch will already find difficult, I do not remember which was.