How to organize the grounding of electrical appliances in a private house?
As can be seen from the figure, the conductor grounded on the TP is connected to the meter and then fed to the switchboard in the house. T.O. This conductor is not PEN and cannot be divided into PE and N. The house has grounding, as in this case, and properly organize the connection and grounding of devices?
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The grounding protective conductor, if it is the TN-C-S grounding system, must be separated to the meter and to any switching and protective devices.
And it should be borne in mind that the use of grounding in the TN-C-S system is possible only if the line is in normal technical condition and the required number of repeated PEN groundings along the line is made, including at the point of separation. Otherwise, the operation of such grounding carries a danger. In the absence of grounding in private houses, an individual grounding circuit is mounted individually and connected to the grounding of the electrical wiring, while the combined PEN conductor of the supply line is used only as a neutral conductor, that is, it is not connected to the grounding loop - this is the TT grounding system.