Method and device for conditioning electric installations in...

Electrical transmission or interconnection systems – Superimposed unlike currents – Different frequencies or phase

Reexamination Certificate

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C340S315000, C375S257000

Reexamination Certificate

active

07061136

ABSTRACT:
A method and a device for conditioning electric installations in buildings for the rapid transmission of data produces symmetrical transmissions paths, along which high frequency signals can be transmitted with substantially no interference, using low-level emission. By introducing an inductance coil into the neutral conductor, as closely as possible to the earth point of the building, the conductor becomes insulated for high frequencies whereas the remaining conductors constitute the high-frequency earth. The high-frequency communication signals are transmitted between the neutral conductor and the protective conductor. This produces transmission channels with relatively good symmetry and negligible interference, which permit a significantly improved exploitation of resources.

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DIN 50065-1, “Signalling on low voltage . . . ”, Cenelec, Brussels, 1991.
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