FIELD: power engineering. SUBSTANCE: system of lines with at least two conductors for power transmission has all conductors except for one split to compensate at least partially for magnetic fields in space approximately parallel to line system; single strands of each of split conductors are arranged at certain angular symmetry to surface determined by longitudinal spread of non-split conductor and point lying in compensation area of space or else single strands of separate split conductors are arranged at approximately, or better full, circular symmetry around non- split conductor. EFFECT: reduced residual field harmful for living beings. 30 cl, 34 dwg
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