FIELD: communication. SUBSTANCE: new method of grounding of wire communication installations in permafrost soils uses heat of ventilation stream originating from building where installations are mounted. Ventilation air is supplied over system of parallel pipes laid in soil which are simultaneously both sources of energy for defrosting of surrounding soil and grounding connections. As a version of method there is proposed to use separate grounding rods arranged within zone of heat effect of system of pipes. EFFECT: simplified design. 2 cl, 2 dwg
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