FIELD: electrical engineering. SUBSTANCE: grounding connection for mobile electrical installations has conductive body linked to frame of electrical installation. Conductive body is fabricated in the form of base attached under base of electrical installation. Conductive walls in the form of blinds collapsible with lowering of base are attached to base. Current-carrying foam is put between base and ground. EFFECT: enhanced reliability of grounding, increased safety of operation of electrical installation. 2 dwg
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