Defrosting or treatment device of snow or ice on roof area, has heating surface and introduction of energy taking place by electrical energy and surface is implemented as arrangement of suitable metallic conductor with or without sheathing

摘要

The device has heating surface and introduction of energy takes place by electrical energy (direct or alternating current). The heating surface is implemented as arrangement of suitable metallic conductor with or without sheathing in form of cables, wires, spirals, nets or lattices with mesh sizes and/or distances of 1 to 50 cm or conductive foils.