MOUNTING CABLE, MOSTLY EXPLOSION-PROOF, FOR LOW-SPEED AUTOMATICS SYSTEMS (VERSIONS) Russian patent published in 2011 - IPC H01B7/29 

FIELD: electricity.

SUBSTANCE: cable core includes an even number of insulated single-wire or multiple-wire copper or copper tinned current-conducting strands. A common screen and an extruded polymer moisture-proof shell are laid onto the core. Section of current-conducting strands is selected from a certain row, and two versions of insulation material are provided. In the first version insulation is selected as combined from alternating layers of solid and porous polyethylene. In the second version insulation is selected from cross-linked polyethylene. In both versions various sections have their values of insulation thicknesses.

EFFECT: using mounting cables, mostly explosion-proof ones, for low-speed automatics systems at industrial production facilities will make it possible to arrange digital transfer of automatics signals in highly explosive zones of production facilities with simultaneous transmission of information signals along each pair and power supply for actuating devices with high speed of information transfer.

30 cl, 2 dwg, 2 tbl