MOUNTING CABLE, MOSTLY EXPLOSION-PROOF, FOR HIGH-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. Four versions of insulation material and availability of individual screens are provided with insulation from alternating layers of solid and porous polyethylene and from cross-linked polyethylene. In each version there is a range of permissible insulation thickness values selected to comply with strand sections.

EFFECT: using cables makes 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 speed of information transfer that considerably exceeds the existing one.

54 cl, 2 dwg, 2 tbl