SYMMETRICAL FIRE-RESISTANT CABLE Russian patent published in 2009 - IPC H01B11/02 H01B7/295 

Abstract RU 2370839 C1

FIELD: electric engineering.

SUBSTANCE: invention is related to cable technology, to symmetrical fire-resistant cables for transfer of high-frequency signals in communication systems, industrial automation and systems of fire protection alarms in nuclear power plants, in particular inside containment. Cable comprises at least one symmetrical pair of current-conducting strands insulated by fire-resistant organosilicic rubber and polyimide film, covering each of insulated strands, and separating them with single layer. At the same time film fixes insulated strands between each other, providing permanent symmetry of pair along cable length.

EFFECT: increased reliability, higher service life of fire-resistant symmetrical cable under conditions of operation inside containment of nuclear power plants, with provision of minimum level of losses and preservation of rated parametres.

2 dwg

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RU 2 370 839 C1

Authors

Lobanov Andrej Vasil'Evich

Fursa Julija Aleksandrovna

Kuznetsov Roman Gennad'Evich

Ljakisheva Julija Vladimirovna

Dates

2009-10-20Published

2008-07-21Filed