ELECTRIC CABLE WITH STRAIN-GAGE AND CONTROL SYSTEM AND METHOD FOR STRAIN DETECTION IN AT LEAST ONE ELECTRIC CABLE Russian patent published in 2014 - IPC H01B7/32 G01L1/24 

FIELD: electricity.

SUBSTANCE: electric cable with strain-gage located longitudinally along the cable and containing strain-gage optical fibre installed in flexible neutral area that surrounds and includes flexible neutral longitudinal axis of the electric cable, and at least two longitudinal structural elements where at least one of at least two longitudinal structural elements represent a core containing electric conductor with strain-gage in-built into filler resistant to strain; it connects at least one of at least two longitudinal structural elements with strain-gage. By means of open cable structure strain endured by at least one of at least two longitudinal structural elements can be transmitted to strain-gage at least in stretched state. In preferred variants of implementation the electric cable represents high-duty cable. Invention is also related to control method of strain and, preferably, temperature of electric cable.

EFFECT: invention is oriented to creation of deformation control system to measure at least stretching strain for several electrical cables and, in particular, several high-duty cables.

30 cl, 12 dwg