Strand-guiding segment of a strand guide of a continuous casting and method of operating a strand guide segment

The invention relates to a strand guide segment (1) of a strand guide (2) of a continuous casting plant (3), wherein the strand guide segment (1) a support frame (4), in which a number of strand guide rollers (5) is mounted, wherein, in the carrier frame (4) means (6) for detecting the strain and / or the temperature of the carrier frame (4) are arranged. To provide accurate values ​​of the temperature and / or to be able to win in an improved manner over the state of stress of the support frame in a simple manner, the invention provides that the means (6) for detecting the strain and / or the temperature of the carrier frame (4) at least comprise an optical waveguide (7), which is in the direction of the axis (a) of the strand guide roller (5) or perpendicular thereto in the strand conveying direction (F) in the support frame (4). The invention further relates to a method of operating a strand guide segment.