Overhead Lines
Omnisens DITEST-LTM is an ideal solution for the monitoring of overhead line sag using distributed temperature monitoring.
Overhead lines provide most of the transmission requirement, and endure the most hostile conditions. Real time monitoring of such assets can anticipate major failures and blackouts.
Single mode fibers contained in the optical ground wire are used to monitor the temperature in areas where icing is likely. Extra load can then be applied to the conductors to heat them up and avoid ice forming and the risk of damage to the structure.
Diurnal and seasonal weather changes cause the lines to sag, with the danger of grounding. Sag can be calculated from temperature, but because it uses Brillouin scattering, the Omnisens Ditest can also monitor strain directly, offering a valuable tool for overhead line design and operation.
Ditest strain measurement capability can be exploited to monitor the effect of the power lines induced stresses on the ageing of the communication fibers.
DITEST-AIM : Long Range distributed temperature and strain monitoring solution
