Summary

High Temperature Low Sag (HTLS) conductors represent a significant evolution in overhead transmission line technology, developed to meet the increasing demand of modern power networks. In particular, the adoption of Polymeric Matrix Composites (PMC) HTLS conductors is rapidly expanding and becoming a widely utilized solution in modern power transmission systems.

Traditional composite-core conductors provide high strength and low sag, but they lack the ability to directly measure the thermal, mechanical, and dynamic conditions experienced during operation. To address this limitation, this paper investigate an Advanced PMC HTLS

Conductor core with distributed sensing.

There is increasing discussion about the thermal degradation of composite materials and its impact on the service life of conductors, yet there is a lack of information regarding the actual temperatures experienced by the conductor, particularly by the composite core, during real operating conditions. This information is essential for the future maintenance of the line. 1 The objective of this paper is to experimentally test distributed temperature measurement embedded in a composite core. A dedicated test setup was implemented in which the composite core was heated by controlled current injection and monitored using Brillouin-based Distributed

Temperature Sensing (DTS). The comparison between distributed measurements and reference surface temperatures confirms that the integrated optical fibres enable fully distributed temperature monitoring.

Additional informations

Publication type Session Materials
Reference B2_11071_2026
Publication year
Publisher CIGRE
Country Italy
Study committees
File size 1 MB
Price for non member 30 €
Price for member 30 €

Authors

PERONI Davide - DE ANGELI PRODOTTI

Keywords

Composite core conductors, Monitoring, HTLS, Distributed sensing, Maintenance of line, Optical fiber sensor, Real-time detection, Thermal aging, Vibrations.

Monitoring of Advanced Composite Core HTLS Conductors with distributed sensing