Abstract
Four high voltage composite cross-arms have been installed as part of a non-energised trial taking place in the Scottish Highlands. The non-cylindrical geometry of their two main structural members offers improved mechanical strength-to-weight ratio compared to cylindrically-shaped insulators of similar cross-sectional area. The instrumentation system aims to monitor mechanical performance through the use of embedded strain gauges and a combination of a load cell, accelerometer and inclinometer at the cross-arm nose. An industrial data capture and control platform is used to capture sensor outputs and store them until retrieval. Networked cameras with local storage capabilities are used to capture video recordings of the cross-arms. The trial has helped establish handling, transportation and installation procedures. The first results from the instrumentation system indicate the resilience of the cross-arms to winds reaching up to 151 mph (243 km/h) while no irregularities regarding snow and ice accretion have been observed.
| Original language | English |
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| Title of host publication | host publication |
| Editors | Ernst Gockenbach, Christian Eichler, Mohsen Farahani, Markus Fischer, Olaf Gratz, Khoi Pham, Xiang Zhang |
| Place of Publication | Berlin, Germany |
| Publisher | VDE Verlag |
| Publication status | Published - 2011 |
| Event | XVII International Symposium on High Voltage Engineering - Advanced materials and insulation systems: outdoor, indoor, gas insulated Duration: 22 Aug 2011 → 26 Aug 2011 |
Conference
| Conference | XVII International Symposium on High Voltage Engineering |
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| City | Advanced materials and insulation systems: outdoor, indoor, gas insulated |
| Period | 22/08/11 → 26/08/11 |
Keywords
- cross-arm
- high voltage
- overhead line