Reliable engineering
takes many forms

Multi – challenges and benefits of integrated airline inspections

11 June 2009by admin
by A. Matos André¹, J. Matos², J. Gomes-Mota³; LABELEC SA¹ (Grupo EDP), EDP Distribuição (Grupo EDP)², 3Albatroz Engenharia³
presented at CIRED09 – Session 20, article 0848, Prague, Czech Republic, 8 to 11 June, 2009.


The long experience of LABELEC in airborne infrared (IR) and visual inspections of EDP Distribution overhead electric lines (OHL) is now enriched with the possibility of measuring and localising abnormal clearances between cables and trees or other obstacles. This was achieved using a Laser-Global Positioning System (GPS) solution that started being developed in LABELEC and later on was set ready for operation by Albatroz Engineering. Previously, some experimental track clearances measurements were carried out in distribution OHL, using high-quality but high cost
airborne-topography equipments. Now, the IR detected hotspots and visible anomalies information can be complemented with sufficiently accurate track clearances and its GPS information, using Albatroz system, with only a
small increase in operational costs. The three types of inspection can be performed with a single flight over the transmission or distribution lines, using a medium operational cost helicopter like the Eurocopter Colibri EC
120 B.

The near future may bring the integration of corona effect detection and visualisation into LABELEC multi-system OHL inspections, further contributing to a higher level of efficiency in lines maintenance activities.



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