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High Power Transmission Line Cable Inspection

Objective

There are many thousands of miles of high power line transmission cables dispersed around Europe. Some are installed in remote areas where it’s difficult to serve. Furthermore, line cables operate in severe conditions. The cables are subject to many environmental and operation factors such as moisture, voltage stress, omitting jacking and structural imperfections.
These factors are the main reasons for inducing defect within the cable structure. A common type of defect that has been identified as water trees, which are the resultant of elevated voltage stress combined with the moisture ingress into the cable structure. Hence, there is a need for Non-Destructive Testing (NDT) inspection technique that can detect common types of defects.
The most widely used NDT techniques to detect defects in cables are visual inspection and helicopter missions. Visual inspection done by experienced teams of personal on foot, this usually takes a lot of time and effort and in some situations it is impossible to conduct due to the lack of accessibility.
The helicopter missions can be used in such situation; however, it’s a very costly, tedious and difficult task, especially for the pilot since the helicopter needs to fly at minimum distance to the power lines. The possibility of strong side winds additionally turns this task into a dangerous situation.
It is proposed to use Long Range Ultrasonic Testing (LRUT) as an NDT technique. LRUT can be used to inspect for defects/corrosion for many metres (up to 300m) from limited points of access. This technique will be used to identify the presence and the location of the defect (including areas where accessibility is an issue). This development will have a significant positive impact on the power industry as it enables just-in-time maintenance, reduction in the operation and maintenance costs, improving safety by reducing or eliminating helicopter line inspection and improve the quality of visual inspection practices commonly used today.

Field of science

  • /engineering and technology/mechanical engineering/vehicle engineering/aerospace engineering/aircraft/rotorcraft

Call for proposal

FP7-SME-2012
See other projects for this call

Funding Scheme

BSG-SME - Research for SMEs

Coordinator

ROBOTNIK AUTOMATION SLL
Address
Carrer De Barcelona, 3-A. P.i. Fuente Del Jarro
46988 Paterna
Spain
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EU contribution
€ 221 081
Administrative Contact
Rafael Lopez (Mr.)

Participants (6)

DASEL SL
Spain
EU contribution
€ 187 786
Address
Cl Doctor Esquerdo 39
28028 Madrid
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Roberto Giacchetta (Mr.)
DTK ELECTRONICS OOD
Bulgaria
EU contribution
€ 200 673
Address
Tzarigradsko Shosse Blvd 133 Et 2 Of 205
BG-1784 Sofia
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Apostol Apostolov (Mr.)
ALBATROZ - ENGENHARIA, INVESTIGACAO, DESENVOLVIMENTO E INOVACAO SA
Portugal
EU contribution
€ 187 388,99
Address
Rua Da Senhora Do Monte 32 / 6
1170 361 Lisboa
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Joao Gomes Mota (Mr.)
TWI LIMITED
United Kingdom
EU contribution
€ 50 825,01
Address
Granta Park Great Abington
CB21 6AL Cambridge
Activity type
Research Organisations
Administrative Contact
David Hamper (Mr.)
INNORA PROIGMENA TECHNOLOGIKA SYSTIMATA KAI YPIRESIES AE
Greece
EU contribution
€ 29 624
Address
Ioannoy Metaxa 59
19400 Koropi Attikis
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Xenia Bania (Mrs.)
BRUNEL UNIVERSITY LONDON
United Kingdom
EU contribution
€ 46 622
Address
Kingston Lane
UB8 3PH Uxbridge
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Teresa Waller (Ms.)