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Electricity Transmission
Project Details
Documents
Ideas for future projects?
Apr 2013
Electricity Transmission
Recovery of Cable Core
Reference:
Status:
Live
Start Date:
Apr 2013
End Date:
Unknown
Funding Licencee(s):
National Grid Electricity System Operator
Contact:
National Grid TO Innovation Team
Click here to send a question to the contact.
Funding Mechanism
Innovation Funding Incentive
Research Area:
None
Core Technology(ies):
Gas Transmission Networks
Estimated Expenditure:
£138,000.00
Introduction:
Current best practice for decommissioning oil filled lead sheathed cables is to remove as much oil from the cable as possible and then leave the cables in the ground or alternatively excavate the cable route to extract the cable (although this is costly). The proposal is to pump biological agents into the out of service cable that would degrade the oil impregnated insulation sufficiently to allow the cable core to be extracted from the cable at joint positions. This would reduce the environmental risk of the cable system, allow recovery of valuable materials reducing waste and allow recovery of the cost of the material (generally copper) and leave a conduit for future use.
Objectives:
Development of a technique to remove the core of an oil filled cable while the cable is still buried in the ground. This will allow the copper conductor to be recovered and leave an unfilled duct that can be re-used.
Related Links
National Grid Innovation Page on Jul 17, 2013
http://www.nationalgrid.com/corporate/About+us/innovation
National Grid Innovation Funding Incentive and Annual Report(s) on Apr 08, 2013
http://www.nationalgrid.com/uk/Electricity/Info/IFI/