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Electricity Transmission
Project Details
Documents
Ideas for future projects?
Apr 2013
Electricity Transmission
Scheme 20448 Development of a Live Wrap Replacement Techniques for OHLs Using a Modified SCC System
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):
Asset Management
Estimated Expenditure:
£189,000.00
Introduction:
Develop a new technique and associated equipment which will allow National Grid's Overhead Lines (OHL) suppliers to replace fibre optic cable wrapped on the earthwire with an Optical Ground Wire (OPGW) using a live technique (i.e both circuits live). This technique will eliminate the need for installing temporary fibre diversions (needed to keep telecoms services going during the work) and the need for transmission outages as the work can be carried out live. The process will reduce scheme costs, reduce the requirement for optical and transmission outages, enable the work to be carried out in all environments and be less damaging to the environment. Capital works will also benefit because the method will lower the risks which normally have to be mitigated in the larger capital scheme ultimately lowering overall scheme costs.
Objectives:
The project has defined the following objectives:
Replacement of wrapped earthwire without use of temporary bypasses.
System can be deployed without requiring transmission outages (i.e. with the HV circuits live).
Significant reduction in the number of optical outages (reducing risk to customers).
Can be deployed over difficult terrains where there is no method at present.
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/