Feb 2013
Electricity Distribution
Assessment of Conducrete
Feb 2013
Scottish and Southern Electricity Networks
SSEN Future Networks Team
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Innovation Funding Incentive
High Voltage Technology
The scope of this project is to assess the earthing performance and anti-theft capability of Conducrete in power distribution networks, which will be achieved by carrying out earthing resistivity tests, thermal shock tests and mechanical impact tests.

Traditional earthing methods are susceptible to theft and corrosion and due to certain ground conditions such as shale or rocky ground, effective power system earthing can be difficult. To overcome this challenge, a conductive concrete compound called Conducrete which has a resistivity of approximately four times lower than any other product of this type is to be assessed.

The assessment will be spilt into three parts:

  • The first to assess whether a Conducrete based earthing system is an improvement over traditional methods currently used
  • The second to assess the effects of earth fault current which may flow through an earthing conductor embedded in Conducrete

  • The third is to assess whether Conducrete is mechanically strong enough to protect the earthing conductors from theft.

The objective of the project is two fold, firstly to establish whether a Conducrete earthing system is more effective than other systems using:

  • Bare earth rods
  • Earth rods encased in traditional Marconite.