Cigr� Survey of 380kV to 500kV Overhead Transmission Line Projects Summary Report

The following report details the findings of an ESB International (ESBI) survey
conducted to obtain information on projects relating to electrical infrastructure
within CIGR� member Countries. An email questionnaire was issued to the
members of Working Group B2 06 �Principles of Overhead Line Design� and
also to members of Study Committee B2. The survey requested information
on Overhead Lines in the voltage range 380kV to 500kV that are currently in
planning, construction or commissioned since the year 2000.

Cigre Survey of 380kV to 500kV Overhead Transmission Line Projects.pdf

STUDY ON THE COMPARATIVE MERITS OF OVERHEAD ELECTRICITY TRANSMISSION LINES VERSUS UNDERGROUND CABLES -Confidential-

The objective of this study is to provide an independent view on the relative merits
of constructing and operating OHL compared to UGC. Technical characteristics,
reliability, operation and maintenance factors, environmental impact, possible
health issues and costs are regarded.

6-ECOFYS-Study-Final-report_June2008.pdf