E4-2009Fall-STATISTICSofACUndergroundCableinPowerNetworks

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Tutorial STATISTICS OF AC UNDERGROUND CABLE IN POWER NETWORKS Steve Swingler CIGRE WG B1-07 With collaboration of Members of WG B1.07 1 Presentation overview  Background to CIGRE WG B1-07  Technical Brochure 338  Questionnaire  Statistics  Technical differences Overhead v Underground  Relative Costs 2 History Mid 1990s JWG 21/22  Questionnaire sent to utilities 19 countries  Paper to the 1996 Session  Technical Brochure 110 Events since 1996       Weather-related incident
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  1  STATISTICS OF AC UNDERGROUND CABLEIN POWER NETWORKS Steve Swingler CIGRE WG B1-07 Tutorial With collaboration of Members of WG B1.07   2  Presentation overview  Background to CIGRE WG B1-07  Technical Brochure 338  Questionnaire  Statistics  Technical differences Overhead v Underground  Relative Costs  3  History Mid 1990s JWG 21/22  Questionnaire sent to utilities 19 countries  Paper to the 1996 Session  Technical Brochure 110 Events since 1996  Weather-related incidents  Technical changes  Strong competition  Increased urbanisation  Public concerns  Structure of electricity supply  4  WG B1.07: Terms of Reference  Collect statistics for the lengths of underground and OHL   Analyse as function of voltage/power   Submarine and DC circuits excluded  Only include projects up to 2006  Describe significant underground cable projects  Factors to be considered when comparing costs  Non-cost factors that must be taken into account
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