SCE underground 500 kV

SCE Puts 500-kV Underground

A first-of-its-kind installation in North America uses cross-linked polyethylene cable for a segment of the Tehachapi Renewable Transmission Project.

Undergrounding cross-linked polyethylene (XLPE) transmission cables has long been one of the routing alternatives utilities investigate when siting new high-voltage transmission lines for regulatory approval. However, cost and feasibility constraints have tended to override the benefits of undergrounding on these types of projects within the U.S. — until now.

The Southern California Edison (SCE) Tehachapi Renewable Transmission Pr

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