A 230-kv spar arm H-frame transmission line

DURING the past 16 years, the Virginia Electric and Power Company has had in service over 600 circuit miles of 115- and 138-kv wood pole H-frame transmission lines with spar-arm construction. Experience with this construction has been so satisfactory that the new 96-mile 230-kv transmission line between the company's Chesterfield and Possum Point power stations is being built with spar construction for both crossarms and braces. Each end of the line will be tied into the existing 115-kv system through 230/115-kv autotrans-formers and a tap connection will be made at the Lakeside substation north of Richmond.