Replacing a damaged high-voltage switch at the Kingston TVA substation will require interruption of electrical service in sections of Roane County overnight Thursday. Areas affected will include nearly 5,000 customers in North Kentucky Street and Highway 58 South in Kingston, Ridge Trail Road, Center Farms, Brentwood, Paint Rock Ferry Road, James Ferry Road and portions of Highway 70 in the vicinity of the substation. Other sections may also be affected by the outage, which is expected to last from 11 p.m. Eastern time tonight until 5 a.m. Eastern time Friday, March 23. Rockwood Electric will be able to back feed some customers in the Kingston area from its Buck Creek and Rockwood primary substations. TVA apologizes for any inconvenience this outage may cause.