Washington Metro makes progress on weather sealing, maintenance projects

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Washington Metro's Red Line
TRAINS: Steve Sweeney
WASHINGTON — Maintenance crews are making progress on sections of the Washington Metro system. Washington Metropolitan Area Transit Authority General Manager and CEO Paul J. Wiedefeld announced an early completion of sealing weather tight seals on all underground third-rail electricity feeder lines. The agency’s top leader says the early completion is the result of an accelerated project timeline designed to return the subway system to consistent, reliable operation.

“This is an important step toward addressing not just the [National Transportation Safety Board] safety recommendation, but toward improving overall safety in the Metrorail system,” says Wiedefeld. “The sealing sleeves help protect the power cables from the intrusion of water and contaminants that may cause electrical damage.”

According to a NTSB investigation, several electrical connections associated with the power supply to the third rail were improperly built and mounted, allowing for the potential for moisture to enter the components. Several hundred of such connections were made throughout the system, prompting the agency to prioritize locations based on the amount of water intrusion conditions, according to the agency.

NEWSWIRETrains News Wire

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