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The Boston Globe


NStar faces scrutiny over power outages

When the lights went out across large swaths of Cambridge just as Thursday’s workday ended, it was the latest in a string of outages caused by NStar equipment failures this year, renewing questions about the Boston utility’s ability to keep the power on.

The outage only lasted two hours after a piece of equipment called a relay erroneously cut power to a transmission line, but it knocked out electricity at Harvard University and MIT, left traffic and street lights dark during rush hour, and played havoc with Red Line trains packed with commuters. Roughly 19,000 customers were affected.

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