The power went out around noon Friday at P.S. 138 in Brooklyn and surrounding areas, ConEd said.
The voltage was found on 74th Street near 37th Avenue.
Claim comes after news report found hundreds of Con Ed workers without up-to-date qualifications.
Service on the 2 and 5 lines between 149th Street and 180th Street partially resumed Tuesday afternoon.
Con Edison is giving out free devices to control air conditioning remotely and monitor energy use.
The MTA's independent consultant cited " significant schedule risks" in the long-in-the-works project.
The a $7.9 million Greening Western Queens initiative will wrap up soon after three years.
State Sen. Bill Perkins and Assemblymen Robert Rodriguez said more can be done stop another explosion.
A water main broke at a construction site at Hudson and Leonard streets, the FDNY said.
Oscar Hernandez, 15, was pulled from the rubble after two East Harlem buildings exploded in March.
The dead included a mom and her chef daughter, a musician, a dental assistant, and CUNY guard.
Tests shows an unusually high concentraion of natural gas in the soil in and around the explosion site.
Con Ed's John McAvoy said the call minutes before the blast didn't "indicate urgency."
The planned East 14th Street storefront has been delayed by gas line issues.
The water covered Jackson and Leonard Streets about 9:10 a.m. Tuesday.
Get our daily New York City news and alerts!
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.