the republic logo

Utility says insulation led to winter explosions that blew off manhole covers in Ohio capital

bug
Share/Save/Bookmark

COLUMBUS, Ohio — American Electric Power says explosions that sent manhole covers flying in downtown Columbus last February happened when insulation material on electricity cables broke down because of water, salt and other factors.

Nobody was injured in the explosions that sent two manhole covers into the air and shattered one.

The Columbus Dispatch (http://bit.ly/1owEgo8 ) reports the utility is spending around $30 million to prevent any similar explosions.

AEP says the cracked insulation exposed metal wires to the air and the high level of electricity running through the cables produced heat. That caused the rubber insulation to burn, releasing a flammable gas.

The utility says the gas built up inside a small vault that holds electricity equipment and the heat and electricity likely led to a spark that caused the explosion.


Information from: The Columbus Dispatch, http://www.dispatch.com

Think your friends should see this? Share it with them!

Story copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Feedback, Corrections and Other Requests: AP welcomes feedback and comments from readers. Send an email to info@ap.org and it will be forwarded to the appropriate editor or reporter.


We also have more stories about:
(click the phrases to see a list)

Category:

Subjects:

Places:

 

Follow The Republic:

All content copyright ©2014 The Republic, a division of Home News Enterprises unless otherwise noted.
All rights reserved. Privacy policy.