Warning, Possible Electric Condition On Roosevelt Island Sidewalk Next To Riverwalk Building Across From Tram - Con Ed Investigating Contact Voltage Cause Since December 8
Have you noticed the yellow cones with Do Not Enter warning tape attached
on the sidewalk next to Roosevelt Island's 405 Main street Riverwalk building
in Southtown across from the Tram Station
for about the last 2 weeks? The signage says:
Warning, Possible Electrical Condition, Do Not Enter
On December 19, I asked Con Ed:
Do you have any information on Stray Voltage incident at 405 Main Street sidewalk?Con Ed Spokesperson Alan Drury replied:
For about a week a section of the sidewalk has been cordoned off with yellow tape that says Caution, Possible Electric Condition.
We are investigating the cause of the condition you referenced. Once we find the cause, we will see that the condition is eliminated.I followed up:
... We generally use the term “contact voltage,” as opposed to “stray voltage.” Our engineers say each term has a specific meaning and they are two different conditions...
Can you provide any details as to how you determined there was a problem and what is being done to remedy it.Mr. Drury answered:
What is the difference between "stray voltage" and "contact voltage"?...
We have vehicles that scan the service area for contact voltage. We got a hit on this one on Dec. 8. To locate the source, our people are checking underground vaults (such as manholes) for obvious visual inspections. The search also includes the cutting and reconnecting of cables, and examination of the internal electrical equipment of buildings in the area.
... the main difference is that stray voltage is naturally occurring in an electrical delivery system, while contact voltage indicates faults.
As of today, the "possible electric condition" next to 405 Main Street has not been resolved.
More on contact and stray voltage at this Con Ed report.
UPDATE 12/23 -Spotted workers this afternoon
at the site.