The National Transportation Safety Board said the smoke in the Metro tunnel near L’Enfant Plaza was caused by electrical arcing, which occurs when electricity escapes its prescribed path. Metro ...

Photo 3. Arcing fire occurred in bedroom on the main level of the house. Forensic analysis When arcing occurs in AC circuits, the arc is extinguished every time the current goes through the zero point ...

Power lines arcing in San Rafael News / Mar 14, 2023 / 11:56 AM PDT ...

Arcing happens when stray electrical current from the track’s third rail finds an alternate path to the ground, usually because of dirt, mud or puddled water.

The arcing insulator issues led to trains single-tracking on and off between Forest Glen and Silver Spring. RELATED:MCFRS: No smoke, fire found after Metro report of arcing insulator on Red Line.

What causes arcing at steam fitting? Q We recently installed a new steam pressure reducing station in an existing 6-m. 150-lb steam line. After reinsulation of the pipe with foil-jacketed, 2-in.-thick ...

Electrical arcing 'basically melted' LRT power line after January ice storm The LRT system had withstood more than 50 similar freezing rain events without any problems, a city official said Thursday.

Arcing insulators have been a problem for Metro for years. Metro did a program called Safetrack from 2016 to 2017 to perform major maintenance work in part to prevent arcing insulators from happening.

HUNTING VALLEY, Ohio Fire call-utilities: Fairmount Boulevard A downed power line had to be extinguished after several callers reported “arcing and sparking” in the roadway about 6:45 a.m. Oct. 7.