Trains services were affected between Virar and Borivali on Wednesday for more than two hours due to technical failures.
The catenary clip holding the two overhead equipment (OHE) wires that connects the pantograph supplying power to the train was damaged. "This was an exceptional failure which has not occurred during this year. There was a breakage in the portion of a clip connecting the OHE wires," said a senior official on condition of anonymity.
The incident occurred at 1.30 pm between Dahisar and Mira Road when the train was running towards Virar.
This incident coupled with heavy rains resulted in services moving late by 15 minutes till evening as five trains had to be cancelled.
The officials had to shut down the power before joining the clip of the OHE wires. "We have asked for an inquiry to look into the problem," said G. Pillai, Divisional Railway Manager, WR.
It took them two hours to rectify the problem and train services resumed at 3.25 pm.
On Tuesday too there was a technical problem with the overhead equipment, when the pantograph between Nallasopara and Virar supplying power to trains was damaged. Services were affected in the morning hours from 8.15 am to 10.15 am due to repair work. This led to delay in services by 15 minutes running on slow line towards Churchgate.
On Wednesday, an engine derailed inside the yard at Dadar. This hit suburban services on platform 1.
"Few trains were diverted on platform 2 adjacent to platform 1. However there wasn't any affect in the train services," said S. Mudgerikar, chief public relations officer, CR.