Original sentence: When the line was electrified, there was extreme pressure from the Department for Transport (as proxy for the taxpayer) to reduce avoidable costs, and the overhead line equipment (the traction supply to the trains, usually referred to as "the OLE") was constructed with an unusually wide spacing of support masts leaving the OLE vulnerable to disruption in the event of high winds
Edited sentence: When the line was electrified, there was extreme pressure from the Department for Transport (as proxy for the taxpayer) to reduce avoidable costs, and the overhead line equipment (the power supply to the trains, usually referred to as "the OLE") was constructed with an unusually wide spacing of support masts leaving the OLE vulnerable to disruption in the event of high winds