How to maintain and maintain the trolley wire

How to maintain and maintain the trolley wire:

In order to ensure the normal operation of the trolley line and prolong its service life, after the trolley line is put into operation, it should be regularly inspected. Today, we are talking about how to maintain and maintain the trolley wire line.

1. Current collectors: Check at least once every quarter. Check the fasteners for looseness, displacement and wear of plastic parts and moving parts, check the spring tension (the contact pressure between the collector brushes and the guide rails should maintain a certain pressure (see the table below). Find problems and deal with them in time.

2. Connector: Check it at least once a year. Focus on checking whether the fastening bolts, welds, and supports are loose, rusted, or displaced. If any problems are found, handle them in time.

3. Brush: Check once every 1-3 months according to the use of mobile electrical equipment. Focus on checking the wear of the collector brush. If the wear amount is 5mm, it must be replaced. If the brush is found to be loose or if the wear deflection occurs during the inspection, the cause should be ascertained and dealt with promptly.

4. Daily inspection: Check whether the straightness of the track has obvious deviation (greater than 20mm), misalignment, whether the insulation protection parts are detached, broken or damaged, whether the stainless steel “v” groove is tilted, and whether there is any foreign matter on the track. And conductive dust and so on. If necessary, check whether the insulation resistance meets the requirements (interphase insulation resistance should be ≥ 5MΩ). In particular, it is necessary to strengthen day-to-day inspections and maintenance for vehicles with large deviations in track alignment, track distance, and inclination, frequent use, excessive dust in workshops, high temperatures, and water, acid, alkali, fog, and outdoor use environments.