Use and daily maintenance of contact wire

The whole length of the contact line along the horizontal and vertical plane shall not exceed 10mm, the error between the layout of the contact line and the center line, and the distance error between the contact line and the contact line shall not exceed 10mm. Sliding contact line position, the test process location decision power supply to the layout of the flat copper sliding contact line (wires) the whole range is piecewise, each separated by insulating material between the physical into electricity and power (the test section), the current area is divided into low rev area (power supply voltage 187 v, hotspots and the refrigeration area (sliding contact line voltage is 220 v flat copper wire the entire range is segmented.

The environmental temperature of the sliding contact line device is difficult to predict as a design, and there are no clear provisions on the production of the sliding contact line, parallelism and levelness of the device in the construction acceptance code of the national code. When the number of expansion joints is not set enough in the specific environment of aluminum electrolysis, the power failure of the whole line of the sliding contact line may occur due to maintenance or accidents during operation.

In order to ensure the normal operation of the contact line and extend its service life, the contact line should be regularly repaired after it is put into operation.

1. Electric brush: check every 1-3 months according to the usage of mobile electrical equipment. Focus on the inspection of collector brush wear, if the amount of wear 25o.Must be replaced. Check if the brush loose or wear deviation, should be found out the cause, timely treatment.

2, collector: at least quarterly inspection. Focus on checking whether the fastener is loose, shifted and the wear of the plastic parts and movable parts. Check the spring tension (the contact pressure between the collector brush and guide rail should maintain a certain pressure (see the table below). Solve problems as soon as they are found.

3. Connectors: inspect at least once a year. Focus on the inspection of fastening bolts, weld and support whether loose, rust, shift, found problems, timely place richard.

4. Routine inspection: focus on checking whether there is any obvious deviation (greater than 20mm) in the flatness of the track, dislocation, whether the insulation protection parts fall off, break or damage, no, whether the rust steel "" groove is warped; There is no foreign matter and conductive dust on the track. If necessary, the insulation resistance should be tested to meet the requirements (phase insulation resistance should be equal to 5M52). In particular, it is necessary to strengthen daily inspection and maintenance for the running track overlap degree, track gauge and inclination deviation, frequent use, excessive dust in the workshop, high temperature, water, acid, alkali, fog and outdoor environment.