There are several aspects of environmental factors that need to be paid attention to when using the sliding contact line.

Sliding contact wire is a new type of power supply system that feeds mobile machinery and equipment. The conductor is an aluminum alloy profile. The outer sheath is made of polyvinyl chloride, which plays a safe role in preventing rain, dust, snow, and electric shock. The device is composed of three main components: sheath, conductor, receiver, and some auxiliary components. As a power supply equipment, the sliding contact line has very high quality requirements. It has experienced a variety of environmental conditions, has good insulation performance, does not cause any damage to the maintenance personnel when it touches the outside of the power transmission conduit, and it is also very easy to assemble, disassemble, adjust and maintain.

The sliding contact line should be inspected regularly during normal operation, because electrical equipment is the main production tool of each industrial and mining enterprise. A slight error will directly affect the production efficiency of the factory. During the inspection, check whether there is looseness or disengagement at a joint every 6 meters. When inspecting the conductor, check whether the moving part can rotate flexibly, whether the tension spring is fatigued, and the brush is worn. And the tracking performance of the conductor should be adjusted in time).

In the power supply industry, when the power supply distance of the equipment is relatively long, the power supply carrier will generate electrical losses due to its own materials and related external factors. This is also known as voltage drop. In actual life, the voltage drop does have a great impact. The same is true for the sliding contact line in the power supply of mobile equipment in the workshop. The aluminum conductor and copper conductor also generate a voltage drop. The common point of voltage drop is that the current loss in different transmission media causes the power supply current to be lower than the actual current of the transmission medium. If the mobile device runs for a long distance, resulting in an excessive voltage drop, it will generate a low-voltage operating state for the required electric drive, which will damage the device for a long time. Therefore, under certain conditions, the sliding contact wire needs to consider the voltage drop.

The sliding contact wire is suitable for the harsh environment of high temperature, high dust and high corrosive gas, but the following environmental factors must be considered when using:

1. Ambient air temperature:

Normal use temperature is -5 ° C ~ 40 ° C, outdoor type normal use temperature is -25 ° C ~ 40 ° C, and the average temperature difference of the sliding contact wire within 24 hours must not exceed 35 ° C.

2. Atmospheric conditions:

Atmospheric relative humidity does not exceed 50% when the ambient air temperature is 40 ° C. Sliding the contact line at a lower ambient temperature can have a higher relative humidity. When the outdoor temperature is 25 ° C, the relative humidity can be as high as 100% in a short time.

3. Altitude:

The altitude of the place where the sliding contact line is used should not exceed 2000m.

Note: For altitudes above 2000m, it is necessary to take into account the air cooling effect and the decrease in dielectric strength. For sliding contact wires operating under the above conditions, they should be designed or used according to the agreement between the manufacturer and the user.

4. Pollution level of the environment:

Not lower than level 3, outdoor type should not be lower than level 4.