Talking about the selection of the trolley wire type:
How the user selects the trolley wire, mainly considering: the maximum current during normal operation, the voltage drop of the wire, the environmental conditions and the use price. Nowadays, we introduce to you the introduction of safety wireline in Shanghai Tianyi Electric Slide Line Manufacturers:
1. The voltage drop of the wire ΔU
When the current passes through the wire, it will lose power, causing the voltage to drop. Usually the line voltage drop ΔU<5%. The method to reduce the voltage drop is to change the input mode of the power supply, reduce the transmission length or change the material of the wire. Use more conductive materials.
2. Calculate the maximum load
If more than one driving system is included, the sum of the rated currents of all simultaneously operating equipment shall first be calculated as the calculated current I. I = Σ I1 + I2 + I3 + I4 + I5, but also consider the following factors. The nature of the load is continuous work or temporary work. Because the wire jacket material is polyvinyl chloride. When working under 25 degrees, it can work continuously under the rated current, and the wire will not generate heat. When the ambient temperature is more than 25 degrees, the maximum continuous current will decrease correspondingly. The effect of the duty ratio on the current rating of the trolley wire - the lower the load rate, the lower the heat generation and the longer the scatter timer.
3. Environmental conditions:
Whether there is corrosion in the working environment, if it is necessary to consider the wire material, choose corrosion-resistant materials.
4. Price:
The cheapest is not equal to the most economical wire. Also consider the installation, maintenance, service life and other factors. After comprehensive consideration, determine the appropriate type of trolley wire.
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