Sliding contact lines are used to supply power to moving equipment. The quality of sliding contact lines is related to their service life and also affects the normal operation of cranes. Therefore, when selecting sliding contact lines, it is essential to pay attention to the quality provided by the manufacturer. Below, we will tell you how to distinguish the quality of sliding contact lines. Let's take a look together.
1. Thickness of PVC shell. Generally, the shell of sliding contact lines serves to protect the conductor insulation, as well as to provide sun protection, moisture resistance, rain and snow protection, and dust prevention. The thickness of the shell is also a criterion for measuring the quality of sliding contact lines. If the shell is relatively thin, it may be accidentally damaged by human factors, and the safety performance will also be greatly reduced.
2. Conductor cross-sectional area and thickness. Obviously, the larger the conductor cross-sectional area, the better its heat dissipation; the thicker the conductor, the stronger its conductivity. When purchasing sliding contact lines, it is necessary to inspect the conductor cross-sectional area and thickness. Some manufacturers may pass off sliding contact lines with lower current ratings as those with higher current ratings.
3. Quality and source of aluminum alloy conductor material. This factor is also a major determinant of the price of sliding contact lines. Better aluminum alloy conductor material leads to higher prices, and vice versa.
4. Overall appearance design. This may seem to have little effect, but it actually accounts for a certain proportion. The overall appearance design of sliding contact lines should fit most engineering environments, and the design should facilitate protection of the lines, adding highlights from an aesthetic perspective. This can enhance the competitiveness of products in the sliding contact line market. Doing a good job in overall design and improving the quality of sliding contact lines is the way to sustain a long-term presence in the entire market.
5. Regarding the selection of current collectors for sliding contact lines, as a key component for crane power supply, how to choose the current collector is particularly important. The current collector mainly consists of shoe pieces, shoe boxes, springs, collector brackets, and collector support parts. When selecting a current collector, first consider the manufacturer that matches the sliding contact line. Do not use incompatible collectors, as this may affect the normal operation of the crane, and in severe cases, may burn out the sliding contact line.
How to choose sliding contact lines
1. Look at the structural form, such as safe combined sliding contact lines or separated safe sliding contact lines, rigid-based separated sliding contact lines, etc.
2. When selecting, based on the total power of all cranes used, you can calculate the maximum current. Use the magnitude of the current to judge the quality of the sliding line. Sliding lines with larger maximum current are generally better.
3. When selecting, consider the length, total impedance, or material of the sliding line, and make a comprehensive consideration.
