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b. It is important to avoid areas with severe vibrations, as they can cause damage or misalignment over time. Additionally, try to keep the trolley wire away from heat sources that could affect its performance or lifespan.
c. Ensure that the installation allows for easy access during maintenance. This includes leaving sufficient space around the wire and avoiding locations that are difficult to reach.
(2) Choose an appropriate suspension method for the trolley wire. a. Select the right type and size of suspension bracket based on the specific site conditions, such as available space, load requirements, and environmental factors.
b. The standard spacing between suspension points should be 1200mm, and the maximum distance should not exceed 2000mm. Proper spacing ensures stability and prevents sagging.
(3) Key considerations during the installation of the trolley contact line a. Refer to the installation diagram to identify and mark the positions of key sections like the power supply area and expansion joints. Label each section according to its location for clarity.
b. Begin by installing the first trolley wire, which must be securely hung using a fixed hanger. This serves as a reference point for aligning the rest of the system.
c. When installing the first trolley wire (or conductor bar), ensure that the centerline of the running track is parallel within a tolerance of 1.5mm per 1000mm. The subsequent installations must maintain the straightness and proper power delivery of the first wire. The straightness of the equipment's running track should also not exceed 1.5mm per 1000mm.
d. For DHGJ slip lines, it is essential to ensure proper grounding for each segment to prevent electrical hazards and improve safety.
e. After completing the installation, conduct a full inspection of the entire system. If the first sling (or conductor bar) is not used as a benchmark, consider replacing it with a floating one for better alignment.
f. Inspect the entire line to confirm that the parallelism between the track and the electrical equipment, as well as the straightness of the trolley wire itself, does not exceed 15mm.
h. Finally, perform the electrical commissioning test. Any issues discovered during this phase should be addressed immediately to ensure safe and efficient operation.
By following these steps carefully, you can ensure a reliable and long-lasting trolley wire system that meets all safety and performance standards.
(1) The installation position of the trolley wire should be located as close as possible to the transmission point and installed on the same side as the electrical equipment. This helps reduce signal loss and improves overall system efficiency.