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(1) The installation position of the trolley wire should be located close to the power transmission area and mounted on the same side as the electrical equipment. This ensures efficient power delivery and minimizes signal loss.
b. It is essential to avoid areas with strong vibrations and high-temperature zones, as these conditions can damage the trolley wire and reduce its lifespan.
c. The design should also consider ease of maintenance, ensuring that future inspections and repairs are straightforward and accessible.
(2) Choose an appropriate suspension method for the trolley wire.
a. Select the right type and size of suspension brackets based on the site conditions, such as available space and structural support.
b. The standard spacing between suspensions should be 1200mm, with a maximum allowable distance of 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 key sections like the power supply and expansion areas, and label them according to their location for clarity.
b. Begin by installing the first trolley wire, which must be secured with a fixed hanger to serve as a reference point for alignment.
c. When installing the first trolley wire (also known as the conductor), ensure the centerline of the running track is parallel and does not deviate by more than 1.5mm per 1000mm. Subsequent installations must maintain this straightness and ensure consistent power transfer. The overall straightness of the equipment’s running track should also not exceed 1.5mm per 1000mm.
d. For the DHGJ slip line, proper grounding is critical. Ensure that each section is effectively grounded to prevent electrical hazards and improve performance.
e. After completing the installation, perform a full inspection of the entire system. If the first installed sling is not used as a reference, it may need to be replaced with a floating one to ensure accuracy.
f. Check the entire line for alignment, ensuring that the parallelism between the track and the electrical equipment, as well as the straightness of the trolley wire itself, do not exceed 15mm.
g. Finally, conduct a full commissioning test and address any issues immediately to ensure safe and reliable operation.
By following these steps carefully, you can ensure a smooth and long-lasting installation of the trolley wire system, minimizing downtime and maximizing efficiency.