How to install single-pole trolley wire
Single-pole trolley wire installation is undoubtedly a key issue. How is the single-pole trolley wire installed? What should be paid attention to during installation?
Installation steps for single-pole trolley wire
1) Install the trolley wire bracket. Use welding or expansion bolts to install the angle steel bracket on the track beam at specified intervals. The installation of the bracket is the key to the quality of the trolley wire installation and an important part to ensure the flatness and usability of the trolley wire. It must be ensured that the bracket is flat along the entire line, the extension dimensions of the angle steel are consistent, and the angle steel should be parallel without tilting. The plane of the angle steel with long rectangular holes should be in a horizontal plane, and the factory holes should be in a line. Generally, a steel wire can be used for leveling and alignment. The spacing between two brackets for light trolley wire is <1.5m
2. Install the hanging bracket on the angle steel bracket. Do not tighten the nuts at this time; tighten them after the trolley wire is installed and adjusted. Install the joint protective sleeve of the trolley wire. Insert the trolley wire into the bayonet of the hanging bracket and lock it (the hanging clip for heavy wire has been installed on the conductor). After the trolley wire is installed, level it and tighten the nuts of the hanging bracket. Install the joint into the other end of the first group of wires, and install the second group of trolley wire in the same way. Use the joint to connect the two trolley wires, install the joint protective sleeve, level the single-pole trolley wire, and tighten it. Install all trolley wires in this way. Note that the joint should be smooth, with a gap <0.5mm.
3. Install the power input section.
Install the power input section according to the designed power supply method. Be sure to tighten it, then install the protective cover and the fixing clip for the protective sleeve. Install the fixing clips according to the design scheme, with two clips per line and end protective sleeves. Install end sleeves at both ends of the trolley wire, or they can be installed before hanging.
Check. After the entire trolley wire is installed, it should be carefully checked. The trolley wire should be straight, the spacing should be consistent, and the trolley wire should be parallel to the crane track, with a deviation ≤5mm. The suspension should be tightened, and the joints should be smooth.
4. Install the single-pole current collector and its bracket. After the trolley wire is installed, the current collector can be installed.
The distance from the centerline of the current collector bracket to the lower flat surface of the lower protective sleeve of the trolley wire must be H=155mm, that is, when the contact shoe of the current collector is placed into the ^-shaped groove of the trolley wire, the connecting rod of the current collector must be horizontal. The M seat must be installed horizontally and parallel to the trolley wire. The tip of the ^-shaped groove of the trolley wire must be in the same vertical plane as the vertical centerline of the current collector.
Connect the cable of the current collector to the cable of the electrical equipment. Note that before wiring, the insulation requirements of the motor should be checked according to conventional methods. If any abnormality is found, repair or replace it.
5. Connect the power supply. Firmly connect the power cord to the power input section, paying attention to pressing it tightly.
Test run. First, conduct a no-load test run, moving back and forth several times. If there is no abnormality, stop immediately, cut off the power, check, and troubleshoot.
