What is the short circuit of cable tray in use? In fact, the common problem of cable tray in use is short circuit, which may be the internal short circuit of the cable or the burning of the cable. Let's talk about it briefly.
Generally speaking, the cable quality is too low. Jinan cable tray will expand and contract during use. Due to the change of ambient temperature, such as steel cable bridge, it will expand and contract. The function of outdoor bridge is greatly affected by temperature, so it is necessary to pay attention to the temperature change of high-temperature fan during use.
In addition, before the installation of the cable tray, the appropriate span shall be determined according to the structural characteristics of the building, the calculated load, the size and deflection of the tray, which shall not only meet the required load deflection, but also consider the convenience of installation.
The preparation work for bridge installation is to erect scaffold between two abutments and lay ramp as the erection platform of pneumatic ball valve steel bridge. ZL50C loader is used to level the site from the abutments on both sides to the construction road. Draw the site ground wire and indicate the stacking position of all components, fittings and erection tools of the bridge.
Determine the position of rock, roller and seat plate through measurement and setting out. Measure the elevations of bridge centerline piles, rock piles, rolling piles and abutment piles. The bridge centerline pile shall be measured to the nose of the opposite bank as far as possible.
Accessories, erection tools and various mechanical equipment required for bridge erection shall be fully prepared and transported to the construction site by 5T dump truck for partial stacking. The process pipeline can be installed outdoors, but it should be noted that the cable tray should be installed along the flammable, explosive and low-risk side.
In use, it is necessary to find a suitable type of cable tray and use it according to relevant regulations. Different types of cable trays have different application ranges. You should find the right one according to your own needs. Do not blindly choose to use, which will not only not ensure the use effect, but also shorten the service life of the bridge. More related matters come to our website http://www.yeeones.com Consult!