Large span bridge frame (single-sided board, double-sided board):

The standard length of cable tray units, as per our G standard, is set at 2 meters per standard section. It is a reasonable standard that has been determined by combining various factors such as material size standards, measurement, transportation, installation, etc. since the introduction of cable trays into G, and is suitable for most engineering applications. However, in certain situations, due to specific requirements, it is often desirable to extend the standard section: this is commonly seen in chemical pipe racks, large factories, and factory road corridors. This type of bridge with special requirements is called large-span bridge in the industry. According to the principles of mechanics, the larger the span, the smaller the allowable safe working load (SWL). Therefore, if a cable tray with the same load needs to be extended to a standard length of 2M, its manufacturing method cannot refer to the standards of general steel cable trays, but must be tailored by the manufacturer based on the technical conditions of the load per meter and the actual span, and cannot be changed arbitrarily.

Summarizing the general rules regarding span and load, a series of large-span cable trays with a length of 6 meters (including 6 meters) and a competitiveness of 0.6 meters, and a uniformly distributed load of 150 kilograms per meter, have been formed and subjected to rigorous calculations and strict type tests.

     Yunnan Youtong Electric Co., Ltd. is a professional manufacturer of bus ducts and cable trays, with high cost-effectiveness. Crafted with ingenuity, it is durable, with complete specifications and low prices. If you need it, please feel free to call us for consultation!