The inner tube must be straight and accurate to ensure that no swing occurs when the roller rotates. Make the rotating metal joint move away from the center line of the roller, and the metal hose after installation can be slightly shaken by hand. However, the anti-rotation and supporting points should not be assembled too tightly.in order to avoid scratches on the seal ring and damage to the internal components.

During the operation of the metal joint, there is no need to provide it with lubricant, but try to avoid the rotating metal joint running in a dry state under the condition of no medium, otherwise it will cause excessive wear of the carbon-graphite sealing ring;The metal hose should be directly connected to the rotating metal joint as much as possible, and the pipe accessories should be used as little as possible to prevent the increase in weight and affect the performance of the rotating metal joint.　　

At present, the main types of products that are used more frequently in medium and high voltage cable joints are prefabricated and cold-shrinkable. When we configure the wires, because of the wide radiation area and many branches, the nodes on the line are many and scattered, which is easy to cause the heat of the nodes and cause failures such as power outages. However, according to statistics, cable connector and terminal head failures account for about 70% of the overall cable failures. should be used; the same metal should be completely opened with gauze to clean the oxide on the contact surface, and brass valve supplier then use conductive paste

After smearing, they should be closely connected and waterproof measures should be taken., which causes the cold-shrinkable cable intermediate joint to be repeatedly broken down during operation. First of all, we have to find the cause of the fever: Cable cold-shrinkable joints have been widely adopted by the national urban power distribution network due to their integral prefabricated design, application of various wire diameters, good insulation, and convenient installation. 

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