Optical Fiber Cable Splice closure/joint closure is a junction protection device that provides optical, sealing and mechanical strength continuity between adjacent optical cables. In the optical communication network, due to the limited length of optical cable and the need for branching of optical cable on the transmission line, there are optical cable joints. The optical cable junction box provides conditions for the connection and branching of optical cable and protects the joints. Optical cable junction box, also known as optical cable junction box, optical cable junction package, optical cable junction package and barrel, is mainly used for direct and branch connection of overhead, pipeline, direct burial and other laying methods of various structural optical cables. The box is made of high quality engineering plastics, with high strength, corrosion resistance and aging resistance. It can withstand severe climate change and bad working environment. It is widely used in communication, network system, CATV cable television, optical cable network system and so on.

Service conditions:

Ambient temperature: 40 ° C to + 65 ° C ◊ atmospheric pressure: 70 to 106kpa

Main technical indicators:

Sealing performance: the box is filled with air pressure of 100KPA 5kpa, soaked in normal temperature water and observed for 15min without bubble escaping; or observed for 24h without change of barometer pointer

Mechanical properties: it can bear the axial tensile force of not less than 1000N; it can bear the impact energy of 16N. M for three times

Insulation resistance: the product is packaged according to the specified operation procedure. The insulation resistance between the metal components in the box and between the metal components and the ground shall not be less than 210 ＾ 4m Ω after being immersed in 1.5m deep water for 24h. Voltage resistance: the product is packaged according to the specified operation procedure, and the metal components in the box and between the metal components and the ground shall not be broken down for 1min under the action of 15kV DC without flashover phenomenon after being immersed in 1.5m deep water for 24h.

适用于直埋、管道敷设的光缆线路中直接和分歧接续。