Pipe and cable laying rules

1 The configuration of the cable conduit pipe, the inside of the wall should be as smooth as possible to avoid the sharp cut of the cable outside the prominence, and make sure the pipe open, and there are steps to put nylon cloth rope.

2 cable channel bends, the pipe diameter fiber optic cable bend radius should be larger than 25 times in 90-degree bends at an additional pull box   (PULL BOX) pull box should be larger than the outer diameter more than 20 times the cable diameter.

3 cable channels change at some time turn, should be closer to the corner start laying between the endpoint, or when a long distance pipeline 1 ~ 2 km, the path should be from the middle to both sides of the endpoint laying.

4 path to the middle point of deployment, the entire line method should be "8" shape the entire disk, remember to not less than the fiber radius 20 times the cable diameter, bending and splicing is absolutely prohibited.

5 manhole, hand hole of the porous pipe is configured, you should choose a relatively large tube configuration.

6 cable in the underground pipe laying, installation of PE exposed part of the winding tube should be protected, it should reach the pipe. Such as manholes and hand holes.

7 of the nozzle pipe sealing material should be handled or plugs to prevent water pipes.

8 person turn a big margin, hand holes, such as a common trench warning signs should be provided for additional cable difference, most people, installing hand holes as needed.

9 After the cable traction to the point, according to the required size, set aside an appropriate length of cable cut off after a pair of scissors. Connector part of the tape tied to water, its length not less than 5cm.

10 Pull cable should be cable tensile side Pull the body directly, or fiber-optic network to send sets of pull, the body according to different tensile fiber optic cable is different, there Kaifo La line, FRP, tensile and physical copper center, hove to send wire or nylon