1、 The need of the electronic tube of the concealed sleeve of the home electric wire needs to be selected according to different needs, whether it is PVC, galvanized pipe or iron pipe, it needs to be selected according to the needs.
2、 At present, the installation circuit in our country is buried in a concealed way. The protective layer of the wire product itself is not enough to protect the internal core wire. The common way is to put the wire in the pipe and put it into the electric slot. Therefore, the circuit transformation also needs to prepare threaded pipe and other supporting protective materials for use in installation.
3、 The wire cannot be laid directly on the wall. It must be protected with wire protection tube, except for the convenience of maintenance. According to the performance, use in different occasions, and so on, there are several screwed pipes that are often used at home:
1. Plastic threaded pipe plastic threaded pipe, because of the advantages of cheap price, convenient construction and no rust, uses more common circuit conversion at home. The common plastic pipe is PVC pipe, its main component is PVC, in addition to adding other components to enhance its heat resistance, toughness, ductility and so on. When selecting PVC threaded pipe, check the quality of the pipe to ensure that the protective pipe will not bend, flatten or crack after being impacted. First, check whether there are factory signs and flame retardant signs on the outer wall of the pipeline. In addition, the pipe can be ignited by fire first, and then evacuated from the fire source to see whether it will extinguish itself within 30 seconds; thirdly, try to bend the pipe 90 degrees to see whether the appearance after bending is smooth; fourthly, hammer can make the pipe deformed without cracks, so the impact test is qualified.
2. Metal wire pipe (iron pipe, galvanized steel pipe) can be used for protecting metal wire pipe (metal wire pipe) in addition to flame-retardant plastic pipe sleeve protection wire at home. For example, the power line of some residential buildings is protected by fire-retardant plastic pipe, while the telephone and cable TV are protected by galvanized metal thin-walled pipe (which can play a shielding role). Jumpers are not required in the metal protective tubes of telephone and cable TV transmission lines, because the galvanized tube can meet the shielding requirements through wire port or sleeve connection. Common metal pipe is galvanized steel pipe, heat-resistant and fire-resistant. Metal wire pipe and galvanized wire pipe are only suitable for high-rise buildings. Although they are expensive, they are not easy to bend and deform. When selecting metal pipes, pay attention that the pipes should not be flat, there should be no burr in the pipes, the outer diameter and wall thickness of the steel pipes should meet the relevant national standards. If the steel pipes have rotten teeth or brittle fracture, it indicates that the quality of the steel pipes does not meet the requirements.
The above is the relevant content introduced by Jinan galvanized pipe manufacturer. If you want to know more, please visit the website: http://www.jnxxjm.com