Those who had to face laying wiring cannot do without a corrugated pipe, which is necessarily used in such works.
For the manufacture of corrugated pipes, polyvinyl chloride, polypropylene or polyethylene are used. Each of these materials has its own characteristics and properties. Polyvinyl chloride (PVC) – universal material resistant to environmental influence, refractory, durable. It has high heat production, in addition, this is one of the cheapest polymers.
The corrugated PVC pipe is used for hidden cable laying, wiring, television and telephone wires in the walls, floors and ceilings. For external wiring, you can also use corrugated pipes, but not ordinary, but with increased resistance to weather conditions and ultraviolet radiation.
Corrugation provides additional protection and isolation of wire bundles. Thanks to the corrugation, the corrugated PVC becomes very flexible, and the smoothness of the inner layer ensures the convenience of laying the cable, protecting it from grinding or other damage. The corrugation is easy to transport and conveniently store. It is packaged 25, 50 and 100 m. Cellophanized bays.
The material for the manufacture of corrugated pipes is completely environmentally friendly, resistant to fire in case of short circuit, protects against electric shock and is not exposed to corrosion, so you can not worry for safety when using structures in residential premises and industrial facilities. Many solvents, alkali, acids and mineral oils are not terrible for them. In addition, the design of the pipes is such that during installation they freely bend, which provides special ease of use.
There are a light and heavy series of pipes, sometimes with a length with the help of which you can reduce the installation time by about three times. First, the pipe is mounted inside the wall, then the wiring is laid, the ends of the cable and the broach are connected, and the cable is stretched from the other end.
A heavy series of corrugated pipes has a strength of more than 750n per 5cm at 200 ° C., used in concrete fill or cement screed.
The light series of corrugated pipes has a strength of more than 350n per 5 cm.
Hofra installation temperature -from -5 ° C to +60 ° C, operating temperature -from -20 ° C to +60 ° C.
For mounting corrugated pipes, appropriate components are needed: connectors, plastic plugs, connecting boxes, sockets and probes for the cable length. You can purchase all this at the company “Zemlytroy” by contacting our managers.