Cable casing, also known as protective tube or conduit, is a pipe used to protect wires and cables in electrical installations, allowing wires and cables to be inserted and replaced. Cable casing is a new type of casing material that is widely used in power engineering.
What are the different types of cable casing pipes?
With the rapid development of underground power cable laying projects, higher requirements are put forward for cable casing. Cable casing is suitable for telecommunications, power engineering, transportation, urban construction and other fields. There are generally two types of casing:
(1) Steel protective tube. Steel protective tubes are divided into thin-walled tubes and thick-walled tubes, and galvanized and non-galvanized.
(2) Plastic tube. Plastic tubes are generally made of polyvinyl chloride plastic or U-PVC. There are ordinary and flame-retardant types. They are cheaper than metal tubes, easy to install, and will not rust. Most wire threading casing tubes are made of plastic tubes. FRP cable conduits are made of high-strength glass fiber as reinforcing material and unsaturated polyester resin as matrix material. They are wound by microcomputer-controlled machinery.
Casing refers to a protective device that fixes cables, pipes, etc. to mechanical equipment or buildings. The material of the casing is generally plastic, metal or rubber, and has the characteristics of waterproof, anti-corrosion, insulation, etc.
Functions and Uses of Cable Casing Pipes
1. Protecting wires and cables
The main function of cable sheaths is to protect wires and cables. It can not only effectively protect wires and cables from the influence of the external environment, but also prevent wires and cables from being damaged and rubbed during transportation and installation, thus extending their service life.
2. Anti-corrosion, waterproof and fireproof
The cable sheath is wrapped with a protective sheath on the outside, which can effectively prevent it from being affected by factors such as moisture and corrosion, and ensure the transmission quality of wires and cables. At the same time, the cable sheath can also effectively prevent accidents such as fire.
3. Increase the mechanical strength of the cable
Adding a protective layer to the cable sheath will increase the mechanical strength of the cable, making it less susceptible to external damage and able to withstand a certain load.
4. Wide range of uses
Cable casing have been widely used in construction, aviation, energy, railways, telecommunications and other fields, such as underground cable lines in construction, airborne cable lines in aviation, cable line joints in the energy and petrochemical fields, and cable lines in railway signals.
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