To protect power and communication cables laid in railways, highways, subways, municipal construction, and other system fields, when the cables pass through obstacles such as railways, highways, and rivers, cable protection tubes are generally added to the pipelines. At present, the cable protection tubes on the market generally use N-HAP hot-dip plastic steel pipes. Because they are often used for road cable protection, they are also called hot-dip plastic steel cable protection tubes. With good insulation performance, stable chemical properties, no rust, no aging, and a wide temperature range (-40°C-80°C), N-HAP hot-dipped plastic steel pipes can adapt to various harsh geographical environments. Products such as hot-dip plastic steel pipes can be used for plastic-coated steel pipe protection pipes such as submarine tunnels and cross-sea bridges. Of course, the most important thing when purchasing is to pay attention to the quality of the product, which can be identified as follows:
You can look at the surface first. Generally, the smoothness of the surface is good. If there is no crack, it indicates that the quality is qualified; If there is no shedding phenomenon, it means that its quality is ok. If the coating falls off with a light scrape, it means that the quality of the product is not so good.