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NEWS

Precautions for using fiberglass cable protection trays

Release time：

2025-06-16 11:06:32

[Summary Description] Cable trays should have measures to prevent cable scratches, such as various bends, tees, and tees, which should be of circular arc shape. When leading cables down, a lead down device should be used. When cable trays enter indoors from outdoors (such as substations), they should be sealed using fire-resistant materials, sand seals, etc. At the same time, the fiberglass bridge should be inclined towards the outside, generally with a slope of 1%, to prevent rainwater from pouring in.

[Summary Description] Cable trays should have measures to prevent cable scratches, such as various bends, tees, and tees, which should be of circular arc shape. When leading cables down, a lead down device should be used. When cable trays enter indoors from outdoors (such as substations), they should be sealed using fire-resistant materials, sand seals, etc. At the same time, the fiberglass bridge should be inclined towards the outside, generally with a slope of 1%, to prevent rainwater from pouring in. The cable tray has high mechanical strength. It has both the rigidity of metal tray and the toughness of glass fiber reinforced plastic tray. It has good corrosion resistance, strong aging resistance, beautiful appearance, convenient installation and long service life. Epoxy resin and epoxy resin composite cable trays are suitable for use in highly corrosive environments.


Cable trays should have measures to prevent cable scratches, such as various bends, tees, tees, etc., which should be of circular arc shape, and cable pulling devices should be used when pulling down cables. When cable trays enter indoors from outdoors (such as substations), they should be sealed using fire-resistant materials, sand seals, etc. At the same time, the fiberglass bridge should be inclined towards the outside, generally with a slope of 1%, to prevent rainwater from pouring in. The cable tray has high mechanical strength. It has both the rigidity of metal tray and the toughness of glass fiber reinforced plastic tray. It has good corrosion resistance, strong aging resistance, beautiful appearance, convenient installation and long service life. Epoxy resin and epoxy resin composite cable trays are suitable for use in highly corrosive environments, large spans, and heavy load conditions.


The fiberglass bridge adopts advanced fiberglass pultrusion technology both domestically and internationally, with mechanized continuous production. Therefore, it not only has the advantages of domestically produced bridge frames, but also has stable product dimensions that can be freely selected. The length can exceed 8 meters, with higher strength, stiffness, and corrosion resistance. Nantong Ruichi New Materials Co., Ltd. is a technology innovation enterprise engaged in research, development, design, production, and installation of fiberglass reinforced plastic. Cable trays and fiberglass cable trays are one of its products.


Since the founding of the People's Republic of China many years ago, our country has always adhered to the two major policies of reform and opening up and technological innovation, and has achieved significant results in recent years. Even in this 21st century, we will not give up and will persist until the end.


The installation of cable trays mainly includes several types: installation along the top plate, horizontal and vertical installation along the wall, installation along the vertical shaft, installation along the ground, installation of fiberglass bridge frames along cable trenches and pipeline supports, etc. The support (hanger) used for installation can be selected from finished products or self-made. The main ways to fix the support (suspension) frame include welding on pre embedded iron parts and fixing with expansion bolts. Wherever there are cables, there are cable trays. Bridge is widely used in all walks of life, most of which are used in data centers, offices, Internet service providers, hospitals, schools/universities, airports and factories, especially in the data center and IT machine room markets. The market for fiberglass bridge frames reached 100 billion yuan in 2010 and is expected to grow at a rate of around 20% annually after 2011. In 2010, the national standard for cable trays was introduced, which specifies the definition, model code, requirements, testing methods, inspection rules, marking, transportation, and storage of cable trays for electrical control and distribution. This standard is applicable to cable trays for indoor and outdoor, high and low voltage transmission and distribution projects in industrial and civil buildings. The introduction of this standard has further standardized the fiberglass bridge industry. Good standards are also a new manifestation of standardized products.