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Altogether32, Every page shows：18article
Installation Key Points When laying cable trays, it is usually necessary to reserve space for wall openings. In addition, the metal wires placed on the cable trays shall be routed in accordance with the architectural design.
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Channel & Steel Ladder Cable Trays: Applications & Advantages Channel Cable Trays Channel cable trays are widely used in various construction industries due to their simple structure, excellent protective performance, and good load-bearing capacity, making them a popular choice in the cable management sector. They are generally suitable for laying data control cables, communication signal cables, and similar wiring.
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Selection & Application of Ladder Cable Trays When selecting the model and specification, attention should be paid to whether all parts of the cable tray meet the requirements of generalization, serialization, and standardization. Ladder cable trays in buildings can be installed independently or attached to various building structures and pipe gallery supports.
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The route of the cable tray shall be determined based on the building layout, arrangement of air conditioning ducts and electrical conduits, maintenance accessibility, and cable line density. Internally, it should be routed along the building’s walls, columns, beams, or floor slabs as much as possible. If installed in a common tunnel, it shall be erected parallel to one side or above the pipelines. Consideration shall be given to down conductors and branch lines to avoid crossings whenever possi...
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Hot-Dip Galvanizing & Electro-Galvanizing for Cable Trays Hot-Dip Galvanizing (HDG) Zinc exhibits excellent corrosion resistance under atmospheric conditions. Galvanizing is a cathodic protection method for polar metals, where zinc acts as a sacrificial anode. Its corrosion resistance lifespan depends on the zinc coating thickness and corrosion rate. The zinc layer thickness of hot-dip galvanizing is generally above 65 μm (455 g/m²). A zinc-iron alloy layer forms at the interface between zinc...
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Cable Tray Arrangement & Installation Specifications Cable trays shall be arranged from top to bottom as follows: Computer Cable Trays, Shielded Cable Trays, Master Control Cable Trays, Low-Voltage Power & Lighting Cable Trays, and High-Voltage Cable Trays. If two cables of different purposes need to be placed in the same tray, an intermediate partition shall be installed to separate them, and the tray shall be covered with a plate.
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Material Selection for Cable Tray Systems in Corrosive or Outdoor Environments When designing cable tray systems for corrosive or outdoor environments, material selection is a critical decision. Hot-dip galvanized (HDG) cable trays have been successfully used for many years. However, aluminum is increasingly becoming the preferred material for cable tray systems. In today’s era of shrinking construction budgets, why do engineers, contractors, and end-users choose aluminum cable trays—even thoug...
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How to Select and Choose Hot-Dip Galvanized Cable Trays - Dexian Metal Products When cable trays, trunking, and their supports/hangers are used in corrosive environments, they shall be manufactured from corrosion-resistant rigid materials or undergo anti-corrosion treatment. The anti-corrosion method must meet the requirements of the project environment and durability. For locations requiring high corrosion resistance or cleanliness, aluminum alloy cable trays are recommended.
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Basic Materials & Anti-Corrosion of Cable Trays The basic construction material of cable trays is metal. However, when directly exposed to the natural environment without any protective layer, the metal is prone to reacting with water and air in nature, leading to corrosion that impairs the overall structural integrity of the tray. There are two common types of cable trays with protective layers: hot-dip galvanized cable trays and electro-galvanized cable trays.
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Hot-Dip Galvanized Cable Trays: Features & Design The cable tray features a simple design, allowing staff to easily access the top for convenient circuit maintenance and inspection. It simplifies cable installation—cables can be securely fixed just by placing them in the designated positions of the tray.
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Sandblasting is superior to grinding for the surface of aluminum alloy cable trays. The surface wire drawing process addresses these three issues. Unfinished aluminum (in its natural color) should be used as the semi-finished product. These three methods are generally not recommended for treating the surface of aluminum alloy cable trays. Milling, polishing, and polishing fluids are unsuitable for aluminum alloy cable trays. The natural color of aluminum alloy cable trays is not ideal, and the...
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Introduction to Aluminum Alloy Cable Trays Aluminum alloy cable trays are heavy-duty steel components. To adapt to various natural environments and ensure a long service life, extensive work can be done on the surface treatment of aluminum alloy cable trays. Cable tray supports include vertical poles, support arms, or continuous supports, along with frame spacing, installation methods, specifications, and design elevations. Regarding cable outlet points and routing methods, aluminum alloy cable...
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Daily Maintenance Regular Maintenance: Generally, maintenance can be performed once a quarter. After wiping off dust and marks on the surface with a soft cloth, evenly apply a special polishing wax to the surface. After a while, buff it to a shine with a clean soft cloth to prevent moisture damage. For hardware accessories and metal handles, wipe them with a small amount of machine oil and let them dry to ensure smooth operation, rust resistance, and oxidation resistance.
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Select the appropriate load level. When estimating cable weight, include the weight of the reserved margin; temporary additional concentrated loads during construction and maintenance, or other special loads to be considered (such as wind loads and snow loads) shall be calculated based on appropriate load combinations.
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As mechanical equipment used in power supply systems to secure cables, cable trays have been widely applied. When designing and selecting cable trays, full consideration must be given to heat dissipation, while also preventing cables from moisture, high-temperature exposure, and ensuring strong impact resistance. However, conventional cable tray designs fail to adequately emphasize these critical performance aspects.
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After the cable tray is processed and formed, its cross-sectional shape is uniform, free from defects such as bending, distortion, cracks, and irregular edge margins. Regardless of the type of fireproof cable tray, it must comply with the national standards for cable trays.
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The maintenance of cable trays can be divided into cleaning and upkeep. As cable trays are installed for long periods, a significant amount of dust and other debris will inevitably accumulate on the trough surfaces.
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Indoor installation should be arranged along the building's walls, columns, beams, or floors as much as possible. If installed in a public tunnel, the tray shall be erected in parallel on one side or above the pipelines. Meanwhile, consider arranging down conductors and branch lines to avoid crossings as much as possible. If no other pipeline supports are available for use, separate pillars (supports) need to be installed.
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