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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