Special equipment box must be equipped with a locking door, should be done without opening the door can not do any operation on the product. Special equipment box related parts should be in line with their respective technical requirements; spraying, plating and other surface processes should be firm, flat, no flaking rust and cracks and other phenomena; surface spraying outdoor powder (polyurethane); equipment box panels should be flat and proportional; signs, logos, markings should be intact and clear, requiring the box to be sprayed with China Telecom LOGO logo logo, text and symbols require clear, neat, beautiful and correct; box steel plate Thickness of the box steel plate is 1.2mm; reinforced installation method: wall mounted. The accessories in the box are provided by the box manufacturer, including: thermostat, fan, power plug, air switch grounding copper rows, layer racks and so on. Special equipment box should be ventilated, heat dissipation design, the box temperature is required to control the temperature below +55 degrees. In addition to the natural ventilation design, the box requires the configuration of temperature control + fan to solve the air circulation in the box as well as the dissemination of heat.
The use of temperature control + fan should be fully considered fan maintenance difficulties, fan maintenance, shall not affect the normal work of other equipment in the equipment box. Temperature control range of +45 degrees on, +36 degrees off. Equipment box box temperature such as higher than +55 degrees, resulting in the failure of the equipment in the box, the equipment box manufacturers need to be responsible for the box equipment maintenance, replacement costs, and free of charge on this procurement contract for all the box to be transformed, until up to standard. Working environment: operating temperature range: -5 ~ +55 ° C, required at 55 ° C can work for a long time; humidity: ≤ 95% non-condensing; altitude: ≤ 1000 meters; the product surface should be made dust-proof, waterproof, sunlight, corrosion-resistant and other treatments; the protection level should be up to IP55 (protection from dust, protection from water) or more; the long-term stability of the operation of should not be subject to exposure to sunlight, acid rain, typhoons and other harsh environmental conditions.
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