The biggest influence factor is the temperature, the signal attenuation of the cable is affected by temperature. The temperature rises every 10 degrees Celsius, and the signal attenuation of the cable increases by 4%. Therefore, the effects of temperature on the signal attenuation and function are far greater than many other environmental factors.
Communication cable is usually installed on the ceiling, the exhaust duct such as environmental temperature tend to higher ground. Many steel structure building and investigation of the temperature of the exhaust pipe in midsummer season can reach 49 degrees Celsius. Therefore, promotes the use of a low attenuation wiring system, achieving a target 200 MHZ bandwidth requirement under 40 degrees Celsius.
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