Temperature-related changes in dielectric constant and dissipation factor of insulations increase attenuation in data cables used in building plenums

C. Lin, J. P. Curilla
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引用次数: 11

Abstract

Local area network performance can deteriorate when high temperatures cause cable attenuation to increase. This problem can be prevented by careful selection of insulating materials. Dissipation factor and dielectric constant for FEP, PVC, and ECTFE were measured at frequencies from 1 kHz to 300 MHz at 20 degrees C and 60 degrees C. Increases in values for these properties can be related to increases in cable attenuation observed at elevated temperatures.<>
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绝缘材料的介电常数和耗散系数的温度相关变化会增加建筑物通风室内使用的数据电缆的衰减
当高温导致电缆衰减增加时,局域网性能会下降。这个问题可以通过仔细选择绝缘材料来防止。FEP、PVC和ECTFE的耗散系数和介电常数在1 kHz至300 MHz的频率下在20℃和60℃下进行了测量。这些特性值的增加可能与在高温下观察到的电缆衰减增加有关。
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