广播扩声（音响）系统馈线线径的选择和计算

Selection and Calculation of the Feeder Diameter of Sound Systems

依据对多个广播扩声系统的设计审查,作者认为对广播线路的选择没有依据相关规定,有的工程导线截面选的过小,势必会造成音质、音响效果差,甚至可能听不到声音,有的又选得过于大,造成不必要的浪费.本文针对上述列出了广播网的线路衰减标准,提出了定压式网路、高阻抗、低阻抗网路导线的选择.

Accordance with the line attenuation standard of broadcast network, the paper puts forward the selection of wire for fixed voltage loop, high impedance and low impedance loops.