【摘要】 为了解决声环境功能区区划升级后变电站厂界噪声未达标问题,笔者根据变电站噪声治理前噪声检测数据,分析了户外变电站背景噪声、站内噪声、厂界噪声存在超标问题的原因,提出了采用吸隔声屏障来控制噪声传播途径的降噪方法。实践应用表明:户外变电站加装隔声屏障后,变电站厂界噪声平均降噪量可达到7 d B(A),低于国家标准规定的环境噪声限值。更多还原

【Abstract】 In order to reduce the substation boundary noise to the standard after upgrading the division of the functional regions for sound environment,the author analyzed,according to the detection data before noise control in the substation,the reason for excessive background noise,indoor noise and boundary noise of outdoor substation,and proposed to reduce noise by sound insulation screen which controlled the transmission route of noise. The result shows that,in outdoor substation with sound insulation screen,boundary noise reduces by 7 d B( A),which is lower than the environmental noise limit specified in national standard.更多还原