屏蔽门的噪声及其测试方法的研究——对标准CJ/T236-2006有关条文的修改建议

摘要

The standard CJ/T 236-2006< Urban Railway Transportation Platform Screen Door System> has stipulated noise limit and its testing method on the platform screen door, though very necessary, the level of noise judgment must be discussed, as is read that ' the peak value of noise is less than or e-quals 70dB (A)' stipulated by the Standard CJ/T 236-2006,it is not accepaible for screen door design. Therefore, to supplement and perfect the noise test of UMT is necessary.%CJ/T 236-2006《城市轨道交通站台屏蔽门》对屏蔽门的噪声限值及其测试方法作出规定,这是非常必要的.然而其规定的“噪声目标峰值小于等于70dB(A)”的判定合格标准却值得商榷,因为它与人耳对声压起伏变化的辨别不相适应.对屏蔽门而言,其要求过高,不切合实际.应明确为:噪声目标有效声压级小于等于70 dB(A).此外,对屏蔽门噪声的试验方法亦有必要给予充实、完善.