Noise that electricity stove produce at the steel-making up to 130dB (A ), far exceed the national requirement about 85dB (A ) of the ambient noise standard , has already brought danger to the operate workers, and also polluted the environment seriously.

• 电炉炼钢时产生的噪声最高达130dB(A),远远超过国家有关环境噪声标准的85dB(A)的要求,既给操作工人带来危害,又严重污染了环境。