諧波和閃爍應(yīng)該是EMI的,而不是EMS的,看61000-3族標(biāo)準(zhǔn)的介紹:this section of IEC 1000-3 is concern with the limitation of voltage fluctuations and flicker impressed on the public low-voltage system.注意“impress on"是施加而不是被施加,所以諧波和閃爍是設(shè)備對外的,而不是外界對設(shè)備的,所以是EMI,不是EMS。