... rates power will decrease 5%Marine standard alternator is IP23,Air filter is an option, but rated power of the alternator will ... wave distortion and output voltage.Phone interferenceTHF(defined by 40th part of BS4999) <2%.TIF(defined by ASAC50.12)<50Radio interferenceBrushless ... are not include in the quality guarantee.Manufacturing StandardsGB755, Third part of BS 5000,VDE 0530, NEMA MG1-22,IEC34,CSA ...