DS EN 50065-4-7:2005 Signaling On Low-Voltage Electrical Installations In The Frequency Range 3 Khz To 148,5 Khz And 1,6 Mhz To 30 Mhz - Part 4-7: Portable Low Voltage Decoupling Filters - Safety Requirements Pertains to the filter part of portable devices for household and similar uses (hereafter referred to as portable decoupling filters) consisting of the filter part, a plug or an appliance inlet or a p