Forum Discussion
Harvard
Feb 04, 2016Explorer
larry cad wrote:Harvard wrote:
Keep in mind, it is a total Xc of ALL hot to ground wires in the RV, not just the shore power cord.
My first rough calculation using a value of 100 pf/meter gives me a length of about 2250 feet of close coupled wire to produce .005 amps of leakage current.
That would be at 60 Hz .... and not taking in consideration the presence of any RFI filters across the power input of things like the converter.
For 600 Hz it would be 225 feet and 6000 Hz would be 22 feet.
It then becomes a question of whether or not it is remotely possible to see high frequency noise that is present long enough to trip a GFI. Typically a spike of noise will set up an ringing series of oscillations, the frequency and duration of which is dependent on the inductance and capacitance of the network involved.
About Motorhome Group
38,763 PostsLatest Activity: Dec 05, 2025