Trumpy,
I don't know what an RCD is. Also I would have to concede to anybody's experience with GFI's on a ranges because I've never done it.
But I can say that leakage current is what a GFCI is for. If you have leakage current but you decide it is ok, well, I don't know how to address that.
Amp-Man,
[1] You are not required to use GFI protection.
[2] I think you are misinterpreting the purpose of the EGC. Are you expecting it to protect a human from a shock hazard in the presence of leakage current?
