I think 30ma is about normal. There’s a good reason, in an average socket ring (or even radial) you will always get SOME leakage. So there’s always going to be a common sense allowance made depending on whether it’s a single socket, a small radial or one or more rings.
Sure, but as far as I could find, even those have trip rating of 30mA. But perhaps I could find some with lower rating.
I think 30ma is about normal. There’s a good reason, in an average socket ring (or even radial) you will always get SOME leakage. So there’s always going to be a common sense allowance made depending on whether it’s a single socket, a small radial or one or more rings.