Looping wires for more accurate measurements

[oliv3r]

For those who don't know, if we loop/wrap a wire multiple times through the CT coil, we can increase the accuracy, at the cost of range. E.g. a 1000:1 CT coil, becomes a 1000:2 CT coil by simply pulling the cable through twice. Doing it 4 times is also possible, and we'd get 1000:4 obviously.

In HA (or somewhere) we'd have to device the value of course to compensate of course.

Here in Europe, or maybe just here in my house :p our mains usually have either 35 amps single phase breakers, or 3 x 25 amps (you could get 4x 35 at extra cost, and very old homes could have 1x 40 amps). The emporia's main CT coils are rated however at 200 amps, with probably the intention of going on 100 amp panels (which is common in the US with 110V's).

Going with 40 amps for the moment, measuring at 200 amps max range means we'd have a lot of room for increased accuracy. So wrapping the wire around the CT coil 4 times would mean 160 amps max, well below the limit (and consuming 40 amps is exceptional anyway). This would yield however a much higher accuracy here.

The same could be said for the branch circuits, where 16 amp per branch is common here, and we have 50 amps max.

Any thoughts? Anybody experimented with this already?