Safe way to measure AC current?

[jeroen79]

In Europe, the three conductor Schuko plug is reversible!

At least this will not make any promise about polarity and you'll have no excuse for blindly trusting the mechanical soundness of the plug or the electricien who wired the socket.

[KerryW]

You can increase the resolution of your clamp meter by wrapping the through wire around the clamp instead of just passing it through once.  Then divide the reading by the number of wraps.  (Is that what Brutte was saying?)

In my town, the Public Library has Kill-a-Watts available to borrow.  Maybe your town does, too.

[Assafl]

I designed and printed an easy to use adapter for current measurements. It has a 1x loop and a 10x loop formed with lamp wire which is compliant with electrical regulations/standards, thin, and very sturdy. It had to be thin to get 10 loops to fit the jaw of the Fluke 80i-110s DC/AC current clamp.

It is wired between a 220V socket and a 220V plug and is 100% insulated.

It is downloadable at: http://www.thingiverse.com/thing:570766