I am an electronics/software engineer
Now I have a project - for the US market - where we need to equip a few hundred appliances with a CT to monitor current. The appliances are connected to mains with a regular power cord plugged into a regular outlet.
So I need to split the phases in the power cord enough to get my CT wrapped around either the black or the white wire. The CT is split-core, so the cable doesn't even have to be cut off.
To make installation super-easy, I'm thinking I'd supply each site with a short (1-2ft) extension cord with the CT already on it. All I need to do is to separate the wires enough to get the CT in. I'd use one of those white extension cords that can be easily split.
The CT's have a UL mark, and are isolated. The extension cords are off the shelf, also with UL markings.
Would this be "ok" from a code perspective? If not, is there a different approach that would be better? All I need is to get the small CT around one of the phases, but I want to avoid sending out an electrician to every site.
Any ideas welcome.