Current transformer - wiring

[Designmen90]

Hello ?,
is there any regulation of wire cross section for current transformers? Somewhere I read that wires from transformer to Amp meter (for example) should be minimum 2.5mm2, but on some other site I read that it must be minimum 4mm2 ?. I don't know where I read it, but I read it.
What is your opinon, which one is correct? Is there any regulation?
Tnx!! ?

 

[Pete999]

Hello ?,
is there any regulation of wire cross section for current transformers? Somewhere I read that wires from transformer to Amp meter (for example) should be minimum 2.5mm2, but on some other site I read that it must be minimum 4mm2 ?. I don't know where I read it, but I read it.
What is your opinon, which one is correct? Is there any regulation?
Tnx!! ?

Not sure but you must remember\to provide a shorting facility from the CT leads just in case you need to remove the wiring from the Ammeter