I intend to use round enamelled copper wire for voltages upto 500V.
I see that as per
https://en.wikipedia.org/wiki/Magnet_wire.
Breakdown voltage depends on the thickness of the covering, which can be of 3 types: Grade 1, Grade 2 and Grade 3. Higher grades have thicker insulation and thus higher breakdown voltages.
In the 500V application that I have is of a capacitor discharge magnetizer, the magnet wire would be subjected to current pulses not more than 10A. Capacitor would be charged to upto 500V.
My questions are do I really need to used Grade III wire for this application.
what kind of enamel coating is suitable for this voltage range, I see that threre are a range of single and dual coat insulation coatings for magnet wire. Polyester, Polyesteramide, Polyamide-Imide.
Is thare an insualtion coating well suited for this voltage range.
There is also thermal class. But currently I'am more concerned for the voltage breakdown rating of the wire.
Thanks in Advance.