Transformer wound for isolation voltage at 4580 metres altitude?
Posted by: treez
on
Hi,
We want to do an innoswitch flyback for 60W (VAC = 85-265VAC, 50-60Hz) , but for operation in compliance with EN62368 and at altitude of 4580 metres.
As such the isolation voltage between primary and secondary is more than the standard 3kVrms. The adjustment factor from page 88 of EN62368 means that we now need 3605Vrms of isolation.
Do you know what type of wire we can use in the flyback transformer for this?
Due to the high secondary current, we cannot use TEX-ELZ on both primary and secondary.
Hi treez,
Good day!
For a specific wire to use in compliance with 3695 V at altitude of 4580 meters, we suggest consulting on your safety engineer or transformer/ wire manufacturers. Considerations should also be with the bobbin that meets creepage/clearance for your working voltage and pollution degree.
I hope this works for you.