I'm developing a printed circuit board, and considering I have some traces with 220Vac I'm worried about the clearance.
After research, I conclude that these are the requirements that I need to fulfill:
Voltage (peak) = 350V, according to IPC-2221B:
- External Trace -> 2,5 mm
- Internal Trace -> 0,25 mm
- Coated Trace -> 0,8 mm
The application is for normal conditions, 25°C Ambient Temperature.
In the manufactured boards, like the below, can I consider the traces coated?