Distance between high voltage traces

[techno]

I had a question related to high voltage pcb design. I have a compact size board of which I'm trying to increase the functionality withouth increasing the size. I'm looking for an equation that relates the voltage on each trace, the distance between the traces, the dielectric constant of the material (or any other material property for that matter) and the leakage current. I need this equation to be able to design the board with minimal leakage current possible.

Can anyone help?

 

[IanP]

Maybe this will answer your questions ..

 

[vdaniel]

The information is good. Maybe you can recommend the coating too?

Varuzhan

 

[newbie101]

for both power lines ,
rule of thumb is --> spacing >= trace length for almost zero mutual inductance

also it is better to split traces, that is have more than one power traces instead of just one large thick trace... you just need to space them apart

regards,
newbie