Hi Victor,

No, the copper thickness is not relevant to the clearance requirement.
The copper thickness determines the current carrying capability (and corresponding temperature rise)
The clearance is related to peak voltage.

Keep in mind that the minimum clearance is truly MINIMUM (try to use more!) 
and also make sure you use your PEAK voltage spike, not continuous operating voltage.

and I agree with others, the Saturn PCB ToolKit is truly a gift to the design world!
http://www.saturnpcb.com/pcb_toolkit/

Jack



On Tue, 17 Sep 2019 10:43:35 +0000, [log in to unmask] wrote:

>Fellow TechNetters:
>
>    Is there an inter active online electrical conductor spacing calculator in which you plug in numbers and some sort of response is provided?
>Perhaps a CADCAM software.
>Is the PTH copper barrel thickness plays a part in this scenario.
>
>Victor,
>