*Your clearance needs to be designed for the maximum. * Agreed. On Tue, Feb 5, 2019 at 12:00 AM TechNet automatic digest system < [log in to unmask]> wrote: > There is 1 message totaling 28 lines in this issue. > > Topics of the day: > > 1. IPC2221 Electrical Conductor Spacing Requirements > > ---------------------------------------------------------------------- > > Date: Mon, 4 Feb 2019 09:40:45 -0600 > From: Jack Olson <[log in to unmask]> > Subject: Re: IPC2221 Electrical Conductor Spacing Requirements > > On Mon, 28 Jan 2019 10:54:30 -0600, Steven Schell < > [log in to unmask]> wrote: > > >I am trying to interpret the electrical clearance requirements in the > IPC2221A standard, under section 6.3. > >Table 6-1 lists minimum spacing requirements for various voltage ranges > between conductors. > >The table indicates that this is for AC or DC peaks. > >I am trying to interpret that last part. > >Our application has a tracking power supply that provides a variable DC > output voltage. The average DC voltage is between 16 and 30V, but the peak > instantaneous DC voltage exceeds 31V. > >In this case, should I be complying with the minimum spacing requirements > for 16-30V, or should I be complying with the minimum spacing requirements > for 31-50V. > > Your clearance needs to be designed for the maximum. > I think you need to use the 31-50V value. > > ------------------------------ > > End of TechNet Digest - 29 Jan 2019 to 4 Feb 2019 (#2019-14) > ************************************************************ >