TECHNET Archives

February 2019

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Dave Schaefer <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Dave Schaefer <[log in to unmask]>
Date:
Tue, 5 Feb 2019 09:44:59 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (44 lines)
*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)
> ************************************************************
>

ATOM RSS1 RSS2