If you have unit heaters, you don't provide any separation at all...
an 8" deep header over a door is considered separation for some rooms...
based upon that, I'd say a 30" beam is more that enough.

On Wed, Nov 16, 2011 at 11:36 AM, Jay Stough <[email protected]> wrote:

>     We are upgrading the sprinklers in a bay where the insurance company
> wants it to comply with NFPA 30, meaning I will have to use 286 degree
> sprinklers.  We will be removing the existing piping and sprinklers to
> install new in this bay.  The other bays in the building will have 212
> degree sprinklers still.  The bays are separated by 30" steel beams, so the
> branch lines and sprinklers will be above that beam and separated from the
> other sprinklers.  I know that NFPA 13 (2010) 8.4.6.4 requires draft
> curtains for for ESFR sprinklers when using with standard sprinklers, and I
> thought there was something elsewhere about temperature separations, but I
> cannot find it.  Now the insurance company wants to know if the 30" deep
> beam is enough separation.  Can any one refresh my feweble brain and tell
> me where it's at in 13?  Thanks!
>
>
> Jay Stough
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111116/e014490d/attachment.html
> >
> _______________________________________________
> Sprinklerforum mailing list
> [email protected]
> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111116/b3aa1bc3/attachment.html>
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum

Reply via email to