It is currently Sun Oct 22, 2017 5:01 am



Post new topic Reply to topic
Author Message
ekstra   ara
 Post subject: Layering Chart From Tyndale
PostPosted: Wed Feb 25, 2015 9:11 am 
Offline
Arc Level
User avatar

Joined: Wed May 07, 2008 5:00 pm
Posts: 676
Location: Rutland, VT
This is the first time I have seen a published chart from a clothing manufacturer that has layering values for tested combinations. Thought I would post it here for info although I am hesitant as it is for one specific manufacturer. Does anyone know of other similar charts done by others?


You do not have the required permissions to view the files attached to this post.

_________________
Barry Donovan, P.E.
www.workplacesafetysolutions.com


Top
 Profile Send private message  
Reply with quote  
 Post subject: Re: Layering Chart From Tyndale
PostPosted: Fri Feb 27, 2015 6:12 am 
Offline
Plasma Level
User avatar

Joined: Tue Oct 26, 2010 9:08 am
Posts: 1779
Location: North Carolina
Nothing other than the few combinations that show up on Hugh's web site which seem to be targetted towards utilities.


Top
 Profile Send private message  
Reply with quote  
 Post subject: Re: Layering Chart From Tyndale
PostPosted: Mon Mar 02, 2015 9:42 am 
Offline

Joined: Wed Jun 24, 2009 4:45 pm
Posts: 41
Location: WA State
My company uses Tyndale, thanks for the heads up. I've also not seen data like this published.


Top
 Profile Send private message  
Reply with quote  
 Post subject: Re: Layering Chart From Tyndale
PostPosted: Mon Mar 09, 2015 8:10 am 
Offline

Joined: Mon Mar 09, 2015 8:04 am
Posts: 1
Westex has published layering data for years.


Top
 Profile Send private message  
Reply with quote  
 Post subject: Re: Layering Chart From Tyndale
PostPosted: Mon May 11, 2015 8:43 am 
Offline

Joined: Mon May 11, 2015 8:02 am
Posts: 3
Location: Golden, CO
Very interesting. My training had stated that 'layering' to achieve an HRC rating was not allowed and I have been teaching that in my classes. I will have to research this and perhaps update my lectures.


Top
 Profile Send private message  
Reply with quote  
 Post subject: Re: Layering Chart From Tyndale
PostPosted: Fri May 15, 2015 4:27 pm 
Offline
Plasma Level
User avatar

Joined: Tue Oct 26, 2010 9:08 am
Posts: 1779
Location: North Carolina
Kurt Daniel wrote:
Very interesting. My training had stated that 'layering' to achieve an HRC rating was not allowed and I have been teaching that in my classes. I will have to research this and perhaps update my lectures.


Layering has always been allowed. What changed is that at one time you simply added the ATPV values. Now you are not allowed to add ATPV values. However layering was never disallowed. The change was that testing had to be done to verify the ATPV of the combination. The silver lining is that the combination is not additive...it exceeds additive ratings.


Top
 Profile Send private message  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
© 2017 Arcflash Forum / Brainfiller, Inc. | P.O. Box 12024 | Scottsdale, AZ 85267 USA | 800-874-8883