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PPE #151022 03/28/06 01:21 PM
Joined: Sep 2005
Posts: 34
K
kdal Offline OP
Member
I am looking for a good set of PPE.
I have checked Whites,Salisbury,ect.and made a few phone calls.
I prefer a complete kit as opposed to having to buy individual components.
I Googled electrical PPE and found this link. http://www.aplussafety.net/products/store.cfm?d=3053&c=4548&p=16169&do=detail
I called and the price for the 8 cal kit was
$240 and 4 week delivery.
Any comments, links, preferences, ect would be appreciated.
Thanks
Ken Dalton
Electrical contractor
Perry Florida

Arc Flash PPE Clothing, LOTO & Insulated Tools
Re: PPE #151023 03/28/06 09:35 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
Why are you choosing 8 cal equipment vs. 20, 30 or 40 cal?
How will you decide when to use your 8 cal equipment, and when it isn't enough?


Ron
Re: PPE #151024 03/29/06 01:30 PM
Joined: Sep 2005
Posts: 34
K
kdal Offline OP
Member
Ron
Most of the work I perform on enegized equipment is 208/120 and 240 volt panels.
I am starting a website with some usefull
links.
Take a look at the arc flash calculators and the videos.
The The Mark Standifer Story is worth registering to see.Near the end of the video they give recomendations for ppe at different voltages.
Here is a link to my site. http://www.gtcom.net/~kdal/taylor/county/florida/Dalton.html

Re: PPE #151025 03/29/06 03:16 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
Ken,
There is a ton of work @ <240 that requires PPE greater than 2. Some people use Table 130.7(C)(9)(a) Hazard/Risk Category Classifications for their PPE selection in lieu of performing a detailed calculation. The two portions of the table that related to panelboards at 240 and below, require you to refer to Notes 1 and 3.
There are lots of 240V installations that have short circuit currents in excess of 25kA and fault clearing time greater than 2 cycles.

If the short circuit currents is in excess of 25kA or the fault clearing time is greater than 2 cycles or you don't check either of those two items, then you cannot use that table and must perform the detailed calculation.

Notes:
1. Maximum of 25 kA short circuit current available, 0.03 second (2 cycle) fault clearing time.

3. For < 10 kA short circuit current available, the hazard/risk category required may be reduced by one number.


Ron
Re: PPE #151026 03/29/06 04:43 PM
Joined: Oct 2004
Posts: 806
mxslick Offline
Member
Ron:

Quote
There are lots of 240V installations that have short circuit currents in excess of 25kA and fault clearing time greater than 2 cycles.
and
Quote
Notes:
1. Maximum of 25 kA short circuit current available, 0.03 second (2 cycle) fault clearing time.

What level of PPE would those examples require?

Quote
Table 130.7(C)(9)(a) Hazard/Risk Category Classifications

Where is this information located?

Thanks!!


Stupid should be painful.
Re: PPE #151027 03/29/06 05:07 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
mxslick,
It depends on the work type, fault current and clearing time for the upstream protective devices.
The information is available in IEEE 1584 (detailed calculations) and NFPA 70E (chart and detailed calculations).
NFPA 70E can be found at http://www.nfpa.org/aboutthecodes/AboutTheCodes.asp?DocNum=70E click on preview this document.


Ron
Re: PPE #151028 04/02/06 03:58 PM
Joined: Oct 2004
Posts: 806
mxslick Offline
Member
Thanks for the info, Ron!!

Have a great week, all.....


Stupid should be painful.
Re: PPE #151029 07/02/06 03:47 AM
Joined: Jul 2005
Posts: 56
P
Paul O'Connell Offline
Member
Ken:

You state most of your work is 201/120 and 240 volt. What PPE do you use when that work that is not most of your work is performed by your electricians.

Re: PPE #151030 07/05/06 06:57 PM
Joined: Jul 2005
Posts: 49
V
VAElec Offline
Member
Almost a different question, but can you "series rate" PPE? Does 8.6cal/cm sq workshirt (carhartt or bulwark type) plus 15cal/cm sq jacket (salisbury type w/ hood) equal 23.6cal/cm sq protection?

I have some FR clothing and also "PPE" (sold as such)clothing and wonder how/if I can use them together.

(edited for poor math skill) oops.

[This message has been edited by VAElec (edited 07-05-2006).]


Pete
Re: PPE #151031 07/06/06 07:33 AM
Joined: Sep 2005
Posts: 120
Z
Zog Offline
Member
The answer to your question about layering is yes, you can add them together.

Actually, if those 2 garmets were tested together as a multilayer garment they would probally have a rating around 40cal, but there is no way to know without actually testing them, but you can get your 23.6 cal.

I agree with Ron that you must be careful using the tables in the 70E, there are alot of limitations and you still need to know the fault current and clearing times.

There is a free calculator that uses the 70E equations at this link http://www.epowerplus.com/Training.htm/download.shtml


MV/HV Testing Specialist, "BKRMAN"

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