by , on January 3, 2010
ArcWear Electric Arc Newsletter
Your Source for Electrical Safety News
In This Issue
Arc Test Dates
NEW 70E-2009 Out
Burn Up The Myth
IEEE Electrical Safety Workshop
Layering Data Hard to Come By or Wrong
NESC Changes to 2007 Version
CSA Z462 Now Available
40 cal/cm² Goggle System

Arc Flash Calculations
For Utilities

e-Hazard Classes

Electrical Workplace Safety

New 2009-NFPA 70E
Fort Wayne, IN
Milliken University Spartanburg, SC
Research Triangle Park (RTP), NC
Denver, CO
Greensboro, NC
Phoenix, AZ
Eugene, OR
Omaha, NB
2/24/09 Milwaukee, WI
Kansas City
Dubuque, IA
Scranton, PA
Allentown, PA
Harrisburg, PA
Boston, MA
3/12/09 Charleston, WV
Cedar Rapids, IA
Des Moines, IA
3/30/09 Louisville, KY
3/31/09 Louisville, KY – HV
3/30 – 4/2/09 Louisville, KY – TTT
Colorado Springs, CO
Salt Lake City, UT

ArcWear™ Arc Testing Dates
Need Arc Testing?

Feb 16-19
Mar 16-20
May 4-7
June 8-11
July 6-9
August 10-13

ASTM F1959, ASTM F2178, ASTM F887 fall protection arc testing and mannequin testing at the Kinectrics Lab in
Toronto on the dates above.
Ship materials or clothing to:
Hugh Hoagland
13113 Eastpoint Park Blvd.
Suite E
Louisville, KY
PH: 502-314-7158
We must receive one week before the test date for sample preparation or make arrangements to ship to lab. New and non US/Canadian Customers must make payment before test date.  Testing is offered on a first come/first served basis with priority for consulting customers.  New policy: $100 per material for prep/washing and cutting panels and $100 for international report shipping.
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January 2009

Dear ArcLetter Member,

The ArcWear™ Electric Arc and Flash Fire Newsletter is a quick update on Flame Resistant Clothing issues and news from OSHA and standards committees. This newsletter is FREE and will bring you up to date on the issues that surround flame resistant clothing for flash fire hazards and the electric arc. For previous newsletters or to sign up, visit

NFPA 70E – 2009 Online Free
70E-2009You can purchase the NFPA 70E-2009 in book form or PDF at

NFPA 70E has been on sale for a few weeks and has training materials updated and the first classes are now going on.  The Train the Trainer class has 2 openings for next month still if you want to upgrade your skills.

Complying with NFPA 70E

Question: If a company is looking to comply with the spirit and letter of NFPA 70E, would placing a predisconnect panel inline ahead of their breaker panels eliminate their hazards and thus void the actual need for arc protective clothing? Our logic was that before entering any arc hazard area, the employee would proceed to the disconnect, disconnect all power from the source, lock and tag the predisconnect, and void the need for arc rated clothing.
By doing this, would we comply with NFPA 70E?
Answer: You can basically never avoid arc flash clothing.  Some do in places by engineering control which reduce the arc flash calculation to less than 1.2 cal/cm² for LV and 1.5 cal/cm² for higher voltages but this strategy is iffy.
With your approach, you reduce the time in the clothing but turning off the disconnect would require some PPE and testing the circuits would also require proper PPE until the circuit is VERIFIED to be de-energized it is NOT in an “electrically safe work condition” unless it meets all the criteria.

St. Louis, MO February 2-6, 2009

Since 1991, the IEEE IAS Electrical Safety Workshop has provided the “premier international forum to enable and accelerate change in the electrical safety culture and pushing the envelope on what is possible in preventing workplace injuries from electrial hazards.”
The 2009 IEE IAS ESW will provide 4 days interaction with others who share a passion for preventing electrical injuries in the workplace.
Veterans of the workshop will see changes to offer more tools to prevent electrical injuries.  First time attendees will see that the IEEE IAS Electrical Safety Workshop mission is to help pave the future in electrical safety by changing how you think about what is possible, or by changing electrical safety.

DriFire Up-to-Date Offers Layer Data
ASTM F1959 Changed in 2006 Lowering Layered Data

Some layers are being re-tested due to the change in the standard.  Be sure you have data from 2006 forward on layers since many are found to be too high due to a change in the standard.
The new 2009 edition of the NFPA 70E, Electrical Safety in the Workplace is now available and has added a new FR requirement for personal protective clothing. The focus of the new requirement is to avoid the chance that natural fiber under layers will ignite. The standard no longer allows “counting” protection from non-arc-rated undergarments.

This means, for example, a cotton t-shirt under an arc-rated outer shell does not qualify as an HRC 2 garment system any more. Now, either the FR outer shell must rate at least 8 cal / cm2 or additional FR undergarments layers must be added to bring the system up to the full 8 cal/cm² of protection required for HRC 2. Total System Arc Rating as defined in Annex M of the current standard is becoming the norm. It is reasonable to add layers arc ratings but if you do more than than you must rate them.

DriFire Data

CSA Z462 -2008 Now Shipping
CSA Z462 The NFPA 70E standard for Canada is now shipping

The CSA Z462 standard is useful even to NFPA 70E users since it is the standard for Canada but the committee progressively added some Annex materials giving guidance on areas not covered by the 70E committee.  Both committees have state-of-the-art electrical safety and the main text is substantially the same but the international flavor of the CSA Z462 standard and the availability in French will be of use to many international users of electrical safety. offers an 8 hour training class on Z462.

NESC Update to 2007 Version Now Available

Major Changes in for Utility Arc Flash Assessment
The 2007 Edition Now Includes the Following Updates Fuse used
The 2007 Edition of the NESC has been updated to include the following five Tentative Interim Amendments: (TIA): TIA-2007-1 (Rule 110A2); TIA-2007-2 (Table 253-1 and -2); TIA-2007-3 (Rule 261N); TIA-2007-4 (Rule 215C5a); and TIA-2007-5 (Table 410-2)
Also now included are two errata sheets which cover the following rules: Table 232-1; Figure 233-1; Table 233-1; Table 233-2; Table 234-1, Table 235-5, Rule 250C, Figure 250-3(a), Table 250-2, Rule 261L2b, Table 410-1, Table 441-3 and Appendix C
View in detail the revisions made to the 2007 National Electrical Safety Code.

NEW 40 cal/cm² Arc Flash Goggle Balaclava
NSA-Goggle NSA/Paulson Crack 40 cal/cm² with a NEW Arc Flash Goggle/Balaclava System

For Arc Flash Hoods in the NFPA 70E standard, there is a clear standard definition.  But what about line workers who are working between lines or another place where a fabric hood poses a “greater hazard”.
Now there is an answer, Arc Flash Goggles with a matched balaclava.

Our newsletter is sponsored by many companies around the world.  If you have ideas for articles or have questions, don’t hesitate to write.

Hugh Hoagland

13113 Eastpoint Park Blvd. Suite E
Louisville, KY 40223
PH: 502-314-7158 | 13113 Eastpointe Park Blvd | STE E | Louisville | KY | 40223

Hugh Hoagland
About author:
Hugh Hoagland is the foremost tester of clothing and PPE exposed to electrical arcs and is an arc flash expert. Read more about Hugh.

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