Arc Flash & Flame ResistantClothing – Albury Sep. 2012
70E HRC 2 Arc Flash (480v)
What does an Arc Flash look like?
What is an Arc Flash?            Dangerous release of energy            created by an electrical fault             Release...
Arc Flash Events• Arc temp can reach 35,000 F• Fatal burns can occur at >10  feet• Majority of hospital admissions  due to...
Arc Energy Basics• Exposure energy expressed in cal/cm2• ½ to 1 cal/cm2 = hottest part of lighter in 1 sec• An exposure of...
Arc Thermal Protection Value•   ASTM F1959 Test Method Defines Fabric Performance in Electrical    Arc Flash.• IEC 61482-1...
ATPV Testing•   Fabric panels are subjected  to electric arcs• Calorimeters measure heat  transfer through fabric• Voltage...
The U.S Experience.• 1999 improved fatality data•   80% fatalities burn related.•   Complications from high % body burn.• ...
The US Experience – contd.• Fatal burns >10 feet• Majority of hospital admissions are arc flash burns, not shock!• 30,000 ...
BASICS OF NFPA 70E               U.S. STANDARD FOR ELECTRICAL SAFETYHRC CATEGORY   CLOTHING                      REQ. MIN....
Current Situation in Australia• 100% cotton drill (Non FR) – NENS 09-2006• New draft including FR has been circulated to  ...
Other Australian & International Standards• American/Australian/EuropeanElectrical workers;• NFPA 70E / AS???? (NENS 09) /...
100% COTTON IS NOT F.R.
POLY/COTTON IS NOT F.R.
BUT THIS IS – EVEN AFTER 100 I/L’S
What Is a Burn?•   A chemical process which    progressively injures skin; severity    relates to depth•   1st : redness, ...
Survival Factors• Survival odds fall with increasing % burn• Survival odds fall dramatically over 50% body burn• Odds of s...
Why is FR Needed?•   Most severe burns injuries and    fatalities are caused by non-    flame resistant clothing igniting ...
What is Flame Resistant Clothing?• Clothing made from fabrics  that self-extinguish• Fabrics may be natural or  synthetic•...
Keys to Choosing a Successful Program What hazards are present?                                                 Purchase, ...
Inherent vs. Treated Flame Resistant FabricsReally just a marketing term used to differentiate competitive products.• All ...
PYROVATEX          PROBAN           ULTRASOFT            NOMEX/KERMEL          TECGEN                TECASAFE             ...
STOP,DROP & ROLL !
WHICH BANK?
Arc flash & flame resistant clothing distributed by Charles Parsons
Upcoming SlideShare
Loading in...5
×

Arc flash & flame resistant clothing distributed by Charles Parsons

897

Published on

UltraSoft Fire Resistant fabrics by Charles Parsons

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
897
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
35
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Arc flash & flame resistant clothing distributed by Charles Parsons

  1. 1. Arc Flash & Flame ResistantClothing – Albury Sep. 2012
  2. 2. 70E HRC 2 Arc Flash (480v)
  3. 3. What does an Arc Flash look like?
  4. 4. What is an Arc Flash? Dangerous release of energy created by an electrical fault Release will contain: • Thermal energy • Acoustical energy • Pressure wave • Debris
  5. 5. Arc Flash Events• Arc temp can reach 35,000 F• Fatal burns can occur at >10 feet• Majority of hospital admissions due to electrical accidents are from arc flash burns, not from shock• Over 2000 people admitted to burn centers yearly with severe arc flash burns
  6. 6. Arc Energy Basics• Exposure energy expressed in cal/cm2• ½ to 1 cal/cm2 = hottest part of lighter in 1 sec• An exposure of only 1-2 calories will cause second degree burn on human skin• Typical non-FR workwear can ignite @ 2 cals/cm2• Arcs typically release 5-30 cals, and energies of30-60 cals are not uncommon
  7. 7. Arc Thermal Protection Value• ASTM F1959 Test Method Defines Fabric Performance in Electrical Arc Flash.• IEC 61482-1-1A equivalent european test method• ATPV – Incident energy (cal/cm2) that results in 50% likelihood of onset of 2nd degree burn under fabric
  8. 8. ATPV Testing• Fabric panels are subjected to electric arcs• Calorimeters measure heat transfer through fabric• Voltage, amperage, gap and distance are held constant• Duration (cycles) are varied to achieve higher and lower energies
  9. 9. The U.S Experience.• 1999 improved fatality data• 80% fatalities burn related.• Complications from high % body burn.• NFPA 70E first published in 2000• OSHA clamping down, making sure employers comply since BP’s Oil platform disaster in Carribean.•
  10. 10. The US Experience – contd.• Fatal burns >10 feet• Majority of hospital admissions are arc flash burns, not shock!• 30,000 arcs, 7000 burn injuries per year• Over 2000 people admitted to burn centers yearly with severe arc flash burns.• Over 400 fatalities a year
  11. 11. BASICS OF NFPA 70E U.S. STANDARD FOR ELECTRICAL SAFETYHRC CATEGORY CLOTHING REQ. MIN. ARC SIMPLIFIED FR DESCRIPTION ATPV CAL/CM2 CLOTHING SYS. EVERYDAY WORK CLOTHING ARC RATING >= 8O NON MELTING, N/A INDURA ULTRA SOFT SINGLE LAYER S301 SHIRT/COVERALL FLAMMABLE FABRIC S451 PANT/COVERALL, S130 T-SHIRT/HENLEY/POLO ALL MEET HRC 0,1,& 21 FR SHIRT/FR PANTS OR 4 FR COVERALL2 COTTON U/WEAR + FR 8 SHIRT/PANTS ELECTRICAL “SWITCHING” CLOTHING, ARC RATING > 403 COTTON U/WEAR + FR SHIRT/PANTS PLUS FR 25 INDURA ULTRA SOFT S801 OVER S341 MEETS HRC’S 3&4 COVERALL,OR COTTON U/WEAR + 2 FR COVERALLS4 COTTON U/WEAR + FR SHIRT/PANTS PLUS MULTILAYER 40 FLASH SUIT
  12. 12. Current Situation in Australia• 100% cotton drill (Non FR) – NENS 09-2006• New draft including FR has been circulated to members – yet to be returned for board approval?• SF-004-06 “Protective Clothing for Electrical Workers” is not active.• No draft at this stage – time schedule unknown?• Objective – to add flame retardant protection as well as arc protection to limit body burn injuries.• AS4836 – 2011 “Safe Working on L.V. installations”
  13. 13. Other Australian & International Standards• American/Australian/EuropeanElectrical workers;• NFPA 70E / AS???? (NENS 09) / EN 61482Wildlands Firefighting;• NFPA 1977 / AS4824 / EN 15384Structural Firefighting;• NFPA 1971 / AS 4967 / EN 469Protection against Flash Fire;• NFPA 2112 / AS???? (AS4824) / ISO 11612• ISO 11612 (EN 531)- Protection against Heat & Flame• ISO 11611 (EN 470)– Protection against Welding spatter
  14. 14. 100% COTTON IS NOT F.R.
  15. 15. POLY/COTTON IS NOT F.R.
  16. 16. BUT THIS IS – EVEN AFTER 100 I/L’S
  17. 17. What Is a Burn?• A chemical process which progressively injures skin; severity relates to depth• 1st : redness, pain – not permanent• 2nd: blistering – skin will regenerate• 3rd: total skin depth destroyed. Will not regenerate – requires grafting• 4th : Underlying muscle damaged
  18. 18. Survival Factors• Survival odds fall with increasing % burn• Survival odds fall dramatically over 50% body burn• Odds of survival fall as age increases
  19. 19. Why is FR Needed?• Most severe burns injuries and fatalities are caused by non- flame resistant clothing igniting and continuing to burn• Flame resistant clothing will self- extinguish, thus limiting the injury• Body area under non-FR clothing is often burned more severely than exposed skin
  20. 20. What is Flame Resistant Clothing?• Clothing made from fabrics that self-extinguish• Fabrics may be natural or synthetic• Designed to limit (not eliminate) burn injury• Survival, extent of injury, recovery time and quality of life are all dependent on FRC performance
  21. 21. Keys to Choosing a Successful Program What hazards are present? Purchase, Lease or Protection Rent? What performance standards are available for the hazard? What options will have reasonable What product options are available durability at their that protect to the level of our comparative price? hazards? What fabric offer the best value equation combining performance, comfort & durability? Comfort Value What is the maximum level of protection that our personnel will voluntarily wear? What choices can we allow?
  22. 22. Inherent vs. Treated Flame Resistant FabricsReally just a marketing term used to differentiate competitive products.• All Flame Resistant fabrics have been engineered to be Flame Resistant – its just that it can be engineered at different stages in the fabric manufacturing process;• At the fibre stage, eg. FR modacrylic vs Nomex• At the yarn stage, eg. PFZ wool• At the fabric stage, eg. UltraSoft, Proban, Pyrovatex Flame resistance must be durable to launderings, wear, the environment, etc. for the service life of the garment. Look for proven products!
  23. 23. PYROVATEX PROBAN ULTRASOFT NOMEX/KERMEL TECGEN TECASAFE 100% Cotton & 100% Cotton & 88%Cotton/ 12% HT 100% Aramid ???Carbonised 45%fr-m odacrylic/ Cott on ri ch Cotton rich nylon fibre/Aramid??? 35% lyocel l /20% arami dF.R. System Treated Treated Treated Inherent Inherent/ blend Inherent/flamm-able blendAdvantage Colour Range 50 wash Q.A. FR guaranteed FR guaranteed FR guaranteed FR guaranteed Price Price Soft handle High performance High performance Soft handle Good durability High durability 75 °C wash Range of weights. Colourfast Inc. arc rating Cotton comfort Local stock Market proven Excellent valueDisadvantage Stiff handle - Poor comfort Poor seam slip Poor colourfastness Low durabilility Low durability Can be UV sensitive Limited colours – Appearance retention/pilling limited information - No stock supply No stock supply No stock supply Lack of Q.A. Not market proven Poor performance QFS/NSW No Acid Sour - Expensive Expensive Not for flash fire Hydrolysis
  24. 24. STOP,DROP & ROLL !
  25. 25. WHICH BANK?
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×