Arcflash Pbrhjg Wmv 060509
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Transcript of Arcflash Pbrhjg Wmv 060509
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1PB/RH -- March 3, 2009
ARC FLASH HAZARDS
Construction Safety
Association of Ontario
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2PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Purpose of this Presentation
#ntro"uction to$
% Ha!ar" of arc fash
% &e' CSA Stan"ar" on eectrica safety
% Arc fash (re)ention an" (rotection
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3PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Five Main Topics
1. #ntro"uction to arc fash
2. Arc fash in*uries
3. Co"es an" stan"ar"s
. Protecti)e cothin+ an" eui(ent
!. Pre)ention
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PB/RH -- March 3, 2009
Topic 1 "Topic 1 "#ntro$uction to Arc F%ash#ntro$uction to Arc F%ash
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!PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is an Arc F%ash Ha'ar$(
“. . . a dangerous condition associated with the
release of energy caused by an electric arc.”
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)PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is an *%ectric Arc(
An eectric arc is a short circuit throu+h the air.
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An eectric arc 'i osciate an" escaate if
not constraine".
A sin+e-(hase eectric arc can en+uf asecon" or thir" con"uctor in ony t'o cyces.
An eectric arcs current (ro(es the arc a'ay
fro the (o'er source.
Characteristics of an *%ectric Arc
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat Causes Arc F%ash(
ust, i(urities, corrosion, con"ensation, anias
S(ar1 "ischar+e fro$
% Acci"enta touchin+
% ro((in+ toos
O)er-)ota+es across narro' +a(s
Faiure of insuatin+ aterias
ui(ent faiure
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is Arc %ast(
. 4he fash causes an e5(osi)e e5(ansion
of air an" eta.
% For e5a(e$ 6hen co((er )a(ouri!es it
e5(an"s 7y a factor of 8,000.
2. 4he 7ast (ro"uces "an+erous$
% Pressure 'a)es % Soun" 'a)es
% Moten stee an" shra(ne.
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Video Clip 1 – Arc Flash DemoVideo Clip 1 – Arc Flash Demo
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
ectric arc Arc fash Arc 7ast
Arc F%ash *vents
Co(ients of Sais7ury ectrica
Safety :.:.C.
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
For0s of Arc F%ash *ner
&oise
5(ansion
;a(ori!ation
4hera ra"iation
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13PB/RH -- March 3, 2009
Topic 2 " Arc F%ash #nuriesTopic 2 " Arc F%ash #nuries
13
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1PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Arc F%ash #nuries
ectric shoc1
Se)ere 7urns
Bin"ness
Bast in*uries
% Shra(ne 'oun"s
% :un+ 7ast in*uries
% Ru(ture" ear"rus
% Pressure 'a)e in*uries
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1!PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
1. Po4er % aount
of ener+y at the arc
2. Distance % of the
'or1er to the arc
3. Ti0e % "uration of
the arc e5(osure
Severit Factors
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1)PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
5i$eo C%ip 2 " 67ot Safe at 1, inches8
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1+PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
5i$eo C%ip 3 " 67ot Safe &or9in 7ear8
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1,PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
*%ectric Shoc9 #nur " urn
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1-PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Severe urns fro0 Arc F%ash
Arc fash u( to 3<,000=F
Sun 9,900=F
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2/PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Pro:a:i%it of Survivin urns
; S
u r v i v a
%
Ae Rane< =ears
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21PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
%in$ness
Fash of i+ht is so intense it can
"aa+e )ision.
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22PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Shrapne% &oun$s
Material and molten metalcan hit the body at over
700 miles per hour.
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23 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
%ast Lun #nur >L#?
Arc 7ast can cause inhaation in*uries.
For e5a(e$
% #nhain+ hi+h te(eratureco((er )a(our.
% More than 00 to5ic
su7stances can 7e foun"
in the fues.
BLI + Burns = Greater chance of death
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2 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Hearin Da0ae
Arc 7ast at 2 feet >< "eci7es
?et en+ine at 200 feet 32 "eci7es
Pain thresho" 30 "eci7es
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2! PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Pressure &ave #nuries
Arc 7ast can thro' a 'or1er$
% Off a a""er
%#nto near7y 'as or eui(ent.
2000 7s/ft2 (ressure on the 7o"y can cause$
% Concussion
% Coa(se" un+s % Other interna in*uries
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2) PB/RH -- March 3, 2009
Topic 3 "Topic 3 "Co$es an$ Stan$ar$sCo$es an$ Stan$ar$s
2)
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2+ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Stan$ar$s
@S Occu(ationa Safety
Heath A"inistration
@S &ationa Fire Protection Association
-Stan"ar" &FPA 0
#nstitute of ectrica
ectronics n+ineers -Stan"ar" <>
Cana"ian Stan"ar"s Association
-Stan"ar" ->82
Occu(ationa Heath Safety Act -A((ica7e re+uations
Cana"ian ectrica Co"e
-Rue 2-308
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2, PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is 7FPA +/*(
7ationa Fire Protection Association
“Standard for Electrical Safety in the Worplace”
D Stan"ar" for eectrica safety in @nite" Sates
D EHaroni!e" 'ith CSA >82
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2-
&hat is CSA Stan$ar$ Z)2(
4he stan"ar" for 'or1(ace eectricasafety in Cana"a.
EHaroni!e" 'ith &FPA 0.
PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
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3/ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
ectrica Safety Pro+ra
Arc Fash Ha!ar" Anaysis
% Fash Protection Boun"ary
% Faut Current Cacuations
% Arc Faut Cearin+ 4ie
% #nci"ent ner+y 5(osure
Reuire" PP
CSA Stan$ar$ Z)2 a$$resses@
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31 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
#nstitute of *ectrica an" *ectronics*n+ineers
Offers a etho" for (erforin+ arcfash ha!ar" cacuations.
&hat is #*** Stan$ar$ 1!,(
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32 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is C*C Ru%e 23/)(
Cana"ian *ectrica Co"e
“!ule "#$0% Shoc and &lash 'rotection” A reuireent for fie"-ar1in+ eectrica
eui(ent to 'arn (ersons of (otentia
eectric shoc1 an" arc fash ha!ar"s.
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33 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Sa(e a7e that co(ies 'ith CC Rue 2-308.
ReBuire$ &arnin La:e%
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3 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
ptiona% &arnin La:e%
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3! PB/RH -- March 3, 2009
Topic " Protective C%othinTopic " Protective C%othinan$ *Buip0entan$ *Buip0ent
3!
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3) PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
F%a0eResistant >FR? C%othin
Protects a 'or1er fro recei)in+ se)ere
7urns if the 'or1er is e5(ose" to a fae.
#s sef-e5tin+uishin+ 'hen the source of thefae is reo)e".
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3+ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
&hat is a Ca%orie(
A caorie is the aount of heat nee"e" to raise
the te(erature of one +ra of 'ater 7y =C.
4hera ener+y is easure" in caories/cG.
(." calories)cm* + ,olding your finger
in the blue part of the
flame for one second.
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3, PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
:iit the #nci"ent ner+y e)e of the
arc fash to .2 ca/cG a+ainst the
'or1ers chest.
:oo1 for a a7e that states$
% <08 a((ro)a IAS4M F<08J
% Arc ratin+ of the +arent.
A aterias in the +arent
shou" 7e FR Rate"$
% 4hrea" % Buttons
% #nsuation
% i((ers, etc.
FR Rate$ C%othin
Photo co(ients of
Sais7ury ectrica Safety :.:.C.
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3- PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Tpica% PP* ReBuire0ents
Hazard/RiskCategory
Eye protection, ear canalinserts, long sleeve shirt
and pants
Arc ratedclothing
Face & HeadProtection
Flash SuitHood
0
2
3
>
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/ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Tpica% Protective C%othin
Hazard/RiskCategory
Clothing Description Required MinimumClothing Arc Rating
/ on!"elting, #la""a$le "aterial %ith #a$ric %eight o# at least '( oz/yd)
ot applica$le
1 Arc!rated FR shirt * FR pants or FR coveralls calories/c"+
2 Arc!rated FR shirt * FR pants or FR coveralls calories/c"+
3 Arc!rated FR shirt * FR pants or FR coveralls,
and Arc!rated #lash suit, the layered syste""ust "eet the re-uired "ini"u" rating'
)( calories/c"+
Arc!rated FR shirt * FR pants or FR coveralls,and Arc!rated #lash suit, the layered syste""ust "eet the re-uired "ini"u" rating'
. calories/c"+
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1 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Snthetic C%othin
Synthetic cothin+ that ets shall not
7e 'orn, such as$
% Acetate
% &yon
% Poyester
% Poy(ro(yene
% S(an"e5.
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2 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Arc F%ash Rate$ PP*
Reuire" iniu cothin+$
% &on-etin+, faa7e ateria,
% Fa7ric 'ei+ht of at east >.< o!/y".
PP ust aso (ro)i"e
arc fash (rotection$
% Face shie"
% Ko)es, etc.
Photo co(ients of
Sais7ury ectrica Safety :.:.C.
5i$ C%i 1//; C tt C% thi
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3 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
5i$eo C%ip " 1//; Cotton C%othin
5i$ C%i ! P % t C tt C% thi
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PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
5i$eo C%ip ! " Po%esterCotton C%othin
5i$ C%i ) FR C% thi
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! PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
5i$eo C%ip ) " FR C%othin
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) PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
#ncreases e)e of (rotection.
May 7e i+hter than a sin+e
hea)y +arent.
Manufacturer ust (ro)i"e
the ne' co7ine" arc ratin+
affor"e" 7y ayerin+.
FR C%othin Can e Laere$
Photo co(ients of
Sais7ury ectrica Safety :.:.C.
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+ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
4e the su((ier that you nee"
arc fash rate" PP an" cothin+.
PP ust ha)e soe resistance to$
% Fae
% #+nition
% Metin+.
o7tain PP fro a 1no'n an"
truste" su((ier.
&hen Purchasin PP*
-ot all &! clothing is tested to S/M &(0%
Photo co(ients of
Sais7ury ectrica Safety :.:.C.
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, PB/RH -- March 3, 2009
Topic ! " PreventionTopic ! " Prevention
,
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- PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Tas9s 4ith Potentia% for Arc F%ash
O(eratin+ a s'itch or circuit 7rea1er
#nsertin+ or reo)in+ a circuit 7rea1er
O(enin+ an encosure "oor Reo)in+ a co)er I7ote" or hin+e"J
4estin+ for )ota+e
1n each tas2
Worer is interacting with energi3ed e4uipment.
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!/ PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Con"uct a Fash Ha!ar" Anaysis to "eterine the
Fash Protection Boun"ary
#nci"ent ner+y e5(osure
4y(e an" arc ratin+ of PP
1f wor must be done on or near
energi3ed electrical e4uipment5
identify the potential for arc flash.
Arc F%ash Ha'ar$ Ana%sis
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!1 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Re"uce the faut cearin+ tie.
Re"uce the short-circuit current.
#(ro)e eui(ent aintenance.
C7TRLL#7E ARC FLASH HAZARDS
At the Source
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!2
@se fash-resistant eui(ent.
PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
C7TRLL#7E ARC FLASH HAZARDS
At the Source
4hese "isconnect s'itch-(u+s ha)e 7een
"esi+ne" 'ith 7uit-in fash-(rotection.'hotos courtesy of Meltric 6orporation
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!3 PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
#ncrease the 'or1in+ "istance.
Re"uce the ener+y e5(osure.
@se hin+e" "oors instea" of 7ote"
"oors to eiinate the ris1 of 7ots
fain+ into the (ane.6or1 "e-ener+i!e".
C7TRLL#7E ARC FLASH HAZARDS
A%on the Path
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! PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
ner+i!e" eectrica 'or1 (erit
Barriers
4rainin+ an" s1is
?o7 7riefin+s
PP
4oos
C7TRLL#7E ARC FLASH HAZARDS
At the &or9er
Photo co(ients of
Sais7ury ectrica Safety :.:.C.
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!! PB/RH -- March 3, 2009 Arc Fash Ha!ar"s -- Construction Safety Association of Ontario
Prevention Su00ar
. #ncu"e ectrica Safety in your Occu(ationa
Heath an" Safety Mana+eent Pro+ra.
2. @se an eectrica 'or1 (erit syste.
3. Con"uct re+uar eui(ent aintenance an" a7eeui(ent that (oses a fash ha!ar".
>. Confir sin+e-ine "ia+ras for accuracy an"
a)aia7e faut current.
<. Maintain "ocuentation (rocess.
8. Pro)i"e trainin+ an" *o7 7riefin+s.
. Con"uct (erio"ic safety au"its.
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ARC FLASH HAZARDSARC FLASH HAZARDS
It is ALWAYS preferable to work on
de-energized equipment.