Arc Flash Elektrik, Arc Blast, e Emergency Switchgear Toowɗo Voltage¶

So tawii ŋakkeende kuuraa walla cirkowol faɗo-to-fase waɗii e nder laylaytol gollordu fasaaji tati toowɗi, e nder nokku njulaagu 480 volt (MCC), e nder laylaytol (vault) transformateur utility, walla e nder laylaytol (substation) toowngol, kulhuli ɗii ngonaa tan e jolngo kuuraa e nder koppi andsi puccu. So tawii ƴulɓe ɓuuɓɗe, ƴulɓe multimeeteer ɓuuɓɗe, rogere, ƴulɓe ɓuuɓɗe, walla ƴulɓe ɓooyɗe jokkondirii e busbaruuji ɗiɗi semmbeeji, henndu hakkunde ƴulɓe ina ionize e nder ƴulɓe plasma ƴulɓe. E nder ko famɗi fof 0,01 haa 0,1 leƴƴannde (feccere e ɓuuɓri gite), ujunnaaje ujunnaaje ampereeji ɓuuɓɗi ina njirloo e nder weeyo ngo, ina mbaɗa ɓuuɓol kuuraa ngol ina yettoo haa 19 400 degere Celsius (35 000 degere) ko ɓuri nguleeki weeyo dow naange.

E 19 000 degere Celsius, busuuji njamndi e aluminium tiiɗɗi ɗii ɓuuɓtataa tan ; ɓe ɓuuɓtoo ɗoon e ɗoon haa ɓe mbaɗta arc blast ɓurɗo toowde. Njamndi tiiɗndi ina yaaji 67 000 laabi e nder njuuteendi nde ndi ɓuuɓnata gila e njamndi tiiɗndi haa e ɓuuɓol ɓurngol toowde, ina waɗa ɓuuɓol ɓuuɓngol ɓurngol 165 desibel e teemedde kilopaskal ɓuuɓol ngol fuɗata dame kaɓirɗe njamndi teeŋtuɗe e dow ŋoral mum en, ɓuuɓnata dame kaɓirɗe njamndi teeŋtuɗe e dow ŋoral mum en toɓɓe njamndi mboɗeeri e ko ɓuri 300 meeter e leƴƴannde (700 kiloomeeteer e waktu), e huɓɓude limce golle sintetik ɗe ngalaa arc-rated e nder palastik ɓuuɓɗo e dow ɓalndu ñawɗo oo. Anndude ko waɗi a fotaani meeɗde meemde ñawɗo mo haa jooni ina ɓuuɓtoo e panneel semmbinaaɗo tawa alaa ko woni e mum so wonaa jokkere enɗam walla jokkere enɗam, hol ko waɗi ɓuuɓri sintetik e ɓuuɓri poliyester ina ɓuuɓtoo e nder ɓalndu e nder ɓuuɓri arc, e no njuɓɓinirta ɓuuɓri gonndi e nguurndam.

Waɗde ɗum jooni¶

1. WOTO MEƊƊU nanngude gollodiiɗo maa e juuɗe maa walla naatde e kaɓirgal kuuraa udditiingal tawa jolngo ngoo ina waawi jogaade semmbe haa jooni. Ko adii nde ɓadto-ɗaa jolngo ngo les e nder suudu jolngo walla e nder laylaytol, jolnu jolngo jolngo mawngo, jolnu jolngo jolngo mawngo, jolnu jolngo jolngo ngo, jolnu butoŋ jolngo jolngo ngo hook (hot stick)** ngam fawde 6icfcfo 6aleejo oo e busbars semmbe; larugo jolngo kuuraa.
2. Smother ɓuuɓɗo comci ɗoon e ɗoon ("Stop, Drop, and Roll" walla drench e ndiyam TAN caggal nde ɓiɗɗo oo laaɓi haa laaɓi e kaɓirɗe kuuraa nguurndam). Hoto meeɗ ɓuuɓnude ndiyam walla ɓuuɓnude foam feewde e panneel kuuraa udditirɗo semmbe (ko ɗum jogori waɗde dow tristream caggal arc maayɗo). So tawii ñawɗo oo yaltii e nokku ɗo kuuraa woni ɗoo, ɓuuɓna comci ɓuuɓɗi ɗii e ndiyam ngulɗam walla ɓuuɓna ɓuuɓol ngol e ɓuuɓri wootere/koton.
3. Noddu limoore njuɓɓudi nokku maa (911 to leyɗeele dentuɗe Amerik e Kanadaa, 112 e nder Dental Orop, 999 to Dental Dowlaaji Amerik) ɗoon e ɗoon. Haaldu e neldoowo oo wonde ɓurɗo ɓuuɓde e ɓuuɓde arc electricité industriel waɗii, hollu ɓuuɓol ngol (yeru, 480 voltst ballal e30). safrooɓe ngam waawde naatde e ɓernde, ɓuuɓri nguleeki tiiɗndi, e ɓuuɓri foofaango e laawol henndu ; lartol limooje caɗtuɗe.
4. Ƴeewto fooftere e pulse ɗoon e ɗoon so tawii ñawɗo oo wonii e leydi kisal, e waɗde Defibrillator Automated External (AED) e nder hojomaaji 2. So tawii ñawɗo oo jaabaaki, foofaani no haanirta nii, fuɗɗoo ɓuuɓnude ɓernde ɗoon e ɗoon, jokkondira e AED so o arii ; soklaaji mbayliigu ina keewi saabaade fibrillaasiyoŋ ventrikulaar baawɗo wayleede e soklaaji defibrillator e sahaa mum ; larugo CPR.
5. Flash arc cooyɗo ina wuli e ndiyam cooyɗam ɓuuɓɗam fotde hojomaaji 20, kono WOTO MEƊƊU ƴettude comci walla mbaydi sintetik ɓuuɓndi ndi ɓuuɓnaaka e ɓalndu ɓuuɓndu. Taƴu e saraaji comci arc-rated charred walla mbaydi ɓuuɓndi huutoraade siiseeji trauma e accude huunde jokkondirnde e nokku ngam ittude burn center at; larugo ɓuuɓri tiiɗndi e ɓuuɓri kemikal.
6. Ƴeewtaade daande ñawɗo oo e foofaango mum ko juuti ngam ƴeewde so tawii ko ɓuuɓri jaawndi (inhalation airway burns). Foofde plasma ɓuuɓɗo no feewi e ɓuuɓri njamndi/ozone tookeeri e nder ɓuuɓri arc ina ɓuuɓna ƴiiƴam e ƴiiƴam ; so tawii ñawɗo oo ina jogii sooyre e hunuko, ina wondi e ɓuuɓri yeeso, ina wondi e ɓuuɓri, walla ina wondi e ɓuuɓri (stridor), jooɗo-ɗaa ɗum e dow 45 degere (so tawii ko e hakkille, ina selli e ɓalndu) ngam leeltinde uddugol laawol henndu ngol ina waawi warde nguurndam haa safrooɓe mbaawa waɗde intubation.

flowchart TD
    Start["Arc Flash Elektrik, Arc Blast, walla Emergency Switchgear"] --> SceneSafe{"Mbele ñawɗo oo ina memi haa jooni walla ina woni e nder panneel semmbe?"}
    SceneSafe -->|"Eey: Memde Busbaruuji / Panel Nguurndam"| DeEnergize["1. WOTO memmu ɓiɗɗo gorko e juuɗe ɓutte<br/>2. Jaɓɓungal dow taƴoowo mawɗo / fiyde butoŋ Shunt-Trip to woɗɗi<br/>3. WALLA pullo ñawɗo laaɓɗo huutoraade jokkorgal hisnude fiberglass insulated voltage-rated"]
    SceneSafe -->|"Alaa: Wertaa laaɓɗo e Panel"| DragClear["Drag victim yaltude e cumu-heewngu electric vault so tawii ko kisal e busbars peeñɗi nguurndam"]
    DeEnergize --> Extinguish["Mumtu comci ngulɗi CAGGAL nde ñawɗo oo laaɓi e kaɓirɗe kuuraa<br/>(WOTO MEƊƊI fiyde ndiyam e nder switchgear nguurndam)"]
    DragClear --> Extinguish
    Extinguish --> CheckLife{"Mbele ñawɗo oo ina anndi, ina foofa no haanirta nii ?"}
    CheckLife -->|"Alaa: Jaabaaki / Foofaani"| CPR["1. Fuɗɗoraade CPR ɗoon e ɗoon (30:2 walla ɓuuɓri jokkondirndi)<br/>2. Waɗde paddorɗe AED (ɓurtu ɓalndu yoorndu / nokku mo woɗɗaani eschar charred so ina haani)<br/>3. Hokkude shock so tawii ko AED wasiyii"]
    CheckLife -->|"Eey: Fooftere"| AirwayBurn["1. Ƴeewto ɓuuɓri gonndi e laawol henndu (daande ɓuuɓnde, stridor, soot e nder hunuko)<br/>2. Burns cooyɗo e ndiyam cooyɗam ɓuuɓɗam fotde 20 min (WOTO peeltu comci ɓuuɓɗi)<br/>3. Ƴeewto ngam ɓuuɓri ɓuuɓndi, noppi ɓuuɓɗi, e ɓuuɓri ɓalndu"]

Faamde fisik ɗiɗaɓo : Arc Flash vs Arc Blast¶

Heewɓe ina njiyloo shock electric (ɗo jolngo kuuraa rewata e ɓanndu neɗɗo sabu neɗɗo memi jolngo semmbe) e arc flash e arc blast (to jolngo arc rewata e henndu hakkunde jolɗe faɗo walla ummoraade e faɗo haa e leydi, yaltina pressure an blinding wavesill radiant that he 3 haa 6 meeteer / 10 haa 20 meeter hay so ɓe meeɗaa meemde wire).

Haawnaaki tawa won e puccitagol arc flash ɓurngol bonde e warde ina waɗa wonaa e dow tooweeki 100 000 volt, kono ko e dow 480 volt walla 600 volt e panneeji peccitagol gollorɗe fasaaji tati ñamlaaɗi e mbayliiguuji mawɗi step-down, sabu doole gonɗe heen ɗee ina mbaawi ɓurde ɓuuɓde (imsemen the breamen) ko relayuuji toowɗi:

1. Ɓoornugol Arc (Nguurndam nguleeki to 19 400°C / 35 000°F)¶

So arc kuuraa sosiima e nder luggere hakkunde busbaruuji 480 volt walla 13,8 kilovolt, doolnugol kuuraa henndu iyon ina wayla megawatt doole kuuraa to bannge semmbe kuuraa (infrared, visible, e plasma a superviolet light) e semmbe kuuraa gonɗo e henndu iyon.

• Semmbe nguleeki keso (fotde e kaloriiji e kala santimeeteer kaaree, \(\text{cal/cm}^2\)): E nder NFPA 70E (Standard ngam kisal kuuraa e nder nokkuuji golle), semmbe keso ko tan **$1.2\text{ cal/cm}^2% e ci ɓuuɓol fotde leƴƴannde 1, ina heddinoo ngam saabaade ɓuuɓri degere ɗiɗmere (feccere-tekkeendi) e dow ɓalndu ɓuuɓndu.
• Arc switchgear 480 volt mo ustaani, 45 santimeeteer (18 inch) ummoraade e ɓalndu elektirik ina heewi yaltinde 8 haa ko ɓuri \(40\text{ cal/cm}^2\) e nder ko famɗi fof leƴƴanɗe 0,2, e oon sahaa ina karbonisa polister walla cotont mo reenaaka.
• Ko waɗi comci sintetik (poliyester, naylon, spandex, polipropileen) ina mbaɗa catastrophique: Hay so golloowo ɓoorniima comci yaajɗi ɗi ɓuuɓnataa (FR), so ɓe ɓoorniima comci sintetik gaadoraaɗi ɗi ɓuuɓnata ndiyam walla comci naylon ɗi ɓuuɓnata les mum ɗii, semmbe kewu nguu ina yalta ɓuuɓnaaka e wutte), nguleeki ɓuuɓki ɓurki heewde ina ɓuuɓna poliyester sintetik oo e 250 degere Celsius (480 degere Fahrenheit), waɗta ɗum napalm ɓuuɓɗo, ɓuuɓnoowo haa e nder ɓalndu.

2. Arc Blast (67 000x ɓuuɓol njamndi e ɓuuɓol ɓurngol mawnude)¶

Simultaneously with the blinding thermal flash, the intense current vaporizes the solid copper or aluminum busbars and rapidly heats the air inside the steel switchgear enclosure:

• The 67,000-to-1 phase expansion: Compare water (which expands 1,600 to 1,700 times when flashing to steam) with solid copper, which expands 67,000 times in volume when vaporized by an electric arc.
• Supersonic shrapnel and overpressure: This instantaneous expansion creates a blast pressure wave exceeding 50 to 100 kilopascals (1,000 to 2,000 pounds per square foot) on the inside of the cabinet door. Bolted steel panel covers shear their latches and fly across the room like guillotine blades; molten droplets of copper and silver contact metal spray outward at over 300 meters per second (700 miles per hour), embedding in skin and eyes; and the 140-to-165-decibel acoustic shockwave ruptures both tympanic membranes (eardrums) instantly while throwing the worker backward against concrete walls or machinery.

Step-by-step rescue in a switchgear room or substation¶

Phase 1: Scene safety and energized victim extrication¶

When an arc flash booms inside an electrical room, the air instantly fills with dense, acrid black and gray smoke composed of vaporized copper oxide, burned epoxy insulation, and ozone. Often, the upstream main breaker trips open in milliseconds, but you must never assume the panel is dead:

• Even if the branch breaker tripped, the incoming line-side lugs and top busbars inside the cabinet remain energized at full utility voltage (480V, 4,160V, or 13.8kV).

• In addition, large industrial power-factor-correction capacitor banks and uninterruptible power supply (UPS) DC battery strings store lethal electrical charges for several minutes even after the utility main breaker is opened.

• Trip the upstream feeder or remote Emergency Power Off (EPO) button first: Look outside the electrical room door or at the main service entrance for a remote Emergency Power Off (EPO) mushroom button or upstream main breaker and trip it immediately.

• Use a voltage-rated insulated fiberglass rescue hook (Body Rescue Hook): Every high-voltage electrical room and substation should have a bright yellow or orange insulated fiberglass rescue hook (typically 1.8 to 2.4 meters / 6 to 8 feet long, rated and tested for 45 to 75 kilovolts) mounted on the wall by the exit door.
• Stand on dry ground or an insulating rubber switchboard mat outside the arc flash boundary.
• Slip the wide C-shaped fiberglass hook around the victim's waist, chest, or under their armpits and pull them steadily backward away from the switchgear cabinet until they are in a clear, safe corridor.
• Woto meeɗ huutoraade tuuba njamndi, ɓuuɓri leɗɗe ɓuuɓndi, walla ɓoggol naylon ngam ustude mboros oo e kaɓirɗe toowɗe ɓurɗe 600 volt ; e voltaaji hakkundeeji e toowɗi, doole doole ina njillondiri ɗoon e ɗoon les leɗɗe ɓuuɓɗe walla ɓoggol dirtungol.
• Huutoro tan ko ƴulɓe Class C ɗe njiyataa (CO2 walla Dry Chemical) so tawii ƴulɓe kuuraa ina wuli: Woto meeɗ ɓuuɓnude ƴulɓe ndiyam ɓuuɓɗe kaalis, ƴulɓe foam Class A, walla ƴulɓe yiite e nder lowre kuuraa haa nde utility-gner timmi.

Faandaare 2 : Wuurtinde ɓernde ko yaawi (CPR e AED)¶

Soklaaji kuuraa toowɗi e fasaaji tati e nder gollorɗe ina mbara ɗoon e ɗoon rewrude e arrêt cardiaque (fibrillation ventriculaire walla asystole ventriculaire) walla arrêt respiratoire central (paralyse tetanique du diaphragme ou stunning du centre respiratoire du tronc cerebral). Sabu wonɓe e aksidaaji kuuraa e nder nokkuuji golle ko mawɓe celluɓe ɓe ɓerɗe mum en ngoppi tan ko e ustaare ritme kuuraa tawa wonaa e ƴiiƴam koronaawiris ɓuuɓɗam, **fartaŋŋe nguurndam maɓɓe ina mawni no feewi so tawii CPR e AED defibrillation puɗɗiima e minutes5:

1. Ƴeewtaade jaabawol e fooftere no haanirta nii ko ɓuri leƴƴanɗe 10: So tawii ko ñawɗo oo yalti e mboros elektirik, tappu e junngo mum, ƴeewaa ɓanndu mum. Yejjite ɓuuɓri juutndi, ndi alaa ɗo haaɗi, ndi ɓuuɓri (agonal gasps), ndi woni maande ɓuuɓri ɓernde, wonaa fooftere no woorunoo.
2. Fuɗɗoraade ɓuuɓnude ɓalndu ɗoon e ɗoon (100 haa 120 e nder hojomaaji, 5 haa 6 santimeeteer / 2 haa 2,4 inch luggiɗde): Puɗɗorgal tiiɗngal e yaawre e nder hakkunde ɓalndu ; so tawii ko jannginaaɗo, rokka 30 ɓuuɓri rewi heen ko 2 fooftere hisnude (haa teeŋti noon so tawii soklaaji ɗii ngaddii ɓuuɓri fooftere adannde tawa ɓernde ina jogii haa jooni ɓuuɓri ɓuuɓndi) ; larugo CPR.
3. Waɗde defibrillateur externe automatique (AED) e dow ɓalndu ɓuuɓndu:
4. Taƴu udditaa walla ittu yeeso limce/coverall ñawɗo oo e siiseeji trauma.
5. So tawii ɓalndu nduu ina waɗi arc flash burns walla blisters, eto waɗde paɗe ɗiɗi AED gonɗe e ɓalndu nduu e dow ɓalndu nduu, ndu ɓuuɓnaaka, e nder nokku ɗo ɓalndu nduu woni ɗoo (ɓurɗo toowde ñaamo les ƴiyal ɓalndu, les ɓalndu nano les ƴiyal ɓalndu) walla e nder anterior-posterior ( yeeso-e-caggal of.) nokku ɗo ɓalndu nduu woni burne Kono so tawii ɓalndu nduu fof ina wuli, waɗde paddorɗe AED ɗee to bannge ɓalndu ɓuuɓndu nduu no fotiri fof, rokkude jolngo defibrillaasiyoŋ hisnoowo nguurndam ngam haɗde fibrilaasiyoŋ ventrikulaar sahaa kala ina ɓura ɓuuɓri ɓalndu.

Daawe 3 : Njuɓɓudi ɓuuɓri gonndi e ƴiiƴam e ɓuuɓri ɓalndu plasma¶

So tawii ñawɗo oo ina foofa, ina jogii pulse, ɗoon e ɗoon hakkille maa ina wayloo e laawol fooftere toowngol e ɓuuɓri nguleeki luggiɗndi:

1. Anndude e darnde ngam ɓuuɓri ƴiiƴam ɓuuɓɗam¶

So golloowo ina darii e yeeso kabine udditirɗo e nder ɓuuɓol arc, ɓuuɓol ngol ina heewi doole mum en ɓuuɓde no feewi no ruulde plasma 19 000 degere e oksidaa njamndi mboɗeeri ɓuuɓndi fiyirta yeeso mum en nii :

• Maandeeji jeertinaango laawol henndu udditiingol: Leppi ɓuuɓɗi walla ɓuuɓɗi, sooynde nder hunduko walla nofru, gite ɓuuɓɗe e gite ɓuuɓɗe, daande ɓuuɓnde walla ɓuuɓnde, ɓuuɓde sahaa kala, caɗeele muusde ƴiiƴam., walla **high-pitched whenhador crowing (s)
• Ko waɗi minit kala ina limtee: Ɓuuɓri nguleeki e kemikal nder reedu e ƴiiƴam ina addana ɓuuɓri ndiyam mawndi (edema) baawndi siifde haa timma ƴiye daande udditaaɗe e nder hojomaaji 15 haa 45, ɗum noon hay ɓuuɓri suudu safrirdu ina waawi waɗde tawa alaa laawol henndu (cricothyrotom).
• Golle ko yaawi: Waɗde ñawɗo mo anndi, foofoowo, mo tuumaama ina wondi e ɓuuɓri ƴiiƴam jooɗiiɗo ina tiiɗi e 45 haa 90 degere (so wonaa tawa ina jogii tuumaaɗo ɓuuɓri ɓalndu ngam werlaade caggal, e nder ɗuum, ɓuuɓna hoore alluwal ɓalewal seeɗa dow so ina waawi). Teddeendi ina usta ɓuuɓri ndiyam e nder wuddu e daande. Hoto meeɗ rokkude hay huunde ñaamde walla yarde, kadi jeertin safrooɓe ɗoon e ɗoon so ngarii mbele ina mbaawa seerndude laawol henndu ko yaawi.

2. Ballal gadanal ngam arc flash burns e comci ɓuuɓɗi¶

1. Loowde ɓalndu ɓuuɓndu e ndiyam ɓuuɓɗam, ɓuuɓɗam, ɓuuɓɗam fotde hojomaaji 20: Huutoroo ndiyam laaɓɗam (15 haa 20 degere Celsius / 59 haa 68 degere Fahrenheit) ngam yaltinde nguleeki suuɗki nanngaaɗi e nder laylayti ɓalndu luggiɗndi e dartinde necrosisve ; ƴeew ina wuli.
2. Haɗde hipotermi e ɓuuɓri mawndi: So tawii lampaaji arc ina wuli ko ɓuri 15 haa 20 e nder teemedere e nder teemedere (Total Body Surface Area) ñawɗo oo (TBSA), ɓuuɓna ɓuuɓri ndii seeɗa ngam mumtude nguleeki, caggal ɗuum ɓuuɓna ñawɗo oo e dow laylayti laaɓɗi, joorɗi steril e warmn ; ndiyam ngulɗam juutɗam ɓuuɓɗam e dow nokkuuji ɓalli jaajɗi ina addana ñawɓe mboros burn shock ɓuuɓde.
3. WOTO MEƊƊU ɓoornaade comci sintetik ɓuuɓɗi walla comci ɓuuɓɗi jokkondirɗi e ɓalndu: Huutoraade siiseeji trauma, taƴtu comci loowɗi e saraaji ɓuuɓri ndii, accu kala ɓuuɓri gonndi e ɓalndu ndi ɓuuɓnaaka e dow leeso gaañiiɗo oo.
4. Ittu denndaangal cirƴe njamndi, waktuuji juuɗe, cirƴe, e bottaaje ɗoon e ɗoon: Juuɗe, cirƴe, e koyɗe ɓuuɓɗe ina ɓuuɓta haa ɓurta laabi ɗiɗi e nder hojomaaji 30 caggal nde ɓuuɓri walla ɓuuɓri toowndi ; bannge dewgal heddii e junngo ɓuuɓngo wonta tuugnorgal ɓuuɓngal, saabotoongal gangrene e taƴgol.
5. Wurtu ɓuuɓol ngol e nder filmo laaɓɗo (lelaaɗo e njuuteendi) walla e leppi sterile joorɗi: Woto waɗtu ɓuuɓol arc flash e ɓuuɓri, ɓuuɓri, ɓuuɓri gollorɗe, walla ice. Lelnude limce laaɓtuɗe e nder galleeji e dow ɓuuɓri cooyndi ndii (meeɗaa ɓuuɓde e tergal e nder taarik, ko ɗum ustata ɓuuɓri) ngam haɗde ɓuuɓol henndu, ko ɗum ustata no feewi mette ɓuuɓri, e jogaade ɓuuɓri laaɓndi haa nde ari e nokku ɓuuɓri diiwaan.

Faandaare 4 : Bonnugol ɓalndu toowndu nder suudu suuɗndu (Sindrome de compartiment)¶

So tawii ko goonga jolngo toowngo rewi ko e juuɗe walla koyɗe elektoronik (ko jiidaa e lampa arc yaajka), ciftoren "Principe Iceberg" jolngo toowngo:

• Sabu ƴiiƴam ina jogii semmbe kuuraa ɓurɗo toowde e kala ƴiiƴam e nder ɓanndu, kuuraa yahoowo dow junngo ina ɓuuɓna ƴiiƴam humerus, radius, e ulna luggiɗɗam haa nguleeki ɓurtuki, coofgol ƴiiƴam luggiɗɗam ɗam njuumri e ƴiiƴam ɗam gila e nder mum haa yaasi tawi ko ɓalndu nduu ina waawi ƴeewde no fotiri e for gaañiiɓe yaltude e junngo e koyngal.
• E nder waktuuji seeɗa, oon ɓalndu luggiɗndu coofndu ina ɓuuɓta e nder ɓalndu mum ɓuuɓndu, ndu ɓuuɓnataa (syndrome du compartiment aiguë) , ina yaltina myoglobin keewɗo boɗeejo-boɗeejo e nder ƴiiƴam, ina wayla ƴiiƴam ñawɗo oo ina wonta ɓaleejo ɓaleejo ("ca-colored urineuney" ŋakkeende; ƴeew ɓuuɓri ɓuuɓri e sindrom kompañi.
• Woto meeɗ accude golloowo mo mboros oo heɓi e mum oo, walla mo mboros oo heɓi oo, "walk it off" o hoota galle, hay so tawii ɓe mbeltiima caggal hojomaaji 10 ; kala jokkondirɗo e voltage toowɗo walla arc flash wuurɗo ina ɗaɓɓi telemetrik ɓernde safrirde, ƴeewndo ƴiiƴam serum creatine kinase (CK), ƴeewndo ƴiiƴam, e ƴeewndo ɓuuɓri seppo.

Faandaare 5 : Ɓooygol ɓuuɓol akustik, ñawanɗe UV gite, e doggol ɗiɗmol¶

Gaagaa ɓuuɓri ɓernde e ɓuuɓri ɓalndu, fisik doolnuɗo e ɓuuɓri arc ina addana gaañanɗe tati ceertuɗe ɗiɗmere, ɗe njiɗi ko toppitaade to bannge nokku :

1. Noppi ɓuuɓɗi (perforation de la membrane tympanique) e disorientation concussive: Sabu ɓuuɓol arc industriel ina addana ɓuuɓol 140 haa 165 desibel e nder nokku ɗo ɓuuɓol ngol woni ɗoo, elektiriyanke ɓuuɓɗo mo wuuri e ɓuuɓol ngol ina heewi wonde s**tempore light gila e ɓuuɓri noppi gooto walla ɗiɗi ɗii fof, e muusde ɓuuɓri (vertigo) tiiɗndi ummoraade e barotrauma nder noppi. Haaldu seeɗa e gite laaɓtuɗe e gite gonɗe e ñawɗo oo, huutoroo geɗe juuɗe ngam deeƴnude ɗum, mbaɗtaa heen ɓuuɓri ɓuuɓndi (sterile) ɓuuɓndi e dow yaasi noppi ɓuuɓɗi (woto meeɗ paccude ɓuuɓri e nder ɓuuɓri noppi walla werlaade ndiyam e nder noppi).
2. Fotokeratitis ultraviolet ("Arc Eye") e ɓalli jananɗi njamndi mboɗeeri: Annoore ultraviolet tiiɗnde e ɓuuɓri toɓɓe njamndi mboɗeeri ina ɓuuɓna dow gite so tawii kaɓirgal yeeso arc-rated electricien ngal ɓuuɓnaama dow walla k. So tawii ñawɗo oo habrii wonde ina wondi e ɓuuɓri "sanngara ɓuuɓɗam e nder gite", gite ɓuuɓɗe, walla ɓuuɓri annoore mettunde, woto **ɓurtu gite ɗee; uddude gite ɗiɗi ɗee no feewi e paɗe ɓuuɓɗe, ɓuuɓɗe, ɓuuɓɗe (walla ɓuuɓri gite tiiɗndi so tawii feccere njamndi naatii e globe) haa doktoor gite ƴeewtoo ɗe ; ƴeew gite huunde janane, abrasion korneel, e flash welde.
3. Fuɗɗugol ɓalndu e ñawu ngaandi mbonngu ummoraade e werlaaji pucci: So tawii ɓuuɓol ɓurngol heewde ngol werlii gollotooɗo oo e dow ŋoral fiberglass, e dow ŋoral transformer toowngal, walla caggal e nder ŋoral beton luurondirngal, jogoo in-line cervical spine stabilization e junngo tawa ina ƴeewtoo laawol maɓɓe weeyo e brea; ƴeew gaañiiɓe e ɓalndu be gaañanɗe hoore.

Doggol ƴeewndo kisal switchgear e PPE¶

Ko adii nde udditataa kala kaɓirgal kuuraa gollorɗe, nokku toppitiiɗo mooftirgel, walla nokku ɗo mbaylaandi (transformateur) woni ngam ƴeewde caɗeele walla waylude, hoolkiso ɗeeɗoo caɗeele kisal nguurndam NFPA 70E / HSE HSG85 :

• Sosde Sarɗi Golle Kisal Elektrik (De-energize e Lockout/Tagout kala nde waawi wonde): E nder NFPA 70E e sariyaaji kisal kuuraa hakkunde leyɗeele, golle kisal kuuraa nguurndam ina haɗaa so wonaa tawa de-energizing ina addana en baasal ɓurngal mawnude (hono uddude ballal nguurndam fannu walla ventilaasiyoŋ). Waɗde sahaa kala Fooyre-Ko adii-Memde ("Wuurde-Maayde-Wuurde"): ƴeewndo voltmeeter maa CAT III / CAT IV toɓɓere e dow ƴoogirde nguurndam anndaande, ƴeewndo busbars target fasaade-fase e faɗo-to-leydi ngam hoolkisaade volt zero, kadi ƴeewndo meeteer maa e dow ƴoogirde anndaande nde alaa ɗo haaɗi.
• Janngu Lefol Jeertinaango Hakkille Arc e ɓoorno PPE Arc-Rated (AR) nannduɗo: Ƴeewto lefol kabine ngam Woɗɗude Keeri Arc e Semmbe Keɓe (\(\text{cal/cm.}^2\)) e woɗɗude golle (walla PPE Category 1 haa{\(c}te, tuggi{\)^l}te FR limce/pantalon/kaɓirgal yeeso haa \(40\text{ cal/cm}^2\) limce keewɗe, limce e jacket), ɓeydi heen kadi gannde ɓuuɓɗe ɗe kaɓirɗe ɓuuɓɗe, ɗe ɓuuɓɗe ɓuuɓɗe, ɗe ɓuuɓɗe ɓuuɓɗe, ɗe ɓuuɓɗe ɓuuɓɗe, ɗe ɓuuɓɗe ɓuuɓɗe (kanal-insert torum earplugs).
• Zero sintetik les e zero conductive jewelry: Ɓorno-ɗee 100 e nder teemedere cotton, wutte, walla arc-rated base layers les FR, meeɗaa poliyester, naylon, walla spandex atletik limce walla limce les, e ittude denndaangal njamndi njamndi, waktuuji, mefratal-rings,.
• Darto e bannge ŋoral e wirnude yeeso maa nde racking taƴooɓe walla werlaade leppi seerndude: So racking moteriiji to woɗɗi walla jokkorgal remote jolnaaka, dara e bannge ŋoral damal kaɓirgal njamndi udditiingal (kuutoragol junngo maa nano so lefol ngol woni ko e bannge ñaamo, so complete the way of-pen e damal), ƴeew, werloo switch oo e yaawre e dille goote pellital.
• Stage fibreglass rescue hook e AED yaasi Arc Flash Boundary: Ko adii nde mbaɗata mbayliigu semmbe toowngu walla jarribo absence-voltage, waɗde hook hisnude ɓanndu fibreglass-rated e AED e nder jokkorgal ɗoon e ɗoon mo neɗɗo dedicated kadi fullraring kisal PPE standby.

Naamne keewɗe naamneede¶

Hol no lampa arc électrique waawirta ustude neɗɗo mo meeɗaa hay meemde ɓoggi ɗii ?¶

Arc electric flash ina waɗa so tawii jolngo toowngo ina diwa e henndu hakkunde jolɗe faɗo ɗiɗi walla ummoraade e jolngo haa e kaɓirɗe njamndi mboɗeeri (yeru, so kuutorgal ina ɓuuɓtoo, duƴƴe/ɓuuɓri ina ɓuuɓtoo e insulator, walla so jolngo ina ŋakki e udditde). Arc kuuraa ina wayla henndu nduu e pilaasma haa yettoo 19 400 degere Celsius (35 000 degere Fahrenheit) e ɓuuɓnude busbaruuji njamndi tiiɗɗi ɗii, waɗta ɗum en ruulde pilaasma yaajnde no feewi. Ndeeɗoo puccu ina yaltina semmbe nguleeki tiiɗki, ina ɓuuɓna plasma e njamndi mboɗeeri, ina ɓuuɓna e nder suudu nduu fotde meeteeruuji keewɗi, ina addana kala dariiɗo e nder keeri Arc Flash Boundary, ɓuuɓri tataɓiri, hay so tawii noon meeɗaa meemde feccere semmbe.

Hol ko waɗi ina bonna ɓoornaade comci poliyester walla comci jimɗi ɓuuɓɗi e les comci golle ɗi ɓuuɓnata yiite (FR) ?¶

Koɗki yaajki ɓuuɓki e arc-rated (AR) ina mbaɗee ngam char e mumtude hoore mum tawa ɓuuɓnataa so tawii ko e nguleeki juutki, tiiɗki, ɓuuɓki arc. Kono tan nguleeki ɓurtuki ina waawi rewde haa jooni e mbaydi yaajndi, walla naatde e kolce udditiiɗe, haa yettoo les mum. Fiɓnde sintetik ko wayi no poliyester, naylon, polipropileen, e spandeks ɓuuɓnataa ; ɗe ɓuuɓta e nder pilastik ndiyam ɓuuɓɗam, ɓuuɓɗam, fotde 250 degere Celsius (480 degere Fahrenheit). So tawii limce walla limce sintetik ina ɓuuɓtoo e ɓalndu walla e ŋoral gollotooɗo e nder lampa arc, palastik ɓuuɓɗo oo ina fusa haa juuta e nder ɓalndu ɓuuɓndu nduu, ina wayla ɓuuɓri dowri ndi wuurataako, wonta ɓuuɓri seppo timmundi. Waɗde sahaa kala ɓoorno-ɗee 100 e nder teemedere koton naftowal, wootere, walla laylayti baɗɗiiɗi arc-rated les koltu FR.

Hol ko waɗi panneel gollordu 480 volt ina waawi waɗde ɓuuɓol ɓurngol tiiɗde e ɓuuɓol 13 800 volt ?¶

Semmbe halkaare yaltinnde e lampa arc ina fawii e geɗe tati : doole guurɗe, doole guubiliiji (amperage) gonɗi heen ɗii, e ko ɓuri teeŋtude, waktuuji laaɓtuɗi (e milisekon walla leƴƴanɗe) ɗi fiise walla taƴoowo cirkowol dowri ngol ƴettata ngam yiytude boowal ngal, taƴa doole ɗee. Tablo 480 volt fasaaji tati gollorɗi mawɗi jokkondirɗi e jolɗe ɗiɗmere e mbayliigu mawngu ina waawi rokkude 30 000 haa 65 000 ampere doole ɓuuɓɗe, e nde tawnoo ɓuuɓol mawngol arcing e 480 volt ina jogii doole toowɗe ɗe ustata doole magnetic oltre large seeɗa be taƴooɓe, arc ina waawi ɓuuɓde ko juuti fotde leƴƴanɗe 0,5 haa 2 timmuɗe hade taƴoowo oo jokkude yahde, ina yaltina kaloriiji nguleeki keewɗi ko ɓuri relay toowɗo laɓɓinoowo e nder leƴƴanɗe 0,03.

Hol ko waɗi aɗa foti daraade bannge, kuutoro-ɗaa junngo wooto so aɗa werloo ƴulɓe teeŋtuɗe (industrielle) ?¶

So tawii ƴulɓe ɓooyɗe taƴondirɗe walla ƴulɓe mooftaaɗe ina tampina ŋakkeende mekanik walla ƴulɓe faɗo-to-fase e sahaa tigi-rigi mo werloto-ɗaa junngo ngoo, ƴulɓe arc baɗɗe ɗee ina maha doole puccitooje e nder keeri njamndi e nder milisekon. Ndeen ɓuuɓol ina heewi fuɗde damal kaɓirɗe njamndi mboɗeeri udditaa e semmbe walla fuɗde njamndi mboɗeeri e ɓuuɓol feewde e sewnde yeeso kees oo. So a dariima e bannge kaɓirgal ngal (to bannge ŋoral wonaa bannge ŋoral), aɗa yettoo e junngo wooto tawa aɗa reena ɓanndu maa, yeeso maa, e koyɗe maa haa laaɓa cer e laawol damal ɓuuɓngal ngal, e ruttaade yeeso maa hade maa werlaade lefol ngol, aɗa reena ɓanndu maa e ŋoral gadanal ngal so tawii jolngo ngoo yanii.

Ndee ɗoo deftere ina rokka ballal gadanal e humpitooji kisal ngam aksidaaji arc flash e switchgear toowɗi semmbe, tawa lomtinaani NFPA 70E / IEEE 1584 heblo gollotooɓe elektiriik waawɓe walla toppitagol safaara karallaagal. Hiisaade ƴettude ballal gadanal, CPR, e AED seedantaagal to Croix-Rouge, St John Ambulance, walla to diiso kisal nokku.

Ardiiɓe jokkondirɓe¶

• Ballal gadanal jolngo kuuraa e jolngo kuuraa
• Burns e scalds ballal gadanal
• Kulol tiiɗngol e ɓuuɓri kemikal
• Laabi kuuraa njippinaaɗi e kuuraa otooji
• Yitere janannde, abrasion korneel, e flash welde
• Gaññeeje ɓuuɓɗe e sindrom kompañi

Fuɗɗoode ƴeewtaama¶

• Fedde Ngenndiije Dentuɗe ngam Reende Yiite (NFPA, Amerik): Tolno kisal kuuraa e nder nokkuuji golle (NFPA 70E, 2024 Edition: Ƴeewndo Risk Arc Flash, Categoriiji PPE, e golle kisal golle)
• Duɗal Innjiniyankooɓe Elektrik e Elektoronik (IEEE): IEEE ina jokki e waɗde hiisaaji kulhuli arc-flash (IEEE Std 1584)
• Njuɓɓudi kisal e cellal e golle (OSHA, Amerik): Pewnugol, jolngo, e saaktude semmbe kuuraa (29 CFR 1910.269) e golle jowitiiɗe e kisal kuuraa (29 CFR 1910.331 haa 335)
• Executive cellal e kisal (HSE, leydi Angalteer): Elektrik e golle: Golle kisal (HSG85) e reentaade kulhuli ummoraade e laabi kuuraa dow (GS6)
• Fedde Ameriknaare toppitiinde ko fayti e ɓuuɓri (ABA, Amerik): Laabi ballitooji nguurndam ɓuuɓri (ABLS) ngam ñawndude ñawanɗe kuuraa toowɗe, ñawbuuli kompañi, e njuɓɓudi laabi weeyo ɓuuɓɗi