Panelu jant buy tàkk ci kaw kër gi, ay jafe-jafe arc inverter, ak batëri kër buy daw¶

Fotowoltaik jant bu dëkkuwaay (PV) ak Sistemu dencukaay Energie Batëri (BESS) yuñ monte ci garage, ñu koy faral di woowe miir batëri kër wala batëri jant bu kër lëmm, dañuy soppi kër gi joge ci konsomatër kuuraŋ bu dese doole dem ci sàntraalu kuuraŋ buy dox. Doonte sistemu jant bi ak batëri yiñ samp ci anam wu jaar yoon, dañuy dox ci anam wu wóor ci diiru fukki at, waaye dañuy indi ñaari loraange ci wàllu kuuraŋ ak chimik yu wuute lool ak fiil yi ñuy jëfandikoo ci reso utilite yi ci jamonoy jafe-jafe: **defar courant direct bu am voltage bu kawe (DC) saa yu leeraay bi dalee ci batëri bi, ak gaz biy dem ci kaw kër gi, ak gaz biy dem ci kaw kër gi.

Su boroom kër gëne xëcc seen 200-ampère service breaker bu mag ci OFF ci jamonoy lakk buñ miin ci kër gi, bépp fiil bu nekk ci biir kuuraŋ bi dafay dee. Soo amee kër gu am solar, mën nga fay jant bi. Doonte ginaaw boo wëlbati AC Solar Breaker ci sa pano bu mag ba noppi nga fay inverter bi, pano soleer yi ci sa kaw dañuy wéy di defar ** 300 ba 600 volts ci courant direct (DC) ** ba leeralu bëccëg, wala sax pompier yu leer yi ci seen làmp, di leer ci modulu weer yi, fileek sistem bi dafa wàcci). def ngir wàññi voltage toit bi ci suufu 30 volt. Sudee **konektëru fiil MC4 yi jaarul yoon, fiil yiñ sàqami, wala interruptëri isolatëru DC yu corrode dañuy am fault arc DC, courant direct biy wéy di wéy di am voltage bu 3,000 degre Celsius (courant plasma bu 5,400 degre Fahrenhever) seey ci biir kadre pano aluminium ak lakk toit asphalte bardeaux. Ci jamano jooju, sudee garage bi 10 ba 30 kilowatt-waxtu batëri lithium-ion ci biir garage bi dafa am jafe-jafe ci biir selil bu gàtt wala ndox mbënd, dafay génne niir yu dëgër yu weex, xet gu neex gaz yuy tàkk (**hydrogène, monoxide de carbone, ak) bomb fuel-air balaa xal yu ñuy gis di feeñ. Xam ni ñuy dóore bitti PV Rapid Shutdown interrupteur, lu tax doo musa yéeg ci kaw wala sprey hose jardin ci lakk array solar, ak ni ñuy rawale ci saasi su batëri kër hisses wala vents vapër weex muccal dundu.

Defal lii leegi¶

Soo gisee saxaar, leer, wala xal yuy joge ci sa pano soleer yi ci kaw sa kër, boyet inverter bi ci sa kuuraŋ, wala dencukaay batëri lithium-ion ci sa garage wala sa néegu serwiis publik, defal jiroom benn jëf yii ci saasi:

1. BULEEN MUSAA yéeg ci kaw kër gi wala nga diw ci hose jardin ci pano soleer buy tàkk wala inverter: Pano soleer yi ak seen conduit DC bi ci suuf dañuy wéy di am doole ba 600 volt DC saa yu leeraay dalee ci pano yi. Sooy yóbbu ndoxu robinet bu dëgër bu bawoo ci benn hose jardin, nga dugal ko ci benn courant solaire bu am 600 volt DC, dafay yóbbu courant direct bu jubal ci ndox mi ci sa loxo, di indi fibrillation ventriculaire ci saasi wala nga tëj say sidit ci buse hose bi.
2. Sudee ab batëri kër ci sa garage dafay siif, di jameet, di newwi, wala di génne vapër bu weex/doomu taal, DEFAL KO CI SAASI te bul dox ba ci batëri bi ngir wëlbati interruptëram: Batëri lithium-ion buy siif wala di tóx **garage bi dafay tëju ak hydrogen (\(H_2\)), monoxyde de carbone (\(CO\)), ak fluorure d'hydrogène buy yàq (\(HF\)). Soo doxee ba ci armoire batëri bi ngir tëye butoŋu tàkk-lakk bi ci wet gi, daf lay yóbbu ci zone explosion bu deflagration vapeur-nuud biy waaja am.
3. Bàyyil buntu garage bu mag bi ubbeeku sudee ubbeeku na ba noppi, wala nga génn ci buntu kër ga te doo tëye benn ubbikaayu garage bu am kuuraŋ: Sudee sa batëri garage dafay bàyyi gaz bu weex ci garage bu tëju, tëye butoŋu buntu garage bu ndeyjoor bi ci buntu garage bi ci ndeyjoor dafay defar benn relais hydrogen bu am kuuraŋ. Rawaleel ku nekk ci kër gi jaare ko ci buntu kër ga, dox te nga moytu jege buntu garage bi (biy nekk buntu buy dindi gaz bi su gaz bi tàkkee).
4. Sudee jafe-jafe bi mingi ci kaw kër gi wala ci INVERTER bi (te nekkul batëri buy fay gaz ci wetu interruptër yi), nga aktive interruptëru Solar Rapid Shutdown (RSD) bi ci biti ak AC Solar Disconnect: Dox ba ci sa barabu kontëru kuuraŋ bi ci biti. Fësal champignon bu xonk bi Commutateur de arrêt rapide PV (wala nga dindi Levier de déconnexion solaire AC ci position OFF). Ci sistem yu bees yi topp kode yi (NEC 690.12), dagg kuuraŋ CA wala bës butoŋu Rapid Shutdown dafay dindi kuuraŋ elektronik bi ci kaw module bi, wàññi voltage conducteur bi ci suufu 30 volt ci diir bu néew 30 seconde.
5. Woowal serwiisu paj mu jamp ci 30 meetar (100 pied) ci kaw ngelaw li nga wax dispatcher bi ndànk ni am nga paj mu jamp ci SOLAR PV wala HOME BATTERY WALL: Woowal sa dëkk nimero paj mu jamp (911 ci Etats Unis ak Canada, 112 ci biir Union Européenne, 999 ci Royaume-Uni). Wax leen bu baax: "Am nanu [panneau solaire ci kaw kër gi / inverter lakk / batëri lithium-ion thermique runaway] ci [adres]; kër gi amna solaire ci kaw kër gi ak [marke/kWh] sistemu dencukaay batëri ci [garage / sous-sol / miir bi ci biti]."
6. Fasal sa famiy yépp, say baayima, ak say dëkkandoo ñu baña dugg ci saxaar si: Saxaar siy bawoo ci tànki pano soleer yi (tedlar/fluoropolymer) ak electrolyte batëri litium-ion yi dañuy àndaale ak gaz fluorure d'hydrogène (\(HF\)) ak ay particule metal yu diis. Inhalaasioŋ bu tuuti ci vapër batëri bi dafay indi ëdem pulmonaire chimik bu yeex (fluid ci biir poumon yi); Wutal ci saasi pajum doktër su amee ku noyyi saxaar si.

Garab taktik dogal ngir PV jant ak jafe-jafe batëri kër¶

Jëfandikool garabu dogal bii ngir tontu ci jàmm su amee lakk buy tàkk ci kaw kër gi, ab inverter/isolateur arc fault, wala ab batëri kër buy daw thermique te doo gaañu ci kuuraŋ wala gaañ-gaañu ci explosion.

flowchart TD
    Start["Saxaar, Arc, Popping, Xet Chimik, wala Xal ci Solar PV wala Sistemu Batëri kër"] --> Source{"1. Ban cër mooy lajj?"}
    Source -->|"A. Batëri kër (BESS) siif, tàng, wala génne vapër"| NoApproach["BU LEEN JEGE BATERI BI: Hydrogen buy kalaate ak gaz HF bu am toxic"]
    NoApproach --> EvacHouse["Rawaleel képp ku nekk ci biir garage bi ak baayima yi jaare ko ci buntu kër ga (BULEEN Jëfandikoo buntu garage bu am kuuraŋ); toxu 30m+ (100 pied+) ci ngelaw li"]
    EvacHouse --> MeterClear{"Ndax kontëru utilite bi ci biti / Rapid Shutdown bi nekk ci kuuraŋ bu wuute amul saxaaru batëri?"}
    MeterClear -->|"Yes: Completely Clear Outside"| PullMeter["Teg levier de déconnexion AC Solar / ESS ci OFF nga bës bouton de décharge rapide rouge"]
    MeterClear -->|"Deet: Ci biir garage wala ci wetu saxaar"| LeaveSwitches["Bàyyileen bépp interruptër buñu laal; xaar pompie HazMat ak ekipu motër"]
    Source -->|"B. Pano soleer ci kaw kër gi wala inverter buy tóx/arc"| StayOffRoof["1. BULEEN MUSAA yéeg ci kaw kër gi wala nga diw hose jardin ci kaw pano soleer yi<br/>2. Rawal njaboot gi ci biti"]
    StayOffRoof --> ShutSolar["Ci bitti miir bi (sudee amul lakk):<br/>1. Fësal PV Red interrupteur de arrêt rapide<br/>2. Dindi levier de déconnexion solaire AC OFF<br/>3. Flip Dijoncteur Solaire bu mag bi ci Panel bu mag bi"]
    ShutSolar --> TurnOffDC["Sudee onduleur bi du tóx/arc: Taalal onduleur bi mu OFF"]
    PullMeter --> Call911["Woowal 911 / 112 / 999: Xalaatal kiy yónnee barabu batëri solar + litium ci kaw kër gi"]
    LeaveSwitches --> Call911
    TurnOffDC --> Call911

Matriks buy méngale: ñatti zone yu sistem solaire bi di yàqu ak seeni loraange yu amul fenn¶

Instalaasioŋu dencukaay solar ak dencukaay ci dëkkuwaay amna ñatti zone electrik yu wuute. Zone bu nekk amna anam wumu mëna jaar ba noppi dafay laaj protocolu isolation bu amul benn werante.

Plongeur bu xóot 1: Panelu jant buy tàkk ci kaw kër gi, arc conecteur MC4, ak lu tax courant DC di ray nit¶

Lànket forensiik yi BRE Centre Solaire National (Royaume-Uni), Fraunhofer ISE (Allemagne), ak UL Solutions (Etats Unis)** amal ginaaw lakk bu am, dañu wane ni lu ëpp 70 pursaa ci lakk yiy tàkk ci kaw kër yi duñu tàmbali ci biir pano soleer yu weer yi ci seen bopp; ñu tàmbali ci kablaas DC, lëkkalekaay fiil MC4 yuñ tënk ci tool bi, ak interruptëri isolatër DC yi ci kaw kër gi ñu def ci suufu pano yi.

Lu waral arc courant direct (DC) di tàkk ni torche de soudure¶

Ci sa kër 120-volt wala 230-volt Courant alternatif (CA), voltage bi dafay wëlbatiku 50 wala 60 yoon ci seconde bu nekk, di jaar ci zero volt 100 ba 120 yoon ci seconde. Saa yu voltage CA weesee zero, benn spark electrik dafay fay ci boppam ci diiru benn millisegond, loolu mooy tax arc CA yi di gaawa gàtt te yombal disjoncteur yi dagg.

Courant direct (DC) biy joge ci benn pano soleer du musa jéggal zero volt. Sudee benn conector MC4 bu loose ci suufu benn pano soleer dafay xëcc tuuti ndax expansion thermique ak contraction (tàngoor ba 70°C / 158°F ci boori tisbaar bu nekk ak gelé ci guddi gi), wala sudee jacket bu ñuul bi dafay sàqami fiil buum: - Voltage biy wéy di dem ci benn yoon, dafay tëmb ci bërëb bi, daal di dóor arc plasma DC buy wéy ci 3,000 degre Celsius (5,400 degre Fahrenheit), mu méngoo ak physique bu soudeur arc DC usine. - Arc bi dafay seey plastik MC4 bi, dafay vaporize fiil përëm bi, seey ci biir kaadaru panneau solaire aluminium, ba noppi daaneel wen wu weex-tàng buy seey ci kaw xob yu wow yi, lëmu picc yi, ak toit asphalte yi tëju ci suufu rang bi.

Ni ñuy dindi kuuraŋ ci sistem solaire ci suuf (Jéego ci jéego)¶

Bépp boroom kër bu am solaire ci kaw kër gi dafa wara wut interruptër yi ci biti balaa jafe-jafe di am. Dafay aju ci kañ lañu samp sa sistem ak ndax dafay jëfandikoo Microinverter, Optimizers DC ak Inverter bu am string, wala Inverter bu yàgg buñu defaruwul, tëj sistem bi dafay dox nii:

   [EXTERIOR SOLAR EMERGENCY SHUTDOWN SEQUENCE]

   Locate Utility Meter Wall on Outside of House:

   +------------------------+     +------------------------+
   | [Red Mushroom Button]  |     |  [Metal Lever Box]     |
   |  PV RAPID SHUTDOWN     |     |  AC SOLAR DISCONNECT   |
   |  (Push Inward)         |     |  (Pull Handle DOWN)    |
   +-----------+------------+     +-----------+------------+
               |                              |
               +--------------+---------------+
                              v
      Drops Rooftop Voltage to <30V in 30 Seconds
      on Modern Code-Compliant Systems (NEC 690.12)

1. Jéego 1: Defal PV bi ci biti tëj gaaw / AC jant Deconnecter:
2. Dox ci biti dem ci sa kontëru kuuraŋ bu mag bi. Ci wetu kontoor bi, seetal benn boyet bu am levier buñ bind "DESCONECT DU SYSTEM FV" / "DESCONECT DU SOLAR CA" ak/wala benn butoŋ bu xonk bu am butoŋ bu xonk buñu bind "INTERMUTATEUR DE ARREMPATION RAPIDE POUR DU SYSTEM PV SOLAR."
3. Toggal butoŋu tëj bu gaaw bi xonk bi ci biir nga teg levier bi ci kaw boîte de déconnexion AC Solaire bi jubal ci position OFF.
4. Lii di def ci sistem yu bees yi (ñu ko samp ginaaw 2017 ba 2020 ci Amerique du Nord):
   • Sudee sa kaw dafay jëfandikoo Microinverters (fu pano soleer bu nekk di soppi DC ci AC ci suufu pano bi), sooy xëcc AC Solar Disconnect bi dafay tàmbali ci saasi relais anti-islanding microinverter yi, di tëj kuuraŋ bi ci pano bu nekk ci kaw bi ci diir bu néew 1 seconde.
   • Sudee sa kaw dafay jëfandikoo Optimizers de puissance DC wala Receveurs d'arrêt rapide, dagg siñaal biy doxal AC dafay tax boîte module bu nekk ci kaw kër gi wàcce génnam ci 1 volt ci panel bu nekk (ci suufu 30 volt ci lëmm ci buum gi yépp) ci diiru 30 seconde.
5. 2eelu jéego bi: Def backfed "Solar / PV Breaker" OFF ci biir sa Panelu Kuuraŋ bu mag:
6. Ubbi sa boyet bi gëna mag ci kër gi. Ci suufu busbar bi (ci jàkkarloo ak disjoncteur 200A bi gëna mag), wutal disjoncteur bi am ñaari pole yuñ bind ci sticker bu xonk bumu bind "SOLARE PV DISCONNECT" / "BACKFED SOLAR BREAKER" nga wëlbatiko ci OFF.
7. Step 3: Turn the Rotary DC Disconnect Switch on the Inverter to OFF (ONLY if the inverter itself is cool and undamaged):
8. On the bottom or side of a string inverter box is a black or red rotary dial labeled DC DISCONNECT (ON / OFF).
9. SÀRTI KAARAANGE BU AM SOLO: Sudee inverter bi wala interruptëru DC bi dafay tóx, di yuuxu, di xeeñ plastik bu lakk, wala di wane tàngoor wuy soppi melo, BUL KO LAAAL. Soo wëlbati interruptëru isolatëru DC bu yàqu, bu am corrosion ci biir sarge, mën na tax contact yi ci biir ñu souder wala ñu kalaate ci flash arc. Ndax yaa ngi fay AC bi ci jéego 1 ak 2, inverter bi mingi woon ci zero amperes (zero courant flow), dafay taxawal tàngoor wu ëpp wi te doo laal interruptëru DC bi.

Deep dive 2: Home battery wall (BESS) thermal runaway and garage vapor explosions¶

Millions of homeowners are pairing rooftop solar with stationary Lithium-Ion Battery Energy Storage Systems (BESS) ranging from 10 to 40+ kilowatt-hours (kWh) mounted on garage walls, basement utility rooms, or exterior siding. To put that energy capacity into perspective: a single 13.5 kWh residential battery wall holds the energy equivalent of 450 laptop batteries packed into a single metal cabinet.

LFP (Lithium Iron Phosphate) vs. NMC (Nickel Manganese Cobalt) in thermal runaway¶

Residential battery walls use one of two lithium-ion chemistries: NMC (Lithium Nickel Manganese Cobalt Oxide) or LFP (Lithium Iron Phosphate). While LFP batteries have a higher thermal runaway onset temperature and burn less violently than NMC cells, UL 9540A large-scale fire tests demonstrate that when LFP batteries undergo thermal runaway without igniting immediately, they vent large volumes of explosive hydrogen (\(H_2\)) and carbon monoxide (\(CO\)) gas that create an extreme enclosed-space explosion hazard inside a garage.

Uragaan bu am doole ak ndoxu mbënd buy dugal kuuraŋu batëri kër yi¶

(Gulf of Mexico) - Li waral ndox mu xorom di indi lakk bu yeex ci batëri: Ndox mu xorom electrolyte la bu mëna yóbbu kuuraŋ. Su ndoxu mbënd mi yeggee ci kaw seal bi ci suufu miiru batëri buñ monte ci garage (ñu koy gëna monte ci 60 ba 120 santimet / 2 ba 4 pied ci dër bi), ndoxu xorom buy jaar dafay boole busbar DC yu am voltage bu kawe bi ba noppi yàq Sistemu Gestion de Battery (BMS) bi. Electrolyse dafay defar gaz hydrogène ci noonu la tàngoor wu gàtt wi di yóbbu selul yi ci ndox mi ci thermal runaway, yenn saa yi 24 ba 72 waxtu ginaaw bi ndox mi di dem. - Protokolu mbënd: Sudee ndoxu mbënd laal wala suul benn wàll ci sa batëri kër wala invertëru jant: 1. Bu leen musa dugg ci garage bu ndox mi fees (ndox mi taxaw mën na am courant batëri bu 400V DC). 2. Never attempt to turn the battery back on once the water recedes. 3. Woowal 911 / 112 / 999 ci saasi soo déggoo bubble, siif, wala nga gis vapër/saxaar buy joge ci batëri bu tooy bi, nga jokkool ak liiñ biy tontu ci jafe-jafe yi defarkatu batëri bi ngir ñu am teknisien hazmat buy dindi aparey bi ci jafe-jafe.

Deep dive 3: Post-fire hazards, toxic hydrofluoric acid (\(HF\)), and stranded energy¶

Doonte pompier yi fay nañu xal yi ci kaw kaw bu am solar wala seddal miir bu batëri kër gi lakk, ñaari loraange yu metti ñoo des ci sa moomel:

1. Energie kuuraŋ buñ tëj ak tàkkaat:
2. Ci kaw kër gi: Pano soleer yu yàqu, yu lakk, ak weer tempered bu yàqu, ba leegi ñu ngi defar téemeeri volt kuuraŋ DC buy ray nit ci suba si jant bi fenk. Bul musa laal pano soleer yu charbonné, cable yuy weer, wala gouttes/downspouts yuñ defaree wen ginaaw bi kaw kër gi tàkkee. Electricien solaire bu am lijjaassa bu sol gant arc-flash bu am isolation bu 1000 volt dafa wara dagg connexion bi, laxas ko, muur wala dindi module yi yàqu.
3. In the Battery Wall: Lithium-ion battery packs contain dozens of individual cell modules. Even after a battery fire appears completely cold on the outside, trapped heat inside adjacent unburned cells can trigger delayed secondary thermal runaway 12 hours to several days later. Firefighters monitor burned battery walls with thermal imaging cameras until a hazardous-waste recovery crew submerges or transports the pack outdoors.
4. Corrosive Hydrofluoric Acid (\(HF\)) and Heavy Metal Ash:
5. Both solar panel backsheets (polyvinyl fluoride / Tedlar) and lithium-ion battery electrolyte (\(LiPF_6\), lithium hexafluorophosphate) release hydrogen fluoride (\(HF\)) gas when burned, which dissolves in firefighting water runoff to form hydrofluoric acid.
6. Never touch battery ash, soot, or water puddles around a burned battery or solar panel with bare hands. Hydrofluoric acid penetrates skin without immediate burning pain, then binds calcium and magnesium in deep tissues and blood, causing severe bone necrosis and fatal hypocalcemic cardiac arrest. Require professional hazardous-materials remediation before cleaning a garage or attic after a battery or solar fire (see lakk yu metti ak fóotu chimik).

Homeowner solar and battery fire prevention checklist¶

Eliminate the leading causes of solar arc faults and battery thermal runaway by completing this six-point inspection and preparation routine:

• Install steel critter-guard mesh around the perimeter of your rooftop solar array: Squirrels, pigeons, and rats love nesting in the warm, sheltered 10-centimeter (4-inch) gap underneath rooftop solar panels and sharpening their continuously growing teeth on the 600-volt DC PV cables. Have your installer clip anodized aluminum or PVC-coated steel wire critter-guard mesh around the entire outer edge of the array to block animals and windblown leaves completely.
• Schedule a 3-to-5-year infrared thermal drone / camera inspection: Loose MC4 connectors, failing bypass diodes, and panel "hot spots" (caused by bird droppings, micro-cracks, or heavy shading) show up brightly on an infrared thermal camera months before they melt through the backsheet.
• Keep a 1-meter (3-foot) "Zero Combustibles" clearance zone around inverters and battery walls: Never stack cardboard moving boxes, paint cans, gasoline lawnmowers, or holiday decorations against a garage battery wall or string inverter. Install heavy steel vehicle impact bollards in front of garage-mounted batteries so a car pulling into the garage can never bump and crush the battery cabinet.
• Install a hardwired Heat Alarm (in the garage) and Smoke/CO Alarms (inside the house): Standard optical smoke alarms often false-alarm from car exhaust in garages, so building codes (IRC R309 / NFPA 855) specify a 135°F/194°F fixed-temperature and rate-of-rise heat detector in the garage interconnected to all interior house smoke and carbon monoxide alarms so your family wakes up instantly if a garage battery overheats at 3:00 AM.
• Verify permanent reflective red "SOLAR PV / BATTERY STORAGE" warning placards at your electric meter: Check that your exterior utility meter and main panel have fade-resistant engraved metal or UV-stable red reflective placards showing the exact location of your Rapid Shutdown switch and any indoor battery storage units so arriving firefighters see them in the dark.
• Check manufacturer safety recalls on your inverter, DC isolator, and home battery: Several major international brands of residential lithium-ion home storage batteries (including LG Energy Solution RESU units and others) and rotary DC isolator switches have been subject to urgent CPSC, OPSS (UK), and ACCC (Australia) fire recalls. Check your serial numbers at cpsc.gov and keep your battery's internet Wi-Fi connection active so the manufacturer can push automatic BMS safety firmware updates.

Laaj yi ñuy faral di laaj¶

Saytu nañu ay balluwaay¶

• National Fire Protection Association (NFPA, United States): NFPA 70 (National Electrical Code Article 690.12: Rapid Shutdown of PV Systems on Buildings), NFPA 855 (Standard for the Installation of Stationary Energy Storage Systems), and Firefighter Solar PV & Lithium-Ion BESS Tactical Training.
• Underwriters Laboratories / UL Fire Safety Research Institute (UL FSRI, United States): UL 9540A Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems and Residential Garage Deflagration Studies.
• United States Fire Administration (USFA / FEMA, United States): Emergency Response to Photovoltaic (Solar) Systems and Lithium-Ion Battery Energy Storage Systems After Saltwater Flooding.
• BRE National Solar Centre and Institution of Engineering and Technology (IET, United Kingdom): Fire and Solar PV Systems: Investigations and Guidance on DC Arc Faults, MC4 Connectors, and Isolator Switches.
• International Association of Fire Fighters (IAFF) and International Fire Code (IFC Section 1205 / 1207): Solar Photovoltaic Power Systems and Residential Energy Storage System Setback, Ventilation, and Placard Standards.

Gid yu jëm ci loolu¶

• Lithium-ion battery fires: e-bikes, phones, and EVs
• Lakk yuy génne kuuraŋ ak génnekaay
• Arc ak tàngoor wu ëpp
• Kaaraange lakk ak rawale kër
• Electric shock first aid and high-voltage rescue
• Annuaire numéro d'urgence