Nightclub, Sebaka sa Konsarete, le Phallo ea Mollo oa Bongata ka Ka Hare¶
Linomoro tsa maemo a tšohanyetso li fapana ho ea ka linaha. Leqephe lena le sebelisa 911, nomoro ea United States le Canada. Linaha tse ling tse ngata li sebelisa 112, 999, kapa nomoro e ’ngoe. Fumana nomoro ea naha ea heno.
Libaka tsa boithabiso tsa ka tlung, ho kenyeletsoa li-nightclub, libara tsa mmino tse mokatong o ka tlase, liholo tsa konsarete, libaka tsa kamohelo ea machato le mehala ea liketsahalo, li kopanya batho ba bangata haholo ba nang le mabone a lerootho, melumo e nyahamisang ea 'mino,' mino o lerata o lerata, ho senyeha ha joala le melumo e patehileng e tukang. Ha sethala sa pyrotechnics, liliba tsa sparkler tse ka hare ("gerbs"), li-trusses tsa sethala tse chesang ho feta tekano, kapa liphoso tsa dimmer tsa motlakase li hotetsa foam e thibelang molumo oa selefouno ea polyurethane acoustic, likharetene tsa sethala kapa mokhabiso oa siling ea polasetiki, mollo ha o tsoele pele ho latela kemiso ea nako ea metsotso e 10 ho isa ho e 15 ea mollo o tloaelehileng oa ntlo. Ho e-na le hoo, liphetoho tsa forensic tse entsoeng ke Setsi sa Sechaba sa Maemo le Theknoloji ea United States (NIST) le National Fire Protection Association (NFPA) li paka hore foam e sa chesehang ea polyurethane acoustic foam e potlakisa ho tloha tlhase e nyenyane ho ea kamoreng eohle ** flashover ** le mosi o feletseng o motšo o theohelang fatše ka ** 60 ho metsotsoana e 120*.
Se fetolang mollo oa li-nightclub tsa metsotsoana e 90 hore e be koluoa e bolaeang batho ba bangata ke leraba le ka lebelloang la boitšoaro ba batho le tsejoang ka boenjiniere ba ts'ireletso ea mollo e le ho lokisa le ho tsoa lemati. Ka tlas'a khatello e matla le ho se bonahale, karolo ea 80 ho isa ho 90 lekholong ea bareki ba kheloha ka tlhaho 'me ba khutlela morao ho leba monyako o mong o moqotetsane o ka pele oo ba neng ba feta ho oona ha ba fihla, ba hlokomoloha ka ho feletseng mamati a tsoang ka tšohanyetso a ka morao ho sethala, pela matloana, kapa ka kichineng. Ka mor'a metsotsoana e 45, batho ba makholo ba hatellana ka har'a vestibule e moqotetsane ka pel'a likhatello tse fetang 3,000 Newtons per square meter, ba koala lemati le tiile ka har'a arch ea motho e itšebetsang ha mosi o motšo o nang le "hydrogen cyanide" e bolaeang (\(HCN\))** le carbon monoxide (\(CO\)) e theohela fatše. Ho tseba ho sisinyeha ha motsotsoana feela u bona lelakabe le ama lebota kapa siling (pele alamo ea mollo e utloahala), mokhoa oa ho ea ka ho toba lehlakoreng la bobeli kapa ka morao ho ntlo, mokhoa oa ho nka boemo ba mosireletsi oa sefuba haeba o tšoaroa monyako, le mokhoa oa ho hema ka tlas'a mosi o chesang o pholosa bophelo ba hau.
Etsa sena hona joale¶
Haeba u le ka har'a li-nightclub, bar, sebaka sa konsarete, kapa holo e phetheselang ea ka tlung 'me u bona litlhase, pyrotechnics, kapa malakabe a ama lerako la acoustic, siling drapes, kapa sethala se ka morao, etsa liketso tsena tse tšeletseng hang-hang:
- ** Suthela moo u tsoang teng hang ha u bona malakabe a ama lebota kapa siling (Molao oa Zero-Bobeli)**: Le ka mohla u se ke ua emisa ho etsa filimi ka mohala oa hau, le ka mohla u se ke ua nka hore foam e tukang ke "karolo ea lenaneo," 'me le ka mohla u se ke ua emela hore' mino o eme kapa morekisi oa bartender a u joetse hore u tsamaee. Mollong oa acoustic foam, u na le nako e ka tlase ho 60 ho isa ho metsotsoana e 90 pele mosi o motenya, o motšo o chefo o theohela fatše ebe o tima ponahalo eohle.
- Lahla jase ea hau, sepache, lino, le metsoalle e arohaneng, 'me u lebe tseleng ea ho tsoa ea BOBELI, ESENG monyako o ka pele: Hoo e ka bang motho e mong le e mong ka phaposing o tla thula ka pel'a kamore e ka pele ea kamohelo ea litekete, e koalang ka ho felletseng ka 'mele e kopaneng ka metsotsoana e ka tlase ho 45. Retelehela hang-hang u lebe botala bo bonesitsoeng kapa bo bofubelu ba **EXIT matšoao ** haufi le mabota a mahlakoreng, pela sethala, haufi le matloana, kapa u tsamaee ka ho toba ka ** kichineng / phasejeng ea litšebeletso ** ho ea monyako o ka morao.
- **Phahamisa matsoho a hau ho "lebeli la litebele" ka pel'a likhopo tsa hau ha letšoele le u pota-potile **: Haeba u fieloa ke letšoele le teteaneng le lebileng monyako, boloka maoto a hao a arohane ka mahetla, kenya litsoe ka hare, 'me u tšoare liphaka tsa hao ka holimo sefubeng sa hao ka matsoho a hao haufi le marapo a hau. Sena se theha lesaka la sebopeho sa 10-to-15-centimeter (4-to-6-inch) ka pel'a likhopo tsa hau hore mats'oafo a hau a ntse a ka hola ha letšoele le kopane hammoho (bona ho phonyoha ha bongata le ho phonyoha).
- Theohela ka tlas'a mosi o motšo matsohong le mangole haeba mosi o theoha pele u fihla monyako: Mosi oa foam oa polyurethane o chesa haholo (300 ho isa ho 600 degrees Celsius / 570 ho isa ho 1,100 degrees Fahrenheit) 'me o tletse ka khase ea hydrogen cyanide; ho hema ho hema habeli kapa tse tharo tsa mosi o motšo oa boemo bo holimo ho baka tahlehelo ea maikutlo hanghang. Theohela sebakeng se tlaase kapa ho khasa ka potlako ka har'a lisenthimithara tse 30 ho isa ho tse 60 (maoto a 1 ho isa ho a 2) ho tloha fatše moo moea o pholileng, o hloekileng o setseng, 'me u boloke letsoho le le leng le thetsa lebota ho u tataisetsa monyako o latelang.
- Sututsa thipa e tšekaletseng mamating a ho tsoa ha ts'ohanyetso, 'me haeba e petetsane kapa e notletsoe, u roba fensetere e mokatong o ka tlaase hang-hang: mamati a ho tsoa a lumellanang le khoutu a buleha ka ntle ha u tobetsa panic hardware bar e tšekaletseng. Haeba selotlolo se seng molaong se thiba lemati le ka morao kapa qubu ea batho e koala lemati le leholo, u se ke ua sutumetsa mekokotlong ea batho ba qabeletsoeng; Etela hang-hang fensetereng e mokatong o ka tlaase, pshatla khalase ka ntle haufi le lihuku u sebelisa setulo sa tšepe se boima, silinda ea setima-mollo ea CO2 kapa poso ea tšepe, fiela bokatlase ka baki, 'me u hloelle ka ntle.
- Hang ha u le ka ntle, suthela bonyane limithara tse 30 (maoto a 100) ho tloha monyako oa ho tsoa 'me u letsetse litšebeletso tsa tšohanyetso: Le ka mohla u se ke ua ema ka ntle ho monyako oa ho tsoa ho hetla morao bakeng sa metsoalle; Ho ema ka thōko ho tsela ho thibela batho ba tšolohang ka mor'a hao 'me ho khutlisa lekhalo monyako o tukang. Tsamaea ka ho hlaka ho ea seterateng, letsetsa sebaka sa heno dinomoro tsa tshohanyetso (911 United States le Canada, 112 ho pholletsa le European Union, 999 United Kingdom), le ho hlokomelisa ba fanang ka thuso ea bongaka maemong a tšohanyetso hang-hang ho batho leha e le bafe ba phonyohang ba ferekaneng, ba nang le mosi molomong, kapa ba hema (matšoao a chefo e matla ea cyanide le carbon monoxide).
Hobaneng ha foam ea polyurethane acoustic 'egg-crate' e le peterole e tiileng maboteng
Li-clubs tse ngata tsa khale, likamore tsa boikoetliso tse ka tlase, le libaka tse sa ngolisoang ka molao li khomaretsa foam e entsoeng ka mashala a boputsoa ** polyurethane "egg-crate" maboteng le siling ho bolaea maqhubu a base ho fapana le ho kenya boea ba liminerale bo sa sebetseng ka mollo kapa liphanele tsa fiberglass acoustic tse netefalitsoeng. Ka lik'hemik'hale, foam e tloaelehileng ea polyurethane ke polima ea petroleum e tletseng limilione tsa lisele tse nyenyane tsa moea. Ha e angoa ke tlhase ea pyrotechnic kapa kerese, foam ea polyurethane e qhibiliha ka har'a marotholi a mokelikeli a tukang, e hasa malakabe ho ea holimo leboteng ka ** 30 centimeters ka motsotsoana (leoto le le leng ka motsotsoana)**, e ja oksijene ea kamore eohle, 'me e ntša mosi o motšo o tletseng **hydrogen cyanide ($ HCN$) e ka hare ho boko bo sa tsitsang, ka hare ho boko bo ka hare, metsotsoana e 30.
Sefate sa liqeto tse bohlale bakeng sa li-nightclub le ho tlosa mollo sebakeng sa ka tlung¶
Sebelisa sefate sena sa liqeto ho tsamaea metsotsoana e 90 e mahlonoko ea mollo oa bongata ka tlung ntle le ho ts'oaroa ke monyako o moholo oa monyako.
flowchart TD
Start["Litlhase, Pyrotechnics, kapa Flame Touchs Venue Wall, Siling, kapa Stage"] --> ZeroSec["1. ZERO-SECOND MOLAO: Tloha Hang-hang; U SE KE UA Filimi, U SE KE UA Kena ho Hlahloba Liaparo"]
ZeroSec --> ChooseExit{"2. Ke tsela efe ea ho tsoa e haufi haholo le e nang le batho ba fokolang haholo?"}
ChooseExit -->|"Monyako o ka Pele o Pela Batho ba bangata"| BypassMain["BYPASS FRONT DOOR: E-ea hang-hang ho ea ka Lehlakoreng la Tsohanyetso, Monyako o ka Morao oa Mothati, kapa ho Tsoa Tšebeletsong ea Kichineng."]
ChooseExit -->|"Ho Tsoa ha Bobeli ke Ka hare ho Limithara tse 15"| PushPanic["Sututsa panic crash bar e otlolohileng ho bula kantle; lula u tsamaea 30m (100 ft) ho tloha mohahong"]
BypassMain --> SmokeCheck{"3. Na mosi o motšo o theoha ho ea fihla hloohong?"}
SmokeCheck -->|"E: Ponahalo ea Chese / Mosi o Chesang"| CrawlWall["Theohela ho ea tlaase-tlaase / khasa 30 ho 60 cm (1 ho 2 ft) ho tloha fatše; koahela nko / molomo ka hempe e mongobo / e omeletseng; latela lebota ka letsoho le le leng ho leba menyakong e latelang"]
SmokeCheck -->|"Che: Moea o Hlakileng"| CrowdCheck{"4. Na bongata ba batho bo hatellana haufi le uena?"}
CrowdCheck -->|"E: Khatello e Phahameng ea Bongata"| BoxerGuard["Phahamisa liphaka ho Boxer Chest Guard; tsamaea ka diagonally ho ea moeling oa lebota; le ka mohla u se ke ua inamela fatše bakeng sa fono / seeta se oeleng"]
CrowdCheck -->|"Che"| PushPanic
CrawlWall --> DoorBlocked{"5. Na monyako o petelitsoe ke qubu kapa o notletsoe?"}
BoxerGuard --> DoorBlocked
DoorBlocked -->|"E: Lemati le Koahetse"| BreakWindow["SE KE UA sutumelletsa ka qubu; tšoara setulo sa tšepe e boima kapa silinda ea setima-mollo ho pshatla foreimi ea fensetere e mokatong o ka tlase ebe u tsoa."]
DoorBlocked -->|"Che: Lemati le Hlakile"| PushPanic
Matrix a papiso: Kemiso ea nako ea mollo oa li-nightclub tsa NIST (metsotsoana e 0 ho isa ho e 180)¶
Kamora ho chesoa ho hoholo ha li-nightclub tsa khale, Setsi sa Naha sa Maemo le Theknoloji sa United States (NIST) se ile sa haha lisebelisoa tsa laboratori tse felletseng tsa sethala sa pyrotechnic hotetsa foam ea polyurethane acoustic ka har'a sebaka se sa fafatsoang. Bapisa tikoloho ea 'mele ka har'a kamore ka nako e' ngoe le e 'ngoe ea metsotsoana e 30:
| Nako Ho tloha ha Spark e Ama Foam ea Lerako | Ho ata ha Lelakabe le Mocheso oa Lera la Siling | Ponahalo le Khase e Chefo ho 1.5m (5 ft) Bophahamo ba Hlooho | Boitšoaro ba Bongata & Boemo ba Menyako | Ketso e Hlokehang ea ho Pholoha |
|---|---|---|---|---|
| 0 ho isa ho Metsotsoana e 15 (Ho khantša) | Lelakabe le hotetsa thipa ea acoustic foam crease; mollo o nyoloha ka potlako ho ea siling ho 0.3 m / s (1 ft / s); mocheso oa khase ea siling o fihla ho 100°C (212°F) | 100% ponahalo e hlakileng ho pholletsa le kamore; mosi o mosoeu siling; hangata sehlopha se ntse se bapala | Tlhaloso e Tloaelehileng: 90% ea letšoele e eme e ntse e shebile lelakabe, ho nka hore ke phello e reriloeng kapa e tla ntšoa ka kopi ea metsi; li-smartphone li tsoa ho tla rekota | **Tsamaea ka potlako ho ea tseleng ea ho tsoa ea bobeli e haufi HONA JOALE |
| Metsotsoana e 15 ho isa ho e 45 (Vertical Plume & Alarm) | Mollo o hasana ka mahlakoreng ho pholletsa le lithaele tsa siling le likharetene tsa sethala; polyurethane e chesang e chesang e rothela fatše sethaleng; lera le ka holimo le otla 300°C (572°F) | Mosi o teteaneng o theohela ho 1.8 metres (6 feet) ka holim'a mokato; lenaka la alamo ea mollo / strobes kenya tshebetsong; monko oa polasetiki o tukang o otla bongata | Letšoele le lemoha kotsi ka nako e le ’ngoe; 80% reteleha 'me u sutumele ho leba ntlong e le 'ngoe ** e ka pele ea monyako oa kamohelo **; jams-check phasejeng jams | Feela ka ho feletseng monyako o kenang ka ho feletseng; sututsa ka mahlakoreng a mamati a ho tsoa ha tshohanyetso kapa ka mora bar/kitchen. |
| Metsotsoana e 45 ho isa ho e 90 (Blackout & Toxic Descent) | Mocheso o khanyang o tsoang leleng la mosi oa siling o hotetsa litulo tsa bar, maphephe, le liphanele tsa lehong (Flashover start); mocheso o ka holimo oa khase o feta 600°C ho isa ho 800°C (1,100°F ho isa ho 1,470°F) | Ponahalo e se nang letho (botšo bo hlakileng) ha mosi o theohela ho 0.3 ho isa ho 0.6 metres (maoto a 1 ho isa ho a 2) ho tloha fatše; oksijene e theoha ho tloha ho 21% ho ea ho <12%; Hydrogen Cyanide (\(HCN\)) > 200 ppm le \(CO\) > 3,000 ppm | Pokello ea Koluoa ea Monyako o ka Pele: Batšehetsi ba khoptjoang monyakong o ka pele ba theha lekhalo la motho la bophahamo ba limithara tse 1.5 le thibang tsela e ka sehloohong ea ho tsoa; batho ba emeng ba otlolohile ba hema mosi o chesang haholo oa cyanide | Theoha ka tlase ho limithara tse 0.5 (20 inches) ho tloha fatše, tšoara moea kapa u heme ka tlaase ka lesela, latela lebota la boto ka ho thetsa lemati le lehlakoreng kapa u pshatle fensetere. |
| 90 to 180 Seconds (Total Flashover) | Bophahamo bohle ba phaposi bo kentsoe ke mollo o tlohang fatše ho ea siling ho 900°C+ (1,650°F+); ho pholoha ntle le thuso ka hare ho holo e kholo ho fetoha ho sa khoneheng | Maemo a bolaeang a mocheso le a ho fofonela ho tloha siling ho ea mokatong ka har'a kamore e kholo | Ke libaka tsa ho tsoa feela tse feptjoang ka liphaseje tse arotsoeng ka marako a mollo kapa lifensetere tse robehileng tse lulang li le bonolo | Hang ha u le ka ntle, ** suthela 30m (100 ft) hole**, hula bareki ba khathetseng ho tloha monyakong oa monyako, 'me u fane ka oksijene / CPR e phallang haholo. |
Deep Dive 1: Ho hlola "leeme le tloaelehileng" le leraba la lemati le ka pele la botlolo¶
Baenjiniere ba tšireletso ea mollo le litsebi tsa kelello tsa boits'oaro ba ithutang likoluoa tsa bongata ba ka tlung ba hlokometse maikutlo a mabeli a kelello a tšoasang batho ba baholo ba phetseng hantle 'meleng, ba sa lemalang ka har'a libaka tse tukang nakong ea metsotsoana ea pele e mashome a tšeletseng ha ho baleha ho ntse ho le thata.
1. Tloaelo ea leeme le bopaki sechabeng (Metsotsoana 0 ho isa ho 25)¶
Ha lelakabe le lenyenyane la lamunu le hlaha khareteneng ea sethala, ho kenngoa siling ea lipalesa, kapa phanele ea lebota la acoustic nakong ea konsarete kapa mokete, batho ba sheba lifahleho tsa batho ba emeng haufi le bona (**bopaki ba sechaba **) ebe ba leka ho hlalosa ketsahalo eo e le ntho e tloaelehileng (normalcy bias). Hobane ha ho motho ea batlang ho shebahala e le sethoto kapa ho tsieleha ka ho notlela lemati ha DJ a ntse a bapala, bareki ba ema metsotsoana e 20 ho isa ho e 35 ba hatsetse, kapa ba ntša li-smartphone tsa bona ho etsa filimi ea mollo o ntseng o hola. - The Iron Rule of Indoor Flame: Lelakabe le bulehileng e se ka boomo le amang lebota le otlolohileng, phanele ea foam ea acoustic, drape ea lesela, kapa mokhabiso oa siling ea polasetiki ka har'a sebaka sa kahare ** ha ho mohla ** ke khathatso e nyane. Nako eo lelakabe le kopanang le otlolohileng kapa ka holim'a thepa ea maiketsetso, oache ea pyrolysis e se e qalile. Fetolela 'me u tsoe ho Second Zero, u hule metsoalle ea hau ea haufi ka letsoho. Hang ha batho ba babeli kapa ba bararo ba nkang qeto ba tsamaea ka sepheo sa ho tsoa sebakeng sa tšohanyetso, bareki ba bangata ba haufi ba tloha boemong ba bona ba tloaelo ba ho latela.
2. Entrance-fixation ("The Homing Instinct") le mokhoa oa ho e senya¶
Lefifing le mosi, boko ba motho bo hloleha ho khutlisa tsela e nepahetseng ea sebaka se bolokiloeng mohopolong oa nako e khuts'oane: monyako oa litekete tse ka pele, li-turnstiles le foyer ea ho hlahloba lijase.
[TYPICAL NIGHTCLUB / VENUE FLOOR PLAN & BOTTLENECK]
+-------------------------------------------------------+
| [Exit B: Stage Side] [STAGE] [Exit C: Kitchen]|
| (WIDE OPEN) (Fire Here) (WIDE OPEN) |
| ^ ^ |
| | <-- Smart Evacuees | |
| |
| [MAIN DANCE FLOOR] |
| 80% of Crowd Surges |
| Down Narrow Foyer |
| | | | |
| v v v |
| +-----------------------+ |
| | [Coat Check / Foyer] | |
| | JAMMED BOTTLENECK | |
| +-------+-------+-------+ |
+----------------------| Main |------------------------+
| Entry |
- Hobaneng monyako o ka pele e le sefi sa lefu: Ho fapana le mamati a ikemiseditseng a ho tswa ka tshohanyetso (a bulehang ka ho toba ka ntle seterateng kapa mapatlelong ka ho sututsa ha letswai le le leng), monyako o moholo wa lebala la bosiu kapa sebaka sa konsarete e hlophisitswe ka boomo e le ** ntlha ya ho bipa ** ho laola batho ba nkang tekete, ho hlahlojwa ha ID, dithapo tsa velvet, melumo e notletsweng, mehala e notletsweng li-coat-check counters. Hangata, mamati a khale a ka pele a bile a suthela kahare kapa a koalehile lekhasi le le leng ka bolt.
- Sekena sa Sebaka sa Metsotsoana e 30 Ha U Fihla: Nako le nako ha u kena ka bareng, tlelapeng e ka tlaase, theater, kapa holo ea konsarete, qeta metsotsoana e 15 pele u reka seno-mapholi mekhoa e 'meli ea ho tsoa:
- Batla mats'oao a bonesitsoeng a **EXIT ** haufi le mabota a mahlakoreng kapa likhutlong tse ka morao tsa phaposi, 'me u tsamaee haufi le ho lekana ho netefatsa hore ha li thijoe ke litulo tse pakiloeng, mekotla ea biri, kapa libui.
- Fumana ** mamati a kichineng a khoebo ** kapa ** ka morao ho the-bar service phasejeng **. Reschorente e 'ngoe le e 'ngoe, holo ea mokete, le tlelapo e na le lemati la litšebeletso tse boima ka morao ho kichineng kapa sebaka sa ho laela se sebelisetsoang ho tlosa lithōle le ho tsamaisa lijo; maemong a tšohanyetso, ho tlola holim'a bar kapa ho tsamaea ka ho toba ka mamati a kichineng ho u ntša tsela e ka morao e sephara, e se nang batho ba bangata e arohaneng le kamore e kholo ka mabota.
Deep Dive 2: Mokhoa oa ho pholoha ha letšoele le qhekella le ho senya tsela ea ho tsoa¶
Haeba u sa ka ua phonyoha nakong ea metsotsoana e 30 ea pele, 'me u iphumana u tšoeroe ke letšoele le teteaneng, le tšohileng le tobaneng le monyako oa ho tsoa ha mosi o ntse o tetebela holimo, ho pholoha ha hao ho itšetlehile ka ho qoba compressive asphyxia le threshold qubuups.
1. Ho phela ka bongata bo bongata tseleng e eang monyako¶
- Amohela Boemo ba Bolebeli ba Sefuba sa Boxer hang-hang: Notlela likhopo tsa hao likhopong tsa hao tse ka tlaase 'me u phahamise liphatla tsa hao ka pel'a sefuba sa hau joalo ka ha motho ea loanang moputso a sireletsa selelu sa hae. Esita le haeba letšoele le tsoa ka morao ka khatello ea li-Newtons tse 3 000, matsoho a hao a kobehileng a sebetsa e le litšepe tse thata tse bolokang sebaka sa ho hema sa lisenthimithara tse 10 ka pel'a sefuba sa hau.
- Le ka mohla u se ke ua inama ho nka mohala, mokotla oa chelete, likhalase kapa seeta: Ha u le har'a letšoele la batho ba balehang, ba khumama thekeng kapa ba khumama ka mangole ho fumana mohala, ho tiisa hore letšoele la lifofu le ka morao le tla khoptjoa ka mor'a metsotsoana e 'meli, le tla u patela ka tlase ho qubu ea batho ba mefuta-futa eo ho ke keng ha khoneha ho ema ho eona.
- Qoba "Doorframe Arch Trap" ka ho sheba setsi kapa ho khutlela fensetereng:
- Ha batho ba 100 ba tšohileng ba leka ho kena ka har'a mamati a mabeli a bophara ba limithara tse 1.8 (bophara ba limithara tse 6) ka nako e le 'ngoe, mahetla a bona a hoholeha ka har'a mohaho o ikhihang hona monyakong oa monyako. Haeba motho a le mong ea ka tlase ho monyako a khoaela lemati, letšoele le ka morao le tsoela pele ho sutumelletsa pele, le phutha 'mele ea 4 ho isa ho e 6 ka hare ho monyako ho fihlela ho se motho ea kenang kapa a tsoa.
- Haeba u bona monyako ka pel'a hao o se o ntse o petlana ke batho ba oeleng, ba thellang: ETSA ho sutumelletsa pele. Ho sutumelletsa ka morao ho lemati le petelitsoeng ho tla pshatla batho ba ka pele ho uena le ho u tšoasa phasejeng ea mosi. Hang-hang u ee ka thōko ho bongata ba batho u phalle haufi le lebota ho fumana tsela ea bobeli ea ho tsoa kapa fensetere e mokatong o ka tlaase.
2. Mokhoa oa ho pshatla fensetere ea sebaka sa khoebo ha mamati a petetsane¶
Li-nightclub le mekoallo hangata li na le lifensetere tse mokatong o ka tlase tse pentiloeng ka botšo, tse koahetsoeng ka liboto tsa acoustic plywood, kapa tse kentsoeng ka likhalase tse teteaneng tsa ts'ireletso. Haeba mamati ohle a fihlellehang a petetsane kapa a notletsoe: - Le ka mohla u se ke ua otla kapa ua raha likhalase ka matsoho a sa roala letho kapa lieta tse tšesaane , tse khaolang mothapo oa radial letsohong la letsoho kapa tendon ea Achilles. - Sebelisa lintho tse entsoeng ka tšepe e boima: Tšoara setulo sa tšepe e tiileng, setsi sa tafole sa cast-aron bistro, koporo e laolang bongata ba batho, kapa silindara sa setima-mollo se boima se tsoang ka har'a borakete ea lebota. - Otla hukung ya fenstere ya galase le foreime ya lehong/aluminium muntin, e seng bouncy bohareng ba lakane la galase. Hang ha e robehile, sebelisa maoto a setulo sa bar ho ntša meno a ka tlaase a khalase, ho hula seaparo se boima sa letlalo kapa sa denim holim'a sill e ka tlaase, 'me u pitikise hlooho le mahetla-pele matsoho a hao a itokiselitse ho itšoarela ka thōko ho tsela ka ntle.
Deep 3: Ho tsamaea ka mosi o chefo o sa bonahaleng le mafahla ($ HCN$ le \(CO\))¶
Mollong o ka tlung o kenyelletsang lipolima tsa maiketsetso, ho kenyeletsoa foam ea polyurethane acoustic, mosi oa motlakase oa PVC, lik'hapete tsa nylon, drapes ea sethala sa polyester, le maphephe a vinyl a upholstered VIP, malakabe a bolaea batho ba fokolang haholo ho feta **"Mafahla a Chefo" a mosi oa maiketsetso: Hydrogen Cyanide le Carbon Moonoxide (\(CO\)N$)
Hobaneng ha mosi oa maiketsetso o etsa hore bahlaseluoa ba idibe ka makhetlo a mabeli ho isa ho a mararo¶
- Thermal Upper-Airway Scorching: Limithara tse 1.5 (maoto a 5) ka holim'a fuluru (bophahamo ba hlooho e emeng), mosi o theohang ka har'a sehlopha se tukang o fihla ho 300 ho isa ho likhato tse 600 tsa Celsius (570 ho isa ho 1,100 likhato tsa Fahrenheit). Ho nka moea o le mong o tebileng oa moea oa 400-degree-Celsius ha u eme u otlolohile ho baka edema ea hang-hang ea mocheso (ho ruruha) ea epiglottis le likhoele tsa lentsoe, ho koala tsela e ka holimo ea moea e koaletsoeng laryngospasm.
- Hydrogen Cyanide (\(HCN\)) Cellular Asphyxiation: Lipolasetiki tse nang le naetrojene (polyurethane foam, nylon, ulu, melamine) li ntša likhahla tse phahameng tsa khase ea hydrogen cyanide ha li chesoa ka likamoreng tse se nang oksijene. Ho fapana le carbon monoxide (e tlosang oksijene liseleng tse khubelu tsa mali butle-butle), limolek'hule tsa cyanide li tlama hang-hang ho **cytochrome c oxidase ** ka har'a mitochondria ea boko ba hau le lisele tsa pelo, li koala tlhahiso ea matla a cellular nakong ea **15 ho metsotsoana e 45 **. Mosireletsi ea hemelang ka makhetlo a mararo a mosi o nang le lekoeba le nang le cyanide hang-hang o tsieleha, a ferekane, a lahleheloe ke matla a ho laola maoto a bona, ebe o oela fatše a ilibane.
- Hobaneng Botlaaseng ba Lisentimitara tse 30 ho isa ho tse 60 (Maoto a 1 ho isa ho a 2) bo Ntse bo Faneleha: Kaha mosi o chesang o le matla, mocheso oa stratification o boloka moeli o sa tebang oa moea o pholileng, o hloekileng hantle le fatše nakong ea metsotsoana e 60 ho isa ho e 120 ea mollo.
Mokhoa oa ho tsoa ka phapusing e ntšo ntle le ho lahleha bohareng¶
Ha mosi o motšo o theohela holim’a hlooho ea hao ’me mabone a tima ka har’a phaposi e khōlō e bulehileng (joaloka mokatong oa tantši kapa holo ea mokete), batho ba ferekaneng ba khasang ba otlolohile ka tloaelo ba khasa ka har’a fuluru ho fihlela ba hlōtsoe. Sebelisa Firefighter Wall-Hand Sweep ho e-na le hoo:
- Tlohela matsohong a hao le mangole (kapa belly-crawl) hang-hang: Boloka nko ea hao le molomo ka hare ho 30 centimeters (12 inches) ho tloha fatše. Phefumoloha hanyane ka nko ea hau kapa ka hempe ea k'hothone e omeletseng kapa e kolobisitsoeng ke seno e tšoaretsoeng sefahlehong sa hau ho sefa likaroloana tse kholo tsa mosili o tlabolang.
- Ema ka kotloloho leboteng le haufi la pherimitha 'me u boloke karolo e ka morao ea letsoho la hao e le thetsa:
- Hang ha letsoho la hau le thetsa lebota le kantle kapa la pherimitha, ** le ka mohla u se ke ua tlohela lebota leo **.
- Monyako o mong le o mong oa ho tsoa ka tšohanyetso mohahong o behiloe leboteng la pherimitha. Ka ho khasa ka potlako letlapeng la motheo ka letsoho le le leng le ntse le thellela leboteng ('me letsoho la hau le ntse le fiela hanyane ka pele ho hlooho ea hau ho utloa ho na le litšitiso kapa bareki ba oeleng), u tiiselitsoe hore u tla otla sekhutlo sa monyako ka mor'a metsotsoana ntle le hore u khutlele bohareng ba mokatong oa tantši.
- Ikutlo bakeng sa "panic bar" le monyako: Ha letsoho la hao le otla foreimi e hahelletsoeng leboteng, fihla holimo ho 90 centimeters (36 inches) ho tloha fatše ho utloa tšepe e tšekaletseng panic crash bar, tobetsa boima ba 'mele oa hau ho eona, 'me u tsohe.
Deep Dive 4: Tlhokomelo ea bongaka ka mor'a ho tsoa bakeng sa ho hema mosi le chefo ea cyanide¶
Hang ha uena le baphaphathehi ba bang le tsoa seterateng, suthela bonyane 30 metres (100 feet) hole le moaho ho boloka mamati a ho tsoa a hlakile bakeng sa bareki ba balehang le liphaephe tsa mollo tse fihlang. Hang-hang hlahloba baphonyohi bakeng sa maemo a mararo a behang bophelo kotsing:
- Babelaelloa ba kopantsoe le chefo ea Hydrogen Cyanide (\(HCN\)) le Carbon Monoxide (\(CO\)) ho mophonyohi e mong le e mong ea akhehileng kapa ea ferekaneng:
- Motho leha e le ofe ea lelekiloeng holong ea bosiu kapa mollong oa ka hare oa polymer ea nang le ** mosili nkong ea hae kapa molomong **, o ferekanngoa, o loantšana, o tsielehile, o halefile, kapa o sa tsebe letho **, kapa o na le matla a fokolang a potlakileng o lokela ho phekoloa ke baoki ba fanang ka thuso ea bongaka maemong a tšohanyetso bakeng sa **ka bobeli \(CO\) le chefo e matla ea cyanide ** (bona khabone monoxide le ho hema mosi thuso ea pele).
- Beha bahlaseluoa ba phefumolohang ba sa tsebeng sebakeng sa **lateral recovery position ** ka thōko ho tsela moeeng o hloekileng, 'me u qale CPR hanghang ho mang kapa mang ya sa arabeleng le ya sa phefumoloheng ka tsela e tlwaelehileng. Bolella baoki ba EMS ba fihlang: "Ba phefumoloha mosi o motšo oa polyurethane foam ka har'a sehlopha" kahoo ba fanang ka thuso ea bongaka maemong a tšohanyetso ba ka fana ka 100% ea oksijene e phallanhaholo ** le intravenous hydroxocobalamin (Cyanokit), e tlamang limolek'hule tsa cyanide ho vithamine B12 e se nang kotsi e ntšoang ke liphio.
- Le ka mohla u se ke ua tšela metsi a batang ka lebaka la ho cha ho matla haholo nakong ea mariha (Kotsi ea Hypothermia): Bakeng sa ho chesoa ha karolo e nyane ea botenya matsohong kapa liphatleng, pholisa butle ka metsi a hloekileng a phallang metsotso e 20; Leha ho le joalo, haeba mophonyohi a e-na le ho chesa ho hoholo ho feta > 20% ea 'mele oa hae, koahela libaka tse cheleng ka bolokolohi ka matlapa a hloekileng, a omeletseng kapa filimi e khomarelang ea polasetiki, 'me u lule u futhumetse ho thibela ho makala ho bolaeang le hypothermia. ho chesoa ho matla le ho phatloha ha lik'hemik'hale).
- Le ka mohla u se ke ua hlola u kena sebakeng se tukang ho ea batla motsoalle: Ho feta karolo ea 30 lekholong ea batho ba baholo ba nang le bokhoni ba shoang haufi le menyako ea mollo ba ne ba se ba balehile ka thōko ho tsela 'me ba khutlela ka hare ho mosi o motšo oa cyanide ho ea batla mohlankana, kharebe kapa ngoan'eno, hangata ha motsoalle eo a ne a se a phonyohile ka lemati le ka morao la kichineng ka lehlakoreng le leng la moaho. Ho e-na le hoo, tšoara ofisiri ea pele ea litima-mollo e fihlang, u supe monyako kapa fensetere eo motsoalle oa hao a qetetseng ho bonoa ho eona, 'me u hlahlobe sebaka se khethiloeng sa ho kopanya lelapa la mapolesa ka mose ho seterata.
Tlhahlobo ea polokeho ea sebaka sa metsotsoana e 15: lifolakha tse khubelu tse 5 tse bolelang hore o lokela ho tsoa pele lenaneo le qala.¶
Mollo o mong le o mong o moholo oa li-nightclub le konsarete ea ka tlung historing ea sejoale-joale o etsahetse sebakeng se bonts'ang litlolo tse hlakileng, tse seng molaong tsa melao ea mollo eo bareki ba ileng ba feta ho eona. Ha u kena ka har'a tlelabo ea ka tlas'a lefatše, sebaka sa meketjana ea pop-up, kapa holo ea konsarete, khutlela morao 'me u batle puseletso haeba u bona e 'ngoe ea lifolakha tsena tse khubelu tse kotsi:
- 1. Foam ya "egg-crate" polyurethane foam, khateboto, dikhapete, kapa mahlaku a polasetiki a kgomaretseng mabota kapa siling: Sheba mabota ka morao ho sethala le siling e ka hodimo. Haeba u bona materase a sa pentoang a "egg-crate" a sa pentiloeng, masaka a burlap, joang bo omeletseng ba bamboo kapa botala bo botala bo lepeletseng haufi le mabone a sethala se chesang, tloha hang-hang.
- 2. Indoor pyrotechnics, fireworks fountains ("gerbs"), kapa giant champagne-bottle sparklers used under the low siling: Indoor pyrotechnics hloka siling e phahameng e sa cheng, pyrotechnicians tse laesenseng, le lisebelisoa tse sebetsang tsa ho fafatsa mollo. Haeba kamore e ka tlas'a siling e ka tlas'a siling kapa bareng e khantša liliba tsa shaoara-ea-sparks kapa e fana ka li-sparklers tse ngata tse tukang ka tlas'a masela a masela kapa siling ea foam, tsoa pele a hotetsoa.
- 3. Mabati a notletsoeng, a tlanngoeng ka liketane kapa a koetsoeng ka thepa ea ka tlung a koetsoe ka thepa ea ka tlung: Sheba mamati a TSOA a bobeli a lehlakoreng le ka morao la phaposi. Haeba u bona ketane ea libaesekele, sekoahelo sa libaesekele, kapa seretse se thellang sebakeng sa ho tšoha (se sebelisoang ke beng ba batho ba sa tšepahaleng ho thibela batho ho nyenyelepa metsoalle mahala), kapa haeba tsela ea ho tsoa e phuthetsoe ka mabokose a joala le litafole, tloha sebakeng seo ’me u tlalehele Mookameli oa Mollo oa moo hang-hang.
- 4. Ho petetsane ho feteletseng moo o sa khoneng ho tsamaea ka bolokolohi ho ea ntloaneng kapa bareng: Tlas'a Khoutu ea Machaba ea Mollo (IFC) le NFPA 101, libaka tsa konsarete tsa phaposi ea ho ema li na le meeli e thata ea ho jara batho ho ipapisitsoe le bophara ba menyako ea ho tsoa kaofela. Haeba kamore e ka tlase kapa e mokatong o ka holimo e tletse ka thata sefubeng ho ea morao mokatong oohle hoo o sa khoneng ho tsamaisa matsoho kapa ho tsamaea ho ea tsoa, mojaro oa motho o fetisitsoe ntle ho molao.
- 5. Sebaka se ka tlase kapa se mokatong o ka holimo se nang le litepisi tse MOTHO feela tse moqotetsane: Sebaka sefe kapa sefe sa kopano se nang le batho ba fetang 50 TŠOANTŠA ho ba le matsoalo a mabeli a ikemetseng, a arohaneng haholo. Le ka mohla u se ke ua lula bareng ea mokatong o ka tlase kapa tlelabong ea mokato oa bobeli o nang le litepisi tse moqotetsane tse lebisang seterateng.
Nka CPR ea matsoho 'me u hule mosi thupelong ea thuso ea pele
Ha batho ba bangata ba tloha mohahong o tletseng mosi ka nako e le 'ngoe, batho ba emeng ka thōko ho tsela ba fana ka metsotso e mehlano ea bohlokoa ea tsamaiso ea sefofane le ho tsosolosa pele liambulense tse lekaneng li fihla. Ho tlatsa matsoho a tiisitsoeng ho CPR, AED, le thupelo ea thuso ea pele ho tsoa ho Red Cross kapa St John Ambulance ho u lokisetsa ho pholosa bophelo ka mor'a ho falla.
Lipotso tse botsoang khafetsa¶
How fast does a nightclub or indoor venue fire become unsurvivable if acoustic wall foam catches fire?
Full-scale fire reconstructions by the National Institute of Standards and Technology (NIST) prove that when stage pyrotechnics or sparks ignite non-flame-retardant polyurethane acoustic foam, the fire climbs to the ceiling in under 15 seconds and drives thick, pitch-black toxic smoke all the way down to the floor within 60 to 90 seconds. Total room flashover (where temperatures exceed 600 to 800 degrees Celsius / 1,100 to 1,470 degrees Fahrenheit and oxygen drops below survivable levels) occurs in just 90 to 120 seconds. That is why you must move toward an exit at Second Zero the instant you see flame touch a wall or ceiling.
Why do most people get trapped at the main front entrance during a nightclub fire when other exits are wide open?
Under sudden stress and darkness, human beings default to an instinctive behavioral reflex called "entrance fixation" (or the homing instinct): 80 to 90 percent of people in a building try to leave through the exact same front door they walked through when they arrived, completely ignoring illuminated emergency exit doors on the sides or back of the room. Because main club entrances are narrow choke points obstructed by ticket booths, turnstiles, and coat-check counters, hundreds of surging patrons wedge together in the front doorway within 45 seconds, creating an impassable human pileup while rear and kitchen exits remain nearly empty.
Why is restaurant or bar kitchen access such an important survival secret during a venue emergency?
Every commercial bar, restaurant, banquet hall, and nightclub has a back-of-house service corridor or kitchen equipped with a wide, heavy-duty exterior steel door leading directly to the rear alley or loading dock for deliveries and trash removal. Because almost no patrons think to walk behind the bar or through the swinging kitchen doors, that rear service exit is almost always free of crowd crush and separated from the main dance floor by interior walls.
What makes polyurethane foam smoke so much deadlier than ordinary wood smoke?
Polyurethane foam, nylon carpets, and synthetic upholstery are nitrogen-containing petroleum plastics. When they burn in an enclosed room, they release massive concentrations of hydrogen cyanide (HCN) gas alongside carbon monoxide (CO). Inhaling just two or three breaths of superheated hydrogen cyanide smoke poisons the mitochondria inside brain and heart cells, causing sudden confusion, paralysis of the legs, and loss of consciousness within 15 to 45 seconds. Always drop below the black smoke layer to within 30 to 60 centimeters (1 to 2 feet) of the floor where cooler air remains.
How do you find an exit door if the room goes completely pitch black from smoke?
Never crawl straight out into the middle of a dark dance floor or hall, where it is easy to become disoriented and crawl in circles. Instead, drop onto your hands and knees (keeping your nose within 30 centimeters / 12 inches of the floor), crawl straight to the nearest perimeter wall, and keep the back of one hand sliding continuously along the baseboard wall as you move forward. Because all exit doors are built into perimeter walls, following the wall by touch guarantees you will reach a doorframe corner and panic bar within seconds.
What should you do if the doorway ahead of you is jammed with fallen people who cannot move?
Stop pushing forward immediately. Pushing into the back of a jammed doorway pileup increases the crushing asphyxiation pressure on the people wedged at the bottom and traps you in the smoke funnel. Immediately pivot sideways along the wall out of the crowd stream to reach an alternate side/kitchen exit, or grab a heavy metal bar stool or steel fire extinguisher cylinder to smash out the corner of a ground-floor window, sweep the bottom frame clear of glass shards with a jacket, and climb out.
Mehloli e hlahlobiloe¶
- Setsi sa Sechaba sa Maemo le Theknoloji (NIST, United States): Tlaleho ea Patlisiso ea Setsebi ea The Station Nightclub Fire (NIST NCSTAR 2: Polyurethane Foam Ignition, Flashover Timeline, le Bongata ba Phallo ea Moetso).
- Mokhatlo oa Sechaba oa Tšireletso ea Mollo (NFPA, United States): *NFPA 101 Life Safety Code (Assembly Occupancy Egress, Panic Hardware, Sprinklers, le Interior Finish Flame-Spread Standards) le NFPA 1126 Standard bakeng sa Tšebeliso ea Pyrotechnics Pele ho Bamameli ba Haufi *.
- United States Fire Administration (USFA / FEMA, United States): *Seboka sa Sechaba le Litaelo tsa Tlhahlobo ea Tšireletso ea Mollo oa Nightclub le Thupelo ea Bongata ba Tsamaiso *.
- Ofisi ea Lehae le Mookameli oa Bophelo bo Botle le Tšireletseho (HSE, United Kingdom): Tlhahlobo ea Kotsi ea Tšireletso ea Mollo: Libaka tse Nyenyane le tse Mahareng tsa Kopano, Liholo tsa Lipapali, Lifilimi, le Meaho e Tšoanang (Regulatory Reform Taelo ea Taelo ea Tšireletso ea Mollo).
- Cyanide Toxicity le Smoke Inhalation Consensus Panel (Meriana ea Tšohanyetso / Toxicology): * Prehospital Management ea Acute Cyanide le Carbon Monoxide Poisoning ka Mello ea Sebopeho se Koaletsoeng *.