Tshawb xyuas seb kev faib thaj chaw muaj kev puas tsuaj (Zone 0, 1, 2, Chav Kawm I/II, Kev faib tawm) cuam tshuam rau kev xaiv tawg -cov pov thawj cranes thiab tawg- pov thawj nyiaj siv ua haujlwm cranes. Ua kom muaj kev nyab xeeb, ua raws, thiab tus nqi- ua haujlwm crane ua haujlwm zoo hauv koj qhov chaw.
Ntsiab Cai
Cov chaw muaj kev phom sij txhais tau tias qhov twg cov pa hluav taws xob, vapors, lossis hmoov av tuaj yeem ua rau muaj kev pheej hmoo, thiab cuam tshuam ncaj qha rau hom tawg - pov thawj crane koj yuav tsum xaiv.
Kev faib cov cheeb tsam (0, 1, 2 rau cov pa roj; 20, 21, 22 rau plua plav) thiab NEC Chav Kawm / Kev faib (I / II, Division 1/2) txiav txim siab txog qib kev tiv thaiv crane.
Xaiv qhov tsis ncaj ncees lawm crane tuaj yeem ua rau muaj kev phom sij rau kev nyab xeeb, khoom siv puas tsuaj, teeb meem kev tswj hwm, thiab cov nqi poob qis.
Kev faib tawm kom raug pab cov neeg yuav khoom xaiv cov cranes uas muaj kev nyab xeeb, ua raws, tus nqi - zoo, thiab sib phim rau kev pheej hmoo ua haujlwm.
Nco ntsoov sab laj nrog cov kws tshaj lij kev nyab xeeb thiab muaj ntawv pov thawj tawg -cov tuam txhab ua pov thawj crane ua ntej yuav khoom.
Taw qhia
Vim li cas Hazardous Zone Classifications Matter
Thaum koj tab tom yuav tawg -cov ntaub ntawv pov thawj cranes lossis tawg- pov thawj nyiaj siv ua haujlwm cranes, kev nkag siab txog thaj chaw muaj kev phom sij yog ntau tshaj li cov lus piav qhia xwb- nws yog tus yuam sij rau kev nyab xeeb thiab ua haujlwm tau zoo. Txhua qhov chaw ua lag luam muaj thaj chaw uas muaj cov pa taws, vapors, lossis hmoov av. Yog tias lub crane tsis sib haum rau qhov kev pheej hmoo, nws tuaj yeem ua tsis tau, ua rau, lossis ua rau muaj xwm txheej loj.
Kev faib cov cheeb tsam txaus ntshai qhia rau koj:
Qhov twg cov huab cua tawg tuaj yeem tshwm sim
Muaj pes tsawg zaus lawv yuav tshwm sim
Hom kev tiv thaiv crane yog tsim nyog
Tau txais txoj cai no ua kom ntseeg tau tias koj lub crane yuav ua haujlwm zoo nyob rau hauv nws qhov chaw npaj, yam tsis muaj qhov tsim nyog tshaj - cov lus qhia lossis kev phom sij zais.
Kev pheej hmoo ntawm kev xaiv qhov yuam kev Crane
Kev yuav qhov tawg tsis raug- pov thawj crane tsis yog ib qho teeb meem ntawm cov ntaub ntawv xwb. Nws tuaj yeem tsim qhov tiag - lub ntiaj teb qhov tshwm sim:
Kev Nyab Xeeb Kev Nyab Xeeb: Lub cev muaj zog, nres, lossis cov tshuab hluav taws xob tuaj yeem ua rau cov pa taws lossis plua plav.
Kev ua haujlwm poob qis: Cov khoom siv tsis ua haujlwm nres kev tsim khoom, ncua sijhawm sijhawm thiab nce nqi.
Cov teeb meem kev tswj hwm: Kev siv cov khoom siv tsis yog- ua raws li cranes tuaj yeem ua rau raug nplua lossis raug yuam kaw thaum kuaj xyuas.
Txawm tias qhov ua yuam kev me me, zoo li xav tias Zone 2-rated crane muaj kev nyab xeeb rau thaj tsam 1, tuaj yeem muaj qhov tshwm sim loj.
Vim li cas cov neeg yuav khoom yuav tsum saib xyuas
Rau cov neeg yuav khoom crane, cov txiaj ntsig ntawm kev nkag siab txog thaj chaw muaj kev phom sij yog cov tswv yim thiab tam sim ntawd. Sib piv cov crane rau cov nroj tsuag kev faib ua kom ntseeg tau:
Kev nyab xeeb ua haujlwm rau cov neeg ua haujlwm thiab cov khoom siv
Ua raws li cov qauv xws li IEC / ATEX lossis NEC
Kev ua tau zoo ntawm tus nqi los ntawm kev zam dhau - cov khoom siv tshwj xeeb
Clearer tus neeg muag khoom kev taw qhia rau cov lus hais thiab kev tawm tswv yim
Hauv luv luv, kev paub txog thaj chaw muaj kev phom sij rau pem hauv ntej pab koj xaiv qhov raug tawg - pov thawj nyiaj siv ua haujlwm crane, tiv thaiv koj cov neeg ua haujlwm, ua kom koj cov nroj tsuag khiav zoo, thiab zam tsis tau cov nqi npaj txhij.
Txheej txheem cej luam ntawm Hazardous Area Classifications
Dab tsi yog Qhov Chaw Muaj Teeb Meem?
Cov chaw muaj kev phom sij yog cov chaw nyob hauv cov nroj tsuag uas muaj cov pa taws, vapors, plua plav, lossis cov fibers, uas ua rau muaj kev pheej hmoo ntawm hluav taws kub lossis tawg. Cov chaw no tuaj yeem pom hauv:
Cov nroj tsuag tshuaj
Cov chaw ua qoob loo
Hlau rhiav thiab foundries
Refineries thiab chaw cia khoom
Vim li cas Qhov no tseem ceeb rau kev tawg -Cov khoom pov thawj
Xaiv qhov kev tawg raug cai - pov thawj crane lossis tawg - pov thawj overhead crane nyob ntawm kev nkag siab cov cheeb tsam no. Kev faib tawm ntawm koj cov nroj tsuag txiav txim siab:
Yuav tsum muaj kev tiv thaiv qib rau lub cev muaj zog, nres, thiab cov tshuab hluav taws xob
Tsim thiab sealing yuav tsum tau rau crane enclosures
Cov yam ntxwv kev nyab xeeb los tiv thaiv sparks los yog overheating
Cov ntsiab lus tseem ceeb: Xaiv lub crane yam tsis xav txog thaj chaw muaj kev phom sij tuaj yeem ua rau muaj kev pheej hmoo ntawm kev nyab xeeb, tsis ua raws li -, thiab cov nqi poob qis.
Zone Classifications (IEC/ATEX Standards)
Gas thiab Vapor Environments
Zone Risk Level Piv txwv Crane Pom Zoo
Zone 0 Nruam muaj cov pa roj tawg hauv cov tshuaj reactors Siab -qib tawg- pov thawj nyiaj siv ua haujlwm cranes nrog cov khoom ntim tag nrho
Zone 1 Tej zaum yuav muaj nyob rau hauv ib txwm ua haujlwm Cov cheeb tsam ze ntawm lub tank ntim tshuaj nruab nrab -qib tawg- cov khoom pov thawj cranes, tau lees paub rau Zone 1
Zone 2 Tsis tshua muaj los yog luv luv -lub sij hawm muaj chaw cia chaw rau cov kua dej flammable Txheem tawg-cov ntaub ntawv pov thawj cranes rau Zone 2, nrog rau kev sib khi yooj yim
Tswv yim tswv yim: Tsis txhob xav tias Zone 2 crane muaj kev nyab xeeb rau thaj tsam 1. Kev sib txuam ntawm thaj chaw raug zam kom tsis txhob muaj xwm txheej thiab cov khoom siv tsis ua haujlwm.
Plua plav ib puag ncig
Zone Risk Level Piv txwv Crane Pom Zoo
Zone 20 Nruam muaj cov plua tshauv combustible hauv grain silos Plua plav - nruj tawg- pov thawj overhead cranes, tag nrho cov cav tov
Cheeb tsam 21 Tej zaum yuav muaj nyob rau lub sijhawm ua haujlwm ib txwm muaj Kev tsim khoom lossis chaw cia khoom plua plav- tiv thaiv tawg- cov khoom pov thawj cranes nrog cov ntaub thaiv npog
Zone 22 Tsis tshua muaj los yog luv luv-lub sij hawm muaj Kev Saib Xyuas lossis tu thaj chaw Txheem plua plav- tiv thaiv tawg- cov khoom pov thawj cranes
Tswv yim tswv yim: Rau thaj tsam plua plav, tsom rau kev sib khi, tiv thaiv cov ntaub thaiv npog, thiab tiv thaiv cov plua plav tawm ntawm lub cev muaj zog thiab cov khoom siv hluav taws xob.
Cov ntsiab lus rau cov neeg yuav khoom:
Kev nkag siab txog ob qho tib si roj thiab plua plav yog qhov tseem ceeb. Nws ua kom koj tawg tau -cov ntaub ntawv crane:
Ua kom muaj kev phom sij rau ib puag ncig
Ua haujlwm ruaj ntseg thiab ntseeg tau
Ua raws li IEC / ATEX cov qauv
Zam zam tus nqi tsis tsim nyog los ntawm ntau tshaj - qhia
Class & Division Classifications (NEC/North American Standards)
North American cov qauv qhia cov chaw muaj kev phom sij los ntawm Chav Kawm (hom kev phom sij) thiab Division (qhov yuav tshwm sim).
Qhov no pab cov neeg yuav khoom xaiv qhov raug tawg -cov ntaub ntawv pov thawj crane rau roj, vapor, lossis plua plav ib puag ncig.
Class I – Flammable Gases or Vapors
Division Hazard Level Piv txwv Crane Requirement
Division 1 Tam sim no thaum lub sijhawm ua haujlwm ib txwm siv tshuaj ua cov chaw ua haujlwm nrog cov vapors tas mus li Kev lees paub tawg tag- cov khoom pov thawj cranes lossis tawg- pov thawj nyiaj siv ua haujlwm cranes nrog kaw lub cev muaj zog, xaim, thiab cov khoom siv hluav taws xob
Division 2 Tam sim no tsuas yog nyob rau hauv cov xwm txheej txawv txav Cov chav cia rau cov kua hluav taws xob uas muaj qhov cua zoo Standard tawg- cov ntaub ntawv pov thawj nyiaj siv ua haujlwm cranes nrog cov yam ntxwv tiv thaiv yooj yim
Class II – Combustible Dust
Division Hazard Level Piv txwv Crane Requirement
Division 1 Tam sim no thaum lub sijhawm ua haujlwm ib txwm muaj kev tuav qoob loo lossis cov chaw ua hmoov hmoov hmoov av - nruj tawg- pov thawj nyiaj siv ua haujlwm cranes, kaw lub cev muaj zog, kaw lub tshuab hluav taws xob
Division 2 Tam sim no tsuas yog nyob rau hauv cov xwm txheej txawv txav Kev tu lossis tu thaj chaw uas muaj plua plav qee zaus tuaj yeem khaws cov plua plav Standard- tiv thaiv tawg- cov khoom pov thawj cranes
Cov Lus Qhia rau Cov Neeg Yuav Khoom
- Txheeb xyuas Cov Chav Kawm thiab Kev faib ntawm koj thaj chaw muaj kev phom sij ua ntej xaiv lub crane.
- Sib piv cov crane ntsuas rau thaj tsam kom muaj kev nyab xeeb, txo lub sijhawm poob, thiab zam kev nplua nplua.
- Rau cov nroj tsuag uas muaj kev phom sij sib xyaw, sab laj nrog cov ntaub ntawv pov thawj tawg - cov khoom pov thawj crane los xaiv cov kev pab them nqi tsim nyog.
Qhov tseem ceeb Takeaway: Siv cov lus qhia kev faib tawm no ua kom koj xaiv lub crane uas muaj kev nyab xeeb, ua raws, thiab txhim khu kev qha, txawm tias nws yog tus qauv tawg -cov ntaub ntawv pov thawj crane lossis foob pob tawg tag- pov thawj overhead crane.
Phau Ntawv Qhia Tswv Yim rau Cov Neeg Yuav Khoom tawg -Cranes pov thawj
1. Kev txiav txim siab koj thaj chaw cog qoob loo
Ua ntej xaiv ib lub crane, nws yog ib qho tseem ceeb kom paub qhov kev faib tawm txaus ntshai ntawm koj qhov chaw.
Tshawb xyuas cov ntaub ntawv thiab cov ntawv ceeb toom xws li:
Cov ntaub ntawv kev nyab xeeb
Kev ntsuas phom sij
Kev ceeb toom txog hluav taws kub
Qhov no ua kom ntseeg tau tias qhov tawg tau xaiv - pov thawj crane lossis tawg - pov thawj nyiaj siv ua haujlwm crane tsim nyog rau ib puag ncig.
2. Xaiv Txoj Cai tawg -Cov pov thawj Crane
Thaum koj paub koj cov nroj tsuag thaj tsam, tsom rau kev xaiv lub crane uas ua tau raws li qib kev tiv thaiv uas yuav tsum tau ua.
Xav txog cov hauv qab no:
Ua raws li daim ntawv pov thawj crane rau koj thaj chaw (IEC / ATEX lossis NEC)
Lub cev muaj zog enclosures, xaim, braking systems, thiab kev tiv thaiv nta
Ib puag ncig tej yam kev mob: kub, av noo, corrosive gases, thiab plua plav hom
Qhov no yuav pab kom muaj kev nyab xeeb, txhim khu kev qha, thiab ua haujlwm ua haujlwm crane.
3. Zam kev yuam kev ntau
Ntau tus neeg yuav khoom ua yuam kev tsis tsim nyog thaum xaiv tawg - cov khoom pov thawj cranes. Feem ntau pitfalls muaj xws li:
Siv qhov qis dua - ntsuas crane nyob rau hauv qhov siab dua - thaj chaw muaj kev pheej hmoo, tsim kom muaj kev nyab xeeb
Kev siv nyiaj ntau dhau ntawm qhov tsis tsim nyog siab - ntsuas cranes
Tsis quav ntsej cov kev hloov pauv hauv cov txheej txheem cog uas tuaj yeem hloov cov kev faib ua phom sij
Paub txog cov no yuav pab koj xaiv txoj cai crane yam tsis muaj kev siv nyiaj ntau lossis cuam tshuam txog kev nyab xeeb.
Qhov tseem ceeb Takeaway: Ua tib zoo ntsuam xyuas koj thaj chaw cog, nkag siab txog cov ntawv pov thawj uas yuav tsum tau ua, thiab zam kev ua yuam kev ntau kom ntseeg tau tias koj qhov tawg -pov thawj crane lossis tawg- pov thawj overhead crane muaj kev nyab xeeb, txhim khu kev qha, thiab tus nqi- siv tau.
Xaus – Summary & Key Takeaways
Kev nkag siab txog thaj chaw muaj kev phom sij yog qhov tseem ceeb rau kev nyab xeeb thiab ua raws kev ua haujlwm ntawm kev tawg - cov khoom pov thawj cranes thiab tawg - pov thawj overhead cranes. Los ntawm kev paub txog koj lub chaw muaj kev pheej hmoo theem, koj xyuas kom meej tias cov cuab yeej koj xaiv haum rau ib puag ncig thiab zam kev nyab xeeb
