2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov cuab yeej siv zog, suav nrog cov khoom siv hluav taws xob, yuav tsum yog khaws cia kom raug thiab tsis muaj plua plav, av, roj, tshuaj thiab lwm yam khib nyiab. Cov no yog tag nrho cov accelerants uas, yog ignited, tsim los yog txuas ntxiv qhov teeb meem arc flash. Lub thawv hluav taws xob, cov txee thiab qhov rooj rau qhov chaw hluav taws xob yuav tsum kaw thiab ruaj ntseg.
Thaum twg yuav tsum tau ua haujlwm hluav taws xob raug txiav txim siab?
Kev Ntsuas Hluav Taws Xob Ua Haujlwm yuav tsum ua kom tiav rau txhua txoj haujlwm ntawm lossis ze ze cov hluav taws xob hluav taws xob ntau dua 50 volts, nrog rau kev kuaj mob raws li tau piav qhia saum toj no, qhov chaw hluav taws xob Kev nyab xeeb ua haujlwm tsis tuaj yeem tsim tau.
Yuav ua li cas yog cov khoom siv hluav taws xob muaj zog?
Energized - Hluav taws xob txuas nrog lossis muaj qhov hluav taws xob (2004 NFPA 70E), lossis hluav taws xob them kom muaj peev xwm txawv ntawm lub ntiaj teb nyob ib puag ncig.
Yuav ua li cas ua ntej tso cai rau leej twg ua haujlwm ntawm cov khoom siv hluav taws xob?
Thaum nws tsim nyog los ua haujlwm ntawm cov khoom siv zog, OSHA 1910.333(a)(2) yuav tsum tau siv kev nyab xeeb txog kev ua haujlwm thiab NFPA 70E Tshooj 110.8(B) (1) yuav tsum muaj Kev Ntsuas Hluav Taws Xob Hluav Taws Xob ua ntej ua haujlwm ntawm cov khoom siv nyob ua haujlwm ntawm 50 volts thiab siab dua.
Raws li cov xwm txheej twg OSHA yuav tso cai ua haujlwm ntawm cov khoom siv hluav taws xob lossis cov khoom siv hluav taws xob?
Tsuas yog cov neeg ua haujlwm tsim nyog tuaj yeem ua haujlwm lossis nrog cov kab hluav taws xob raug pom lossis cov khoom siv. Tsuas yog cov neeg ua haujlwm tsim nyog tuaj yeem ua haujlwm hauv thaj chaw uas tsis muaj kev tiv thaiv, tsis muaj kev tiv thaiv kab mob los yog qhov chaw ntawm khoom siv ua haujlwm ntawm 50 volts lossis ntau dua.
Pom zoo:
Puas yog kev siv hluav taws xob siv hluav taws xob?
Usability engineering yog kev qhuab qhia uas tsom mus rau kev txhim kho kev siv tau ntawm kev sib tham sib. Nws rub tawm cov kev xav los ntawm kev tshawb fawb hauv computer thiab kev puas siab puas ntsws los txhais cov teeb meem uas tshwm sim thaum siv cov kab ke.
Puas siv hluav taws xob hauv qhov hluav taws xob tuaj yeem siv rau ntawm qhov loj?
Txawm hais tias tsawg dua, lwm hom kev siv hluav taws xob hauv av tuaj yeem siv los muab ntau lub zog ntau dua. Tapping qhov chaw ntawm cov dej kub faus rau hauv qab lub ntiaj teb saum npoo tuaj yeem muab cua sov rau cov neeg coob coob, thiab tsim kom muaj zog txaus los tsim hluav taws xob loj.
Lub tshuab hluav taws xob twg siv rau hauv hluav taws xob multimeter?
Nws tseem hu ua qhov ntsuas hluav taws xob-ohm. Kev piav qhia: AC nrog rau DC voltage, tam sim no thiab tsis kam tuaj yeem ntsuas los ntawm kev siv lub tshuab hluav taws xob multimeter. Lub hauv paus Circuit Court ntawm multimeter yog ua los ntawm d.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
