Hauv kev tsim hluav taws xob engineering, hluav taws xob hluav taws xob engineering, thiab kev tsim vaj tsev hauv nroog, hluav taws kub - cov kab hluav taws xob tiv thaiv yog cov khoom siv tseem ceeb rau kev ua kom muaj kev nyab xeeb hluav taws thiab yog "txoj sia" ntawm txhua qhov hluav taws xob tiv thaiv hluav taws xob. Ntau tus neeg siv feem ntau cuam tshuam cov hluav taws kub - cov kab hluav taws xob tiv taus nrog cov nplaim taws zoo tib yam - cov kab hluav taws xob tsis zoo, ua rau kev xaiv tsis raug engineering thiab tsis lees txais. Kab lus no piav qhia txog qhov yooj yim thiab nkag siab tias qhov hluav taws kub- cov kab hluav taws xob tiv thaiv yog dab tsi, lawv txoj hauv kev ua haujlwm, kev faib tawm, qhov sib txawv ntawm cov nplaim hluav taws- cov kab hluav taws xob tsis zoo, cov xwm txheej siv tau, thiab kev ceev faj txog kev tsim kho, pab txhua tus neeg paub txog kev paub txog hluav taws- cov kab hluav taws xob tiv thaiv.
I. Lub ntsiab txhais ntawm hluav taws kub- cov kab hluav taws xob tiv taus
Hluav taws kub- cov kab hluav taws xob tiv taus yog ib hom kab tshwj xeeb uas muaj qhov tshwj xeeb siab - qhov kub thiab txias muaj peev xwm tiv taus hluav taws. Lawv xa mus rau cov xov tooj hluav taws xob tshwj xeeb uas tuaj yeem tswj hwm lub zog ib txwm muaj thiab kev ua haujlwm rwb thaiv tsev rau qee lub sijhawm raws li cov xwm txheej ntawm cov nplaim taws kub hnyiab thiab lub sijhawm hlawv raws li tau teev tseg hauv cov qauv hauv tebchaws.
Thaum cov kab hluav taws xob zoo tib yam ntes hluav taws, txheej txheej rwb thaiv tsev melts, carbonizes, thiab ntog, ncaj qha ua rau luv luv Circuit Court thiab hluav taws xob, thiab cov khoom siv tsis ua haujlwm tag nrho. Txawm li cas los xij, hluav taws kub- cov kab hluav taws xob tiv taus tuaj yeem tswj xyuas lub voj voog txuas ntxiv mus ib ntus thaum muaj hluav taws, ua kom muaj kev ua haujlwm tsis tu ncua ntawm hluav taws- cov khoom siv sib ntaus sib tua, thiab muab lub sijhawm tseem ceeb rau kev khiav tawm ntawm cov neeg ua haujlwm, kev tua hluav taws, thiab kev cawm thaum muaj xwm txheej ceev.
Hauv cov ntsiab lus: Cov kab hluav taws xob zoo ib yam poob lub zog thaum hluav taws, thaum hluav taws kub - cov kab hluav taws xob tiv thaiv tsis poob lub zog thaum hluav taws.
II. Lub hauv paus ntsiab lus ua haujlwm ntawm hluav taws kub- cov kab hluav taws xob tiv taus
Hluav taws kub- cov kab hluav taws xob tiv taus tuaj yeem tiv taus siab - kub combustion vim tias txheej txheej ntawm tus neeg xyuas pib tau nce ntxiv nrog ib lossis ntau txheej ntawm mica daim kab xev hluav taws kub - cov khaubncaws sab nraud povtseg. Mica yog cov khoom siv tsis zoo hauv cov ntxhia uas tsis muaj -combustibility, siab -kub tsis kam, thiab ruaj khov rwb thaiv tsev.
Lub hauv paus ntsiab lus ntawm cov txheej txheem combustion yog raws li hauv qab no: Ua ntej, cov txheej txheem txheej txheej thiab cov txheej txheem rwb thaiv tsev zoo tib yam ntawm cov kab hluav taws xob raug hlawv tag nrho los ntawm nplaim taws; the multiple layers of wrapped mica tape will form a hard and dense high-temperature-resistant insulation protection layer on the surface of the conductor, effectively isolating the high temperature and flame, protecting the copper conductor from short circuits and breakdown, and ensuring continuous power supply within the standard burning time.
Nws yuav tsum raug sau tseg tias hluav taws kub- cov kab hluav taws xob tiv thaiv tsis yog "yeej tsis kub hnyiab", lawv tsuas yog tswj hwm lub zog hluav taws xob hauv qhov ntsuas kub thiab lub sijhawm txwv raws li cov qauv hauv tebchaws, thiab yuav ua tsis tiav tom qab dhau lub sijhawm hlawv.
III. Kev faib hluav taws xob- cov kab hluav taws xob tiv taus
Raws li cov qauv hluav taws xob hauv tsev, hluav taws xob- cov kab hluav taws xob tiv thaiv feem ntau muab faib ua ob yam hluav taws kub- qib tiv taus: qib A thiab qib B. Ob qib muaj qhov sib txawv ntawm qhov kub thiab txias thiab daim ntawv thov scenarios:
1. A-qib hluav taws kub-resistant (qib siab tshaj)
Muaj peev xwm tiv taus 950℃txog 1000℃siab - kub kub combustion, nrog rau lub sijhawm hluav taws kub tsis tu ncua ntawm 90 feeb. Nws yog qhov tsim nyog rau thawj-chav hluav taws xob tiv thaiv qhov chaw tseem ceeb xws li siab- cov tsev nce siab, subways, tunnels, tsev kho mob, thiab cov chaw loj, thiab yog qhov kev xaiv zoo tshaj plaws rau siab - qauv kev xaiv engineering.
2. B-qib hluav taws-resistant (qib pa)
Muaj peev xwm tiv taus 750℃txog 800℃nplaim taws combustion, nrog lub sijhawm hluav taws kub tsis tu ncua ntawm 90 feeb. Nws feem ntau yog siv rau hauv cov tsev pej xeem zoo tib yam thiab kev sib txuas hluav taws xob dav dav.
Hauv cov qauv kev lag luam, NH yog cov cai tshwj xeeb rau hluav taws kub-cov kab hluav taws xob tiv thaiv, thiab cov qauv siv xws li NH-YJV, NH-BV, thiab lwm yam.
IV. Qhov sib txawv tseem ceeb ntawm hluav taws kub- cov kab hluav taws xob tiv taus thiab nplaim taws- cov kab hluav taws xob tiv thaiv
Hauv kev siv engineering, feem ntau cov neeg tsis meej pem hluav taws- cov kab hluav taws xob tiv thaiv (NH) nrog cov nplaim hluav taws- cov kab hluav taws xob (ZR), tab sis lawv muaj qhov sib txawv kiag li thiab tsis tuaj yeem hloov pauv rau ib leeg:
1. Nplaim taws-cov kab hluav taws xob (ZR)
Lub luag haujlwm tseem ceeb yog los tiv thaiv kev sib kis ntawm hluav taws. Nplaim taws- cov kab hluav taws xob tsis yooj yim txuas ntxiv mus txuas ntxiv thiab tuaj yeem tua lawv tus kheej thaum nyob deb ntawm qhov hluav taws kub, tiv thaiv hluav taws los ntawm kev sib kis ntawm cable tais thiab cov kav dej ntawm qhov loj. Txawm li cas los xij, thaum cov txheej txheem hluav taws kub combustion, nplaim hluav taws- cov kab hluav taws xob tsis zoo yuav poob ncaj qha thiab tsis tuaj yeem lav qhov kev ua haujlwm ntawm hluav taws- cov khoom siv tua hluav taws.
2. Hluav taws kub-cov kab hluav taws xob tiv taus (NH)
Lub luag haujlwm tseem ceeb yog los xyuas kom meej lub zog txuas ntxiv thaum muaj hluav taws kub. Cov kab hluav taws xob tuaj yeem raug hluav taws kub hnyiab tau, tab sis nws tswj xyuas lub voj voog txuas ntxiv nyob rau hauv lub sijhawm txwv, ua kom lub cev ua haujlwm ntawm cov cuab yeej tseem ceeb xws li cov twj tua hluav taws, cov kiv cua tso pa tawm, teeb pom kev kub ceev, thiab lub tswb nrov.
Hauv ib kab lus: Nplaim taws-tshuaj tiv thaiv yog tiv thaiv kev sib kis, hluav taws kub- tiv taus yog los xyuas kom muaj hluav taws xob; Kev tiv thaiv hluav taws yuav tsum siv hluav taws kub- cov kab hluav taws xob tiv thaiv, thiab nplaim hluav taws- cov kab hluav taws xob tsis zoo yuav tsum tsis txhob siv los hloov.
V. Main daim ntawv thov scenarios ntawm hluav taws kub-resistant cables
Txhua cov khoom siv uas yuav tsum tau ua haujlwm txuas ntxiv thaum hluav taws kub thiab tsis tuaj yeem poob hluav taws xob yuav tsum siv hluav taws kub - cov kab hluav taws xob tiv thaiv:
- Cov kab hluav taws kub ceev teeb pom kev zoo thiab kev qhia txog kev khiav tawm;
- Tswj thiab fais fab mov Circuit Court ntawm cov twj tua hluav taws, cov kiv cua tso pa tawm, thiab cov kiv cua zoo siab;
- Cov kab hluav taws xob tsis siv neeg lub tswb thiab hluav taws xob txuas hluav taws xob tswj qhov system;
- Fireproof curtains, hluav taws elevator, tshaj tawm thaum muaj xwm ceev, thiab lwm yam., nplooj siab kab rau kev tiv thaiv hluav taws;
- High-cov tsev nce siab, chaw nres tsheb hauv av, khw muag khoom, tsev kho mob, tsev kawm ntawv, subways, tunnels, thiab lwm yam, cov chaw muaj neeg coob coob;
- Substations, chav computer, pej xeem infrastructure, thiab lwm yam., cov chaw tseem ceeb fais fab mov.
Ⅵ. Kev ceev faj rau kev xaiv thiab tsim hluav taws xob-Cov kab hluav taws xob tiv taus
- Cov hluav taws kub mica sab hauv- txheej tiv thaiv hluav taws- cov kab hluav taws xob tiv taus yog qhov yooj yim heev rau kev puas tsuaj. Thaum lub sij hawm tsim kho, kev nruj nruj, squeezing, thiab dragging yog nruj me ntsis txwv tsis pub kom tsis txhob tawg thiab detachment ntawm hluav taws kub - txheej resistant, uas yuav ua rau tsis ua hauj lwm ntawm hluav taws kub ua hauj lwm.
- Nws raug nquahu kom txhim kho nws tus kheej hauv cov kav dej lossis tus choj txuas txuas rau kev sib cais, thiab sim tsis txhob sib xyaw nrog cov cables zoo tib yam kom tsis txhob muaj kev puas tsuaj rau cov qauv vim qhov kub thiab txias.
- Thaum lub sij hawm kev yuav khoom, nws yog ib qho tsim nyog yuav tsum tau xyuas cov ntaub ntawv ntsuam xyuas cov khoom thiab kev tsim nyog. Class A thiab Class B hluav taws- cov kab hluav taws xob tiv thaiv yuav tsum raug xaiv raws li kev tsim qauv nruj me ntsis, thiab kev siv qis qis yog txwv nruj heev.
- Qhov zoo ntawm hluav taws kub- cov kab hluav taws xob tiv taus tsuas yog siv tau rau luv luv - lub sij hawm siab - qhov kub thiab txias ib puag ncig. Thaum lub sijhawm ua haujlwm txhua hnub, qhov kub thiab txias tseem yuav tsum tau ua raws li cov kev qhia tshwj xeeb ntawm cov kab hluav taws xob zoo tib yam thiab yuav tsum tsis txhob siab tshaj - kub lossis overloaded.
