Yuav ua li cas thaum tus cwj mem tawg lub fuse?
Thaum lub tshuab hluav taws xob digital siv los hloov lub ntsuas ntsuas ntsuas los txiav txim qhov xoom kab thiab kab nyob, qhov hloov pauv tuaj yeem hloov kho rau AC voltage ntawm 200V, thiab lub stylus dub kov hauv av lossis phab ntsa. , thiab lub stylus liab kov ob lub xov hlau sib. Yog hais tias lub stylus liab kov lub xoom kab, qhov voltage tso tawm los ntawm multimeter yog heev me me, nyob ze rau 0 V. Yog hais tias tus liab stylus kov cov nyob kab, qhov voltage tso tawm los ntawm lub multimeter feem ntau yog siab tshaj kaum tawm volts. Siv cov qauv no los ntsuas AC high voltage, tsis zoo li cov cwj mem, yuav muaj cov tam sim no ntws los ntawm tib neeg lub cev, uas muaj kev nyab xeeb dua.
(1) txaus ntshai heev!
Txawm li cas los xij, qhov txaus ntshai tsis tshwm sim thaum cov kab hluav taws kub ntsuas nrog cov cwj mem ntsuas. Lub siab tiv thaiv resistors siv rau hauv ntsuas cwj mem yog cov khoom tseem ceeb resistors, tseem hu ua ntim resistors, uas tau muab faib ua ob pawg: organic hluavtaws solid-core resistors thiab inorganic hluavtaws hluavtaws-core resistors. Hom resistor no yog ua los ntawm cov khoom siv granular conductive, uas tsis yog-conductive hmoov khoom siv los ua muab tub lim thiab nplaum los ntawm kev sib xyaw thiab nias. Cov ntaub ntawv granular conductive yog carbon dub thiab graphite; Cov ntaub ntawv uas tsis yog-conductive yog mica hmoov, quartz hmoov, iav hmoov, titanium dioxide hmoov, thiab lwm yam. Qee cov adhesives siv organic adhesives, thiab ib txhia siv inorganic adhesives. Ob pawg ntawm cov organic solid-core resistors thiab inorganic solid-core resistors tau hais los saum no yog qhov txawv raws li hom nplaum. Hom resistor no muaj zog tiv thaiv overload, muaj kev ntseeg siab thiab tsis yooj yim rau kev puas tsuaj. Nyob rau hauv cov ntaub ntawv ntawm kev puas tsuaj, nws kuj yog nyob rau hauv ib tug qhib Circuit Court, uas yog, txawm hais tias lub neon raj tsis puas, nws tsis teeb, tab sis tus neeg tuav lub xeem mem hluav los ntsuas kab hluav taws yuav tsis tau ib tug hluav taws xob shock.
(3) Qhov phom sij ntawm hluav taws xob poob siab tshwm sim yog tias muaj hluav taws xob nyob rau hauv cov hlau nyob, thiab qhov kev tiv thaiv ntawm cov cwj mem xeem raug puas tsuaj, yog li nws yooj yim rau tib neeg los kov cov hlau nyob thiab tau txais hluav taws xob poob siab!
Yog hais tias qhov tsis kam ntawm lub stylus (feem ntau yog cov khoom pressed tsis kam, tus nqi kuj yog ob peb m) tawg, nws tuaj yeem muab faib ua ob qhov xwm txheej:
Ua ntej, nws raug txiav tawm (muaj ntau qhov xwm txheej zoo li no). Tom qab qhov kev tiv thaiv raug txiav tawm, lub ntsuas hluav taws xob raug txiav, thiab lub teeb neon ntawm lub ntsuas ntsuas tsis muaj tam sim no, thiab lub teeb neon tsis ci, uas yooj yim rau kev txiav txim siab qhov teeb meem ntawm qhov ntsuas hluav taws xob;
Qhov thib ob yog luv luv Circuit Court (uas yog tsis tshua muaj), thiab lub neon raj ntawm lub xeem cwj mem yog tawg vim instantaneous high voltage (qhov ib txwm ua hauj lwm voltage ntawm neon noob yog 70V). Lub sijhawm no, lub raj neon ua lub luag haujlwm pov hwm thiab yuav tsis ua mob rau tib neeg.
