Video: Dab tsi yog qhov tuag pem hauv ntej vaj huam sib luag?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ib qho hluav taws xob vaj huam sib luag feem ntau yuav muaj ib lossis ob lub npog. Vaj huam sib luag nrog ob lub hau muaj lub hau sab nraud (uas yuav qhib rau sab lossis sab saud) thiab lub hau sab hauv, hu ua Tuag pem hauv ntej ”. Cov tuag pem hauv ntej npog ib txwm muaj cov qhov qhib / knockouts rau cov breakers kom haum rau hauv.
Ntawm no, dab tsi yog qhov tuag pem hauv ntej ntawm hluav taws xob vaj huam sib luag?
Tuag pem hauv ntej tau txhais nyob rau hauv Tshooj 100 ntawm NEC tias yog "tsis muaj qhov chaw nyob raug rau tus neeg ntawm kev ua haujlwm ntawm cov khoom siv." Tshooj 408.38 xav tau qhov ntawd panelboards yuav mounted nyob rau hauv txee, cutout thawv los yog enclosures tsim rau lub hom phiaj thiab yuav tsum tuag pem hauv ntej.
Ib yam li ntawd, lub vaj huam sib luag hluav taws xob puas xav tau lub hau npog? 3 Teb. National Hluav taws xob code ua tsis yog xav tau ib qhov rooj rau npog breaker tuav. Nws yuav tsum tau cover uas tiv thaiv kev nkag mus rau cov khoom siv hluav taws xob, uas yuav tsum muaj txhua qhov qhib kaw. A vaj huam sib luag tsis muaj qhov rooj tsis yog ua txhaum, tab sis a vaj huam sib luag tsis muaj ib npog yog.
Ib sab saum toj, dab tsi yog qhov tuag pem hauv ntej switchboard?
TUAG - PEM SWITCHBOARD - A switchboard uas tsis muaj qhov tshwm sim nyob rau hauv pem hauv ntej . DEVICE - Ib feem ntawm lub tshuab hluav taws xob uas tsim los nqa lossis tswj, tab sis tsis siv, hluav taws xob hluav taws xob.
Dab tsi yog qhov txawv ntawm lub switchboard thiab panelboard?
A switchboard feem ntau yog qhov tsawg-voltage (240-690V) peb-theem vaj huam sib luag uas muaj cov khoom siv hluav taws xob uas siv los ua cov khoom siv hluav taws xob. A panelboard Feem ntau yog ib qho hluav taws xob tsawg-theem ib-theem faib vaj huam sib luag nrog ib leeg- thiab ob-ncej Circuit Court breakers.
Pom zoo:
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Structured Wiring thiab Networking Panels. Structured wiring yog ib lo lus dav dav uas hais txog lub network tag nrho ntawm cov suab, video, cov ntaub ntawv, xov tooj, TV, lub tsev automation lossis kev ruaj ntseg teeb liab. Cov kab hluav taws xob muaj peev xwm tuaj yeem ntsia tau thaum lub tsev nyob hauv kev tsim kho, retrofitted thaum hloov kho lossis ntxiv rau nws tus kheej
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Ob hom indirect: CCD thiab TFT ob leeg yuav tsum tau xray hloov dua siab tshiab rau lub teeb thiab ces mus rau hluav taws xob teeb liab nrog photodiode txheej