Video: Class 2 fais fab mov siv rau dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Chav kawm 2 yog ib qho kev faib tawm xa mus rau NEC - National Electric Code. Txhawm rau kom tsis txhob muaj peev xwm cable overheating vim yog cov khoom siv hluav taws xob ntau dhau thiab hluav taws xob poob siab, qhov tso zis ntawm lub fais fab mov yog txwv rau 60VDC lossis 100VA, (100W thaum siv nrog AC-DC fais fab mov ).
Raws li txoj cai, Class II fais fab mov yog dab tsi?
Chav II (nrog Roman tus lej) hais txog cov khoom siv fais fab nrog ob tog los yog muaj zog rwb thaiv tsev thaiv ntawm cov tswv yim thiab cov zis. Class II khoom tsis txhob cia siab rau lub ntiaj teb kev sib txuas los tiv thaiv kev poob siab. Muaj ntau lub xov tooj ntawm tes chargers thiab laptop cov khoom siv fais fab yog Chav II.
Tsis tas li ntawd, qhov sib txawv ntawm Chav Kawm 1 thiab Chav Kawm 2 yog dab tsi? Class 1 kab yog qhov yuav tsum tau ua kom dhau cov qauv rau lub zog thiab teeb pom kev zoo kab hluav taws xob . Nws yuav tsum zaum hauv cov hlau los yog cov hlau tsis yog hlau los yog hlau-sheathed kab hluav taws xob piv rau jacketed kab xws li hom NM. Chav kawm 3 kab hluav taws xob yog functionally zoo ib yam li Class 2 kab , tab sis nrog ntau dua voltage thiab hwj chim txwv.
Tom qab, lo lus nug yog, dab tsi yog Class 2 transformers siv rau?
Class 2 transformers feem ntau yog siv nyob rau hauv txwv-power control lossis signaling applications, xws li doorbell transformers lossis lwm yam kev siv hluav taws xob tsawg uas yuav tsum muaj kev nyab xeeb txawm tias luv luv.
Lub luag haujlwm ntawm lub zog hluav taws xob yog dab tsi?
A fais fab mov yog ib qho hluav taws xob Circuit Court. Nws muaj nuj nqi yog xa mus tas li muab voltage nyob rau hauv daim ntawv thov yooj yim los yog automation. A fais fab mov muaj cov transformer, rectifier, lim thiab tsis tu ncua circuits. A fais fab mov chav tsev khoom siv Tsawg voltage tswj DC zog rau lub internal Cheebtsam ntawm lub computer.
Pom zoo:
Kuv yuav tsum nrhiav dab tsi thaum yuav lub khoos phis tawj fais fab?
Cov kauj ruam Txiav txim siab wattage koj xav tau. Siv lub tshuab xam zauv PSU lub vev xaib lossis software los pab txiav txim siab koj cov cai. Tshawb nrhiav cov connectors uas koj xav tau. Saib rau PSUs nrog cov qhab nia ua tau zoo. Txiav txim siab qhov robustness ntawm PSU. Tshawb xyuas tus naj npawb ntawm txoj kab tsheb ciav hlau. Tau txais modular PSU. Sib piv cov amperage ntawm txhua qhov voltage
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