Class 1 hluav taws xob Circuit Court yog dab tsi?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

A chav 1 circuit yog ib feem ntawm lub kab hluav taws xob system nruab nrab ntawm lub load sab ntawm lub overcurrent tiv thaiv ntaus ntawv (OCPD) los yog lub zog -limited mov thiab kev cob cog rua load. Piv txwv li, Class 1 zog - txwv circuits yog muab los ntawm a zog muab nrog cov zis uas tsis pub tshaj 30 volts thiab 1,000 volt-amps.

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.

Ib yam li ntawd, qhov siab tshaj plaws tso cai voltage ntawm chav kawm 1 Circuit Court yog dab tsi? 30 volts

Kuj tseem paub yog, dab tsi yog Class 2 hluav taws xob circuit?

NEC txhais a Chav Kawm 2 circuit raws li qhov feem ntawm cov xaim hluav taws xob nruab nrab ntawm sab load ntawm a Chav kawm 2 lub zog qhov chaw thiab cov khoom siv txuas nrog. Vim nws txwv lub zog, a Chav Kawm 2 circuit suav hais tias muaj kev nyab xeeb los ntawm qhov pib qhov hluav taws kub thiab muab kev tiv thaiv zoo los ntawm hluav taws xob poob siab.

Class 2 thiab 3 circuits yog dab tsi?

Class 2 thiab 3 circuits txhais tau tias yog ib feem ntawm cov kab hluav taws xob nruab nrab ntawm cov khoom siv hluav taws xob thiab cov khoom siv txuas nrog. Class 3 circuits txwv lub zog tso zis mus rau theem uas feem ntau yuav tsis pib hluav taws. Txawm li cas los xij, lawv tuaj yeem ua tau thiab ua haujlwm ntawm qib siab dua thiab, yog li, tuaj yeem ua rau muaj kev phom sij txaus ntshai.