Raws li lub teb chaws tus qauv, kev faib tawm ntawm qhov siab thiab qis voltage yuav tsum ua raws li qhov ntsuas hluav taws xob. Lub teb chaws tus qauv GB/T 156-2017 "Standard Voltage", GB/T 14048 series (Low-voltage switchgear thiab controlgear), thiab GB/T 7251 series (Low-voltage switchgear thiab controlgear assemblies) tag nrho cov txhais voltage theem ntawm AC00V tsis tshaj 10V voltage . Qhov qis-voltage hloov pauv yog ib qho khoom siv hluav taws xob tswj hluav taws xob uas muaj qhov ntsuas hluav taws xob tsawg dua lossis sib npaug li 1000V, yog nyob rau hauv qeb ntawm cov khoom siv hluav taws xob tsawg-voltage. Tsawg-voltage switchgear, lossis tsuas yog qis- cov khoom siv hluav taws xob hluav taws xob, yog cov khoom siv hluav taws xob siv hauv circuits nrog qhov ntsuas hluav taws xob ntawm AC 1000V lossis DC 1500V thiab hauv qab no, ua haujlwm ntawm kev tiv thaiv, tswj, tswj, hloov pauv, thiab hloov pauv. Cov khoom ua tiav cov khoom tsim los ntawm qis-voltage switchgear thiab controlgear yog hu ua low-voltage switchgear los ua ke.
Tsawg-voltage switchgear tuaj yeem faib ua ntau txoj hauv kev.
Raws li daim ntawv thov, nws tuaj yeem muab faib ua cov khoom siv hluav taws xob hauv hluav taws xob thiab tswj cov khoom siv hluav taws xob hauv hluav taws xob.
Raws li kev ua haujlwm, qis-voltage switchgear tuaj yeem muab faib ua PCC cov khoom (hom hluav taws xob faib hluav taws xob) thiab MCC txee (hom tswj lub cev muaj zog).
Raws li cov qauv thiab cov khoom sib xyaw ua ke, qis-voltage keyboards tuaj yeem muab faib ua cov hloov pauv, hloov hauv av, hloov pauv, fuse keyboards, thiab lwm yam.
Raws li txoj kev kaw, lawv tuaj yeem muab faib ua - hom thiab kaw - hom hloov pauv.
Hauv cov chaw tshwj xeeb, kuj tseem muaj hom xws li tsheb qis-voltage tiv thaiv keyboards thiab siab- tswj qis-voltage keyboards.