Tsawg- cov khoom siv hluav taws xob hluav taws xob muaj ntau yam thiab tuaj yeem faib ua ntau txoj hauv kev.
1. Los ntawm txoj kev khiav hauj lwm:
(1) Cov khoom siv hluav taws xob siv hluav taws xob - cov khoom siv hluav taws xob uas tso siab rau sab nraud rau kev ua haujlwm ncaj qha, xws li riam hloov thiab thawb- khawm keyboards.
(2) Cov khoom siv hluav taws xob tsis siv neeg - cov khoom siv hluav taws xob uas ua haujlwm tau raws li cov lus txib lossis kev hloov pauv ntawm lub cev, xws li contactors thiab relays.
2. Los ntawm kev thov:
(1) Tsawg-voltage tswj cov khoom siv hluav taws xob - feem ntau yog siv rau kev tswj hauv qis-voltage fais fab faib tshuab thiab cov khoom siv fais fab, xws li riam hloov thiab qis-voltage circuit breakers.
(2) Tsawg-cov khoom siv hluav taws xob tiv thaiv hluav taws xob - feem ntau yog siv los tiv thaiv hauv qis-voltage fais fab faib tshuab thiab cov khoom siv fais fab, xws li fuses thiab thermal relays.
3. Raws li hom:
Riam hloov, riam- hom hloov pauv hloov pauv, fuses, qis-voltage circuit breakers, contactors, relays, master control appliances, and automatic switches, etc.
