Hloov lub xeev qhov taw qhia
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Hloov lub xeev qhov taw qhia
Vaj huam sib luag thiab kev ua haujlwm piav qhia ntawm qhov hloov pauv ntawm qhov taw qhia vaj huam sib luag: (Rau rau: tus lej hauv daim duab yog qhia txog kev ua haujlwm ntawm kev teeb tsa, thiab tsis muaj tus lej ntawm qhov ntsuas qhov tseeb) 01. Circuit breaker kaw qhov taw qhia 02. Circuit breaker qhib qhov taw qhia 03.①, 03② ua hauj lwm txoj hauj lwm qhia 04.①, 04②Test txoj hauj lwm qhia 05. Grounding switch kaw qhov taw qhia 06. Earthing hloov sub-indication 07. Zog cia qhia 08. nyob indicat...
