1. Ua ntej txheeb xyuas lub tais tshuab ziab khaub ncaws kom paub meej tias txhua tus yuam sij raug nias kom huv si thiab cov chaw tsim nyog. Tsis tas li ntawd, xyuas seb lub pob pib puas tau raug nias lossis tig los pib cov cuab yeej ziab khaub ncaws.
2. Tshawb xyuas cov khoom siv hluav taws xob, xyuas kom tseeb tias qhov tam sim no ncav cuag lub tshuab ziab khaub ncaws, xyuas qhov voltage ntawm lub qhov (socket) nrog lub multimeter; Piv txwv tias cov khoom siv hluav taws xob tsis tau txhaj rau hauv cov cuab yeej ziab, thov xyuas lub vaj huam sib luag hluav taws xob kom pom tias lub tshuab hluav taws xob tau poob qis.
3. Yog hais tias lub Circuit Court breaker tsis tripped, lub qhov (socket) yuav tsum tau hloov; Piv txwv tias nws yog koj qhov teeb meem, tshwj tsis yog tias koj siv rau tus nqi, nws yuav yog ib lub tswv yim zoo hu rau tus kws kho hluav taws xob.
4. Piv txwv tias lub qhov (socket) tau kuaj xyuas nrog lub tshuab multimeter thiab cov khoom siv ziab qhuav tau txuas nrog lub zog hluav taws xob, qhov teeb meem yuav yog lub hwj chim qaum; lub hwj chim qaum ntawm lub tshuab ziab khaub ncaws yog ib qho yooj yim hnav vim kev tawm dag zog thiab kev laus.
