Kev tsim cov khoom ua tiav ntawm cov khoom siv hluav taws xob tsawg-voltage fais fab faib khoom suav nrog cov txheej txheem nruj heev. Thawj kauj ruam yog kev npaj cov khoom siv raw, uas suav nrog kev xaiv qib siab - cov ntaub ntawv zoo- xws li steel thiab tooj liab busbars - kom ntseeg tau tias lawv zoo raws li cov qauv tsim. Cov hlau yog tom qab ntawd raug rau kev ua haujlwm, xws li txiav thiab khoov, los tsim cov txheej txheem ntawm lub txee faib khoom. Tom ntej no los txog theem tsim thiab kev npaj; Raws li cov neeg siv khoom xav tau thiab cov kev xav tau ntawm daim ntawv thov, qhov layout, qhov ntev, thiab hluav taws xob circuitry ntawm lub txee yog tsim los xyuas kom meej tias tag nrho cov khoom raug teeb tsa thiab ua tau zoo. Tom qab ntawd pib ua haujlwm, suav nrog kev teeb tsa ntawm cov txheej txheem tsim nrog rau cov khoom siv hluav taws xob- xws li cov hluav taws xob hluav taws xob thiab cov contactors- nrog rau kev sib txuas ntawm tooj liab busbars thiab thaiv kom tiav cov hluav taws xob hluav taws xob. Thoob plaws hauv cov txheej txheem sib dhos, kev ua tib zoo saib xyuas yog them rau qhov chaw ntawm cov khoom thiab cov txheej txheem ntawm kev sib txuas kom ruaj ntseg fastening thiab pom hluav taws xob tiv tauj.
Tom qab ua tiav ntawm kev sib dhos, vuam thiab txuas txuas tau ua tiav los lav qhov kev ruaj ntseg ntawm tag nrho cov qis-voltage faib txee. Tom qab ntawd, lub tsev tau dhau los ua qhov kev tshuaj ntsuam xyuas zoo thiab qib ntsuas; siv cov cuab yeej tshwj xeeb, qhov tseem ceeb tsis zoo- xws li kev ua haujlwm hluav taws xob, kev tiv thaiv hluav taws xob, thiab lub zog dielectric- raug kuaj xyuas kom paub tseeb tias kev ua raws li cov qauv thiab cov kev cai tswj hwm. Tsuas yog cov khoom lag luam uas ua tiav dhau qhov kev sim nruj no tau raug tshem tawm mus rau theem kawg ntawm kev ntim khoom thiab xa khoom.
