Cov cuab yeej rwb thaiv tsev tau muab faib ua I, II thiab III pawg raws li lawv cov txheej txheem rwb thaiv tsev sib txawv.
Cov cuab yeej Class I xa mus rau cov cuab yeej hluav taws xob nrog cov rwb thaiv tsev yooj yim. Kev tiv thaiv hluav taws xob tsis yog tsuas yog tso siab rau cov txheej txheem rwb thaiv tsev ntawm ramie, tab sis kuj yuav tsum tau ntxiv kev tiv thaiv kev nyab xeeb, uas yog, qhov cuam tshuam ntawm lub cev uas tsis raug them rau hauv ib txwm muaj tab sis dhau los ua lub cev them nyiaj thaum nws cov rwb thaiv tsev yooj yim. puas yog tiv thaiv thiab txuas nrog xoom. Yuav kom txhim khu kev qha, yuav tsum tsis pub tsawg tshaj li ob qhov kev tiv thaiv zeroes, thiab kev tiv thaiv tawm yuav tsum tau ntxiv. Nyob rau tib lub sijhawm, tus neeg teb xov tooj yuav tsum tau siv cov khoom siv tiv thaiv insulating.
Class II tools refer to electric tools with double insulation or reinforced insulation. In terms of protection against electric shock, they not only rely on their basic insulation, but also have their live parts under normal conditions and accessible non-charged conductive parts. Double insulation or Strengthening insulation and isolation measures is equivalent to designing and manufacturing the operator's personal insulating protective equipment on the tool in a reliable and effective way.
Cov cuab yeej Class III xa mus rau cov cuab yeej hluav taws xob uas siv los ntawm kev nyab xeeb ntxiv - tsis tshua muaj hluav taws xob, thiab tso siab rau kev nyab xeeb kev rho tawm hluav taws xob hloov hluav taws xob rau kev tiv thaiv hluav taws xob.
