Basic Introduction Ntawm Khawm Hloov

khawm hloov, tseem hu ua khawm tswj (khawm luv luv), yog qhov tsawg- cov khoom siv hluav taws xob hluav taws xob uas tuaj yeem ua manually thiab feem ntau rov pib dua. Cov nyees khawm feem ntau yog siv nyob rau hauv circuits los pib lossis nres cov lus qhia los tswj lub hauv thiab tawm ntawm cov hluav taws xob coil tam sim no xws li electromagnetic starters, contactors, thiab relays.

Lub khawm hloov yog ib qho khoom siv hluav taws xob uas siv los hloov thiab tawm me me tam sim no circuits uas yog nias los ua, thiab tso tawm kom rov pib dua. Nws feem ntau yog siv rau hauv kev tswj Circuit Court nrog AC thiab DC voltages hauv qab 440V thiab tam sim no tsawg dua 5A. Feem ntau, lub ntsiab Circuit Court tsis ncaj qha manipulated, thiab nws kuj yuav siv tau nyob rau hauv interconnecting circuits.

In actual use, in order to prevent misoperation, buttons are usually marked or painted in different colors to distinguish them. The colors are red, yellow, blue, white, black, green, etc. Generally, red means "stop" or "dangerous" operation; green means "start" or "on". The emergency stop button must be a red mushroom button. The button must have a metal protective retaining ring, and the retaining ring should be higher than the button cap to prevent accidental operation of the button. The material of the button board and button box where the button is installed must be metal and connected to the main ground bus of the machine.