Dapre diferan metòd chofaj ak pouvwa, nou divize kab chofaj elektrik la an: pwòp tèt ou -limite tanperati kab chofaj elektrik ak pouvwa konstan kab chofaj elektrik, kidonk ki sa ki yon pwòp tèt ou -limite tanperati kab chofaj elektrik. ? Jodi a, mwen pral ba ou yon entwodiksyon tou kout sou kab chofaj oto-limite tanperati a.
Oto-kab chofaj elektrik limite tanperati, jan non an implique, se yon kab chofaj elektrik ki ka otomatikman kontwole tanperati chofaj la. Poukisa? Paske materyèl chofaj nan pwòp tèt -limite tanperati trase kab la se PTC polymère kondiktif plastik, materyèl sa a kondiktif elaji lè tanperati a monte, se konsa ke yon pati nan rezo chanèl aktyèl la piti piti dekonekte, aktyèl la enèji redwi, ak se valè kalorifik la tou redwi. An menm tan an, lè tanperati a diminye, senti nwayo chofaj PTC a retresi, chanèl aktyèl la rekonekte, ak aktyèl la ogmante ak jenerasyon chalè a ogmante. Otomatikman ajiste tanperati kab chofaj elektrik la atravè materyèl PTC la.
At the same time, according to different heat tracing temperatures, we divide the self-limiting temperature tracing cables into low temperature self-limiting temperature electric tracing cables, medium temperature self-limiting temperature electric tracing cables, and high temperature self-limiting temperature electric tracing cables. The maximum working temperature of the low temperature self-limiting heating cable is 65±5 degree , and the maximum temperature resistance is 85 degree ; the maximum working temperature of the medium temperature self-limiting electric heating cable is 105±5 degree , and the maximum environmental exposure temperature is 135 degree , which is brown; the high temperature self-limiting temperature The maximum working temperature of the electric heating cable is 130±5 degree , and the maximum working environment temperature is 150 degree , which is red.
Dapre diferan estrikti ak materyèl nan kab chofaj elektrik la, kab chofaj pwòp tèt ou -limite tanperati a ka divize an flanm dife-ignifuge kab chofaj elektrik, òdinè kab chofaj elektrik ak materyèl fliyò anti{{2 }}kowozyon chofaj kab selon diferan materyèl gaine deyò. , kouvwi kab chofaj elektrik ak eksplozyon -prèv kab chofaj elektrik ak kouch metal pwoteksyon