Fashewar Shenhai-Hujja
Na'urorin sanyaya iska mai hana fashewa suna buƙatar yin amfani da manyan kayan rufe fuska don tabbatar da aikin su duka lafiyayye ne kuma abin dogaro.. Yawanci, An rarraba kayan da ake amfani da su don rufewa zuwa nau'i uku: mai gas, ruwa, kuma m. Ana amfani da insulators na gas a ƙarƙashin babban yanayin ƙarfin lantarki, ruwa insulators yafi kamar yadda ma'adinai man fetur a low-ƙarfin wutar lantarki transformers, yayin da daskararrun insulators galibi ana amfani da su a cikin abubuwan da aka gyara na na'urorin lantarki.
Abubuwan buƙatun don Kayan Aiki:
1. Dole ne insulators masu ƙarfi su mallaka halaye maras konewa da harshen wuta.
2. Ya kamata insulators masu ƙarfi nuni kadan sha danshi.
3. M insulators ne ana buƙatar zama mai juriya ga baka na lantarki.
4. Dole ne insulators masu ƙarfi nuna kyakkyawan juriya na zafi.
Juriya mai zafi na m rufi yana nufin zafin jiki wanda waɗannan kayan zasu iya aiki na tsawon lokaci ba tare da lalacewa ba. M insulators ya kamata kula da injiniyoyi masu ƙarfi lokacin da yanayin zafi ya wuce 20.0 ℃ kuma kar a faɗi ƙasa da 80.0 ℃ daga ci gaba da zazzabi na kayan aiki.. Na'urorin lantarki daban-daban suna buƙatar matakan juriya na zafi daban-daban.
Juriya mai zafi na insulators an rarraba shi zuwa maki takwas: Y, A, E, B, F, H, C. Abubuwan da aka saba amfani da su sun haɗa da robobi na triazine asbestos arc da filastik DMC, tare da yanayin zafi na bakin kofa tsakanin 130-155 ℃. Ingantattun kayan aikin lantarki kuma suna ƙayyadaddun motoci, transformer, da kuma iskar wutar lantarki da za a rufe da aƙalla yadudduka biyu na kayan rufewa don wayoyi marasa ƙarfi, aƙalla Layer ɗaya don bakin ciki enamel rufi wayoyi, da nau'in QZ-2 don wayoyi masu rufi na enamel mai kauri.
A lokaci guda, iska kamata yayi amfani da daya daga cikin dabarun impregnation: nutsewa, digo, ko vacuum impregnation. Bai kamata a yi amfani da hanyoyin goge-goge da feshi don yin ciki ba. Idan kwayoyin kaushi suna aiki a matsayin impregnants, yana wajabta zagaye biyu na zubar ciki da bushewa. An hana coils da diamita kasa da 0.25mm don ingantaccen kayan aikin lantarki. A lokuta na musamman, ana iya yin coils a ciki na cikin aminci ko tsarin da aka rufe.