Tun lokacin da ake buƙata ta farko shekaru 50 da suka gabata, Ground Fault Circuit Interrupter (GFCI) ya sami haɓaka ƙira da yawa don ƙara kariya ta ma'aikata.Waɗannan sauye-sauyen sun sami karbuwa ta hanyar shigarwa daga kungiyoyi irin su Hukumar Kare Kayayyakin Kayayyaki (CPSC), Ƙungiyar Masu Samar da Wutar Lantarki ta Ƙasa (NEMA), da Ƙwararrun Ƙwararrun Ƙwararru.
Ɗaya daga cikin waɗannan ma'auni, UL 943, yana ba da takamaiman buƙatu don masu katse da'ira-kuskuren ƙasa waɗanda ke bin lambobin shigarwar lantarki na Kanada, Mexico, da Amurka.A watan Yuni 2015, UL sun gyara ma'aunin su na 943 don buƙatar duk raka'o'in da aka girka (kamar rumbun ajiya) sun haɗa da aikin sa ido ta atomatik.Masana'antun sun sami damar siyar da hajojin da ake da su ga abokan cinikinsu, tare da nufin cewa yayin da aka cire tsofaffin raka'a, masu maye gurbinsu za su haɗa wannan ƙarin matakan tsaro.
Kulawa ta atomatik, wanda kuma aka sani da gwajin kai, yana nufin tsari wanda ke tabbatar da naúrar tana aiki da kyau ta hanyar tabbatar da ji da kuma ikon tafiya ta atomatik.Wannan gwajin kai yana tabbatar da ana gwada GFCI akai-akai, wanda shine wani abu da masu amfani ke yi akai-akai.Idan gwajin kai ya gaza, yawancin GFCI kuma suna da alamar ƙarshen rayuwa don faɗakar da mai amfani da ƙarshen lokacin da naúrar ke buƙatar maye gurbin.
Bangare na biyu na sabunta UL 943 ya ba da umarni maimaituwar Kariyar Mis-waya mai ɗaukar Layi.Juya layin-Load yana toshe wuta zuwa naúrar kuma yana hana sake saita shi lokacin da aka sami matsala tare da wayoyi.Ko ana amfani da naúrar a karon farko ko kuma ana sake shigar da ita, duk wata hanyar sadarwa mara kyau zuwa GFCI mai gwada kanta zai haifar da asarar wuta da/ko rashin iya sake saita kayan aikin.
Tun daga Mayu 5th, 2021, UL 943 yana buƙatar samfuran da aka yi amfani da su a cikin aikace-aikacen šaukuwa (In-line GFCI cordsets and Portable Distribution Units, alal misali) su haɗa fasahar gwaji ta atomatik don haɓaka amincin ma'aikaci da amincin wurin aiki.
Lokacin aikawa: Satumba-05-2022