Kusukela imfuneko yayo yokuqala eminyakeni engu-50 edlule, i-Ground Fault Circuit Interrupter (GFCI) iye yathuthukiswa kaningi ukuze kwandiswe ukuvikelwa kwabasebenzi.Lezi zinguquko zacutshungulwa imibono evela ezinhlanganweni ezifana neKhomishini Yokuphepha Kwemikhiqizo Yabathengi (i-CPSC), i-National Electrical Manufacturers Association (NEMA), kanye ne-Underwriters Laboratories.
Elinye lalawa mazinga, i-UL 943, lihlinzeka ngezidingo eziqondile zeziphazamisi zesekethe ezingasebenzi kahle ezithobela amakhodi okufakwa kukagesi e-Canada, Mexico, nase-United States.NgoJuni 2015, i-UL yachibiyela imibandela yabo engu-943 ukuze idinge ukuthi wonke amayunithi afakwe unomphela (njengama-receptacles) afake umsebenzi wokuqapha okuzenzakalelayo.Abakhiqizi bakwazile ukudayisela amakhasimende abo isitoko esikhona, ngenhloso yokuthi njengoba amayunithi amadala eqedwa, ukushintshwa kwawo kuzohlanganisa nalesi sinyathelo sokuphepha esengeziwe.
Ukuqapha okuzenzakalelayo, okubuye kwaziwe ngokuthi ukuzihlola ngokwakho, kubhekisela kwinqubo eqinisekisa ukuthi iyunithi isebenza kahle ngokuqinisekisa ngokuzenzakalela ukuthi inzwa nekhono lohambo liyasebenza.Lokhu kuzihlola kuqinisekisa ukuthi ama-GFCI ahlolwa njalo, okuyinto abasebenzisi abangavamile ukuyenza.Uma ukuzihlola kwehluleka, ama-GFCI amaningi aphinde abe nenkomba yokuphela kwempilo ukuze azise umsebenzisi wokugcina lapho iyunithi idinga ukushintshwa.
Isici sesibili segunya elibuyekeziwe le-UL 943 liphindaphinda Ukuvikelwa Okuhlehlisiwe Komugqa Wokuvikeleka Kwezintambo.Ukuguqulwa komthwalo womugqa kuvimbela amandla kuyunithi futhi kuvimbele ukuyimisa kabusha uma kunenkinga ngezintambo.Ukuthi iyunithi isetshenziswa okokuqala ngqa noma iphinda ifakwe, noma yiziphi izintambo ezingalungile ku-GFCI ezihlolayo zizoholela ekulahlekeni kwamandla kanye/noma ekungakwazini ukusetha kabusha okokusebenza.
Kusukela ngomhla ka-May 5, 2021, i-UL 943 idinga ukuthi imikhiqizo esetshenziswa ezinhlelweni eziphathwayo (ngokwesibonelo, amakhodi e-GFCI Asemgqeni kanye namaYunithi Aphathekayo Okusabalalisa,) ihlanganise ubuchwepheshe bokuhlola okuzenzakalelayo ukuze kuthuthukiswe ukuphepha kwesisebenzi nendawo yokusebenza.
Isikhathi sokuthumela: Sep-05-2022