Kuva icyifuzo cyayo cya mbere kimaze imyaka 50 ishize, Ground Fault Circuit Interrupter (GFCI) imaze kunonosora ibishushanyo byinshi kugirango abakozi barinde.Izi mpinduka zatewe n’ibitekerezo byaturutse mu mashyirahamwe nka komisiyo ishinzwe umutekano w’ibicuruzwa by’umuguzi (CPSC), Ishyirahamwe ry’abakora amashanyarazi y’amashanyarazi (NEMA), na Laboratoire zandika.
Kimwe muri ibyo bipimo, UL 943, gitanga ibisabwa byihariye kubutaka-butandukanya imirongo-yubahiriza amategeko agenga amashanyarazi ya Kanada, Mexico, na Amerika.Muri kamena 2015, UL yahinduye ibipimo 943 kugirango isabe ko ibice byose byashizweho burundu (nka reseptacles) birimo imikorere yo kugenzura imodoka.Abahinguzi bashoboye kugurisha imigabane ihari kubakiriya babo, bagamije ko uko ibice bishaje byagabanutse, abasimbuye bazashyiramo iki cyemezo cyumutekano cyiyongera.
Gukurikirana ibinyabiziga, bizwi kandi no kwipimisha, bivuga inzira yemeza ko igice gikora neza muguhita ugenzura ibyiyumvo kandi ubushobozi bwurugendo bukora.Uku kwipimisha kwiyemeza ko GFCIs igeragezwa buri gihe, nikintu abakoresha badakunze gukora.Niba kwipimisha byananiranye, byinshi bya GFCI nabyo biranga ibipimo byanyuma byubuzima kugirango umenyeshe umukoresha wa nyuma mugihe igice gikeneye gusimburwa.
Igice cya kabiri cyavuguruwe UL 943 manda yasubiwemo Umurongo uhinduranya-umutwaro Mis-wire Kurinda.Umurongo-Umutwaro uhinduranya ubuza ingufu igice kandi ukirinda kugisubiramo mugihe hari ikibazo cyinsinga.Niba igice gikoreshwa bwa mbere cyangwa cyongeye gushyirwaho, insinga iyo ari yo yose itari yo yo kwipimisha GFCI izaviramo gutakaza amashanyarazi no / cyangwa kudashobora gusubiramo ibikoresho.
Guhera ku ya 5 Gicurasi 2021, UL 943 isaba ko ibicuruzwa bikoreshwa mubisabwa byimukanwa (In-line ya GFCI cordsets hamwe na Portable Distribution Units, urugero) bikubiyemo tekinoroji yo gupima ibinyabiziga kugirango irusheho kuzamura abakozi n’umutekano w’akazi.
Igihe cyo kohereza: Nzeri-05-2022