Ka hoʻomaopopo ʻana i ka hewa o ka lepo a me ka pale ʻana i kēia manawa

Ua hoʻohana ʻia nā mea hoʻopau kaʻapuni hewa honua (GFCI) no nā makahiki he 40, a ua hōʻoia lākou he waiwai nui lākou i ka pale ʻana i nā limahana mai ka pōʻino o ka haʻalulu uila.Ua hoʻokomo ʻia nā ʻano leakage ʻē aʻe o kēia manawa a me nā mea pale hewa o ka honua no nā noi like ʻole mai ka hoʻomaka ʻana o nā GFCI.Pono pono ka hoʻohana ʻana i kekahi mau mea pale ma ka National Electrical Code® (NEC)®.ʻO nā mea ʻē aʻe he ʻāpana o kahi mea hana, e like me ke koi ʻia e ka maʻamau UL e uhi ana i kēlā mea hana.E kōkua ana kēia ʻatikala e hoʻokaʻawale i nā ʻano mea like ʻole o nā mea pale i hoʻohana ʻia i kēia lā a wehewehe i kā lākou hoʻohana ʻana.

ʻO GFCI
ʻO ka wehewehe ʻana o kahi mea hoʻopuehu kaapuni hewa ʻāina aia ma ka Paukū 100 o ka NEC a penei: "He mea hana i manaʻo ʻia no ka pale ʻana i nā limahana e hana ana e hoʻoneʻe i kahi kaapuni a i ʻole kekahi hapa o ia mea i loko o kahi manawa i hoʻopaʻa ʻia i ʻoi aku ka nui o kēia manawa i ka honua ma mua o nā waiwai i hoʻokumu ʻia no kahi hāmeʻa Papa A.

Ma hope o kēia wehewehe ʻana, hāʻawi kahi ʻIke ʻIke i ka ʻike hou aku e pili ana i ke ʻano o kahi hāmeʻa Class A GFCI.Ua ʻōlelo ʻia e holo ana kahi papa A GFCI i ka wā e loaʻa ai ka waiwai o kēia manawa i ka honua ma ka laulā o 4 milliamps a 6 milliamps, a me nā kuhikuhi ʻana iā UL 943, ka Standard for Safety for Ground-Fault Circuit-Interrupters.

Hoʻopili ka pauku 210.8 o ka NEC i nā noi kikoʻī, nā hale noho a me nā ʻoihana, kahi e pono ai ka pale GFCI no nā limahana.Ma nā hale noho, koi ʻia nā GFCI i nā pahu 125-volt, hoʻokahi pae, 15- a me 20-ampere i hoʻokomo ʻia i nā wahi e like me nā lumi ʻauʻau, nā hale kaʻa, waho, nā hale lalo i hoʻopau ʻole ʻia, a me nā lumi kuke.ʻO ka Paukū 680 o ka NEC e uhi ana i nā loko ʻauʻau he mau koi GFCI hou.

Ma kahi kokoke i kēlā me kēia paʻi hou o ka NEC mai 1968, ua hoʻohui ʻia nā koi GFCI hou.E nānā i ka papa ma lalo no nā laʻana o ka wā i koi mua ai ka NEC i nā GFCI no nā noi like ʻole.E ʻoluʻolu, ʻaʻole i hoʻokomo ʻia kēia papa inoa i nā wahi āpau i koi ʻia ai ka pale GFCI.

Hiki ke loaʻa ka ʻike alakaʻi alakaʻi no ka Ground-Fault Circuit Interrupters (KCXS) ma UL Product iQ™.

ʻO nā ʻano ʻē aʻe o ka leakage o kēia manawa a me nā mea pale hewa lepo:

GFPE (Ground-Fault Protection of Equipment) — Manaʻo ʻia no ka pale ʻana i nā mea hana ma ka wehe ʻana i nā mea hoʻokele kaapuni ʻole a pau o kahi kaapuni ma nā pae o kēia manawa ma lalo o ka mea o kahi mea hoʻokele kaapuni hoʻolako.Hoʻolālā maʻamau kēia ʻano mea hana no ka huakaʻi ma ka 30 mA a i ʻole ke kiʻekiʻe, a no laila ʻaʻole hoʻohana ʻia no ka pale o nā limahana.

Hiki ke hāʻawi ʻia kēia ʻano mea e like me ke koi ʻia e NEC Pauku 210.13, 240.13, 230.95, a me 555.3.Hiki ke loaʻa ka ʻike alakaʻi UL no Ground-Fault Sensing and Relay Equipment ma lalo o ka UL Product Category KDAX.

ʻAe ʻia ʻo LCDI (Leakage Current Detector Interrupter) LCDI no nā ea ea lumi hoʻokahi-phase a me ka plug-connected e like me ka Pauku 440.65 o ka NEC.Hoʻohana ʻia nā hui kaula LCDI i kahi kaula kūikawā e hoʻohana ana i kahi pale a puni nā mea hoʻokele pākahi, a ua hoʻolālā ʻia e hoʻopau i ke kaapuni i ka wā e hiki mai ana ka leakage ma waena o kahi conductor a me ka pale.Hiki ke loaʻa ka ʻike alakaʻi UL no ka Leakage-Current Detection and Interruption ma lalo o ka UL Product Category ELGN.

EGFPD (Equipment Ground-Fault Protective Device) - Manaʻo ʻia no nā noi e like me ka deicing uila paʻa a me nā mea hoʻoheheʻe hau, a me nā mea hoʻomehana uila paʻa no nā pipeline a me nā moku, e like me nā ʻatikala 426 a me 427 i ka NEC.Ke hana nei kēia mea hana no ka wehe ʻana i ke kaapuni uila mai ke kumu o ka hoʻolako ʻana i ka wā i ʻoi aku ka nui o ka hewa o ka honua ma mua o ke kiʻekiʻe kiʻekiʻe kiʻekiʻe i kaha ʻia ma ka hāmeʻa, maʻamau 6 mA a 50 mA.Hiki ke loaʻa ka ʻike alakaʻi alakaʻi UL no nā Pūnaehana Pale ʻĀina-Fault ma lalo o ka UL Product Category FTTE.

Nā ALCI a me nā IDCI
ʻO kēia mau mea hana he UL Component i ʻike ʻia, ʻaʻole i manaʻo ʻia no ke kūʻai aku a hoʻohana paha.Hoʻohana ʻia lākou no ka hoʻohana ʻana ma ke ʻano he ʻāpana i hui ʻia e ka hale hana o nā mea pono kūikawā kahi i hoʻoholo ʻia ai ke kūpono o ka hoʻonohonoho ʻana e UL.ʻAʻole lākou i noiʻi ʻia no ka hoʻokomo ʻana i ke kahua, a ʻaʻole paha e hoʻokō i nā koi i ka NEC.

ALCI (Pūnaewele Leakage o kēia manawa) — He mea hoʻohana i nā mea uila, ua like nā ALCI me nā GFCI, no ka mea, ua hoʻolālā ʻia lākou e hoʻopau i ke kaʻapuni ke ʻoi aku ka hewa o ka honua ma mua o 6 mA.ʻAʻole i manaʻo ʻia kahi ALCI e pani i ka hoʻohana ʻana i kahi hāmeʻa GFCI, kahi e koi ʻia ai ka pale GFCI e like me ka NEC.

IDCI (Immersion Detection Circuit Interrupter) — He mea hana e hoopau ana i ke kaapuni hoolako i kekahi mea i hookomoia.Ke komo ka wai conductive i loko o ka mea hana a hoʻopili i kahi ʻāpana ola a me kahi mea ʻike i loko, hele ka hāmeʻa i ka wā e kahe ai kēia manawa ma waena o ka ʻāpana ola a ʻoi aku ka sensor ma mua o ka waiwai huakaʻi o kēia manawa.ʻO ka waiwai o ka huakaʻi ma lalo o 6 mA i lawa no ka ʻike ʻana i ka hoʻokomo ʻia ʻana o ka mea hana pili.ʻAʻole hilinaʻi ka hana o kahi IDCI i ke alo o kahi mea i hoʻokumu ʻia.