Te māramatangaNgā RCCB me ngā MCBNgā Wāhanga Matua o te Haumaru Hiko
I roto i te ao o ngā whakaurunga hiko, he mea tino nui te haumaru. E rua ngā taputapu matua e whai wāhi nui ana ki te whakarite i te haumaru hiko ko ngā kaiwawao iahiko toenga (RCCB) me ngā kaiwawao iahiko iti (MCB). Ahakoa e whakamahia ana ēnei e rua hei tiaki i ngā iahiko hiko, he rerekē te mahi, ā, he rerekē hoki te hoahoa mō ngā kaupapa rerekē. Ka tirohia e tēnei tuhinga ngā mahi, ngā rerekētanga, me ngā tono o ngā RCCB me ngā MCB, me te whakaatu i tō rāua hiranga i roto i ngā pūnaha hiko hou.
He aha te RCCB?
He taputapu haumaru te RCCB (Residual Current Circuit Breaker) e kitea ai te kore taurite o te au. He mea hanga hei ārai i te ru hiko me te whakaiti i te mōrearea o ngā ahi hiko i puta mai i ngā hapa whenua. Ka aroturuki tonu te RCCB i te au e rere ana i roto i ngā waea wera me ngā waea kūpapa o te ara iahiko. Mena ka kitea he rerekētanga o te au (e tohu ana kei te turuturu tetahi o te au ki te whenua), ka motuhia, ka whakatuwherahia te ara iahiko i roto i ngā mirihekona. He mea nui tēnei tauhohenga tere hei tiaki i ngā tāngata mai i te ru hiko me te ārai i ngā tūponotanga kino.
Ko te whakatauranga o ngā RCCB he mea whakarite ki ngā milliampere (mA) ā, e wātea ana i roto i ngā taumata aro, pērā i te 30mA mō te tiaki whaiaro me te 100mA, 300mA rānei mō te tiaki ahi. He mea whakamahi noa ēnei i roto i ngā taiao noho, arumoni me ngā taiao ahumahi, inā koa kei reira te wai, pērā i ngā kaukau me ngā kīhini.
He aha te MCB?
Ko ngā MCB (ngā kaiwawao hiko iti), i tētahi atu taha, he mea hanga hei tiaki i ngā hiko mai i ngā taumahatanga me ngā poto o te hiko. Kāore i rite ki ngā RCCB, e aro ana ki te kimi i ngā hapa whenua, ka aroturukihia e ngā MCB te ia e rere ana i roto i te hiko. Mena ka nui ake te ia i te kaha kua tohua o te MCB, ka motuhia, ka momotu i te hiko hei ārai i te wera nui me ngā tūponotanga ahi.
Ko ngā MCB he mea whakatau i roto i ngā amperes (A) ā, he maha ngā momo, tae atu ki te Momo B, Momo C, me te Momo D, i hangaia kia whati i ngā taumata iahiko rerekē. He pai te Momo B mō ngā tono kāinga, ko te Momo C me te Momo D ia e whakamahia ana i roto i ngā taiao arumoni me ngā taiao ahumahi e tika ana kia nui ake ngā iahiko tomo.
Ngā rerekētanga matua i waenga i te RCCB me te MCB
Ahakoa he mea nui ngā RCCB me ngā MCB mō te haumaru hiko, he rerekē ā rāua mahi:
1. Mahi: Ka whakamahia te RCCB hei tiaki i te hē o te whenua me te ru hiko, ko te MCB ia hei tiaki i te taumaha rawa me te ara iahiko poto.
2. Tikanga Kimi: Ka kitea e te RCCB te kore taurite i waenga i ngā iahiko ora me ngā iahiko kūpapa i te mea ka aroturukihia e te MCB te iahiko katoa e rere ana i roto i te ara iahiko.
3. Te Whakamahinga: He mea nui te RCCB i ngā wāhi e nui ana te mōrearea o te ru hiko, engari ko te MCB e whakamahia ana hei tiaki i ngā ara iahiko mai i te iahiko nui rawa.
4. Te Tairongo: He tairongo ngā RCCB ki ngā turuturu iti o te iahiko, engari ko ngā MCB he mea hanga hei whakahaere i ngā taumata iahiko teitei ake i mua i te hinganga.
Te hiranga o te whakamahi i te RCCB me te MCB
Mō te haumaru hiko tino pai, e taunakihia ana kia whakamahia te RCCB me te MCB. Mā tēnei huinga ka whakaratohia he parenga whānui mō te hapa whenua me te taumaha rawa. I roto i tētahi tāutanga hiko noa, ka taea te whakanoho i te RCCB ki te papa whakawhiti matua hei tiaki i ngā ara iahiko katoa, ā, ka taea te whakamahi i tētahi MCB motuhake mō ia ara iahiko hei tiaki i ngā taumaha rawa.
Hei whakarāpopototanga, he mea nui te mārama ki te mahi a ngā RCCB me ngā MCB mō te hunga katoa e uru ana ki te tāutanga hiko, ki te tiaki rānei. Mā te whakauru i ēnei taputapu e rua ki roto i ngā pūnaha hiko, ka taea e tātou te whakapai ake i te haumaru, te tiaki i ngā oranga, me te ārai i ngā kino ki ngā taonga. I te whanaketanga o te hangarau, ka piki haere tonu te hiranga o ēnei taputapu, ka waiho hei wāhanga nui o te haumaru hiko o ēnei rā.
Wā tuku: Hanuere-08-2025