Iimpawu zeResidual Current Devices (RCDs)

Izixhobo Zangoku Ezishiyekileyo (RCDs), eyaziwa ngokuba yiResidual Current Circuit Breakers (RCCBs), zizixhobo ezibalulekileyo zokhuseleko kwiinkqubo zombane. Zikhusela abantu kwizithuko zombane kwaye zinceda ekuthinteleni imililo ebangelwa ziingxaki zombane. Ii-RCDs zisebenza ngokujonga rhoqo umbane ohamba ngeengcingo. Ukuba baphawula ukuba umbane othile uvuza apho ubungafanele uvuze khona, bawucima ngokukhawuleza umbane. Esi senzo sikhawulezileyo sinokusindisa ubomi ngokunqanda ukothuka kombane okuyingozi ngaphambi kokuba kwenzeke.

Ii-RCDs ziluncedo ngakumbi kwiindawo apho amanzi nombane unokuxubana, njengezindlu zangasese kunye namakhitshi, kuba amanzi anokwenza ukothuka kombane kwenzeke ngakumbi. Zikwabalulekile kwiindawo zokwakha nakwezinye iindawo apho iingozi zombane zinokwenzeka ngokulula. Ii-RCDs ziyakwazi ukubona nokuba umbane omncinci ulahlekile, nto leyo ezenza zibe nobuchule ekugcineni abantu bekhuselekile. Basebenza kunye namanye amanyathelo okhuseleko, njengocingo olufanelekileyo kunye nokubeka phantsi komhlaba, ukwenza iinkqubo zombane zikhuseleke kangangoko kunokwenzeka. Kumazwe amaninzi, imithetho ifuna ukuba ii-RCD zifakwe emakhayeni nasezindaweni zokusebenza kuba zikwazi ukuthintela iingozi. Lilonke, ii-RCDs zidlala indima ebalulekileyo ekwenzeni usetyenziso lwethu lombane lwemihla ngemihla lukhuseleke kakhulu.

Iimpawu zeResidual yeZixhobo zangoku (Ii-RCDs)

Uvakalelo oluPhezulu lokuvuza kwangoku

Ii-RCDs ziyilelwe ukubona izixa zombane ezincinci kakhulu ezihamba apho zingafanelanga ukuya khona. Oku kubizwa ngokuba yi-leakage current. Uninzi lwee-RCDs zinokubona ukuvuza okuncinci njenge-30 milliamps (mA), eliqhezu elincinci lombane oqhele ukuhamba kwisekethe. Ezinye ii-RCD ezisetyenziswa kwiindawo ezinobuzaza ngakumbi ziyakwazi ukubona ubuncinci njenge-10 mA. Obu buntununtunu buphezulu bubalulekile kuba nombane omncinci ohamba emzimbeni womntu unokuba yingozi. Ngokufumanisa oku kuvuza kuncinci, ii-RCDs zinokuthintela ukutshatyalaliswa kombane ngaphambi kokuba kube yingozi. Eli nqaku lenza ii-RCDs zikhuseleke kakhulu kunezaphuli zesekethe eziqhelekileyo, ezisabela kuphela kwiingxaki ezinkulu kakhulu.

Indlela yokuHamba ngokukhawuleza

Xa i-RCD ibona ingxaki, kufuneka isebenze ngokukhawuleza ukukhusela ingozi. Ii-RCD zenzelwe "ukuhamba" okanye ukuvala umbane kwiqhezu lesibini. Uninzi lwee-RCDs zinokusika amandla ngaphantsi kwe-40 milliseconds (leyo yi-40 yamawaka esekhondi). Esi santya sibalulekile kuba sinokwenza umahluko phakathi komothuko omncinci kunye nokothuka kombane okumandundu okanye okubulalayo. Isixhobo sokukhubeka ngokukhawuleza sisebenza ngokusebenzisa iswitshi ekhethekileyo eyenziwa kukubona ukuvuza kwangoku. Esi senzo sikhawulezayo yintoni eyenza ii-RCDs zisebenze kakhulu ekuthinteleni ukulimala kombane.

Ukuseta kwakhona okuzenzekelayo ukukwazi

Ii-RCD ezininzi zanamhlanje ziza nokusetha kwakhona okuzenzekelayo. Oku kuthetha ukuba emva kokuba i-RCD ikhubekile kwaye ingxaki ilungisiwe, inokuzibuyisela umva ngaphandle kokuba umntu ayenze ngokutsha ngesandla. Oku kuluncedo kwiimeko apho umcimbi wethutyana unokubangela ukuba i-RCD ihambe, njengokuhamba kwamandla ngexesha lokuduma kwendudumo. Nangona kunjalo, kubalulekile ukuqaphela ukuba ukuba i-RCD ihlala ikhubeka, ngokuqhelekileyo kuthetha ukuba kukho ingxaki eqhubekayo efuna ukulungiswa ngumbane. Indawo yokusetha kwakhona ngokuzenzekelayo yenzelwe ukulinganisa ukukhululeka kunye nokhuseleko, ukuqinisekisa ukuba amandla abuyiselwe ngokukhawuleza xa kukhuselekile ukwenza njalo.

Iqhosha loVavanyo

Ii-RCD ziza kunye neqhosha lokuvavanya elivumela abasebenzisi ukuba bahlole ukuba isixhobo sisebenza ngokufanelekileyo. Xa ucinezela eli qhosha, lenza encinci, elawulwayo evuzayo yangoku. Oku kulinganisa imeko yesiphoso, kwaye ukuba i-RCD isebenza ngokuchanekileyo, kufuneka ihambe ngokukhawuleza. Kuyacetyiswa ukuba uvavanye ii-RCDs rhoqo, ngokuqhelekileyo malunga nokuba kanye ngenyanga, ukuqinisekisa ukuba zisebenza kakuhle. Olu phawu lulula lunika abasebenzisi indlela elula yokuqinisekisa ukuba isixhobo sabo sokhuseleko sikulungele ukubakhusela ukuba kukho impazamo yokwenyani. Ukuvavanya rhoqo kunceda ukubamba naziphi na iingxaki nge-RCD ngokwayo ngaphambi kokuba kuvele imeko eyingozi.

Iinketho eziKhethekileyo nezilibaziseke ngexesha

Ezinye ii-RCD, ngakumbi ezo zisetyenziswa kwiinkqubo zombane ezinkulu okanye ezintsonkothileyo, ziza neenketho ezikhethiweyo okanye ezilibaziseka ixesha. Ezi mpawu zivumela i-RCD ukuba idibanise nezinye izixhobo zokukhusela kwinkqubo. I-RCD ekhethiweyo inokwahlula phakathi kwesiphoso kwisiphaluka sayo kunye nesiphoso ngakumbi phantsi komgca, ukukhubeka kuphela xa kuyimfuneko ukuhlukanisa indawo yengxaki. Ii-RCD ezilibaziseka ixesha zilinda ixesha elifutshane ngaphambi kokuba zikhubeke, zivumela ukunyuka okwethutyana ukuba kudlule ngaphandle kokusika amandla. Ezi zikhetho ziluncedo ngokukhethekileyo kwizicwangciso zemizi-mveliso okanye kwizakhiwo ezinkulu apho ukugcinwa kombane kubaluleke kakhulu, kwaye apho iindawo ezininzi zokukhusela zikhona.

Umsebenzi oMbini: I-RCD kunye ne-Circuit Breaker edibeneyo

Izixhobo ezininzi zanamhlanje zidibanisa imisebenzi ye-RCD kunye naleyo ye-breaker circuit rhoqo. Ezi zidla ngokubizwa ngokuba zii-RCBOs (Intsalela yangoku yeSahluli enokhuseleko olungaphaya). Lo msebenzi umbini uthetha ukuba isixhobo sinokukhusela kuzo zombini ukuvuza kwangoku (njenge-RCD eqhelekileyo) kunye nokugqithiswa okanye iisekethe ezimfutshane (njenge-breaker circuit breaker). Lo msebenzi odibeneyo ugcina indawo kwiipaneli zombane kwaye unikezela ukhuseleko olubanzi kwisixhobo esisodwa. Iluncedo ngakumbi ezindlini nakumashishini amancinci apho indawo yezixhobo zombane inokuncipha.

IiReyithingi zoBuvakalelo ezohlukeneyo kwii-Aplikheyishini ezahlukeneyo

Ii-RCDs ziza neereyithingi ezahlukeneyo zobuntununtunu ukuze zilungele izicelo ezahlukeneyo. Umlinganiselo oqhelekileyo wokusetyenziswa kwekhaya ngu-30 mA, obonelela ngokulinganisela okulungileyo phakathi kokhuseleko kunye nokuphepha ukuhamba ngokungeyomfuneko. Nangona kunjalo, kwezinye iimeko, uvakalelo olwahlukileyo luyafuneka. Umzekelo, kwiindawo zemizi-mveliso apho kusetyenziswa oomatshini abakhulu, umsinga wohambo ophezulu (onjenge-100 okanye 300 mA) unokusetyenziselwa ukuthintela ukukhubeka kwenkathazo okubangelwa kukusebenza okuqhelekileyo koomatshini. Kwelinye icala, kwiindawo ezinobuzaza kakhulu njengamadama okuqubha okanye amaziko onyango, imisinga yohambo olusezantsi (enjenge-10 mA) inokusetyenziselwa ukhuseleko oluphezulu. Olu luhlu lweemvakalelo luvumela ii-RCD ukuba zilungelelaniswe kwiimfuno ezithile zeendawo ezahlukeneyo.

Ukuqukumbela

Izixhobo Zangoku ezishiyekileyo (RCDs)zibalulekile kukhuseleko lombane kumakhaya ethu nakwiindawo zokusebenza. Babona ngokukhawuleza kwaye bayeke ukuvuza okuyingozi kombane, ukuthintela ukothuka kunye nomlilo. Ngeempawu ezinjengovakalelo oluphezulu, isenzo esikhawulezayo, kunye novavanyo olulula, ii-RCDs zibonelela ngokhuseleko oluthembekileyo. Banokusebenza kwiindawo ezahlukeneyo, ukusuka kumagumbi okuhlambela ukuya kwiifektri, ukulungelelanisa neemfuno ezahlukeneyo. Ezinye ii-RCD zide zidibanise imisebenzi emininzi, iyenze ibe luncedo kakhulu. Uvavanyo lwarhoqo lunceda ukuqinisekisa ukuba bahlala bekulungele ukusikhusela. Njengoko sisebenzisa izixhobo zombane ngakumbi kubomi bethu bemihla ngemihla, ii-RCDs zibaluleke ngakumbi. Zisenza sibe noxolo lwengqondo, sisazi ukuba sikhuselekile kwiingozi zombane. Lilonke, ii-RCDs zidlala indima ebalulekileyo ekusigcineni sikhuselekile malunga nombane.