Ukugcinwa kunye novavanyo lweendlela ezilungileyo zoMphuhlisi weSekethe ye-ACB

Kwiinkqubo zokusasazwa kwamandla aphantsi, ii-air circuit breakers zidlala indima ebalulekileyo ekukhuseleni izixhobo zombane nasekuqinisekiseni ukuqhubeka kokusebenza. Ulondolozo olufanelekileyo kunye novavanyo lubalulekile ukuqinisekisa ukusebenza okuthembekileyo, ngakumbi kwizicelo ezinezinga eliphezulu lamandla kunye nemisebenzi yokutshintsha rhoqo. Ngokusebenzisa iinkqubo zokuhlola nokuvavanya ezisemgangathweni, abaqhubi banokunciphisa kakhulu umngcipheko wokungaphumeleli okungalindelekanga kunye nexesha lokungasebenzi elibizayo.

1. Uhlolo oluQhelekileyo kunye neenkqubo zokucoca

Ukuhlolwa rhoqo ngamehlo kwakha isiseko solondolozo olusebenzayo lokuthintela. Ukuqokelelwa kothuli, ukungena komswakama, kunye neempawu zokugqithisa kakhulu konke oku kunokuphazamisa ukusebenza kobushushu kunye nokuthembeka koomatshini.
Imisebenzi ephambili yokuhlola ibandakanya:

• Ukujonga iindawo zangaphandle ukuba azinazo iintanda, umhlwa, okanye izibophelelo ezikhululekileyo

• Ukuhlola ii-arc chutes kunye nezithintelo zokukhusela ubushushu ukuze kujongwe ungcoliseko okanye umonakalo

• Ukucoca izixhobo zangaphakathi usebenzisa izixhobo ezomileyo, ezingahambisi umbane

Kwiindawo zoshishino ezinzima, kucetyiswa ukuba kwenziwe uhlolo oluthe rhoqo ukuze kugcinwe iimeko zokusebenza ezifanelekileyo.

2. Ukuhlolwa Kokusebenza Koomatshini kunye noVavanyo lweMeko yoQhagamshelwano

Ukunyaniseka koomatshini kuchaphazela ngqo amandla esixhobo sokuvula nokuvala ngokuchanekileyo xa kukho ingxaki. Ukuhlolwa rhoqo koomatshini kufuneka kuqinisekise:

• Ukusebenza ngokutyibilikayo kweendlela zesandla nezeenjini

• Ukulungelelaniswa ngokuchanekileyo kweendawo ezihambayo kunye neendibano zokuncamathela

• Amanqanaba okuguguleka koqhagamshelwano kunye nemeko yomphezulu

Ukukhukuliseka okugqithisileyo kokuthintana kunokunyusa ukumelana nokuveliswa kobushushu, nto leyo eyenza uvavanyo olukhawulezileyo kunye nokutshintshwa kube yinto ebalulekileyo ukuze kuthembeke ixesha elide.

3. Iindlela zoVavanyo loMbane zoQinisekiso lokuSebenza oluthembekileyo

Uvavanyo lombane luqinisekisa amandla okukhusela ubushushu kunye nokuthwala umsinga wesixhobo. Uvavanyo oluqhelekileyo luquka:

• Ukulinganisa ukumelana nokufakwa kwe-insulation ukuze kubonwe ukonakala kokufakwa kwe-insulation

• Uvavanyo lokumelana nokuqhagamshelana ukuze kuchongwe umngcipheko ongaqhelekanga wokufudumala

• Uvavanyo lokumelana ne-dielectric ukuqinisekisa amandla okukhusela

Iziphumo zovavanyo kufuneka zithelekiswe rhoqo ngokubhekiselele kwiinkcukacha zomenzi kunye nedatha yembali ukuze kuchongwe iimpawu zokuqala zokuwohloka.

4. Ukuqinisekiswa koMmiselo woKhuseleko kunye noVavanyo oluSebenzayo

Useto oluchanekileyo lokhuseleko luqinisekisa ukuba i-breaker isabela ngokufanelekileyo kwi-overloads, ii-short circuits, kunye neempazamo zomhlaba. Iindlela ezilungileyo ziquka:

• Ukuqinisekisa useto lohambo lwexesha elide, olufutshane, nolukhawulezileyo

• Ukuqhuba uvavanyo lwesibini lokufaka inaliti ukuqinisekisa ukuchaneka kokudluliselwa kwereyi

• Ukwenza uvavanyo lohambo olusebenzayo phantsi kweemeko zempazamo ezilinganisiweyo

Ukulungelelaniswa okufanelekileyo nezixhobo zokukhusela ezisezantsi neziphezulu kubalulekile ukuze kuthintelwe ukuphazamiseka kwenkqubo ngokungeyomfuneko.

5. Ubuninzi boLondolozo, uXwebhu, kunye naMacebiso oKhuseleko

Amaxesha okugcina izinto kufuneka amiselwe ngokweemeko zokusebenza, amanqanaba omthwalo, kunye nokutshintsha rhoqo. Lonke uhlolo kunye novavanyo kufuneka lubhalwe phantsi ngononophelo, kuquka amaxabiso ovavanyo kunye namanyathelo okulungisa athathiweyo.
Izinto eziqwalaselwe ngokhuseleko zibaluleke ngokulinganayo:

• Landela iinkqubo zokutshixa/ukuthega (LOTO) ngaphambi kokuba ulungise

• Sebenzisa izixhobo zokuzikhusela ezifanelekileyo (i-PPE)

• Qinisekisa ukuthotyelwa kwemigangatho efanelekileyo ye-IEC kunye ne-IEEE

Amaxwebhu ahambelanayo axhasa uphicotho-zincwadi lokuthobela imithetho kwaye aphucula izigqibo zolawulo lweeasethi.

Isiphelo

Inkqubo yokugcina nokuvavanya ecwangcisiweyo ibalulekile ukuqinisekisa ukuthembeka kwexesha elide kwe-Isixhobo sokwaphula iisekethe ze-ACBNgokuhlola rhoqo, uvavanyo loomatshini nombane, kunye namaxwebhu achanekileyo, abaphathi beziko banokuphucula ukhuseleko lwenkqubo, bandise ubomi bezixhobo, kwaye banciphise ixesha lokungasebenzi elingalindelekanga kwiinkqubo ezibalulekileyo zokusasaza umbane.

Iireferensi

1. I-IEC 60947-2 –Iswitshi ye-voltage ephantsi kunye nezixhobo zokulawula: Ii-circuit-breakers

2. IEEE Std 3007.2 –Indlela Ecetyiswayo Yokugcina Iinkqubo Zamandla Ezemizi-mveliso Nezorhwebo

3. ISchneider Electric, ABB, Siemens – Izikhokelo zoBugcisa boLondolozo lweAir Circuit Breaker

FAQ

Q1: Kufuneka igcinwe kangaphi i-air circuit breaker?
A: Ukugcinwa rhoqo kuxhomekeke kwiimeko zokusebenza, kodwa uhlolo lwaminyaka le luqhelekile kwiindawo eziqhelekileyo, kunye nokuhlolwa rhoqo kwizicelo ezinzima okanye ezisebenza nzima.

Umbuzo 2: Kutheni uvavanyo lokumelana nokudibana lubalulekile?
A: Ukumelana okuphezulu kokuthintana kunokubangela ubushushu obugqithisileyo kunye nokunciphisa ukusebenza kakuhle kwe-breaker, okwenza ukubhaqwa kwangethuba kube yinto ebalulekileyo.

Umbuzo 3: Ngaba ukugcinwa kungenziwa ngelixa inkqubo inikwa amandla?
A: Hayi. Yonke imisebenzi yokulungisa kufuneka yenziwe phantsi kweemeko zokuphelelwa ngamandla kulandela iinkqubo zokhuseleko ezifanelekileyo.

Umbuzo 4: Yeyiphi imigangatho ekufuneka ilandelwe kulondolozo?
A: Imigangatho yamazwe ngamazwe efana ne-IEC 60947-2 kunye neendlela ezifanelekileyo ezicetyiswayo ze-IEEE kufuneka zilandelwe rhoqo.