Kungani kufanele kufakwe isivikelo sokukhuphuka ebhokisini lokusabalalisa?

Iyini indima ye-idivayisi yokuvikela ukukhuphuka(i-SPD) ebhokisini lokusabalalisa:
Isivikelo sokukhuphuka sifakwe ngemuva kwe-input circuit breaker ngaphakathi kwebhokisi lokusabalalisa, futhi umsebenzi waso oyinhloko ukuvikela umbani. Igama laso eliphelele lithi: isivikelo sokukhuphuka kombani.
Le divayisi yokuvikela i-overvoltage yenzelwe ukuvimbela izinhlekelele zombani, futhi kuyadingeka futhi ukucabangela i-overvoltage ezwakalayo emgqeni wokusabalalisa we-low voltage. Iyidivayisi yokuvikela ebalulekile ohlelweni lokunikezwa kwamandla kagesi oluphansi.
Isimo sezulu esivunguzayo sivikela ibhokisi lokusabalalisa ekuhlaselweni kombani, futhi i-voltage iphezulu, futhi ugesi omkhulu ungena ngokushesha emhlabeni usuka ocingweni lokuvikela umbani. Idivayisi yokuvikela ukukhuphuka kwegesi ingumqaphi womsebenzi wethu wokuphepha wansuku zonke.
Izivikeli zokuhlinzwa zifaneleka ezindaweni ezahlukene:
Ngokuvamile ifakwe emabhokisini okusabalalisa, izikhungo zamakhompyutha, amakamelo okuxhumana, amakamelo okulawula ikheshi, amakamelo e-TV yekhebula, amakamelo okulawula okuzenzakalelayo okwakha, izikhungo zomlilo, amakamelo okulawula okuzenzakalelayo ezimbonini, amakamelo okulawula imishini yokuguqula imvamisa, amakamelo okusebenzela esibhedlela, amayunithi okunakekela abagula kakhulu kanye namabhokisi okusabalalisa ahlonyiswe ngemishini yezokwelapha kagesi, njll. Ngaphezu kwalokho, ingafakwa futhi ebhokisini lokusabalalisa izibani eliyinhloko lezakhiwo zokuhlala ezingaphansi kwezitezi eziyisithupha.
Indlela yokuhlomisa isivikelo sokukhuphuka kwamandla ebhokisini lokusabalalisa:
I-SPDingahlukaniswa ibe yizivikelo zombani ze-Class A, Class B, Class C, kanye ne-Class D, ezinqunywa ngokwe-voltage kanye nomthamo webhokisi lokusabalalisa. Ukusatshalaliswa kwe-380V kusebenzisa isivikelo sombani se-Class B, 40KA~60KA. Ibhokisi lokusabalalisa le-220V lisebenzisa isivikelo sombani se-Class C, 20KA~40KA.
Kungani ibhokisi lokusabalalisa kufanele libe nesivikelo sokuqhuma?
Ngesikhathi sokukhishwa kombani, i-voltage iphezulu, ugesi mkhulu, kanti isikhathi sokukhishwa kwamandla sifushane. Akwanele ukuthembela kuphela ekuvikelweni kombani kwangaphandle (izinduku zombani, njll.). Amagagasi ombani azohlasela ngokuqondile noma ngokungaqondile izintambo zikagesi, izintambo zesignali, izintambo zokuphakela ze-antenna, kanye namapayipi ensimbi. Umbani kanye ne-overvoltage ebangelwayo kuzobangela umonakalo omkhulu ezinhlelweni ze-elekthronikhi, zemishini kagesi, kanye nezinhlelo zenethiwekhi yolwazi.
Umonakalo obangelwa umbani ungenye yezinhlekelele zemvelo ezimbi kakhulu. I-voltage eseleyo kanye nombani wokungenisa okhiqizwa umbani kusazothinta imishini kagesi esetshenziswa ekhaya, okubangela ukujikeleza okufushane emishini kagesi esetshenziswa ekhaya, okuholela ekulahlekelweni okuqondile njengokusha nokuqhuma.