Iziphumo zotyando zinokubangela ukusilela kwangoko okanye umonakalo kwisixhobo esibonakala kuphela ngexesha elide. Ii-SPD zivame ukufakwa ngaphakathi kweyunithi yomthengi ukukhusela ukufakwa kombane kodwa iintlobo ezahlukeneyo ze-SPD ziyafumaneka ukukhusela ukufakwa kwezinye iinkonzo ezingenayo, ezifana nemigca yefowuni kunye ne-TV ye-cable. Kubalulekile ukukhumbula ukuba ukukhusela ukufakela kombane kuphela kwaye hayi ezinye iinkonzo ezinokushiya enye indlela yombane odlulayo ukungena kufakelo.

Kukho iintlobo ezintathu ezahlukeneyo zezixhobo zoKhuseleko lweSurgery:

• Type 1 SPD efakwe kwimvelaphi, umz. ibhodi yokuhambisa engundoqo.
• Uhlobo lwe-2 SPD efakwe kwiibhodi zokusasaza ezincinci
  • (Udidi oludibeneyo lwe-1 & 2 SPDs luyafumaneka kwaye luhlala lufakwe kwiiyunithi zabathengi).
• Uhlobo lwe-3 SPD efakwe kufutshane nomthwalo okhuselweyo. Kufuneka zifakwe kuphela njengesongezelelo kwi-Type 2 SPD.

Apho kufuneka izixhobo ezininzi ukukhusela ukufakela, kufuneka zilungelelaniswe ukuqinisekisa ukusebenza okuchanekileyo. Izinto ezibonelelwa ngabavelisi abahlukeneyo kufuneka ziqinisekiswe ukuhambelana, i-installer kunye nabavelisi bezixhobo babekwe kakuhle ukunika isikhokelo kule nto.

Ziziphi ii-overvoltages ezidlulayo?

Ukugqithisa okudlulayo okudlulayo kuchazwa njengokuhamba kombane okwexesha elifutshane okwenzeka ngenxa yokuphuma kwamandla ngesiquphe ebegcinwe ngaphambili okanye enyanzelwa ngezinye iindlela. Ukugqithiswa kombane okudlulayo kunokuthi kwenzeke ngokwendalo okanye kwenziwe ngumntu.

Zenzeka njani ii-overvoltages ezidlulayo?

Izinto ezidlulayo ezenziwe ngumntu zivela ngenxa yokutshintsha kweemotor kunye neziguquli, kunye nezinye iintlobo zokukhanyisa. Ngokwembali oku bekungeyongxaki kufakelo lwasekhaya kodwa kutsha nje, ufakelo luyatshintsha ngokufika kobugcisa obutsha obufana nokutshaja isithuthi sombane, iimpompo zobushushu zomoya/umthombo osemhlabeni kunye noomatshini bokuhlamba abalawulwa msinyane benze ukuba izinto ezidlulayo zibe lula ukuba zenzeke ngaphakathi kufakelo lwasekhaya.

Ukugqithisa kwendalo okwexeshana okwexeshana kwenzeka ngenxa yokubetha kombane okungathanga ngqo okunokwenzeka ngenxa yombane othe ngqo kumbane osecaleni osecaleni okanye intambo yefowuni ebangela ukuba umbane odlulayo uhambe ecaleni kwemigca, enokubangela umonakalo omkhulu kufakelo lombane kunye nezixhobo ezinxulumeneyo.

Ingaba kufuneka ndifake iiSPDs?

Ushicilelo lwangoku lwe-IET Wiring Regulations, BS 7671: 2018, ithi ngaphandle kokuba uvavanyo lomngcipheko lwenziwe, ukukhuselwa kwi-overvoltage edlulayo kuya kubonelelwa apho isiphumo esibangelwa ku-overvoltage sinokuthi:

• Isiphumo sokwenzakala kakhulu, okanye ekuphulukaneni nobomi bomntu; okanye
• Isiphumo sokuphazanyiswa kweenkonzo zoluntu kunye/okanye umonakalo kwilifa lenkcubeko; okanye
• Isiphumo sokuphazanyiswa kwemisebenzi yorhwebo okanye yoshishino; okanye
• Ichaphazela inani elikhulu labantu abahlala kunye.

Lo mmiselo usebenza kuzo zonke iindidi zezakhiwo ezibandakanya ezasekhaya, zorhwebo kunye nezoshishino.

Kuhlelo lwangaphambili lwe-IET Wiring Regulations, BS 7671: 2008 + A3: 2015, bekukho ngaphandle kwezinye iindawo zokuhlala zasekhaya ukuba zingabandakanywa kwiimfuno zokukhusela i-surge, umzekelo, ukuba zibonelelwe ngekhebula elingaphantsi komhlaba, kodwa ngoku sele isusiwe kwaye ngoku iyimfuneko kuzo zonke iintlobo zeendawo ezibandakanya indawo yokuhlala enye. Oku kusebenza kuzo zonke izakhiwo ezitsha kunye neepropathi eziphinda zifakwe iintambo.

Ngelixa i-IET Wiring Regulations ingabonakali emva, apho umsebenzi wenziwa kwisekethe ekhoyo ngaphakathi kofakelo oluye lwayilwa kwaye lwafakelwa kuhlelo lwangaphambili lwe-IET Wiring Regulations, kuyimfuneko ukuqinisekisa ukuba isiphaluka esilungisiweyo sihambelana noshicilelo lwamva nje, oku kuya kuba luncedo kuphela ukuba i-SPD ifakwe ukukhusela ukufakela konke.

Isigqibo malunga nokuba uthenge i-SPDs ezandleni zomthengi, kodwa kufuneka banikwe ulwazi olwaneleyo ukwenza isigqibo esinolwazi malunga nokuba banqwenela ukushiya i-SPD. Isigqibo kufuneka senziwe ngokusekelwe kwimiba yengozi yokhuseleko kunye nokulandela ukuvavanywa kweendleko ze-SPDs, ezinokuxabisa nje ezimbalwa ezingamakhulu eeponti, ngokuchasene neendleko zofakelo lombane kunye nezixhobo eziqhagamshelwe kuyo ezifana neekhomputha, iiTV kunye nezixhobo eziyimfuneko, umzekelo, ukufunyanwa komsi kunye nokulawula ibhoyila.

Ukukhuselwa kwe-surgery kunokufakwa kwiyunithi ekhoyo yabathengi ukuba indawo efanelekileyo ebonakalayo yayikhona okanye, ukuba indawo eyaneleyo yayingekho, inokufakwa kwindawo evalelekileyo yangaphandle kufuphi neyunithi ekhoyo yabathengi.

Kukwafanelekile ukujonga nenkampani yakho yeinshurensi njengoko eminye imigaqo-nkqubo inokuthi izixhobo kufuneka zifakwe kwi-SPD okanye aziyi kuhlawula xa kukho ibango.