BS EN 61643:21-2001+A2:2013

Izixhobo zokukhusela izixhobo ezinamandla asezantsi

Icandelo 21: Izixhobo zokukhusela ezixhume kunxibelelwano lonxibelelwano kunye nokusayina inethiwekhi

Intshayelelo yeSizwe

Umgangatho waseBritane kukuphunyezwa kwe-UK
EN 61643-21: 2001 + A2: 2013 Ithathwe kwi-IEC 61643-21: 2000, ibandakanya i-corrigendum ngoMatshi 2001 kunye nohlengahlengiso 2: 2012. Ithatha indawo ye-BS EN 61643-21: 2001 + A1: 2009, ethi irhoxiswe.

Ukuqala nokugqitywa kokubhaliweyo okwazisiweyo okanye okutshintshiweyo ngokulungiswa kubonisiwe kwisicatshulwa ziithegi. Iimpawu ezibonisa utshintsho kumbhalo we-IEC zithwele inani lezilungiso ze-IEC. Umzekelo, isicatshulwa esiguqulwe sisilungiso se-IEC 1 siboniswa ngu-A1.

Apho kuye kwenziwa uhlengahlengiso oluqhelekileyo kwisilungiso se-IEC, iithegi ziphethe inani lezilungiso, umzekelo, uhlengahlengiso oluqhelekileyo olwaziswe yiCENELEC kwisilungiso 1 se-IEC luboniswa yi-C1.

Ukuthatha inxaxheba e-UK kulungiselelo lwayo kwanikezelwa yiKomiti yezobuGcisa i-PEL / 37, iSurge Arresters -Voltage ePhakamileyo, kwiKomitana ye-PEL / 37/1, iSurge arresters - Low voltage.

Uluhlu lwemibutho emelweyo kule komitana inokufumaneka xa iceliwe kunobhala wayo.

Olu papasho aluthethi ukuba lubandakanya zonke izibonelelo eziyimfuneko zesivumelwano. Abasebenzisi banoxanduva lwesicelo esichanekileyo.

Ukuthotyelwa kweMigangatho yaseBritane akunako ukunika ukhuseleko kwizibophelelo zomthetho.

INTSHAYELELO

Injongo yalo Mgangatho waMazwe ngaMazwe kukuchonga iimfuno zeeSecurity Protect Devices (SPDs) ezisetyenziselwa ukukhusela unxibelelwano kunye nokusayina isisten okanye umzekelo idatha yeovolthi, ilizwi, kunye neesekethe zealam. Zonke ezi nkqubo zinokuvezwa ziziphumo zombane kunye neempazamo zomgca, nokuba kungokunxibelelana ngqo okanye ukwenziwa. Ezi ziphumo zinokubangela ukuba inkqubo ibe ngaphezulu kweevolvingi okanye i-overcurrents okanye zombini, ezinamanqanaba aphezulu ngokwaneleyo ukonzakalisa inkqubo. Ii-SPDs zenzelwe ukubonelela ngokhuseleko ngaphezulu kokungaphezulu kunye nokugqithisa okubangelwe ngumbane kunye neziphene zomgca wamandla. Lo mgangatho uchaza iimvavanyo kunye neemfuno ezimisela iindlela zokuvavanya ii-SPDs kunye nokumisela ukusebenza kwendlalifa.

Ii-SPDs ezibhekiswe kulo mgangatho wamanye amazwe zinokuba nezinto zokukhusela i-overvoltage kuphela, okanye indibaniselwano yovoto kunye nezinto ezikhuselekileyo zokukhusela izixhobo ezinamacandelo okhuseleko angaphaya kokungabikho kwalo mgangatho. Nangona kunjalo, izixhobo ezinokugqithisa kuphela
kugqunywe kwisihlomelo A.

I-SPD inokuthi iqulethe izinto ezininzi zokukhusela kunye nokukhuselwa okugqithisileyo. Zonke ii-SPD zivavanywa kwi "ibhokisi emnyama", okt, inani leetheminali ze-SPD limisela inkqubo yovavanyo, hayi inani lezinto kwi-SPD. Ukucwangciswa kwe-SPD kuchaziwe kwi-1.2. Kwimeko yee-SPDs zemigca emininzi, umgca ngamnye unokuvavanywa ngokuzimeleyo kwabanye, kodwa kunokubakho isidingo sokuvavanya yonke imigca ngaxeshanye.

Lo mgangatho ugubungela uluhlu olubanzi lweemeko neemfuno zokuvavanya; ukusetyenziswa kwezinye zezi kukuqonda komsebenzisi. Zichaza njani iimfuno zalo mgangatho kwiindidi ezahlukeneyo ze-SPD ezichazwe kwi-1.3. Ngelixa oku kungumgangatho wentsebenzo kwaye amandla athile afunwayo kwii-SPDs, amaqondo okusilela kunye nokutolika kwawo kushiyelwe kumsebenzisi. Imigaqo yokukhetha kunye nokusetyenziswa iya kugqitywa kwi-IEC 61643-22 1).

Ukuba i-SPD yaziwa njengesixhobo esinye secandelo, kufuneka ihlangabezane neemfuno zomgangatho ofanelekileyo kunye nale ikulo mgangatho.