BS EN 61643:21-2001+A2:2013

Amadivayisi wokuvikela amandla amancane

Ingxenye 21: Izinsimbi zokuvikela ezixhumene nezokuxhumana kanye nokusayina amanethiwekhi

Isibikezelo Sikazwelonke

Leli Zinga LaseBrithani ukuqaliswa kwe-UK kwe
EN 61643-21: 2001 + A2: 2013 Itholakala ku-IEC 61643-21: 2000, ifaka i-corrigendum Mashi 2001 kanye nokuchitshiyelwa 2: 2012. Ithatha indawo ye-BS EN 61643-21: 2001 + A1: 2009, ehoxisiwe.

Ukuqala nokuphela kombhalo owethulwe noma oguqulwe ngokuchibiyela kukhonjisiwe embhalweni ngamathegi. Amathegi akhombisa ushintsho embhalweni we-IEC aphethe inombolo yokuchitshiyelwa kwe-IEC. Isibonelo, umbhalo oguqulwe ngokuchitshiyelwa kwe-IEC 1 ukhonjiswa yi-A1.

Lapho kwethulwe ukuguqulwa okuvamile kokuchitshiyelwa kwe-IEC, amathegi aphatha inombolo yokuchitshiyelwa, isibonelo, ukuguqulwa okuvamile okwenziwe yi-CENELEC kuchitshiyelo 1 lwe-IEC kuboniswa yi-C1.

Ukubamba iqhaza kwe-UK ekulungiseleleni kwayo kwanikezwa yiKomidi Lezobuchwepheshe PEL / 37, iSurge Arresters - High Voltage, kwiKomitana Elincane PEL / 37/1, Ababoshiwe beSurge - Amandla aphansi.

Uhlu lwezinhlangano ezimelwe kuleli komidi elincane lungatholakala ngokucela unobhala walo.

Le ncwadi ayihlosile ukuthi ifake yonke imibandela edingekayo yenkontileka. Abasebenzisi banesibopho sesicelo sayo esifanele.

Ukuhambisana neZinga LaseBrithani ngeke kunikeze ukuzivikela ezibophweni zomthetho.

ISINGENISO

Inhloso yaleli Zinga Lomhlaba jikelele ukukhomba izidingo zeSurge Protective Devices (SPDs) ezisetshenziselwa ukuvikela ezokuxhumana ngocingo nokusayina isisten noma isibonelo idatha ye-ow-voltage, izwi, namasekhethi e-alamu. Zonke lezi zinhlelo zingavezwa yimiphumela yombani namaphutha emigqa, kungaba ngokuxhumana ngqo noma ngokufakwa. Le miphumela ingabeka uhlelo kuma-overvoltages noma ama-overcurrents noma womabili, amazinga awo aphakeme ngokwanele ukulimaza uhlelo. Ama-SPD enzelwe ukuthi ahlinzeke ngokuvikeleka kwama-overvoltages we-overs kanye nama-overcurrents abangelwa amaphutha wombani nezintambo zikagesi. Leli zinga lichaza izivivinyo nezidingo ezisungula izindlela zokuhlola ama-SPD nokunquma ukusebenza kwendlalifa.

Ama-SPD abhekiswe kuleli Zinga Lamazwe angaba nezakhi zokuvikelwa kwamandla okuvota kuphela, noma inhlanganisela yezingxenye zokuvikela ngokweqile nokuvikelwa okweqile kwamadivayisi wokuvikelwa aqukethe izinto zokuvikela ngokweqile kuphela awekho ngaphakathi kwaleli zinga. Noma kunjalo, amadivayisi ane-overcurre kuphela
embozwe isijobelelo A.

I-SPD ingahle ibe nezakhi zokuvikela ezeqile ngokweqile nezokuqhuma ngokweqile. Onke ama-SPD ahlolwa ngesisekelo se- “black box”, okungukuthi, inani lamatheminali we-SPD anquma inqubo yokuhlola, hhayi inani lezinto ezikwi-SPD. Ukulungiswa kwe-SPD kuchazwe ku-1.2. Endabeni yama-SPD amaningi womugqa, umugqa ngamunye ungahlolwa ngokuzimela kweminye, kepha futhi kungahle kube nesidingo sokuhlola yonke imigqa ngasikhathi sinye.

Leli zinga lihlanganisa izimo nezidingo zokuhlola ezahlukahlukene; ukusetshenziswa kwezinye zalezi kungokubona komsebenzisi. Izidingo zaleli zinga zihlobana kanjani nezinhlobo ezahlukahlukene ze-SPD kuchazwa ku-1.3. Ngenkathi lokhu kuyizinga lokusebenza futhi kufunwa amakhono athile kuma-SPD, amazinga okwehluleka nencazelo yawo ashiyelwa umsebenzisi. Izimiso zokukhetha nezokusetshenziswa zizofakwa ku-IEC 61643-22 1).

Uma i-SPD yaziwa njengedivayisi eyodwa, kufanele ihlangabezane nezimfuneko zezinga elifanele kanye nalelo elikuleli zinga.