EN 61643-11 & IEC 61643-21: 2012 Yakadzika magetsi ekuwedzera ekuchengetedza michina - Chikamu 21: Midziyo yekudzivirira inowirirana yakabatana neterevhizheni uye inoratidzira network - Maitiro ekuita uye nzira dzekuyedza

ZVEKUITA

1) International Electrotechnical Commission (IEC) isangano repasirese rekumisikidza rinosanganisira makomititi emagetsi emunyika (IEC Makomiti Enyika). Chinangwa cheIEC ndechekusimudzira kudyidzana kwepasi rose pamibvunzo yese ine chekuita nekumisikidzwa muminda yemagetsi nemagetsi. Kuti izvi zviitike uye kuwedzera kune zvimwe zviitiko, IEC inoburitsa International Standards, technical Specific, technical Reports, Ruzhinji Ruripo Ruzivo (PAS) uye maGuides (pano anotevera anonzi "IEC Kuburitswa (ma)"). Kugadzirira kwavo kwakapihwa kumakomiti ehunyanzvi; chero IEC National Committee inofarira nyaya inobatwa inogona kutora chikamu mune iri basa rekugadzirira. Masangano epasi rose, ehurumende uye asiri ehurumende anobatana neIEC vanoitawo gadziriro iyi. IEC inoshanda pamwe neInternational Organisation for Standardization (ISO) maringe nemitemo yakatemwa nechibvumirano pakati pemasangano maviri aya.

2) Sarudzo dzepamutemo kana zvibvumirano zveIEC pazvinhu zvehunyanzvi zvinoratidzira, sezvinobvira, kubvumirana kwepasi rose kwemaonero pazvinhu zvakakodzera sezvo komiti yega yega yeumiriri inomiririrwa kubva kune vese vanofarira maIEC Makomiti eNyika.

3) IEC Mabhuku ane fomu yemazano ekushandiswa kwepasi rose uye anotambirwa neIEC maNational Committees nenzira iyoyo. Kunyange kuedza kwese kunoitwa kunoitwa kuve nechokwadi chekuti zvemukati meIEC Mabhuku ari echokwadi, IEC haigone kuve nemhosva nemashandisirwo avari kuitwa kana chero
kuturikirwa zvisirizvo nechero mushandisi wekupedzisira.

4) Kuti ikwidziridze kufanana kwenyika dzese, maIEC MaKomiti eNyika anozvipira kushandisa IEC Mabudiro pachena pachena kusvika pazvinogoneka mumabhuku avo emunyika nemudunhu. Chero kupesana pakati pechero IEC Kuburitswa uye inoenderana yenyika kana yedunhu kuburitswa ichanyatsoratidzwa mune yekupedzisira.

5) IEC pachayo haipe chero humbowo hwekuenderana. Masangano akazvimirira ekuzvipa anopa kuenderana kwekuongorora masevhisi uye, mune dzimwe nzvimbo, kuwana maIEC mamaki ekuenderana. IEC haina mutoro kune chero masevhisi anoitwa nemasangano akazvimiririra ekuzivisa.

6) Vese vashandisi vanofanirwa kuona kuti vane yazvino vhezheni yechinyorwa chino.

7) Hapana chikwereti chinosungirirwa kuIEC kana madhairekitori, vashandi, vashandi kana vamiririri vanosanganisira nyanzvi dzega uye nhengo dzemakomiti ayo ehunyanzvi uye maIEC MaKomiti Enyika ekukuvara kweumwe neumwe, kukuvara kwepfuma kana kumwe kukuvara kwechero chinhu chipi zvacho, chingave chakanangana kana chisina kunangana, kana pamitengo (inosanganisira mari yepamutemo) nemari inoshandiswa kubva mukuburitswa, kushandiswa, kana kuvimba, neIEC Publication iyi kana chero rimwe bhuku reIEC.

8) Kucherechedzwa kunoitwa kune zvinowanzoitika mareferenzi akataurwa mubhuku rino. Kushandiswa kwezvinyorwa zvakadomwa kwakakosha mukushandisa chaiko kwechinyorwa chino.

9) Kucherechedzwa kunokwezverwa kune mukana wekuti zvimwe zvezvinhu zveiyi IEC Kuburitswa zvinogona kunge zviri nyaya yekodzero dzepamutemo. IEC haizovi nemhosva yekuona chero kana chero kodzero dzakadaro dzepamutemo.

International Standard IEC 61643-21 yakagadzirirwa ne subcommittee 37A: Low-voltagesurge inodzivirira michina, yeIEC technical committee 37: Surge vanosungwa.

Iyi yakasimbiswa vhezheni yeIEC 61643-21 ine yekutanga edition (2000) [zvinyorwa 37A / 101 / FDIS uye 37A / 104 / RVD], kugadzirisa kwayo 1 (2008) [zvinyorwa 37A / 200 / FDIS uye 37A / 201 / RVD ], kugadzirisa kwaro 2 (2012) [zvinyorwa 37A / 236 / FDIS uye 37A / 237 / RVD] uye corrigendum yayo yaKurume 2001.

Izvo zvemukati zvemukati saka zvakaenzana neiyo base edition uye zvigadziridzo zvayo uye zvakagadzirirwa mushandisi zviri nyore.

Iyo inotakura iyo yekuburitsa nhamba 1.2.

Mutsara wakatarisana mumahombekombe unoratidza uko iro rekutanga bhuku rakashandurwa nekugadziriswa 1 ne2.

Dare rakafunga kuti zvirimo mugwaro rekushambadzira uye zvigadziriso zvaro zvicharamba zvisina kushanduka kudzamara zuva rekugadzikana ratarwa pawebsite yeIEC pasi pe "http://webstore.iec.ch" mune data rine chekuita nechinyorwa chakatsanangurwa. Parizvino, chinyorwa chichava
• kusimbiswazve,
• kubviswa,
• yakatsiviwa neyakagadziridzwa, kana
• yakagadziriswa.

NHANGANYAYA

Chinangwa cheiyi International Standard ndechekuziva izvo zvinodiwa zveSurge Protective Devices (SPDs) inoshandiswa mukudzivirira materevhizheni uye masystem masisitimu, semuenzaniso, yakaderera-magetsi data, izwi, uye ma alarm macircuit. Ese aya masisitimu anogona kuratidzwa kumhedzisiro yemheni uye magetsi tambo zvikanganiso, kungave kuburikidza nekunangana kwakananga kana kuburitswa. Iyi mhedzisiro inogona kuisa sisitimu kune ekuwandisa kana ekuwandisa kana maviri, ayo mazinga akakwana zvakakwana kuti akanganise hurongwa. MaSPD anoitirwa kupa chengetedzo kubva pakukwirisa uye overcurrents inokonzerwa nemheni uye magetsi tambo zvikanganiso. Uyu mureza
inotsanangura bvunzo nezvinodiwa izvo zvinogadzira nzira dzekuyedza maPSD uye kuona mashandiro avo.

Iyo SPDs yakatariswa mune ino International Standard inogona kunge iine overvoltage chengetedzo yezvinhu chete, kana musanganiswa we overvoltage uye yakawandisa kuchengetedza zvikamu. Zvidziviriro zvekuchengetedza zvine zvakawandisa zvikamu zvekudzivirira chete hazvisi mukati mekufukidzwa kweichi chiyero. Nekudaro, zvishandiso zvine chete zvakawandisa zvidziviriro zvikamu zvakafukidzwa mune anowedzera Annex.

Iyo SPD inogona kuve iine akati wandei kupfuuridza uye kwakapfuura kuchengetedza zvikamu. Ese maSDD anoedzwa pane "nhema bhokisi" hwaro, kureva kuti, huwandu hwezviteshi zvePSD zvinotarisa nzira yekuyedza, kwete huwandu hwezvinhu zviri muPSD. Kugadziriswa kwePSD kunotsanangurwa muna 1.2. Muchiitiko cheakawanda mitsara SPDs, tambo yega yega inogona kuyedzwa yakazvimiririra kune vamwe, asi panogona zvakare kuve nechido chekuyedza mitsara yese panguva imwe chete.

Iyi muyero inovhara akasiyana siyana mamiriro ekuyedza uye zvinodiwa; iko kushandiswa kweimwe yeiyi kuri mukufunga kwemushandisi. Izvo zvinodikanwa zveichi chiyero zvine chekuita nemhando dzakasiyana dzeSPD zvinotsanangurwa muna 1.3. Ipo ichi chiri chiyero chekuita uye humwe hunyanzvi hunodiwa nemaSPD, mwero wekukundikana nedudziro yavo zvasiirwa mushandisi. Sarudzo uye misimboti yekushandisa yakafukidzwa muIEC 61643-22.

Kana iyo SPD ichizivikanwa sechinhu chimwe chete chinhu, inofanirwa kusangana nezvinodiwa zveyero yakakodzera pamwe neayo ari mune ino standard.