Zvigadzirwa

Kuedzwa kweGround Module Resistance: Nzira dzeMunda dzekusimbisa Zvakavimbiswa neMutengesi Wako

Inguva dza9am pazuva rekuiswa kwemagetsi. Mamodule epasi ari mugomba, grid yakabatana, uye mupi wezano akamira pamusoro pefudzi rako nepepa rekugamuchira rakavhurika kune mutsetse mumwe chete: kupikiswa kwenyika kwakayerwa. Datasheet yakahwina tender inoti mamodule anopa kupikiswa kwakaderera, kwakagadzikana kwemwaka. Chishandiso chiri mumaoko ako chava kuda kusarudza kana icho chaive chirevo kana kuti slogan. Mushure memakore gumi nemaviri uri kudivi remupi wenguva ino, ndinogona kukuudza kuti bvunzo haishande zvakanaka nekuda kwezvikonzero zvinofungidzirwa - nzvimbo isina kunaka yespike, kuverenga kwakatorwa mufungidziro dzemwaka isiriyo, kana nzira yakasarudzwa kuti ive nyore panzvimbo pekushanda - uye hazvimboiti nekuti fizikisi yakashamisa chero ani zvake. Gwaro iri rinotungamira mainjiniya eQA nemapoka ekuiswa kwemagetsi kuburikidza nenzira dzemunda dzinonyatsosimbisa kupikiswa kwemodule yepasi, maitiro ekuisa maspikes ekuyedza, maitiro ekutonga kana kuverenga kwakavimbika, uye zvekukumbira kubva kumupi wako kuitira kuti nhamba yakavimbiswa nenhamba yakayerwa ive nhamba imwe chete. Mamodule edu anouya nema parameter aunoda kuti asimbiswe, uye ndichakuratidza kuti vanoisa kupi.

CHIVIMBISO — ZVINOTAURWA NE DATASHEET
  • "Kusasimba kwakaderera, kwakagadzikana mumwaka yese."
  • "Inoshanda muvhu rinotsungirira zvakanyanya."
  • "Hapana kuwedzera kwekuramba mushure mekumhanya kwemhepo."
  • "Hupenyu hurefu hwebasa, husina ngura."
UCHAPUPU — ZVINORATIDZWA NEKUEDZA KWEMUNDA
  • Kukombama kwemukana wezvingangoitika kune mitsipa iri padaro rakakodzera.
  • Kuverenga kwakatsanangurwa zvichienderana nemwaka nehunyoro panguva yekuedzwa.
  • Kuongororazve mushure mesimba remagetsi panzvimbo imwe chete nenzira imwe chete.
  • Chinyorwa chemuchina chinogona kuteverwa zvakanyanya chinoenderana nemamodules ari mumugero.

Sei Kuramba kweDatasheet Chipikirwa, Kwete Chiyero

Pepa rega rega redata remodule yepasi — redu rakabatanidzwa — rinotaura mashandiro ekudzivirira akayerwa pasi pemamiriro akatsanangurwa: kusimba kwevhu kwakataurwa, geometry yekuisa yakataurwa, nzira yekuyedza yakataurwa. Nhamba iyoyo ndeyechokwadi chete mukati memamiriro iwayo,nekutiKudzivirira kwevhu hakusi kwemodule chete; ihunhu hwemodule pamwe nevhu rayo pamwe nenzira yayakavigwa nayo. Tamisa module imwe chete kubva papuratifomu yekuyedza yefekitori kuenda kunzvimbo yako ine matombo, yakaoma uye nhamba yacho inofamba nayo. Ndakaona module imwe chete ichipfuura mumamiriro edu ekuyedza uye ndakaverenga huwandu hwehunhu ihwohwo pamucheto wakaoma wemutengi - chigadzirwa chimwe chete, nzvimbo imwe chete, ivhu rakasiyana, uye mukaha iwoyo ndiwo chaiwo ongororo yemunda iripo yekubata. Izvi hazvisi chikanganiso mupepa redata - ndizvo zvinoshandiswa nepepa redata. Basa remutengesi nderekutaura kuramba kwepamodule imwe neimwe uye hwaro hwayo kuitira kuti mainjiniya wako agone kutevedzera saiti yako; basa rechikwata chinopa basa nderekusimbisa mhedzisiro muvhu rako, nekuisa kwako, pazuva rekugamuchira kwako.

Ndinoudza vatengi kuti vatore nhamba yekudzivirira kwemutengesi sechinhu chinobatsira pakuverenga, kwete sechinhu chinobuda. Kana vatengi vedu vachigadzira nzvimbo, tinopa simba rekudzivirira pamodule imwe neimwe yechimiro chakasarudzwa — plum-blossom, column kana sikweya — pamwe chete nemamiriro evhu ari shure kwayo,nekutinhamba isina hwaro hwayo haigone kuverengerwa kune imwe saiti zvechokwadi. Kuongororwa kunovhara denderedzwa kunoitika mumunda, uye zvimwe zviri mugwaro iri ndezvekuita kuongororwa ikoko nenzira inokodzera muongorori wemabhuku, mupi wezano, uye kushanya kwechipiri gore rinotevera.

Pindura Nugget:Kuramba kwedatasheet chirevo chine miganhu, kwete chokwadi chinotakurika —nekutiKudzivirira ivhu kunogara muhurongwa hwemodule-ne-ivhu, nhamba yemutengesi inoshanda chete mukati memamiriro ayo ekuyedza akataurwa, ndosaka kuongororwa kwemunda panzvimbo yako, muvhu rako, kuri humbowo hwega hunokosha pakupihwa.

Kukundikana Kwemukana Wakaitwa Nemazvo: Makwikwi Ebvunzo Anoendepi Chaizvo?

Nzira yekudonha kwesimba inoramba iri iyo nzira yekuyera resistance yepasi, uye inowanzokundikana kubva pa geometry pane kubva kumidziyo. Pfungwa: isa test current pakati pe electrode iri pasi pe test ne remote current spike, wobva wafamba potential spike pamutsetse uri pakati pavo woverenga voltage profile. Chikamu chakati sandara cheprofile iyoyo - apo kuverenga kunomira kuchinja - ndiyo nzvimbo chaiyo ye resistance ye electrode, uye classic shortcut inoisa potential spike pa 61.8% yedaro kusvika ku current spike, ne readings pa 52% ne 72% sekusimbisa. Pandinodzidzisa vashandi vemutengi pane izvi, tinomhanya full profile kamwe chete tisati tavimba ne shortcut,Nekuti kusimbiswa kwenzvimbo yakati sandara ndiko kunosiyanisa chiyero netsika.Maitiro ese uye fungidziro dzawo ndizvo zviri pasi pegwara rekuyera kwepasi reIEEE rakavakirwa paririIEEE Std 80, uye muenzaniso wevhu riri pasi unobva muongororo yeWenner-style resistivity paASTM G57.

Nzira yekuisa nzvimbo ndeyekuti bvunzo dzemunda dzinokanganisa zvinyararire. Kana spike yemagetsi iri pedyo zvakanyanya, nzvimbo dzekudzivirira magetsi nespike dzichipindirana, voltage profile haimbofi yakapfava, uye kuverenga kwe62% kunodzoka kwakaderera - bvunzo inodarika module isina ivhu. Ndinoudza makambani ari kutungamira mutemo wekushandisa mainjiniya edu: daro respike yemagetsi rinofanira kunge riri kanenge kashanu pane saizi yakakura yekuisa magetsi, uye zvakanyanya munzvimbo ine resistivity yakakura,nekutiIvhu rakaoma, rinodzivirira, iro rakaita kuti zvikwanisike kutenga mamodules pakutanga, rinotambanudzawo nzvimbo dzese dzekudzivirira mukuyedza. Zadza spikes uye hauzovimbise chinhu.

Module yevhu recarbon iri pasi pekuyedzwa kwekuyedzwa kwekuramba kwemukana panguva yekuiswa kwekombuta

Module yekabhoni yakagayiwa yemhando ye column yakasimbiswa nekuyedzwa kwekukwanisa kudonha panguva yekupihwa - terminal stud inobatanidza kune chishandiso chekuyedza kuburikidza ne grid lead.

Nzira nhatu dzeMunda, Pepa Rimwe Rekugamuchira: Ndeupi Muedzo Unokodzera Nzvimbo Yako?

Kudonha kwemukana ndiko kutaurwa nezvako, asi hakusi kuwanikwa nguva dzose — nzvimbo dziripo, macompounds akamanikana uye magrid akabatana zvinomanikidza dzimwe nzira. Kuenzanisa kwechokwadi kuri pazasi ndiko kwandinotumira kumapoka eQA anobvunza kuti mupi wezano wavo achagamuchira nzira ipi. Tinochengeta mapfupi ese matatu enzira dziri mufaira, uye ndinoagovana nemupi wezano wemutengi tisati tatanga vhiki yekupa basa saka hapana anokakavadzana nezvekushanda kwenzira iyi kunze kwemugero wakavhurika. Chikamu chinonyanya kukosha ndechekupedzisira: kuti nzira yega yega inoratidza chii chaizvo.

Maitiro Mashandiro Azvo Zvinodiwa paSaiti Dambudziko Rakajairika Zvarinoratidza
Kudonha kwemukana (mapoinzi matatu) Kukwira kwazvino kuri kure D, kukwirira kunogona kufamba pamutsetse; mutemo we62% Mutsetse wakavhurika wekuona maleads; grid yakabviswa paelectrode iri kuyedzwa Nzvimbo dzakamanikana dzemipendero dzakanyanya kuoma; nzvimbo dzinopesana dzinoita kuti kuverenga kwacho kuve kwakaderera. Kuramba kwese kwepasi kweelectrode — chiyero chekugamuchira
Nzira yekusarudza Kudonha kwezvinogona kuitika ne clamp inoparadzanisa electrode iri kuyedzwa pagridi yakabatana Kuwana mukana wekubata tambo ye electrode yega yega; mitemo yekupatsanurana yakafanana inoshanda Nzvimbo yekubikira haina kunaka; nzira dzakafanana dzinobuda uye dzinokanganisa kuverenga Mupiro we electrode imwe chete mukati megrid ine simba
Bata-pa (isina chigadziko) Clamp inokonzera voltage yekuyedza uye inoverenga kuramba kwe loop pasina spikes Chitenderedzo chakazara chinopinda nepagrid chinofanira kunge chiripo; maerekitirodhi akaparadzana haagone kuverengwa Inoshandiswa pa electrode yakaparadzana, paisina denderedzwa uye isina chinhu chinoshanda Kuvimbika kweLoop pahurongwa hwakabatana — chishandiso chekuongorora, kwete bvunzo yekugamuchira module imwe chete
Ongororo yekudzivirira ivhu (Wenner) Makona mana akaenzana anoyera kusimba kwevhu paASTM G57 Ivhu risina kukanganiswa risati raiswa Ongororo yakatorwa kubva kumunda uri pedyo kana mwaka wakasiyana Zvinodiwa pakugadzira - kuramba kunofanira kukundwa nemamodules

Nyevero mbiri kubva kurutivi rwedu rwefenzi. Chekutanga, mita yekusimbisa ndiyo inoshandiswa zvisina kunaka mukugadzira ivhu: yakanaka kwazvo pakusimbisa kusimba kwe loop pane system yakasungirirwa uye haigone kuyedza module yega, asi tinoona mishumo yekumisikidza gore rega rega kwainongedzwa paelectrode yakaparadzana uye yakaburitsa nhamba ine chivimbo, isina zvazvinoreva. Chechipiri, chero nzira yaunoshandisa, nyora geometry - daro respike, mamiriro evhu, mamiriro ekunze - padyo nekuverenga.Nekutikukosha kwekudzivirira pasina geometry yayo yekuyedza hakugone kudzokororwa, pass isina kunyorwa ipass yausingakwanise kudzivirira kana mutengi akaedzazve pamakore ekutanga.

Pindura Nugget:Sarudzo yenzira ndiyo inosarudza kukosha kwechitupa chako —nekutibvunzo yekudzikira kwesimba (kana kusarudza) inoyera electrode pachayo, kuongorora kwe clamp-on uye data rekuongorora rakakweretwa rinogona kutsigira asi harimbotsivi chiyero chekugamuchira.

Kuverenga Nhamba: Mhedzisiro Yebvunzo Ichavimbika Rini?

Kuverenga kwakavimbika kune zvinhu zvina, uye ndinodzidzisa timu dzeQA dzevatengi vedu kuti dziongorore zvakatevedzana. Geometry: nzvimbo ye spike space yakasangana nemitemo yechokwadi iri pamusoro. Mwaka: kuverenga kwakatsanangurwa zvichienderana nehunyoro hwevhu panguva yekuedzwa — module yakaedzwa munguva yemvura inofanira kuratidza muganho unopesana nechinangwa,nekutimwaka wekusanaya kwemvura uchadzosa zvimwe zvacho kunze kwekunge dhizaini yemodule inochengeta hunyoro iri kuita basa rayo. Kugadzikana: dzokorora kuyerwa mushure mekukanganisa nekugadzirisa zvakare spike inogona kuitika; chimiro chakagadzikana chinoreva kuti nzvimbo yakati sandara ndeyechokwadi. Uye magwaro: modhi yechishandiso, zuva rekugadzirisa, geometry uye mamiriro ekunze akanyorwa nehuwandu. Kuverengwa kwezvose zvina humbowo; kuverenga kusina chero imwe nhamba. Mumapurojekiti edu ekutumira kunze kwenyika ndinokumbira timu iri kutumira kuti inditumire bepa rine zvinyorwa, uye tinoriisa padivi penzvimbo yekugadzira iri kudivi redu.

Kune mamodule epasi pegrafiti, ongororo yekusimbisa ine imwe nzira yakanaka yekushandiswa - uye ndinoiratidza kune timu yega yega yeQA yatinoshanda nayo. Kufambiswa kwemodule hakuenderane nemwaka nekuda kwekuvakwa - graphite inoita sechinhu chakasimba - uye maitiro ayo ekunyudzwa kwemvura anochengetedza ivhu zvakasimba, saka kuyerera kwemvura kusvika kuoma kunotevera kuverenga kwetsvimbo isina chinhu ndiko chaizvo kunodzivira chigadzirwa. Kana kuverenga kwako kwemwaka wemvura nemwaka wemvura papoindi yemodule zvikadzoka zvakafanana, ndiko kushanda kwedhizaini, kwete kukundikana kwemudziyo. Vatengi vedu munzvimbo dzakaoma vanondiudza kuti kuyedzwa kwemwaka wechipiri ndiko uko chigadzirwa chinowana kurongeka kwacho, uye ndinotenda kuti vanozviita - tinoona kurongeka kwacho.

Module yepasi ine sikweya yakaiswa mugomba risina kudzika ichimirira kuyerwa kwekudzivirira kwevhu

Module yechimiro chesikweya yakagadzirirwa kuyedzwa: kuiswa kwegomba risina kudzika senge iri kunosimbiswa negeometry yakafanana yekudonha kwesimba, nehukuru hwaD hwakafanana nehukuru hwearray.

Kusimbiswa kweMutengesi: Chii Chaunofanira Kuda MaModules Asati Abuda Mufekitori?

Kuyedza mumunda kunobata matambudziko kunonoka. Chishandiso chakasimba ndechekuongorora vatengesi vasati vatumira, uye heino runyorwa rwezvido zvishanu zvandinokurudzira kune mainjiniya eQA - zvakare, nemaune, runyorwa irworwo mhinduro yedu yekutumira kunze:

  1. Kuramba kwega-module nehwaro hwayo hwekuyedza— kukosha, kusimba kweivhu riri shure kwaro, chimiro chekuisa uye nzira yacho, zvataurwa pamwe chete kana kuti kwete zvachose.
  2. Zvinyorwa zvekugadzirwa zvinoteverwa nenhamba— mamodule edu anouya kubva kumutsetse wezvimedu gumi pamwedzi pasi peISO 9001 discipline pamwe nekuongorora (IQC) uye maitiro; chitupa chinofanira kubatana nechikamu chako, kwete nekatalogu.
  3. Maitiro ekunyora anokonzerwa nekusagadzikana— hunhu hwedu hwekugadzira hunoratidza kuti hapana kuwedzera kwekudzivirira, hapana kuomarara uye hapana kutyoka kwakapwanyika mushure mekuvhunduka kukuru kwemagetsi; kumbira chero mutengesi kuti aise chikumbiro chakafanana mumagwaro echibvumirano.
  4. Kuzivisa zvinhu— muviri wegirafiti isiri yesimbi, inodzivirira ngura, haina chepfu, haina kusvibisa; kumapurojekiti ane muongorori wezvakatipoteredza, chirevo ichi chinoenderana nepfungwa yekuti zvinhu zviri pasi pevhu zvinosanganiswa sei.IEC 62561-2.
  5. Chiratidzo chekugamuchira chakabvumiranwa usati watumirwa— kukosha kwakanangana, nzira yekuyedza uye hunyanzvi hwekuita zvinhu hwakanyorwa muhurongwa, saka zuva rekukoka harina kutaurirana pamusoro pezvinoreva "kupasa".

Pfungwa yechishanu ndiyo inoparadzanisa kusimbiswa kwechinhu kubva kumutambo wemitambo. Kana mutemo wekugamuchira ukabvumiranwa panguva yekuraira, kupiwa kwechinhu kunova chiyero; kana zvikasadaro, kupiwa kwechinhu kunova nharo.NekutiTichienzanisa nepfungwa yekuramba kwega kwega kwega uye geometry yekuedza, vatengi vedu vanosvika pabvunzo yekugamuchirwa nekuverenga kwatoitwa — chishandiso chinongofanira kusimbisa. Magadzirirwo anotevera.IEC 62305-1kudzivirira mheni kunofanira kutakura nzira imwecheteyo muzvinyorwa zveLPS zvekugumisa ivhu.

Kubva Mushumo Webvunzo Kusvika Pakugamuchirwa: Unovhara Sei Chidimbu?

Danho rekupedzisira nderekutonga, uye rinodzivirira munhu wese — ndakariona richiponesa chikumbiro uye ndakaona kusavapo kwaro kuchinyura. Isa zviyero zvakayerwa nejometri yazvo nemamiriro azvo, zvienzanise nechiyero chekugamuchirwa chakabvumiranwa, uye chengeta seti yacho neGPS tags papoindi imwe neimwe kuitira kuti bvunzo yekutanga yekupemberera iongorore mapoinzi akafanana nenzira imwecheteyo. Ndinochengeta tsika iyi yekuchengetedza mumagwaro edu ekutumira, uye ndinokurudzira kune ese QA lead atinotsigira. Kana kuverenga kukakundikana, kutevedzana kwekuongorora ndekwekuti: simbisa spike geometry kutanga, simbisa chishandiso nemalead kechipiri, bvisa uye ongorora machira ekubata echitatu — nenzira iyoyo,nekutiZvikanganiso zvekugadzirisa bvunzo zvakawanda kupfuura kukundikana kwechigadzirwa mumishumo yemumunda yandakaongorora nepamuganho wakakura. Uye kana module yemutengesi ikatadza zvechokwadi kuramba kwayo kwakatarwa pamodule imwe neimwe pasi penzira yakabvumiranwa, rekodhi inoteverwa ndiyo inoita kuti chikumbiro chigadziriswe mumazuva mashoma pane gakava rinogara kwenguva refu kupfuura purojekiti.

Ruzivo rwechikamu chepasi cheGraphite chekubatanidza mudziyo panguva yekusimbisa kugadzirwa kwevhu

Ruzivo rwemuchina wekubatanidza girafu pane yedu module: nzvimbo yekubatanidza michina yakachena inokosha kupfuura zvinotarisirwa nemapoka mazhinji - ma "test leads" akaora kana asina kusimba ndiwo manyuko epamusoro ekuverenga zvinhu zvisina kujairika.

Zvigadzirwa zviri shure kwegwaro iri: redumodule yepasimhuri (AF-G0701) muchimiro che plum-blossom, column uye sikweya,module yevhu yekoramu yegirafitiyekuisa zvinhu zvisina kuomeswa muhomwe, uyemodule yevhu recarbon ine resistance yakaderera(AF-G0705) — zvese zviri pasi pechikamu chemodule yepasi, kubva pakutenga zvinhu gumi zvine mabhokisi emapuranga. Nezve maitiro ezvinyorwa zviri shure kwenhamba dzebvunzo, chinyorwa chedu chinoshanda pamusoro pema electrode e graphite nebasa rawo mukusimbisainovhara chikonzero nei muviri wegirafiti uchibata conductivity yawo uko mhinduro dzesimbi nedzakazara dzinofamba.

Mibvunzo Inowanzo bvunzwa: Mibvunzo Yekuyedza Kuramba Kushanda Kwemodule Yepasi Kubva Kumapoka Ari Kutuma Vashandi

Ndeipi nzvimbo chaiyo yekuisa spike pakuedza ground module?

Isa current spike padaro D yekanenge kashanu pane saizi yakakura ye installed module array — yakawanda muvhu rine resistivity yakakwira — uye potential spike pa61.8% yeD, zvichisimbisa nekuverenga pa52% ne72%. Kana kuverenga katatu kusina kugara pachikamu chakati sandara che voltage profile, wedzera D wodzokorora; tight space inogadzira pasi rakaderera, risingashande.

Ndingashandisa clamp-on tester here kuti ndisimbise ground module imwe chete?

Kwete. Muchina wekuyedza clamp-on (usingabatike) unoyera kuramba kwe loop uye unoda loop yakazara kuburikidza ne bonded grid; pa electrode imwe chete isina loop yekuverenga. Shandisa mukana wekuwana mukana wekugamuchira, uye chengeta clamp yekuongorora kuvimbika kwe loop pamasisitimu akabatana.

Sei module yangu yakapasa bvunzo yemwaka wemvura asi ikakundikana mwedzi yakati wandei yakatevera?

Kazhinji nekuti kuverenga kwemwaka wemvura kwakanga kusina mukana wekudonha kwemvura nemwaka. Maelectrode asina chinhu anokwira mukudzivirira kana ivhu raoma; dhizaini yemodule yekunwa hunyoro inodzivisa kutenderera kwakawanda, asi mamiriro emwaka wemvura achiripo. Tsanangura chero kupasa kwemwaka wemvura nemuganhu, uye edzazve zvinhu zvakakosha mumwaka wese.

Chii chinofanira kupihwa nemutengesi kuti ndigone kusimbisa chikumbiro chavo chekuramba?

Zvinhu zvishanu: kuramba kwemodule imwe neimwe nehwaro hwayo hwekuyedza (kudzivisa ivhu, geometry, nzira), zvinyorwa zvekugadzira zvinoteverwa, maitiro ekukurumidza-kwazvino mukunyora, kuzivisa zvinhu, uye chiyero chekugamuchira - kukosha kwechinangwa, nzira uye geometry yespike - zvinobvumiranwa zvisati zvatumirwa. Nezviri mumaoko, kutumirwa kusimbiswa, kwete kutaurirana.

Kuverenga kwangu kwakakwira kupfuura zvaitarisirwa — module yacho haina kunaka here?

Tarisai nenzira iyi: kugona kwenzvimbo yekuisa zvinhu panzvimbo imwe chete, mamiriro echishandiso nelead, uye kubatana kwemubhedha pasi pemodule. Mukuongorora kwedu mishumo yemumunda, zvikanganiso zvekuseta bvunzo zvinopfuura kukundikana kwechigadzirwa nepamuganho wakakura. Kana setup ikaongorora uye kuverenga kuchiri kupotsa kukosha kwakataurwa nemutengesi pamodule imwe neimwe pasi penzira yakabvumiranwa, rekodhi inoteverwa nelot ndiyo inogadzirisa chikumbiro nekukurumidza.

Mamodule epasi akaiswa anofanira kuongororwazve kangani?

Nyora kukosha kwekugamuchirwa kwayo nemamiriro ayo, wozoedzazve zvinhu zvakakosha pagore rekutanga uye padanho rekugadzirisa nzvimbo yacho mushure mezvo. Mamodules anogadzikana nemwaka anofanira kutevedzera kuverenga kwawo zvakanyanya; maitiro anochinja-chinja pakuongororwazve inyevero yekutanga inofanirwa kuongororwa isati yakundikana.

Titumirei nzira yenyu yekudzivirira chinangwa chenyu, ruzivo rwevhu rwenzvimbo uye nzira yekugamuchira - tichatora mamodules tichienzanisa nekuramba kwakataurwa pamodule imwe neimwe ine zvinyorwa zvinogona kuteverwa, saka bvunzo yenyu yekuraira inosimbisa odha yacho pachinzvimbo chekuipikisa.

Mamodule eQuote ane Magadzirirwo Anosimbiswa

Jane Yang, Maneja weKutengesa kuXinchang Shibang New Material Co., Ltd. — Makore gumi nemaviri ari mukuchengetedza mheni uye kutumira zvinhu pasi, achitsigira QA uye achipa mabasa emapoka muzvirongwa zvezvivakwa muAsia, Middle East, Africa neSouth America.

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Nguva yekutumira: Gumiguru-12-2026