Ukuvikelwa kombani kuyisici esibalulekile sezinhlangano ezisebenza imishini kagesi ebucayi, ikakhulukazi embonini yokusakaza. Okuhlobene nomugqa wokuqala wokuvikela ngokumelene nombani kanye nomoya we-voltage uhlelo oluyisisekelo. Ngaphandle kokuthi kuklanywe futhi kufakwe kahle, noma yikuphi ukuvikelwa kokuhlaselwa ngeke kusebenze.
Enye yezindawo zethu ze-TV Transmitter itholakala ngaphezulu kwentaba enezinyawo ezingama-900 ubudala futhi yaziwa ngokuthola ukugcwala kombani. Ngisanda kunikezwa ukuphatha zonke izingosi zethu zokudlulisela; Ngakho-ke, inkinga yadluliselwa kimi.
Isiteleka sombani ngonyaka ka-2015 sabangela ukuphuma kwamandla, futhi i-generator ayiyekanga ukugijima izinsuku ezimbili zilandelana. Lapho ngihlola, ngithole ukuthi i-Utility Transformer Fuse yayishaye. Ngiphinde ngabona ukuthi i-attractory eshintshiwe esanda kufakwa okuzenzakalelayo (ATS) LCD isibonisi ayinalutho. Ikhamera yezokuphepha yonakalisiwe, futhi uhlelo lwevidiyo kusuka kusixhumanisi se-microwave alunalutho.
Ukwenza izinto zibe zimbi kakhulu, lapho amandla embuyiselo ebuyiselwa, ama-ATS aqhuma. Ukuze sibuyele kabusha, ngaphoqeleka ukuba ngishintshe ama-Ats ngesandla. Ukulahleka okulinganiselwe kungaphezu kwama- $ 5,000.
Ngokumangalisayo, uMvikeli we-Lea-Phase-280V Surge Provil akhombisa ukuthi azikho izimpawu zokusebenza nhlobo. Lokhu kuvuse intshisekelo yami ngoba kufanele kuvikele wonke amadivaysi esizeni kulezo zigameko. Ngenhlanhla, umdluliseli muhle.
Ayikho imibhalo yokufakwa kohlelo oluyisisekelo, ngakho-ke angikwazi ukuqonda uhlelo noma induku enesisekelo. Njengoba kungabonakala kusuka kuMdwebo 1, inhlabathi esizeni inciphile kakhulu, futhi wonke umhlabathi ongezansi wenziwe nge-Novaculite Rock, njenge-insulator esekwe ku-silica. Kulesi simo, izinduku ezijwayelekile zomhlaba ngeke zisebenze, ngidinga ukuthola ukuthi zifake induku yendawo yamakhemikhali nokuthi isekhona empilweni yayo ewusizo.
Kunezinsiza eziningi mayelana nokulinganiswa kokumelana nomhlabathi kwi-Intanethi. Ukwenza lezi zilinganiso, ngikhethe i-Fluke 1625 imitha yokumelana nomhlabathi, njengoba kukhonjisiwe kuMfanekiso 2. Kuyinto divayisi esebenza ngemisebenzi engasebenzisa indondo yomhlabathi kuphela noma ixhumeke induku yomhlaba ohlelweni lwesilinganiso sokulinganisa. Ngaphezu kwalokhu, kunamanothi wohlelo lokusebenza, abantu abangalandela kalula ukuthola imiphumela efanele. Le yimitha ebizayo, ngakho-ke saqasha umuntu ukwenza umsebenzi.
Onjiniyela be-Broadcast bajwayele ukukala ukumelana kwabaphikisayo, futhi kanye kuphela, sizothola inani langempela. Ukumelana nomhlabathi kuhlukile. Esikufunayo ukumelana nenhlabathi ezungezile kuzokunikeza lapho ukudlula kwamanje.
Ngisebenzise indlela "yokulahla okungenzeka" lapho kulinganisa ukumelana, inkolelo-mbono yayo echazwe kuMfanekiso 1 nangomfanekiso 2. 3 kuya ku-5.
Ku-Figure 3, kunenduku yomhlabathi e yokujula okunikezwe nenqwaba ye-C ngebanga elithile kusuka ku-Ground Rod E. The Voltage Source vs ixhumeke phakathi kwalezi ezimbili, ezizokhiqiza i- induku enkulu. Usebenzisa i-volmeter, singalinganisa i-voltage vm phakathi kwalokhu okubili. Lapho siseduze nathi e, engeza i-Voltage VM ephansi. I-VM ingu-zero eRap Rod E. ngakolunye uhlangothi, lapho silinganisa i-voltage eduze kwenqwaba C, i-VM iba phezulu. E-Equity C, i-VM ilingana nomthombo wamandla kagesi vs. Ukulandela umthetho we-OHM, singasebenzisa i-voltage vm ne-C yamanje okubangelwa yi-vs ukuthola ukumelana komhlaba kongcolile ozungezile.
Ukucabanga ukuthi ngenxa yengxoxo, ibanga phakathi kweRile R lingamamitha ayi-100, futhi i-voltage ilinganiswa njalo ngamamitha ayi-10 ukusuka ku-inqwaba C. Uma uhlela imiphumela, ijika lokumelana kufanele libukeke njengesibalo 4.
Ingxenye evuthayo kunenani lokumelana nomhlabathi, okuyinto ethonywe yithonya lenduku yenhlabathi. Ngale kwalokho kuyingxenye yomhlaba omkhulu, kanye nemikhuba yokuhlinzwa ngeke isangena. Uma kucatshangelwa ukuthi ukubulawa kuya ngokuya kuphakama ngalesi sikhathi, lokhu kuyaqondakala.
Uma induku yomhlabathi ingamamitha ayi-8 ubude, ibanga le-pile C livame ukusetha amamitha ayi-100, futhi ingxenye ephansi yejika lingamamitha angama-62. Imininingwane eminingi yezobuchwepheshe ayikwazi ukumbozwa lapha, kepha ingatholakala kwinothi lesicelo esifanayo kusuka ku-Fluke Corp.
Ukusetha kusetshenziswa i-Fluke 1625 kuboniswa kuMdwebo 5. Imitha engu-1625 yokumelana nesethuli ine-generator yayo yeVoltage Generator, engafunda inani lokumelana ngqo nemitha; Asikho isidingo ukubala inani le-ohm.
Ukufunda kuyingxenye elula, futhi ingxenye enzima ishayela izibalo ze-voltage. Ukuze uthole ukufundwa okunembile, induku yenkundla inqanyuliwe ohlelweni oluyisisekelo. Ngenxa yezizathu zokuphepha, siyaqiniseka ukuthi abukho amathuba okushisa noma ukungasebenzi kahle ngesikhathi sokuqedwa, ngoba uhlelo lonke luntanta phansi phakathi kwenqubo yokulinganisa.
Umdwebo 6: I-Lyncole System XIT Ground Rod. Intambo ekhonjisiwe ekhonjisiwe akusona isixhumi esiyinhloko sohlelo lwensimu. Ikakhulukazi kuxhumeke ngaphansi komhlaba.
Uma ngibheka, ngithole induku yenhlabathi (Umdwebo 6), okuyinto eyinduku yamakhemikhali ekhiqizwa yi-Lyncole Systems. Induku ye-Ground iqukethe ububanzi obungu-8-intshi, umgodi ovutha ngonyawo ogcwele ngengxube yobumba ekhethekile ebizwa ngokuthi yi-lyncinite. Maphakathi nalomgodi yi-tube yethusi eyize ngobude obufanayo nobubanzi obungu-2 inches. I-hybrid lynnite inikeza ukumelana okuphansi kakhulu kwenduku yenhlabathi. Omunye ungitshele ukuthi enqubweni yokufaka le nduku, kwakusetshenziselwa iziqhumane ukwenza izimbobo.
Lapho nje ama-voltage kanye namaphara wamanje afakwe emhlabathini, ucingo luxhumeke kwinqwaba ngayinye kumitha nathi lapho kufundwa khona inani lokumelana.
Ngithole inani lokumelana nomhlabathi lama-7 ohms, okuyinani elihle. Ikhodi kagesi kazwelonke idinga ukuthi i-electrode yomhlaba ibe ngu-25 ohms noma ngaphansi. Ngenxa yemvelo ebucayi yemishini, imboni yokuxhumana ngocingo imvamisa idinga ama-ohms ayi-5 noma ngaphansi. Ezinye izitshalo ezinkulu zezimboni zidinga ukumelana komhlabathi ophansi.
Njengomkhuba, ngihlala ngifuna izeluleko nokuqonda kubantu abanolwazi kakhulu kulolu hlobo lomsebenzi. Ngibuze ukusekelwa kwezobuchwepheshe kwezobuchwepheshe mayelana nokungafani kwezinye izifundo engizitholile. Basho ukuthi kwesinye isikhathi izigxobo kungenzeka zingaxhumani kahle nomhlabathi (mhlawumbe ngoba idwala lilukhuni).
Ngakolunye uhlangothi, amasimu womhlaba we-lyncole, umenzi wezinduku ezihlabayo, wathi iningi lokufundwa liphansi kakhulu. Balindele ukufundwa okuphezulu. Kodwa-ke, lapho ngifunda izindatshana ezikhuluma ngezinduku zomhlaba, lo mehluko wenzeka. Isifundo esithathe izilinganiso minyaka yonke iminyaka engu-10 sathola ukuthi i-13- 40% yokufundwa kwazo yayihlukile kokunye ukufundwa. Baphinde basebenzise izinduku ezifanayo zomhlaba esizisebenzisile. Ngakho-ke, kubalulekile ukuqeda ukufundwa okuningi.
Ngibuze omunye usonkontileka kagesi ukuthi afake ukuxhumana okuqinile komhlabathi kusuka esakhiweni kuya endongeni ebusweni ukuvikela ukwebiwa kwethusi ngokuzayo. Baphinde bawenza elinye ukulinganiswa kokumelana nomhlabathi. Kodwa-ke, lina ezinsukwini ezimbalwa ngaphambi kokuba bathathe ukufundwa kanye nenani abalitholayo laliphansi ngisho naphansi kwama-7 ohms (ngithathe ukufundwa lapho sekomile kakhulu). Kule miphumela, ngikholwa ukuthi induku yenhlabathi isesesimweni esihle.
Umdwebo 7: Bheka ukuxhumana okuphambili kohlelo oluyisisekelo. Noma uhlelo oluyisisekelo luxhumeke kwinduku yenhlabathi, i-clamp ingasetshenziswa ukuhlola ukumelana nomhlabathi.
Ngithuthe i-480V ehlehlisa i-Suppressor iphuzu emugqeni ngemuva komnyango wesevisi, eduze kokushintsha okuphambili kokuxhuma. Kwakuvame ukuba ekhoneni lesakhiwo. Noma nini lapho kunokwehla kombani, le ndawo entsha ibeka i-Super Suppressor kwasekuqaleni. Okwesibili, ibanga phakathi kwalo nenduku yenkundla kufanele kube mfushane ngangokunokwenzeka. Ehlelweni langaphambilini, ama-ATS eza phambi kwayo yonke into futhi ahlala ehola. Izintambo zesigaba ezintathu ezixhumeke ku-Surge Suppressor kanye nokuxhumana kwalo komhlaba kwenziwa kufushane ukunciphisa ukubulawa kwabantu.
Ngaphindela futhi ukuzophenya umbuzo ongajwayelekile, kungani umcindezeli we-superprescer engasebenzi lapho ama-ATS eqhuma ngesikhathi sombani. Okwamanje, ngihlole ngokuphelele ukuxhumana komhlaba nokungathathi hlangothi kwawo wonke amaphaneli wesekethe wesifunda, ama-backup generator, kanye nama-transmitters.
Ngithole ukuthi ukuxhumana komhlaba kwephaneli yesekethe mali ephambili kulahlekile! Lokhu futhi lapho lapho i-Surge Suppesters futhi ama-ATS asusiwe (ngakho-ke nalokhu isizathu esenza ukuthi i-Sudge Suppressior ingasebenzi).
Yalahleka ngoba isela lethusi lisika ukuxhumana nephaneli ngesinye isikhathi ngaphambi kokuba ama-ATS afakiwe. Onjiniyela bangaphambilini balungisa zonke izintambo zomhlabathi, kepha abakwazanga ukubuyisa ukuxhumana komhlaba kwephaneli yesekeli yesekethe. Ucingo olusikiwe akulula ukubona ngoba lisemuva kwephaneli. Ngikulungiselele lokhu kuxhumana futhi ngakwenza kwaba iphephe ngokwengeziwe.
Kufakwe ama-480v ama-480v ama-ATS, futhi kwasetshenziswa ama-nautel Ferrite Toroidal cores ekufakweni kwesigaba ezintathu kwama-ATS okuvikelwa okungeziwe. Ngiyaqiniseka ukuthi i-Surge Suppress Counter nayo iyasebenza ukuze sazi lapho kwenzeka umcimbi wokwehla.
Lapho kufika isizini yesivunguvungu, konke kwahamba kahle kwathi ama-ATS ayesebenza kahle. Kodwa-ke, i-pole transformer fuse isaqhubeka nokushaya, kepha kulokhu ama-ASTS kanye nayo yonke eminye imishini esakhiweni ayisathinteki ekuhlaselweni.
Sicela inkampani yamandla ukuthi ihlole i-fuse eshaye. Ngatshelwa ukuthi isiza sisekupheleni kwensizakalo yomugqa wokuhambisa izigaba ezintathu, ngakho-ke kuthambekele kakhulu ezinkingeni zokuhlinzwa. Bahlanza izigxobo futhi bafaka eminye imishini emisha ngaphezulu kwabaguquli bePole (ngikholwa ukuthi hlobo oluthile lwe-supsepressor), elivimbele ngempela i-fuse ekuvuthayo. Angazi ukuthi benze ezinye izinto emugqeni wokuhambisa, kepha noma ngabe benzani, kuyasebenza.
Konke lokhu kwenzeka ngo-2015, futhi kusukela lapho, asikaze sihlangabezane nanoma yiziphi izinkinga ezihlobene nokutholwa kwamandla kagesi noma ukuduma kwezulu.
Ukuxazulula izinkinga zokuhlinzwa kwe-voltage kwesinye isikhathi akulula. Ukunakekelwa kumele kuthathwe futhi kuthathwe kahle ukuqinisekisa ukuthi zonke izinkinga zibhekwa kwi-wiring nokuxhuma. Ithiyori ngemuva kwezinhlelo nezinhlelo zombani kufanelekile ukutadisha. Kuyadingeka ukuqonda ngokugcwele izinkinga zesisekelo se-computer eyodwa, ama-gradients voltage, kanye nokutholakala komhlaba wonke kukhuphuka ngamaphutha ukuze kwenziwe izinqumo ezifanele ngesikhathi senqubo yokufaka.
UJohn Marcon, i-CBTE CONBE, muva nje usebenze njengonjiniyela omkhulu e-Victory Television Network (VTN) edwaleni elincane, e-Arkansas. Uneminyaka engama-27 yesipiliyoni eRadio and Televishini ukusakaza ama-tradio kanye neminye imishini, futhi futhi ungumfundisi owayengu-Professional Electronics. Ungunjiniyela oqinisekiswe yi-SBEET ONachevided ne-Bachelor's degree in electronics kanye nezokuxhumana.
Ngeminye imibiko enjalo, futhi uhlale usesikhathini nazo zonke izindaba zethu eziholela emakethe, izici kanye nokuhlaziywa, sicela ubhalisele iphephandaba lethu lapha.
Yize i-FCC ibhekele ukudideka kokuqala, i-Media Bureau isenesexwayiso esizonikezwa umnikazi welayisensi
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Isikhathi sePosi: Jul-14-2021
