Ngaba uMkhuseli Wokugquma Uya Kusebenza Ngaphandle Komhlaba?

Ndakha ndabukela i-server fry ye-$3,000 eofisini yam kuba "i-surge strip" yayingenamhlaba wokwenene. Loo msi usandihlaba emehlweni.

Hayi, isithinteli sokunyuka kwamandla asikwazi ukukhusela izixhobo zakho ukuba isokhethi yodonga ayinayo intambo yokwenyani yomhlaba; isenokunika amandla, kodwa amandla okunyuka kwamandla ayingozi akanandawo ikhuselekileyo yokuya kuyo.

Qhubeka ufunda kwaye ndiza kukubonisa kanye isizathu sokuba iphini engekhoyo ingabi neenkcukacha ezincinci, indlela endivavanya ngayo iisokhethi kwimizuzwana engamashumi amathathu, kunye nento endiyenzayo xa isakhiwo esidala singandiniki mhlaba konke konke.

Isebenza njani i-Surge Protector?

Ndisakhumbula isandi esirhabaxa xa umbane wabetha uphahla lommelwane wethu. Ingcinga yam yokuqala yayikukuba, “Nceda uvumele i-MOV engaphakathi kwistrip yam idanise.”

Isithinteli sokushushuluza sithutha i-voltage eyongezelelweyo iye kwi-ground wire nge-Metal-Oxide Varistor; ngaphandle kwaloo ndlela yokuphuma, amandla ahlala kwisekethe yakho aze atshise eyona chip ibuthathaka.

Inxalenye encinci ethatha imbumbulu

Ngaphakathi kwistrip nganye uza kufumana iMOV enye okanye ezingaphezulu. Zihlala phakathi kokuphila nomhlaba, ezingathathi cala kunye nomhlaba. Kwi-130 V ziyabamba, kodwa i-clamp isebenza kuphela ukuba umhlaba ulinde njengomsele ovulekileyo.

IiJoules zikuxelela ubungakanani bebhakethi

Ndikhetha imicu enobuncinci i-600 J kwibhentshi yam yelebhu kunye ne-2,000 J kwirakhi zeseva. Itheyibhile engezantsi ibonisa ukuba zingaphi ii-surges ezinokuthi ziginywe yi-MOV eqhelekileyo ngaphambi kokuba ijike ibe yi-charcoal briquette.

Kutheni ucingo oluluhlaza lubaluleke ngaphezu kwestikha

I-strip ingathwala i-UL 1449 ize ikuphoxe. Ndivule iibhari “eziphawulwe nge-CE” ezazingenaso isikhonkwane somhlaba kwiplagi. I-MOV yayifakwe kwi-pin yeplastiki yobuxoki. I-surge ifumana indlela elandelayo engcono—ngokusebenzisa intambo ye-Ethernet ukuya kwi-motherboard yelaptop yakho.

Uvavanyo lwam lwesokhethi lwemizuzu emibini

Ngaphambi kokuba ndifake nantoni na ebiza kakhulu, ndisebenzisa isixhobo sokuvavanya i-$3. Izibane ezintathu kufuneka zikhanye. Ukuba esiphakathi simnyama, ndifowunela ingcali yombane okanye ndisuse irakhi. Andizange ndilithembe ilizwi lomninindlu othi, “Mhlawumbi kulungile.”

Kwenzeka ntoni xa i-MOV isifa

IiMOV aziphili. Emva kokubetha okukhulu, i-voltage yazo ye-clamp iyanyuka. Ngenye imini ukunyuka kwe-surf kukhulu kuneMOV ediniweyo kwaye amandla angena kwi-power supply yakho. Nditshintsha ii-strips rhoqo emva kweminyaka emithathu kwilizwe le-lightning, rhoqo emva kweminyaka emihlanu kwenye indawo.

Ngaba Zonke Iinkonzo Zokukhusela Ukunyuka Zisekelwe Kwisiseko?

Ndifunde ngendlela enzima ukuba ilebheli ethi “i-surge” ebhokisini ayithethi ukuba i-bar ine-ground pin; ezinye zikhusela kuphela imigca yedatha kwaye zishiya indlela yamandla ingenanto.

Hayi, uninzi lwezixhobo zokukhusela utyando ezinobukhulu bokuhamba kunye nezinobunzima obuphindwe kabini azinawo unxibelelwano lomhlaba; zixhomekeke ekubambeni okungathathi cala kwaye zinika ukhuseleko oluncinci kuphela.

Icebo lokuthengisa elandikhohlisayo

Kunyaka ophelileyo ndithenge ibha emhlophe eqaqambileyo ukuze ndithathe iifoto. Iplagi yayineephini ezimbini kuphela. Umbhalo omncinci wawusithi “ukhuseleko lokuhamba phakathi kwemigca.” Oko kunceda ekudumbeni okuncinci, kodwa umbane usaza kutyhala i-6 kV kwi-chassis.

Itafile yokubamba enezikhonkwane ezimbini

Kutheni ndisasebenzisa iibhari ezimbini

Ndiyazisebenzisa, kodwa kuphela kwizibane kunye neetshaja zefowuni. Ndizibiza ngokuba “AKUKHO MHLABA—AKUKHO ZIXHOBO ZIXABISO” ukuze abafundi bam abaqeqeshwayo bangaze bafake i-oscilloscope kuzo.

Indawo engwevu: Iivenkile zeGFCI

Ezinye iilabhoratri ezindala zineendawo zokubeka i-GFCI ezingenayo indawo yokubeka umhlaba. I-GFCI iya kusindisa ubomi bakho, kodwa ayiniki ndawo yokuphuma kwamanzi. Ndongeza imodyuli ye-MOV eyahlukileyo ekwi-intanethi exhunywe kumhlaba wombhobho wamanzi xa ndidibana nale seti.

Iingozi kunye neenkxalabo zoKhuseleko zokusebenzisa ii-Surge Protectors Ungrounded

Ndive ivumba leplastiki etshayo ngentsimbi yesi-2 kusasa ehotele; umcu wawungenamhlaba kwaye ukuqhuma kwadlula ngendlela emfutshane ngentambo ye-USB-C, ndadibanisa ilaptop yam ndaya edesikeni.

Ngaphandle komhlaba, amandla okushukuma anokungena ngaphakathi kwistrip, atshise iplastiki, okanye ahambe ngeentambo zenethiwekhi aze atshabalalise zonke izixhobo ezixhunyiweyo.

Umlilo uqala ngaphakathi kweplastiki

IiMOV ziyatshisa. Umcu ongaphantsi komhlaba ulahla ubushushu kunye nee-elektroni. Umcu ongaphantsi komhlaba ubamba amandla. Ndibone iqamza le-faceplate lize lithontsize njengetshizi kwi-griddle.

Indlela efihliweyo nge-Ethernet

Ndilinganise i-1,800 V phakathi kweelaptops ezimbini ezazine-strip engagutyungelwanga. I-surge yadlula kwintambo ye-CAT6 yaza yavuthuza zombini ii-NIC. Ibhili yokulungisa yayingaphezulu konyaka we-surge bars.

Ingozi yomothuko ebantwini

Xa i-surge ingenamhlaba, i-metal case yePC yakho inokunyuka iye kwisiqingatha se-line voltage kwi-microseconds. Oko kwanele ukuba kukuthuse ukuba uchukumisa i-case kunye ne-real ground ngaxeshanye.

I-matrix yam yomngcipheko kubathengi

Indlela yokujonga nokuqinisekisa ukuba isiseko se-Surge Protector sisemgangathweni ofanelekileyo

Ndiphethe isixhobo sokuvavanya esinezibane ezintathu kwisikhwama sam selaptop; sindisindise kwiibhodi eziqhotsiweyo kumazwe amahlanu nakwiiofisi ezininzi zokuqeshisa.

Faka isixhobo esilula sokuvavanya i-outlet kwisokethi; zonke izibane ezintathu mazihambelane netshathi ekwisixhobo sokuvavanya, okanye umhlaba uvulekile kwaye isikhuseli sakho sokushushuluza yidada elihleliyo.

Ukujonga kwam okubonakalayo kwemizuzwana emihlanu

Ndikhangela umngxuma ongqukuva. Ukuba awukho, ndiyayeka. Ukuba ukhona kodwa uplastiki, ndiyayeka. Umngxuma womgunyathi ubiza kancinci kunethusi kwaye awusebenzi.

Ukusebenzisa i-multimeter kumthengi okhethayo

Misela imitha kwi-VAC. I-Live ukuya kwi-neutral kufuneka ifundeke kwi-110–125 V. I-Live ukuya emhlabeni kufuneka ifane. I-Neutral ukuya emhlabeni kufuneka ibe yi-0–2 V. Nawaphi na amanye amanani athetha ukuba umhlaba ulahlekile okanye wabiwe ngendlela engafanelekanga.

Icebo lombhobho wamanzi

Kwenye indawo yokugcina impahla yoo-1950 ndabopha ucingo lobhedu kumbhobho wamanzi abandayo ndaza ndalufaka kwi-rack. Ndalinganisa i-0.3 Ω kwindawo yephaneli. Oko kulungele umsebenzi wokuxhuzula, kodwa ndisawubiza ngokuba yi-“aux ground.”

Bhala phantsi uvavanyo

Ndithatha ifoto yezibane zovavanyo ndize ndizincamathisele kwi-odolo yomsebenzi. Xa i-drive ye-$50,000 ifa, umshwalense ufuna ubungqina bokuba ndenze indima yam.

Indlela Yokumisa Isixhobo Sokukhusela Ukunyuka Ngokufanelekileyo

Ndakha ndaqhuba intonga yobhedu engamamitha asibhozo kumgangatho wesamente ngesixhobo sokubhola ihamile esiqeshiweyo; intlantsi xa ndibamba ucingo yandixelela ukuba isakhiwo besidada kwi-40 V kangangeminyaka.

Sebenzisa ucingo oluluhlaza lwe-12 AWG ukusuka kwi-ground lug ye-surge protector ukuya kwibhasi ephambili yomhlaba yesakhiwo okanye kwintonga evunyiweyo; gcina indlela yokubaleka imfutshane kuneenyawo ezilishumi kwaye usebenzise amalungu akrwelekileyo, angajijekanga.

Iresiphi yam yentsimi enyathelo ngenyathelo

1. Cima i-breaker.
2. Umhluzi we-insulation eyi-¾ intshi.
3. Gquma ilugi enomngxuma omnye ngesixhobo se-hydraulic.
4. Faka i-lug kwibhasi yomhlaba nge-star washer.
5. I-torque ukuya kwi-25 kwi-lb.
6. Bhala ilebheli ethi “Surge EQ GND” ukuze ingcali elandelayo yazi ukuba kutheni ikhona.

Xa ungakwazi ukuvula iphaneli

Ndisebenzisa ibhokisi yangaphandle ye-SPD efakelwa ecaleni kwephaneli ize izise i-ground stud ngaphandle. Isikhuseli se-surge ngaphakathi kwebhokisi sifakwe intambo ye-10 AWG. Ndongeza i-twist-lock inlet ukuze i-strip ikwazi ukutshintshiselwa kwimizuzwana engamashumi amathathu.

Itheyibhile yeendleko zeendlela zokumisa umhlaba

Ukuhlolwa kwam kokugqibela kwengqondo

Emva kokuba ndigqibile, ndifaka kwakhona isixhobo sokuvavanya. Emva koko ndivula i-heater ye-1,500 W ndize ndijonge i-voltage engathathi cala ukusuka emhlabeni ukuya emhlabeni. Ukuba inyuka ngaphezu kwe-2 V, ndiqinisa yonke ijoyinti ide iwe.

Ndikhangela iQela leeNgcali zoKhuseleko lokuKhukula — uMvelisi we-leikexing

Xa umthengi wam waseJamani wacela ii-SPD ezingama-5,000 ezenziwe ngokwezifiso ezingama-32 A ezineevenkile ze-IEC C19 kwiintsuku ezilishumi, i-leikexing yathunyelwa ngeentsuku ezisithoba; ndalala kakuhle ngobo busuku.

Ndisebenza ne-leikexing kuba banesityalo esingu-2,000 m² eWenzhou, banikezela ngenkonzo epheleleyo yokuhambisa izinto, kwaye basaphendula ii-imeyile zam kwisithuba seyure enye—nokuba ndicela uhlobo olungaqhelekanga lwe-690 V delta.

Kutheni ndiyekile ukuthenga izinto ezingaqhelekanga

Bendisoloko ndihlulahlula ii-odolo phakathi kweefektri ezintathu. Ukulibaziseka, iilebhile ezixutyiweyo, kunye nee-MOQs zandenza ndaphambana. I-leikexing indivumela ukuba ndidibanise iimodeli ezingama-20 A, 30 A, kunye ne-DC kwibhetshi enye yeziqwenga ezingama-500. Oko kunciphisa umthwalo wam nge-18%.

Amanqaku am okuhlolwa kwendawo

Ndindize eWenzhou ngoMatshi. Ndibone iiMOV ezine-UL-certified zipakishwe kwiikhabhathi ezilawulwa ngumswakama, ii-torque drivers ezizenzekelayo zibhala zonke izikrufu, kunye ne-burn-in rack ebetha iyunithi nganye ene-6 kV kathathu. Ndibhale "PASS" kwincwadi yam.

Iinkonzo abandinika zona ukuze ndikwazi ukuthengisa

- Uphononongo lwe-DFMA kwiiyure ezingama-48

- Iprinta ilogo yam nge-laser simahla phantsi kwee-pcs ezingama-500

- Iifayile zeRoHS kunye neREACH zifakwe ebhokisini

- I-sea-air combo xa ndifika emva kwexesha

Iphepha leenkcukacha ezikhawulezileyo ndilithumela kuJeff Weaver

I-MOQ yi-100 pcs ngemodeli nganye, i-500 pcs iyonke. Ixesha lokuhlawula liziintsuku ezili-15, idiphozithi engama-30%, i-70% ngokuchasene nekopi ye-BL. Bayamkela i-T/T okanye i-Alibaba Trade Assurance.

Isiphelo

Umhlaba awunyanzelekanga; liqabane elingathethiyo elithatha imbumbulu. Vavanya yonke isokhethi, sebenzisa ucingo lokwenyani, kwaye ukhethe umzi-mveliso othumela ngexesha—ukunyuka kwakho okulandelayo akuyi kulinda.