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Ukukhetha Intambo yoLwandiso lwePvI-s ingaphezulu nje kobude okanye isitayile sesixhumi. Ukuze uzifanise ngokuchanekileyo neephaneli zelanga ezahlukeneyo, kufuneka ujonge ubungakanani bomqhubi, ukulinganiswa kwevolthi kunye nokwangoku, ukuhambelana kwesixhumi, uhlobo lobushushu, kunye nokuqina kokusingqongileyo ukuze inkqubo ikwazi ukuthwala umbane ngokukhuselekileyo nangokufanelekileyo. Eli nqaku lichaza iinkcukacha eziphambili ezimisela ukuba intambo iya kusebenza na nephaneli ethile, apho ukungafani kwenzeka rhoqo, kunye nendlela ezo mpazamo ezichaphazela ngayo ukuvela kwamandla, ukuthembeka, kunye nomngcipheko womlilo. Ekugqibeleni, uya kuba nesakhelo esisebenzayo sokukhetha iintambo zolwandiso ezifanela zombini iimfuno zombane kunye noyilo olubonakalayo lofakelo lwelanga.
Kutheni kubalulekile ukuhambelana kwekhebula le-PV Extension
Nokuba kufakelwe inkqubo yophahla lwendlu ye-5kW okanye ifama yelanga ye-50MW, kuqinisekisa iintambo zolwandiso ze-PV ezihambelanayo ibalulekile ekusebenzeni kwenkqubo kunye nokhuseleko lwendawo. Iiphaneli zelanga zivelisa umbane wamandla angqalileyo (DC), ekufuneka uhambe ngokufanelekileyo ukusuka kwi-module array ukuya kwi-inverter okanye kwi-charge controller. Ngenxa yokuba iinkqubo zeDC zichaphazeleka kakhulu kukuxhathisa kumgama omde wokuhambisa, iimpawu zomzimba nezombane zeziseko zombane azinakuthathwa njengento ecingelwayo emva koko. Ukuhambelana ngokufanelekileyo kuthintela imiqobo enzima ekuveliseni amandla kwaye kunciphisa umngcipheko omkhulu womlilo onxulunyaniswa ne-DC enamandla aphezulu.
Iinkcazo eziphambili zokucacisa kwangethuba
Ukuqonda amagama asetyenziswa kushishino linyathelo lokuqala lokufikelela ekuhlanganisweni kwenkqubo ngaphandle komthungo. Indawo enqamlezileyo ye-conductor, edla ngokulinganiswa nge-American Wire Gauge (AWG) okanye iimilimitha zesikwere (mm²), ilawula ngokungqongqo umbane ophezulu onokuthwalwa yintambo ngokukhuselekileyo. Ufakelo lwelanga oluqhelekileyo lwezindlu kunye nolwezorhwebo lusebenzisa kakhulu iintambo ze-4mm² (12 AWG) okanye i-6mm² (10 AWG), ezakhiwe kusetyenziswa ubhedu oluxineneyo, olufakwe kwi-tin ukuze ukumelana ne-oxidationUkongeza, ishishini lelanga lixhomekeke kakhulu iindlela zoqhagamshelwano ezisemgangathweniIzihlanganisi ze-MC4 ezixhaphakileyo zineempawu ezithile zokudibanisa zamadoda nabafazi ekufuneka zihlangane ngokugqibeleleyo ukuze zigcine isitywino esingangeni moya nesingenamanzi nxamnye nezinto ezingqongileyo.
Iingozi Eziqhelekileyo Zeentambo Ezingangqinelaniyo
Ukuhambisa izinto ezingahambelaniyo okanye ezingahambelaniyo nomgangatho kuzisa iingozi ezinkulu zokusebenza kunye nomlilo. Ukuba intambo ayilingani ngobukhulu bayo kwi-short-circuit current yephaneli yelanga (Isc), ukumelana nombane okubangelwayo kuvelisa ubushushu obugqithisileyo bendawo. Amaqondo obushushu kwiindawo zonxibelelwano ezingalunganga anokudlula ngokukhawuleza umlinganiselo wobushushu obuqhelekileyo be-90°C ukuya kwi-120°C kwijakethi yentambo, nto leyo enyusa kakhulu umngcipheko wokunyibilika, iimpazamo ze-arc, okanye imililo yombane etshabalalisayo. Ngaphezu koko, izihlanganisi ezingahambelaniyo ezivela kubavelisi abahlukeneyo zinokukhokelela kwizithuba ezincinci, ezivumela ukungena komswakama. Oku kubangela ukugqwala okukhawulezileyo kunye nokuhla kwevolthi edlula umda owamkelekileyo weshishini we-2% ukuya kwi-3%. Oku kungasebenzi kakuhle kuthetha ngokuthe ngqo ekulahlekelweni kwamandla okulinganiselweyo, okuqhubekayo kwiminyaka engama-25 yobomi be-solar array.
Iikhrayitheriya zobuchwepheshe zokuHlanganisa iiCables zePV Extension
Ukukhetha iingcingo ezifanelekileyo kufuna uvavanyo oluqinileyo noluqhutywa yidatha lweenkcukacha zombane zenkqubo. Iimodyuli zelanga zanamhlanje ezisebenzayo kakhulu zihlala zisebenza kwiivolthi eziphezulu ukuze ziphucule ukusebenza kakuhle kothumelo, nto leyo ebangela ukuba iintambo zilinganiswe ngokucacileyo kwi-1000V DC okanye 1500V Iindawo zeDC. Ukungaphumeleli ukulungelelanisa iinkcukacha zentambo yolwandiso kunyeumbane ophezulu wenkqubo kunye ne-peak amperage output ye-solar array zinokubeka emngciphekweni lonke iziseko zophuhliso kwaye zikhuphe iziqinisekiso zezixhobo ezibizayo.
Indlela yokuthelekisa iiConnectors, ubungakanani beConductor, kunye noVavanyo
Izinto eziphambili zobugcisa ekukhetheni intambo kukuhambelana kwesixhumi, i-conductor cross-section, kunye nokulinganiswa kokuqina kokusingqongileyo. Abafaki kufuneka baqinisekise ukuba iintambo zolwandiso zisebenzisa umgangatho ofanayo wesixhumi kunye nokunyamezelana njengeephaneli zelanga—ngesiqhelo iStäubli MC4 yokuqala okanye iinguqulelo eziqinisekisiweyo ezihambelanayo—ukuqinisekisa uqhagamshelo olukhuselekileyo, olungenasiphepho olulinganiswe yi-IP67 okanye i-IP68. Ubungakanani bomqhubi kufuneka bubalwe ngokusekelwe kumandla ochungechunge oluphezulu; umzekelo, intambo ye-10 AWG inokusingatha ngokukhuselekileyo ukuya kuthi ga kwi-30 amps kwi-conduit esemgangathweni, ngelixa intambo ye-12 AWG idla ngokukhawulelwa kwi-20 amps phantsi kweemeko ezifanayo zobushushu. Ukongeza, ijakethi yangaphandle kufuneka ibe ne-UV-resistant cross-linked polyethylene (XLPE) okanye i-cross-linked polyolefin (XLPO) ukuze imelane namashumi eminyaka okuvezwa kwelanga ngqo, ukuguquguquka okukhulu kobushushu, kunye nokuwohloka kwe-ozone ngaphandle kokuqhekeka.
Oko Kufuneka Kuqukwe YiTheyibhile Yokuthelekisa Intambo
Ukuze kube lula inkqubo yokuthenga nobunjineli, abaphathi beprojekthi kufuneka basebenzise imatrix esemgangathweni ukuvavanya izisombululo zocingo ezinokubakho ngokuchasene noyilo lwesiza. Itheyibhile yokuthelekisa epheleleyo kufuneka inike iinkcukacha ezipheleleyo. ubungakanani bomqhubi, amandla aphezulu ombane, kunye nemida ecetyiswayo yomgama ukuthintela ukulahleka kwamandla okugqithisileyo ngexesha leeyure zokuvelisa amandla aphezulu.
| Ubungakanani beCable | Ubungakanani obukhulu | Uvavanyo lweVolthi ephezulu | I-Max Run ecetyiswayo (10A, |
|---|---|---|---|
| 4mm² (12 AWG) | 20A | I-1000V DC | Iimitha ezili-15 (iinyawo ezingama-50) |
| 6mm² (10 AWG) | 30A | 1500V DC | Iimitha ezingama-23 (iinyawo ezingama-75) |
| 10mm² (8 AWG) | 45A | 1500V DC | Iimitha ezingama-40 (iinyawo ezili-130) |
| 16mm² (6 AWG) | 65A | 1500V DC | Iimitha ezingama-65 (iinyawo ezingama-213) |
Ezi matrices zinceda ekuqinisekiseni ukuba izinto ezikhethiweyo zihambelana ngokungqongqo neemfuno zombane zesimo esithile se-solar array. Xa ucwangciso luqhubeka ngaphezu kweemitha ezingama-40, abayili beenkqubo kufuneka batshintshele kwi-heavy gauge wiring ukuze bagcine i-total system voltage yehla kakuhle ngaphantsi kwe-3% yokunyamezela okuphezulu okufunekayo kwiikhowudi zombane zamazwe ngamazwe.
Indlela yokuqinisekisa ukuba i-Sourcing kunye ne-Fakelo zifanelekile
Ngaphaya kweenkcukacha-manani kunye neetshathi zobungakanani, ukufumana izixhobo ezithembekileyo kufuna inkqubo engqongqo yokuhlolwa ngexesha lokuthengwa nokuhanjiswa. Ukufumana izinto ezifanelekileyo kubandakanya ukulinganisela ukuthotyelwa kwemithetho, ukuhanjiswa kwezinto, kunye neemfuno zokufakelwa ngokwasemzimbeni ukuqinisekisa ukusebenza kwexesha elide kunye nokhuseleko kumsebenzisi wokugqibela.
Inkqubo yokuqinisekisa umthengi ngenyathelo ngenyathelo
Inkqubo yokuqinisekisa ecwangcisiweyo iqala ngokuphicotha ngokupheleleyo iziqinisekiso zelebhu zomenziAbathengi bezorhwebo kufuneka bafune ubungqina bokuthobela imigangatho yokhuseleko efana ne-UL 4703 eMntla Melika okanye i-EN 50618 eYurophu, eyalela uvavanyo oluqatha lwe Ucingo lwePV ukuqina, ukubambezeleka komlilo, kunye namandla oomatshini. Okulandelayo, vavanya iiparameter zekhonkco lobonelelo; abathengi bamashishini kufuneka baqwalasele ubungakanani obuqhelekileyo be-Minimum Order (MOQs) ukusuka kwi-1,000 ukuya kwi-5,000 yeemitha zobude beentambo ezenziwe ngokwezifiso, kunye namaxesha okuvelisa anokuthatha iiveki ezi-3 ukuya kwezi-6 kuxhomekeke ekufumanekeni kobhedu kwihlabathi liphela. Xa kuhanjiswa, iingcali zasemaphandleni kufuneka zenze uhlolo olubonakalayo nolwemishini. Oku kuquka ukusebenzisa i-multimeter yedijithali ukuvavanya ukuqhubeka ukusuka ekuqaleni ukuya ekupheleni kunye nokuqinisekisa ukuba iindlela zokutshixa isixhumi zisebenzisa ukucofa okucacileyo nokuvakalayo. Uqhagamshelo olufanelekileyo kufuneka luphumelele uvavanyo oluqhelekileyo lwamandla okutsala, olumelana namandla amancinci okutsala angama-89 Newtons ngaphandle kokwahlukanisa.
Indlela Yokuvavanya Utshintshiselwano Ngaphambi Kokukhetha Okokugqibela
Abenzi bezigqibo badla ngokujongana notshintsho olunzima phakathi kwenkcitho-mali yokuqala kunye nemveliso yamandla yexesha elide. Ngelixa iintambo zokulinganisa ezityebileyo kunye izihlanganisi zeprimiyamu zinokunyusa kancinci iindleko zeprojekthi yokuqala, zinciphisa ukuhla kombane kwaye zithintele ukungenelela okubizayo kolondolozo kwiminyaka engama-25 yobomi benkqubo.
Izinto ezibalulekileyo ekufuneka ziqwalaselwe
- Izigqibo ezibaluleke kakhulu kunye nesizathu sokuhambelana kweentambo zolwandiso lwe-PV ezihambelanayo
- Iinkcukacha, ukuthobela imithetho, kunye nokuhlolwa komngcipheko okufuneka kuqinisekiswe ngaphambi kokuba uzibophelele
- Amanyathelo alandelayo asebenzayo kunye nezilumkiso abafundi abanokuzisebenzisa ngoko nangoko
Imibuzo ebuzwa qho
Ndingazi njani ukuba intambo yolwandiso lwe-PV ihambelana nezihlanganisi zam zephaneli yelanga?
Qinisekisa ukuba zombini zisebenzisa umgangatho ofanayo wesixhumi kunye nokunyamezelana okuchanekileyo kokudibana, kungcono ukuba zibe yi-MC4 yokuqala okanye izixhumi ze-MC4 eziqinisekisiweyo ezihambelanayo zonxibelelwano oluvaliweyo lwe-IP67/IP68.
Ngowuphi ubungakanani bekhebula obuqhele ukusetyenziswa kwiiphaneli zelanga zokuhlala?
Uninzi lweenkqubo zokuhlala zisebenzisa i-4mm² (12 AWG) okanye i-6mm² (10 AWG) ubhedu olufakwe ebhotileni olune-stranded, olukhethwe ngokusekelwe kumbane wepaneli kunye nobude bokusebenzisa intambo.
Ngaba kufuneka ndikhethe iintambo zokwandisa ze-PV ze-1000V DC okanye ze-1500V DC?
Tshatisa intambo kwi-voltage ephezulu ye-DC yenkqubo yakho. Sebenzisa intambo elinganiswe yi-1500V kwii-arrays ze-voltage ephezulu; ungaze usebenzise i-voltage esezantsi kunokuba i-array ifuna.
Ndingakunciphisa njani ukwehla kwe-voltage kwi-PV extension cable runs?
Sebenzisa i-conductor enkulu kwaye ugcine i-run imfutshane kangangoko kunokwenzeka. Zama ukuhlala ngaphakathi kwe-voltage ehlayo malunga ne-2% ukuya kwi-3% ukuze ufumane amandla angcono ixesha elide.
Yeyiphi ijakethi yekhebula efanelekileyo xa kufakelwa ilanga ngaphandle?
Khetha intambo ye-PV ene-insulation ye-XLPE okanye ye-XLP engangenisi i-UV. Iphatha ukukhanya kwelanga, i-ozone, kunye nokutshintsha kobushushu ngcono kunentambo eqhelekileyo engaphandle.