Izindlela Zokuhlola Ukusebenza Kwe-PV Circuit Breaker Ekhulekile?

Ukungasebenzi Kwempilo Ye-PV Kwenye Indawo Yokusebenza

Ukufakwa Kwe-PV Circuit Breaker Kwenziwe Kanjani

Umphakathi wokusebenza we-rooftop waphakamisa isistimu yama-600 VDC yezihlalo ezimbili nezintathu emaphakathi amabili nezintathu. Umthengisi wakhetha umcangcithi osheshayo owenziwe ngokujwayelekile okwenzelwe kuphela ukusebenza kwe-AC, futhi wabhekisela ukuthi umcangcithi omncane ungasoloko ukulawula isistimu yama-DC. Ngemva kwezinsuku ezintathu, kwenzeka ukungasebenzi lapho ubugaga bwebonakala kusendaweni yesibhakabhaka. Umthengisi wakhiwe ngokungasoloko ukukhupha umandla wama-DC. Umthengisi owenziwe ngokuhle ipv circuit breaker wakhelwe ngokuphelele lokhu kufanele kwenziwe, futhi umahluko wabonakala kuphela emva kokungasebenzi.

Indawo efanayo emva kwalokho yadlulisa ukuguqula ukusebenza kwamandla kwezindawo zokusebenza nezokuthengisa, apho isistimu sokuhambisana kwamandla kaHongxin sasenziwa ukukhombisa kusodwa. Lokhu kuguqula kusetyenziswa ukuproteka kwe-DC okufanele kubhekwe ngokulinganiswayo, futhi isistimu sokukhombisa sakhombisa indlela encinci yokugqibela kabusha ngaphambi kokuba iyihlukile. Isithombe esifanele kwe-DC esifanele kumkhakha wokugqibela kwe-string sengathiwa ukuthi siza kugqibela umcimbi wokwenzela ngokuphelele. iHongxin Intelligent Technology isinika izifamili zeminiature ne-moulded-case ezisetyenziswa kule ndlela yokuproteka kwe-DC. Lokhu kubonisa ukuthi ukuchaza ukuproteka kwe-DC kuyinto eyinkulu kulokho okwenziwa kuqala.

Kungani isithombe se-AC ayikwazi ukugqibela isikhathi se-DC

Ukungena kwe-DC akahamba ngokuzero ngokunye nesikhathi se-AC. Isithombe se-AC sisebenzisa ukuzero okuphathelene nokuhlukahluka ukuze kugqibele isikhathi. Umcinga we-DC usenza isikhathi sikhangele, sithatha amandla ngokuphathelene. I ipv circuit breaker kufanele isebenza ngokuphakamisa zero noma ukushelela umqondo kumkhumbi wokuvula okubalulekile kwe-DC. Uma isikhundla esingafanele sisetyenziswa, umqondo usisila, uchaza amaphoyinti, futhi ungaqala umkhumbi. Lokhu yindlela eyokuqala ukuthi umuntu othembekile ipv circuit breaker ayikwazi ukubuyisana neyokugcina kwe-AC. Amaphethini amaningi abonakala kulesi sibizo esisodwa, okungabonakala ngokuphathwa kwe-DC okuthembekile ngokwesakhiwo.

Amaphethini Okuhlanganisa Ukusebenza Kwesikhundla Sokuvula Kwe-PV

Ukuchaza ukuvikela kwe-solar kusobala ngamaphethini okuhlanganisa kunezinye izibhalo. Isikhundla sokuvula esithembekile ipv circuit breaker sibonisa ukuthi kuyasebenza ngokwamaphethini okuhlanganisa kwe-voltage, ukuvula, nokuphatha kwezindawo ezingasemthethweni, okunokubonwa ngokujwayelekile kwe-datasheet yomphathi.

I-voltage erayitide kwe-DC Kufanele Iphakamise I-voltage Yokuvula Yomqondo

Iphethini ekhazimbulwa kakhulu yilovoltage lerayitide kwe-DC. I-panel engu-60-cell iphakama ngokwesibonelo ku-37 V yokuvula, futhi i-20-string yokugcina kungafika ku-740 VDC. Isikhundla sokuvula esithembekile ipv circuit breaker kufanele libe ne-rating yevoltage kwe-DC ephezulu kwevoltage yomkhumbi wokugcina, ngezidingo zokuphakama kwelivoltage emzulwini omkhulu. Abachazeli bahlukumeza ukuzima ku-1000 VDC noma ku-1500 VDC. Ukukhetha ipv circuit breaker phansi kwesilinganisi sesivuthi sezitha kusho ukuthi kungakwazi ukuvula ngokuphelele. Manje amadesign angaphansi kwesikhundla sokusebenza akhethwa ukusebenzisa i-1500 VDC architecture, ngakho ke ipv circuit breaker isilinganisi kufanele isihambisane nesibus, akusihambisane ngesibonelo kuphela. Amathimba esifundazwe kufanele asondele futhi isilinganisi emva kokutshintsha isibonelo sesibonelo, ngoba isilinganisi sesivuthi sesibonelo sishintsha umkhawulo wokugcina wesilinganisi sesivuthi. ipv circuit breaker isilinganisi sesivuthi sesibonelo kanye nesilinganisi sesivuthi sokubulala

Isilinganisi sesivuthi sokubulala, esibhalwe ngemakhilowampere, sibonisa ukuthi ubukhulu bekho bokugcina kwesivuthi sokubulala okufanele isikhundla sikwazi ukubulala. Isikhundla esihlakanipile sisho isilinganisi sesivuthi sokubulala se-DC njenge-6 kA noma 10 kA kusilinganisi sesivuthi. Isikhundla sokubulala kanye nokuthinta kwesivuthi kufanele sibulale isivuthi ngemizuzwana yemilisekondi. Isikhundla esingapheli kunceda isivuthi ukubuyisa kabusha, kusindisela ukuthi kubhekwe phakathi. U-Hongxin uhlakanipile ukuthi iziqephu zasemzini zasemphakathi ziyahlanganiswa ngokuphelele naleso siphumo sokubulala emzini. Amalabhoratori amahlanu amahlanu ayavumela isikhundla sokubulala se-DC ngokuphelele ngokuthinteka kwe-sivuthi sokubulala kanye nokubhalwa kwesikhundla sokubulala. Isilinganisi esikhulu sokubulala sibhatala kakhulu kodwa sibhatala ngokuphelele ngokuthi sibuyela ngokuphelele ekuthinteni izivuthi zokubulala zomthetho ozokuthinteka ngazo izikhundla ezingapheli.

Isilinganisi sesivuthi sokubulala, esibhalwe ngemakhilowampere, sibonisa ukuthi ubukhulu bekho bokugcina kwesivuthi sokubulala okufanele isikhundla sikwazi ukubulala. Isikhundla esihlakanipile sisho isilinganisi sesivuthi sokubulala se-DC njenge-6 kA noma 10 kA kusilinganisi sesivuthi. Isikhundla sokubulala kanye nokuthinta kwesivuthi kufanele sibulale isivuthi ngemizuzwana yemilisekondi. Isikhundla esingapheli kunceda isivuthi ukubuyisa kabusha, kusindisela ukuthi kubhekwe phakathi. U-Hongxin uhlakanipile ukuthi iziqephu zasemzini zasemphakathi ziyahlanganiswa ngokuphelele naleso siphumo sokubulala emzini. Amalabhoratori amahlanu amahlanu ayavumela isikhundla sokubulala se-DC ngokuphelele ngokuthinteka kwe-sivuthi sokubulala kanye nokubhalwa kwesikhundla sokubulala. Isilinganisi esikhulu sokubulala sibhatala kakhulu kodwa sibhatala ngokuphelele ngokuthi sibuyela ngokuphelele ekuthinteni izivuthi zokubulala zomthetho ozokuthinteka ngazo izikhundla ezingapheli. ipv circuit breaker isikhundla esihlakanipile sisho isilinganisi sesivuthi sokubulala se-DC njenge-6 kA noma 10 kA kusilinganisi sesivuthi. Isikhundla sokubulala kanye nokuthinta kwesivuthi kufanele sibulale isivuthi ngemizuzwana yemilisekondi. Isikhundla esingapheli kunceda isivuthi ukubuyisa kabusha, kusindisela ukuthi kubhekwe phakathi. U-Hongxin uhlakanipile ukuthi iziqephu zasemzini zasemphakathi ziyahlanganiswa ngokuphelele naleso siphumo sokubulala emzini. Amalabhoratori amahlanu amahlanu ayavumela isikhundla sokubulala se-DC ngokuphelele ngokuthinteka kwe-sivuthi sokubulala kanye nokubhalwa kwesikhundla sokubulala. Isilinganisi esikhulu sokubulala sibhatala kakhulu kodwa sibhatala ngokuphelele ngokuthi sibuyela ngokuphelele ekuthinteni izivuthi zokubulala zomthetho ozokuthinteka ngazo izikhundla ezingapheli. ipv circuit breaker isilinganisi sesivuthi sokubulala, esibhalwe ngemakhilowampere, sibonisa ukuthi ubukhulu bekho bokugcina kwesivuthi sokubulala okufanele isikhundla sikwazi ukubulala. Isikhundla esihlakanipile sisho isilinganisi sesivuthi sokubulala se-DC njenge-6 kA noma 10 kA kusilinganisi sesivuthi. Isikhundla sokubulala kanye nokuthinta kwesivuthi kufanele sibulale isivuthi ngemizuzwana yemilisekondi. Isikhundla esingapheli kunceda isivuthi ukubuyisa kabusha, kusindisela ukuthi kubhekwe phakathi. U-Hongxin uhlakanipile ukuthi iziqephu zasemzini zasemphakathi ziyahlanganiswa ngokuphelele naleso siphumo sokubulala emzini. Amalabhoratori amahlanu amahlanu ayavumela isikhundla sokubulala se-DC ngokuphelele ngokuthinteka kwe-sivuthi sokubulala kanye nokubhalwa kwesikhundla sokubulala. Isilinganisi esikhulu sokubulala sibhatala kakhulu kodwa sibhatala ngokuphelele ngokuthi sibuyela ngokuphelele ekuthinteni izivuthi zokubulala zomthetho ozokuthinteka ngazo izikhundla ezingapheli.

Ukuphakanyiswa Kwemithambo, Ukuphuma Kwemithambo, Nokuthula Kude

Izinhlangano zezibalo zikhulisa ukuphakanyiswa kwezinhlangano, futhi izinhlangano eziqinisekisiwe ipv circuit breaker kufanele zilindele umsebenzi wokuphinda kabusha ngomunye umlando ngaphandle kokugqamisa kwezinhlangano. Umsebenzi wokuphuma kwemithambo kwezihlathi, ikakhulu emazulwini amahlanu, uyabeka imiphumela yokuqinisekisa. I-DC isolator enobuhle ipv circuit breaker isebenzisa izinkampani ezihlukene ngezindawo zabo futhi izihlathi zokuphuma ziyadlula kude. Ithekhnikhi kufanele ibe yisikhathi eside sokubuka kwezinye izinsuku zokuphakanyiswa kwezibalo. I-DC isolator engafanele ipv circuit breaker iyagcina ngokushesha kuze kube yisilingo ngokuphinda kabusha. Ngaphambi kokuthengiselwa, qinisekisa ukuthi ipv circuit breaker ukuchaza ukuphakanyiswa kwezinhlangano kuyavumela ukuthi isikhombisa sivumelane nezinhlangano zokuphakanyiswa ukuze usuke ukubeka kwezinhlangano ngokungafanele. Ukugqamisa kwezinhlangano kwezinhlangano ezingavumelekile ziyakhiya umkhondo uvumelekile nakafuna ukuthi isikhombisa sivumelane, okuyindlela eyodwa yezinhlangano zezibalo.

Ukubuka Kwezinye Izinsuku Nokuthula Kwezindawo

Ukusebenza emhlabathini uyabuka ukuguqula kwezinsuku futhi ukudla. I-DC isolator eqinisekisiwe ipv circuit breaker iyabona ukuthi i-DC isolator iyasebenza ngokuvumelana nokuthula kwezinsuku futhi iyasebenza ngokuvumelana nokuthula kwezindawo. I-IP65 yisikhumbuzo sokuthula kwezindawo sivumela ukuthi isikhumbuzo sikhiya ukudla futhi sikhiya ukusheleka kwezinhlangano zokuphakanyiswa. ipv circuit breaker kufanele ikhombise ukuthi iphakathi kwezikhathi zokusebenza ezizimele. iTekhnoloji Yokwazi kaHongxin iyabuyisa izinkulungwane zokugcina ngamaphuzu amahle, kusukela emasitayilini okuhlanganisa izindaba kuya kumaphuzu okuhamba kwemibili. Ukuphakama kwezincwadi zokubusa kuzisa isikhathi sokusebenza, ngakho-ke le ipv circuit breaker indlela kufanele ibe yisikhathi sokuvula. Lokhu kufanele kwenziwe kuzo zonke izindawo zokugcina nezindawo zokuguqula kwezindawo zonke.

Izistandadhi Ezithi I-PV Circuit Breaker Ekhulekile

Izistandadhi zasezinye nezinye ziyabika umlando wokubiza. Ukufunda isithombe asifanele; le ipv circuit breaker kufanele ibe nesithombe sokuzimisa esibonakalayo ngomthombo owenzelwe. IEC 60947-2 isivumela izinkulungwane zokusebenza phansi kokuphepha nokubhala, kusukela izinkulungwane zokuphepha, futhi IEC 60898 isivumela izinkulungwane zokusebenza kwezindlu nezinye. I-PV Circuit Breaker ekhulekile ipv circuit breaker eyalwa kubuso lwesayensi yezinsiza zokusebenza kufanele iyalwe ngokujabulisana ne-IEC 60947-2 futhi nezindlela zokubiza kwe-IEC 62477 yokubiza izinhlelo zokuguqula amandla. KweNorth America, UL 489 no-UL 1077 zibeka iziphakamiso zokubusa nokubusa kwezindawo zokubusa. Ukubusa kwezimpilo zokubusa kufanele kubhekene ne ipv circuit breaker iyafollowa i-IEC 61643, futhi i-enclosure ingress iyafollowa i-IEC 60529. Ukubhala kwe-system kufanele kuhloniphe i-NFPA 70 NEC Article 690 yamaphepha ase-PV, ngakho-ke i-OSHA 29 CFR 1910 iyabuyisela ukuphepha kwemithombo yezilumkiso emsebenzini. I-NEC Article 690 ibhekise ekhombeni kwe-visible disconnect, ngakho-ke i- ipv circuit breaker iqondana ngokushesha neswitch yokugqibela esibonakalayo. Abahleli abanayo i-ISO 9001 bakhombisa ukuthi ubukhulu bokulungisa kubalulekile kuzo zonke izinto zabo ipv circuit breaker bathumela.

Lokhu kucwaninga okunye kusenza umbuzo wokusebenza. I-IEC 60947-2 ithembisa ukuthi kungasebenza ukugcina; i-IEC 62477 isebenzisa amaphutha ayo akhokhelwa ku-converter; i-UL 489 inika indlela ephawuleka eNorth America; i-NEC Article 690 isetshenziswa ukubhala nokugqibela; i-ISO 9001 isebenzisa umkhosi wokuproducwa. I-DC-rated breaker enomthwalo wezindaba zokuhlanganisa lezi zinhlobo zinika i-EPC isifundo sokuthi sikhetha isifundo esihlakanipha. Abadistributore abanabantu abayishaya izinhlobo ezihlanganisa nezinhlobo zokuhlanganisa zizokwenza ukuthi kungavaliwe kakhulu futhi zibhalela ubuso bakho emazwe amaningi ase-solar.

Ukukhetha, Ukubona futhi Ukuphatha i-PV Circuit Breaker

Ukukhetha nokuhlela kubhekise indlela okungaphila ngayo isiphequluli sesiphothi uma kufanekile kumkhakha wokuphakama. I- ipv circuit breaker isibonakaliso esihlukile sifika uma kusakwa ngendlela engeyona noma kusakwa ngeminyaka eminingi.

Isilisthi Yokukhetha Okusebenzayo

Qala ngokuqinisa ivoluthi yokuvula kwesitringi ne-ampere yokufaulu kwesiqulethe. Khetha i- ipv circuit breaker eneyovoluthi yomkhakha we-DC iphakade kwe-maximum yomkhakha nokhokho lokufaula okwenzelwe. Qiniseka ukuthi isivumelwano sesifunda siphakade kumarket eyodwa—i-IEC kuzo zonke iziprojekthi zemkhakha, i-UL kweNorth America. Qiniseka ukuthi irangi yamaphethini ne-IP rating isithandwa kumkhakha wokusakwa. Amasiphothi kaHongxin a- amcini Wokuvimbisa Okuphakeme kanti amabreaker Asebenza Emkhumbi abuyela amasiphothi we-DC kweziqulethe zomkhakha nasezicomber boxes. Umsebenzi owenziwe ngokuphelele u- ipv circuit breaker wafika futhi nesibonakaliso esicacile sokurating we-DC, akukho sibonakaliso se-AC kuphela. Thabatha isibonakaliso sesiphothi esikhethwe nesicurve se-DC kufayili yeprojekthi ukuze kubhekiswe ngamanye amadoda emva kwalokho. Kuma-combiner boxes, bala i- ipv circuit breaker ngosilingi ngosilingi ukuze umfanekiso oyodwa uyisoletha umbhali wokugcina kuphela, akuyisoletha wonke umkhakha.

Izindlela Zokubheka Kwesifundazwe Nokuhlela

Yohlukanisa amatereminali ngalinye isihlanu sokukhanya, ukubuyekeka kwezibonakalo, noma ukusho kwamazwi. Umkhawulo wokuphepha okuhle ipv circuit breaker uyadlala emva kwezinhlayiya zokusebenza ngaphansi kokusebenza. Sebenzisa ikamera yezintemperatura ngalinye isikhathi sokukhanya kakhulu ukuze ubone amapoyinti okuphepha kahle. Yohlukanisa amaqondana ngokulinganisa kwezinhlayiya zokusebenza, ngoba amaqondana angafanele aqondane ngokuphepha kwe-DC. Yohlukanisa umsebenzi wokuphepha kumthombo wokugcina ngalinye isikhathi sokungasebenzi, futhi shintsha konke ipv circuit breaker okuphephile indlela enkulu yokuphepha—ukwephepha kwenza ukuthi ukwephepha kwezinhlayiya kufanele kususwa. I- mayelana Nathi yabonisa ukuthi uHongxin uyathuthukisa izinkulungwane zokuphepha kwezinhlayiya zokusebenza, futhi kubonisa ukuthi ukubonakalisa ukuthi ukuphepha kwezinhlayiya kufanele kubonakaliswa kabusha ngaphambi kokuphepha. Umthombo wokugcina owenziwe ngokubhalwa kwezinhlayiya zokuhlukanisa kuyenza ukuthi ukubhalwa kwezinhlayiya zokuhlukanisa kuzobonakala kahle ngalinye isikhathi sokubhalwa kwezinhlayiya zokuhlukanisa. ipv circuit breaker ngokubhalwa kwezinhlayiya zokuhlukanisa kuyenza ukuthi ukubhalwa kwezinhlayiya zokuhlukanisa kuzobonakala kahle ngalinye isikhathi sokubhalwa kwezinhlayiya zokuhlukanisa. Bhalisa izintemperatura zokusebenza nezintemperatura zokusebenza ukuze ukuthi ukuthinteka kwezinhlayiya zokuphepha kuzobonakala kahle. ipv circuit breaker ukuphepha kwezinhlayiya zokuphepha kuzobonakala kahle.

Imibuzo Evame Ukubuzwa

Umbuzo: Yini inhliziyo yezinhlayiya zokuphepha zokusebenza kwe-PV kusetyenziswa kwezinhlayiya zokuphepha zokusebenza kwe-1500 VDC?

Impendulo: Umshinzi wokuvimbisa kwe-pv wezinkampani zokuqala zezinkampani zokuphatha i-1500 VDC kufanele abe nezinhloko zokuphatha i-DC ozungezansi kwezinhloko zokuphatha kwezinkampani zokuphatha i-voltage yezinkampani zokuphatha, akuzange kuphela i-voltage yezinkampani zokuphatha. Amaphuzu amncane ayakhula i-voltage yezinkampani, ngakho abasayensi bafaka i-margin. Izindlela zokusebenza kwezinkampani zokuphatha izinkampani zokuphatha i-1500 VDC nezinhloko zokuphatha ezinamandla okuvimbisa. Qinisekisa ukuthi i-marking ibonisa i-voltage yezinkampani zokuphatha, ngoba i-label yezinkampani zokuphatha akukhombisa ukuthi i-voltage yezinkampani zokuphatha iyasebenza ngokuphelele emkhakheni.

Umbuzo: Ingaba umshinzi wokuvimbisa wokuphatha i-AC ungasivimbisa i-string yezinkampani zokuphatha i-DC?

Impendulo: Umshinzi wokuvimbisa wokuphatha i-AC akufanele asivimbise i-string yezinkampani zokuphatha i-DC. I-Alternating current iyagcina i-zero ngeminye imizuzu, futhi liyavumela ukuthi i-arc isivimbe ngokwakhe, ngakho i-direct current iyashisa i-arc. Umshinzi wokuvimbisa kwe-pv uyavimba ngokuphelele ngendlela eyalwe ngokuphelele ngokuphatha i-arc-quenching chamber. Ukufaka i-unit yezinkampani zokuphatha i-AC kuphela kuyakhula i-arc esiqondile, ukuthwasa kwesikhundla, nokufa. Yenza ngokuphelele ukuthi ubhekise i-DC-rated protection futhi uqinisekise i-label kabefore ukuthi ushale i-rooftop noma i-ground-mount array.

Umbuzo: Yikuphi umkhakha owodwa osebenzayo kwi-pv circuit breaker eNorth America?

Impendulo: ENorth America, i-pv circuit breaker isebenzisa ulwazi lwe-UL 489 yokulawula umgqa wokubhala okanye ulwazi lwe-UL 1077 yokulawula okudlula, ngaphandle kwe-NFPA 70 NEC Article 690 yokugxila izihlalo zesi-pv system nokulawula ukususa. Lezi zikhakha zizidinga ukuthi kwenziwe ukuzivocavoca, ukubhala, nokufaka. Abaprofesiwe bakho bokubeka amakhono (EPCs) kufanele bavokele ulwazi oluphelele lwesicelo, ngoba izixhobo zokulawula okudlula nezokubhala zinamandla amabili kusilinganiso sesi-solar installation.

Umbuzo: Kuphi na isikhathi sokuvocavoca i-pv circuit breaker?

Impendulo: Kufuna ukubheka kwe-pv circuit breaker kusenokwenza ngamashumi amabili ngomnyaka, ngokwanele ngeminyaka yokuqondisa. Bheka amaphuzu okukhanya, ukuguqula umbala, noma isithonjana, futhi sebenzisa isithonjana sokuchaza isikhathi sokuphakeme kwezulu ukuze ubone izindawo eziyisikhathi sokuphakeme. Yenza amaphuzu okukhanya ngokulinganisa, ngoba amaphuzu okukhanya angafanele aqondile. Thabatha izinsuku zokuzimela nezintemperatura zokusebenza ukuze ubone ukuguqula okuncane. Shintsha yonke into eyayiqonda umphumela omkhulu, ngoba umkhawulo wokuvula uyasebenza.

Umbuzo: I-IEC 62477 inetha yini ekulungiseni kwe-PV?

Impendulo: I-IEC 62477 iyathola isibonelo sesafety sezinkampani zokugcina amandla, okuyisibonelo sezinkinga zokuvula kwe-inverter yezilwanyana zokuphakama ezinokungahlanganisiwa ngokuphelele ngokulinganisa kwesibonelo sokuvula. I-pv circuit breaker eyalinganiswe ngokuhambisana nezindlela zokusebenza kwe-IEC 62477 iyasebenza kahle kuzinkinga ozalwe ngokugcina amandla nokuzinga kwezinto zokuphakama. Ukudibanisa kanye no-IEC 61643 yokulungisa isibonelo sokuvula kwezinto zokuphakama nokulinganisa kwe-IEC 60529 yokubeka izindawo zokugcina kuyenza isibonelo sokulungisa isibonelo sokuvula kwe-DC esifanele kwezilwanyana zokuphakama.

Umbuzo: Umphakathi we-pv uyahlinzeka njani ngokuhlukanisa umphakathi we-AC ngokuvula umqolo?

Impendulo: Umphakathi we-AC uyasebenzisa ukugcina kwe-AC okungapheliyo (zero crossing) ukuvula umqolo. Umphakathi we-pv uyabona i-DC esiqinileyo noma kunjalo akukho ukugcina, futhi kufanele aqiniseke nokuhlula umqolo ngendawo eyodwa yokuhlula umqolo ukuze isikhathi siphela. Uma le ndawo ayikho, umqolo uyaphila futhi uyahla amapharti. Le yilokho okuhlinzekayo kuphela okuphakathi kwezinto ezihlukene ngokwesithunzi, kodwa kuyinto ebalulekile ukuthi izinto zezibalo ze-DC ziyafanele kusetyenziswa ekulungiseni iziqu zemithombo yomoya neziqu zokugcina.