Ibhetri ye-AGVIsikhokelo sokuKhetha: I-Voltage, iSakhono kunye neeMfuno zokuTshaja
Kule minyaka mithathu idlulileyo, sibone iiprojekthi ze-AGV ezininzi zifumana ukhetho lwebhetri olungalunganga kunokulungileyo. Akunjalo ngenxa yokuba abaxumi abanalo ulwazi lobugcisa, kodwa ngenxa yokuba ababoneleli bamaphepha athile banikezelayo abanamsebenzi wokwenza izigqibo zokwenyani. Iibhetri ezimbini ezibhalwe 48V 100Ah, enye ixabisa ngokuphindwe kathathu kunenye. Yintoni umahluko? Nantso into esi sikhokelo ngayo.
UKhetho lwamandla ombane
Umthengisi wakho we-AGV uthi isithuthi sifuna i-48V, ngoko ke uyothenga iibhetri ze-48V. Kubonakala kuthe ngqo. Ayiyo.
I-physics esisiseko kuqala.
Amandla alingana namaxesha ombane angoku. Ukukhupha i-5000W, inkqubo ye-48V idonsa i-104A, inkqubo ye-36V idonsa i-139A, inkqubo ye-24V idonsa i-208A. Inqanaba eliphezulu langoku lithetha iintambo ezityebileyo, ukunxiba okukhawulezileyo kwe-contactor, ubushushu obuninzi kwizihlanganisi. Ukusebenzisa i-24V apho ungasebenzisa i-48V icela ingxaki endleleni.
Kodwa iiprojekthi zokwenyani azilula kangako. Senze iprojekthi yokugcina ebandayo kulo nyaka uphelileyo, ekuqaleni spec'd 48V LFP. Ngexesha lovavanyo, ukuchasana kwangaphakathi kufakwe kwixesha elibandayo, ukhuseleko lokutshaja luhlala luqala. Tshintshela kwi-36V. Ukusebenza kancinci ephepheni, kodwa kunokwethenjelwa. Kwiindawo zesikhenkcisi, ukuthembeka kubetha ukusebenza kakuhle ngalo lonke ixesha.
Imigaqo yam yokhetho lombane:
24V
I-24V isebenzela imithwalo engaphantsi kwe-500kg, phantsi kwemfuno yamandla ye-2kW, uhlahlo lwabiwo-mali oluqinileyo. Ngokunyaniseka asifane sicebise i-24V kwakhona ngaphandle kokuba abathengi bayicele ngokukodwa.
48V
I-48V igubungela uninzi lwee-AGVs zokugcina. Iphatha imithwalo ye-1 ukuya kwi-2.5 yeetoni, izibonelelo zokutshaja ezivuthiweyo, ukhetho olubanzi lomthengisi. Ukhetho oluhlala lukhona ukuba akukho nto ikhethekileyo iqhubekayo.
72V+
I-72V kunye ne-80V yeeforklift ezinzima, izixhobo ze-port, abathuthi bangaphandle. I-Samsung SDI yakha inkqubo ye-94V yee-forklift zombane ze-10-toni ekucingelwa ukuba ihambelana nokusebenza kwe-diesel (evela kwiwebhusayithi yabo, andizange ndiyivavanye ngokwam, kodwa irekhodi le-Samsung kule ndawo liqinile).
Umthamo: Wonke umntu uyayazi iFomula, akukho mntu waziyo ukuba ungawafumana phi amagalelo
Ifomula
Umthamo (Ah)=Amandla (W) × Ixesha lokuqalisa (iiyure) ÷ I-Voltage (V) ÷ Ukusebenza kakuhle
Ukusebenza kakuhle: 0.95 ye-lithium, i-0.85 ye-asidi ehamba phambili.
Ingxaki linani "lamandla". Abathengisi be-AGV bakunika "iimeko eziqhelekileyo" ezithetha imigangatho ethe tyaba, imithwalo esemgangathweni, akukho kuqalwa rhoqo kunye nokuma. Iindawo zokugcina iimpahla zokwenyani zineendawo ezithambekileyo, ukugcwala, iiyure eziphakamileyo ngokusebenza ngokuqhubekayo. Utsalo lwamandla okwenene lunokubaleka ngama-50% ngaphezulu kwamanani eshiti.
Esikwenzayo: cela umthengisi we-AGV amanani amathathu. Amandla okuhamba ngenqanawa ongalayishwanga, amandla alayishiweyo anyukayo, amandla encopho. Uze uqikelele i-avareji enobunzima ngokusekwe kwiindlela zokwenyani zomthengi. Ukuba umthengisi anganika kuphela inani elingacacanga "umndilili wamandla", ndiphindaphinda ngo-1.3 phambi kokubala.
Ukufumana ireferensi, i-JD Logistics ipapashe idatha kwii-warehouses zabo ze-Asia No.1. IiDilang AGVs zabo zithwala i-500kg, ziqhuba i-6 kwiiyure ze-9 ezilayishwe kwiiseli ezithunyelwa ngaphandle, zixhasa i-50A yokutshaja ngokukhawuleza egqiba kwimizuzu ye-30 (umthombo: i-JD Logistics amaxwebhu obugcisa). Kwi-48V, i-50A yokutshaja ithetha amandla ebhetri kwindawo ethile phakathi kwe-40Ah kunye ne-60Ah. Oko kunengqiqo kumntu ophethe i-500kg. Ukuba isithuthi sakho sihamba ngeendlela ezinde, nyusa umthamo ngokufanelekileyo.
IKhemistri: LFP, NMC, LTO Nganye IneNdawo Yayo
Iikhemistri ezintathu ze-lithium zilawula imarike ye-AGV. Nantsi into endiyithabathayo:
LFP (lithium iron phosphate)
Ukhetho olufanelekileyo kwi-90% yeeprojekthi. Ubomi bomjikelo omde, iprofayili elungileyo yokhuseleko, iindleko ziye zehla kakhulu. I-CATL kunye ne-BYD zenza iiseli ze-LFP ezithembekileyo kunye neentambo zokubonelela ezivuthiweyo. Ngaphandle kokuba unesizathu esithile sokukhetha enye into, ukusilela kwi-LFP.
NMC (nickel manganese cobalt)
Uxinaniso lwamandla oluphezulu kune-LFP, kodwa ubomi bomjikelo omfutshane kunye nomngcipheko ophezulu wokubaleka we-thermal. Qwalasela i-NMC kuphela ukuba indawo yebhetri yakho ye-AGV incinci kakhulu ukuba ingalingana nomthamo we-LFP oyifunayo. Ngokwam andiyithandi i-NMC kwindawo yokugcina iimpahla. Ukuba i-thermal runeway iyenzeka, ulahlekelwa yi-inventory yonke ye-warehouse, kungekhona nje i-AGV.
LTO (lithium titanate)
Imeko ekhethekileyo. Ubuninzi bamandla sisiqingatha se-LFP (ephantsi kakhulu), kodwa isantya sokutshaja sigqithise kakhulu (i-5C ayikho ingxaki, intlawulo epheleleyo ngemizuzu eyi-12), ubomi bomjikelezo bugqithise ({3}} imijikelo), ukusebenza kwemozulu ebandayo kugqithise (isebenza kwi-minus 30 degree). Ixabiso likwagqithisile. Iimeko ezimbini apho i-LTO yenza ingqiqo: ukusebenza okuqhubekayo kwe-24/7 kunye ne-10 ukuya kwi-15 yefestile yokutshaja ngomzuzu, okanye i-cold chain bume ezinobunzulu obunzulu be--zero. Ukuba iprojekthi yakho ingena nakweyiphi na imeko, ixabiso leprimiyamu ye-LTO liyathetheleleka.
| Uhlobo | Ukuxinana kwamandla | Imijikelo | Iinkcukacha |
|---|---|---|---|
| LFP | 90 ukuya kwi-160 Wh/kg | 2000 ukuya 5000 | Iphatha i-1C yokutshaja isohlwayo, isebenza ukuya kuthi ga kwi-minus 20 degree, ixabiso eliphakathi. |
| NMC | 150 ukuya 220 Wh/kg | 1000 ukuya ku-2000 | Qaphela ngaphezu kwe-1C yokutshaja, ukusebenza okubandayo okuphakathi, ixabiso eliphezulu. |
| LTO | 50 ukuya kwi-80 Wh/kg | 15000 ukuba 20000 | Iphatha i-5C yokutshaja, isebenza kwi-minus 30 degree, ixabiso eliphezulu kakhulu. |
I-LFP Chemistry efanayo, iSakhono esahlukileyo: Indlela yokukhetha
Abantu babuza oku kakhulu. Uninzi lwababoneleli abayichazi kakuhle kuba bafuna ukuba uthenge ezinkulu (umda ophezulu).
Ngaba enkulu ihlala ingcono? Hayi.
Iingxaki ezinkulu zamandla
Okokuqala, ubunzima.Ipakethi ye-100Ah LFP inobunzima obujikeleze i-45kg, i-200Ah inobunzima be-85kg. Loo 40kg yongezelelekileyo inciphisa umthamo womthwalo okanye inyuse ukusetyenziswa kwamandla ngohambo ngalunye.
Okwesibini, ukutshaja ixesha.Kwi-0.5C, i-100Ah ithatha iiyure ze-2, i-200Ah ithatha iiyure ze-4.
Isithathu,ukuba utshintsho ngalunye lusebenzisa kuphela i-30% yomthamo webhetri, i-70% yezo seli zihlala kwimo ephezulu yentlawulo yonke imihla, ukukhawulezisa ukuguga kwekhalenda.
Iingxaki zomthamo omncinci
Iingxaki zomthamo omncinci ziyabonakala: ixesha elifutshane lokubaleka, umngcipheko wokufa kwezithuthi phakathi-nokutshintsha ukuba ishedyuli yokutshaja iyatyibilika.
Umgaqo wam wokulinganisa
Bonisa ukuba angakanani amandla asetyenziswa yisithuthi phakathi kwamathuba okutshaja, emva koko ukhethe umthamo ngoko usebenzisa i-60% ukuya kwi-70% yepakethi kumjikelo ngamnye. Ayinzulu ngokwaneleyo yokucinezela iiseli, ayinzulu ngokwaneleyo yokuchitha imali kumthamo ongasetyenziswanga.
Umzekelo: I-AGV inokuhlawula zonke iiyure ze-4, ukusetyenziswa kwamandla okuphakathi kwe-800W. Iiyure ezine kwi-800W yi-3200Wh. Kwi-48V yi-67Ah. Ipakethe ye-100Ah ithetha ukusetyenziswa kwe-67% kumjikelo ngamnye. Nantso indawo emnandi. Ipakethi ye-150Ah iya kusebenzisa kuphela i-45% kumjikelo ngamnye, imosha inkunzi kwiiseli ezingafumani kugcinwa kwazo.
I-DOD kunye noBomi boMjikelo: Olu lwazi luya kukugcina imali
I-DOD ithetha ubunzulu bokukhutshwa. Impembelelo yayo kubomi bebhetri inkulu kunokuba abantu abaninzi becinga.
IYunivesithi yeBattery (batteryuniversity.com) idatha yovavanyo epapashiweyo ndiya kucaphula ngokuthe ngqo:
Iiseli ze-LFP zijikelezwe kwi-100% ye-DOD ifikelela kwi-80% umthamo ojikeleze imijikelo engama-600. Iiseli ezifanayo zijikelezwe kwi-40% ye-DOD zihlala ngaphezu kwee-3000 zemijikelo. Ibhetri enye, ukukhwela ibhayisekile okungenzulu kuzisa amandla aphindaphindeneyo angaphezulu kubomi bawo kunebhayisekile enzulu.
Kuthetha ukuthini oku ngokwenene? Kungcono ukuthenga umthamo omkhulu kancinane kwaye usebenzise isiqingatha sawo kuphela kunokuthenga kanye le nto uyidingayo kwaye uyikhuphe kumjikelo ngamnye. Indlela yesibini ibonakala inexabiso eliphantsi ngaphambili kodwa uya kutshintsha iibhetri rhoqo.
Ubume bethu obuqhelekileyo ngoku: umgangatho we-SOC kwi-20% ukuya kwi-25%, isilingi kwi-80% ukuya kwi-85%, izithuthi zisebenza ngaphakathi kule festile. Idityaniswe nethuba lokutshaja, ubomi bebhetri banda kabini ukuya kwezintathu xa kuthelekiswa nentlawulo epheleleyo/ukukhupha ibhayisekile.
Enye ingcamango ephosakeleyo eqhelekileyo
Abantu abaninzi bacinga ukuba iibhetri ze-lithium zifuna ukukhutshwa okugcweleyo ngamaxesha athile ukuze "zilinganise." Leyo yi-nickel cadmium yokucinga, ayilunganga ngokupheleleyo kwi-lithium. Ukukhutshwa okunzulu kulimaza isakhiwo se-electrode. I-BMS yale mihla isebenzisa ukubala kwe-coulomb kuqikelelo lwe-SOC, ayifuni imijikelo engenanto yokulinganisa.
IQhinga lokuTjaja: Ithuba lokuTjaja okanye Ukutshintsha ibhetri
Zombini ezi ndlela zinendawo yazo. Akukho nokuba "uhambele phambili ngakumbi."
Ithuba lokutshaja
Isebenza xa ukusetyenziswa kwe-AGV kuhlala ngaphantsi kwe-75%. Iintlawulo zemoto ngelixa ulinde imisebenzi, ufole, ulayisha / usothula. Iseshoni nganye iqhuba imizuzu eli-15 ukuya kwengama-30. Yongeza ixesha elaneleyo lokubaleka imini yonke. Akukho kungenelela komntu okufunekayo. Nge-LFP exhasa ukutshaja kwe-1C, imizuzu ye-15 yongeza malunga ne-25% umthamo, owanele enye iyure okanye ezimbini zokusebenza.
Ukutshintsha ibhetri
Isebenza xa ukusetyenziswa kungaphezu kwe-95% kwaye izithuthi azikwazi ukuma. Imoto ingena kwisikhululo sokutshintsha, ibhetri itshintshiwe kwimizuzu emi-2 ukuya kwemi-5, ibuyele emsebenzini kwangoko. Ukurhweba -: isithuthi ngasinye sidinga iibhetri ezi-2 ukuya kwezi-3, izixhobo zokutshintsha ezizinikeleyo, abaqhubi ukuze benze utshintsho.
Ityala le-DHL lifanelekile ukuba liqatshelwe. Amaziko abo okusasaza kwihlabathi jikelele asebenzisa iirobhothi ze-Locus Robotics ezinokutshaja ngamathuba. Ukuchongwa ngokufanelekileyo kuphuculwe ngama-50% ukuya kuma-70%, ukonzakala emsebenzini kwehle nge-15% (umthombo: iwebhusayithi yeDHL kunye neeNkcazo zokuLungiselela iMisebenzi). Ezo nzuzo ezisebenzayo aziveli kwiirobhothi ngokwazo. Ukutshaja kwamathuba kwenza umsebenzi wokwenyani weeyure ezingama-24 ungaqhutywanga. Ukongiwa kweendleko zabasebenzi kuninzi.
Imigibe yendawo ebandayo
Ukuba uvimba wakho unendawo efrijini okanye efrijini, ukukhetha ibhetri kufuna ukhathalelo olongezelelweyo.
Iibhetri zeLithium zineengxaki ezimbini kubanda. Okokuqala, umthamo wehla: kwi-minus 10℃, i-LFP igcina mhlawumbi i-85% umthamo; kwi-minus 20℃mhlawumbi 70%. Okwesibini, izithintelo zokutshaja: ukutshaja i-lithium ngaphantsi komkhenkce kubangela ukufakwa kwe-lithium kwi-anode. Lo ngumonakalo osisigxina kunye nengozi yokhuseleko. Uninzi lwe-BMS yenqaba intlawulo yangoku xa ubushushu beseli buhla ngaphantsi kwe-0 degree.
Izisombululo ezisebenzisekayo: mhlawumbi usete iindawo zokutshaja ngaphandle kwendawo ebandayo (izithuthi ziphuma zisiya kutshaja, zibuya xa zenziwe), okanye sebenzisa iisistim zebhetri ezinobushushu bangaphambili (iiseli ezishushu ezingaphezulu kweqondo lomkhenkce phambi kokwamkela intlawulo yangoku).
Ukuba ii-AGVs zakho zisebenza ixesha elongeziweyo ngaphantsi kwe-25℃, umgangatho we-LFP mhlawumbi awuyi kunqumla. Qwalasela i-LTO okanye iibhetri ezikhethekileyo ezibandayo. Iiseli ze-LMFP ze-SVOLT zibanga ukusebenza kwi-minus 30 degree. Bakhe indawo endilisekileyo kwi-cold chain logistics. Kufanelekile ukuphandwa kwezicelo zesikhenkcisi.
Ukubaleka Amanani
Amanani aphathekayo. I-48V AGV enye, -ezimbini zokusebenza (iiyure ezili-16 ngosuku), i-horizon yeminyaka emihlanu.
Indlela yeasidi yokukhokela
Iibhetri (2 ukujikeleza): $4,000
Itshaja: $1,500
Umbane wonyaka (iminyaka emi-5): $9,000
Ukugcinwa konyaka (5 yrs): $3,000
Ukutshintshwa (Unyaka wesi-3): $4,000
Ilahleko yexesha lokuphumla (iminyaka emi-5): $12,000
-iminyaka emihlanu: iyonke i-$33,500
Indlela ye-LFP
Ibhetri (enye kuphela):$12,000
Itshaja ekhawulezayo: $3,500
Umbane wonyaka (iminyaka emi-5): $5,750
Ugcino:$0
Ukutshintshwa: $0
Ilahleko yexesha lokuphumla (iminyaka emi-5): $2,000
-iminyaka emihlanu: iyonke i-$23,250
Ugcino: $10,250, malunga nama-31%
Oku akubali nokubala iindleko zokulahla iasidi ekhokelayo okanye ixabiso lentsalela ye-lithium emva kweminyaka emihlanu.
Xa i-lithium ingenzi ngqiqo? Ukusebenza kweshifti enye (ngaphantsi kweeyure ze-8 imihla ngemihla), ukusetyenziswa okuphantsi. Ixabiso elisezantsi leasidi yelothe lithatha iminyaka esi-7 ukuya kwesi-8 ukoyisa. Ukuba ummandla weprojekthi yakho yiminyaka emi-3 ukuya kwemi-5 kuphela kwaye uqhuba ishifti enye kuphela, iasidi yokukhokela inokukhupha ipensile ngcono.
I-BMS: Ngakumbi kuneeSekethe zoKhuseleko
Abantu abaninzi baphatha i-BMS njengeesekethe zokukhusela nje. Sika ibhetri ngexesha lokutshaja ngaphezulu, ngaphezulu{1}}ukukhupha, ngaphezulu{2}}kwangoku, ngaphezulu{3}}kweqondo lobushushu. Umsebenzi wenziwe. I-BMS yanamhlanje yenza okungakumbi.
Uqikelelo lwe-SOC
I-BMS elungileyo ifezekisa ukuchaneka ngaphakathi kokudibanisa okanye ukuthabatha i-1% ukuya kwi-3% (ibango le-Infineon's technical docs lidityaniswe okanye thabatha i-1% kwizisombululo zabo). Kutheni kubalulekile nje ukuchana? Inkqubo yakho yokuthumela inokwabela imisebenzi ngokusekelwe kwintlawulo eseleyo yesithuthi ngasinye. Izithuthi {{5}ezibiza kakhulu zifumana{6}}imisetyenzana emide, izithuthi{7}ezibiza kancinci zifumana imitsi emifutshane okanye ziye kutshaja. Ukuba impazamo yoqikelelo lwe-SOC yi-10%, olu lungiselelo luba yinto engenakwenzeka.
SOH esweni
Ukulandelwa kwemeko yezeMpilo. I-BMS elungileyo ilandelela amandla okuthotywa kwegophe kwibhetri nganye, ilumkisa kwiinyanga ezizayo xa ipakethe isilela. Kungcono kunokulinda isithuthi esifileyo kunye nokujongana nexesha lokuphumla likaxakeka.
Ulawulo lobushushu
Ixesha lokwenyani{0}}lokubeka iliso kwiindawo ezininzi kwipakethi. Amabala ashushu kwangethuba, anciphisa amandla phambi kokuba iingxaki zinyuke.
Unxibelelwano lonxibelelwano
Ibhasi ye-CAN okanye i-RS485 idibanisa nenkqubo yakho yolawulo lwesitora. Ivumela i-WMS ibone imeko yebhetri yemoto nganye.
Ungabizi nge-BMS. Sibone abathengi begcina amakhulu ambalwa eedola kwiiyunithi ze-BMS zohlahlo lwabiwo-mali, emva koko bafumanisa iimpazamo zoqikelelo lwe-SOC enkulu kangangokuba inkqubo yokuthumela ayinakukwazi ukusebenzisa idatha kwaphela. Usenokungabi nalo uphawu.
Iziqinisekiso: AyingoMsebenzi wePhepha nje
Izatifikethi ezimbini zibaluleke kakhulu: UN38.3 kunye ne-IEC 62619.
UN38.3
Ibandakanya ukhuseleko lwezothutho. Uvavanyo lokulinganisa umphakamo, ukukhwela ibhayisekile, ukungcangcazela, ukothuka, ukujikeleza okufutshane, ukutshaja, ukukhupha ngenkani. Kuyimfuneko kuyo nayiphi na ibhetri ye-lithium ewela imida. Hayi UN38.3, iinkampani zolungiselelo aziyi kuyichukumisa.
IEC 62619
Igubungela ukhuseleko lokusetyenziswa kwebhetri ye-lithium kwishishini. Izinto zovavanyo zihambelana ne-UN38.3 kodwa zijolise ngakumbi kwiimeko zokusebenza: ukungena kwezikhonkwane, ukuvavanywa kokulahla, ukuqinisekiswa komsebenzi we-BMS. I-IEC 62619 yenza isiseko sobugcisa sokumakishwa kwe-CE eYurophu, isatifikethi se-AS/NZS e-Australia, imvume ye-PSE eJapan.
Inqaku elibalulekileyo: iziqinisekiso zisebenza kwiimodeli ezithile zemveliso, hayi kubavelisi. Abanye abavelisi baqinisekisa imodeli enye emva koko baqhwabe isatifikethi kuyo yonke into abayithengisayo. Xa uthenga, qinisekisa ukuba inombolo yemodeli yesatifikethi ingqinelana ngqo nale nto uyithengayo. Izatifikethi ezingahambelaniyo azinaxabiso.
Amanqaku oMboneleli
Ezimbalwa esikhe sajongana nazo:
Phakathi kwababoneleli baseTshayina, i-BYD ibambe isabelo esikhulu semakethi kwiibhetri ze-lithium zeforklift zombane, kuxelwe ukuba malunga ne-60% eTshayina. Iibhetri zabo zeblade ziza newaranti yeminyaka eli-10. I-CATL kunye ne-Hangcha zenze i-JV ebizwa ngokuba yi-Pengcheng New Energy ngokukodwa kwi-forklift kunye neebhetri ze-AGV. Ukuba sele usebenzisa iimoto zeHangcha, eso sitishi sinokuba lula.
Phakathi kwababoneleli baseNtshona, uthotho lwe-EnerSys NexSys luqinile. Inkqubo yabo ye-NexSys AIR yokutshaja engenazingcingo ixhasa i-asidi ekhokelayo, i-TPPL, kunye ne-lithium kwisiseko esifanayo. Iluncedo ukuba iinqanawa zakho ziyaguquka ukusuka kwi-asidi ekhokelela kwi-lithium kwaye ufuna ukukhusela utyalo-mali lwakho lwezixhobo zokutshaja.
Imibuzo emayibuzwe xa uvavanya ababoneleli:
Ngowuphi umenzi weseli, leliphi ibakala (A-ibakala okanye B-ibakala)? Ngaba banokubonelela ngedatha yovavanyo lobomi bomjikelezo kwiipakethi, hayi nje iiseli ezingenanto? Ngaba umthamo wokhuseleko lwewaranti uyaphela okanye ukusilela ngokupheleleyo? Bawaphatha njani amabango ewaranti (iibhetri zokuthumela kumazwe ngamazwe zibiza imali eninzi kwaye ziyacotha)?
Iingcamango Zokugqibela
Ukukhetha ibhetri ayisosigqibo{0}}sokuthenga ixesha elinye. Into oyikhethayo namhlanje imisela iindleko zokusebenza kunye nobunzima bokugcinwa kwe-5 ukuya kwiminyaka eyi-10 ezayo. Musa ukujonga nje ixabiso lokuqala lokuthenga. Bala iminyaka emihlanu-i-TCO ngaphambi kokuba wenze isigqibo.
Ukuba uneprojekthi ethile kwimisebenzi kwaye kufuneka uqinisekise ibhetri yakho, thumela ngaphezulu kweeparamitha zokusebenza, uluhlu lohlahlo lwabiwo-mali, iimfuno ezikhethekileyo (ugcino olubandayo, ubungqina bokudubula{0}}, imilinganiselo engaqhelekanga). Sikhe sanyathela ezinye zezi zigcayiseli ngaphambili kwaye sinokukunceda uziphephe.
