Isikhokelo esisecaleni sokufaka kontraka kwizixhobo: iimpawu zokugcwalisa emva ezimisela ukusebenza kwephedi ixesha elide, amaxwebhu amathandathu omthengisi ekufuneka afunwe ngaphambi kokuba akhutshwe, ulandelelwano lwentsimi oluhlala ixesha elide xa kuqaliswa, kunye namaxwebhu akukhuselayo kwi-waranti arbitration.
TL;DR — Uluhlu lokuhlola ngaphambi kokufakwa komenzi-mveliso
- I-backfill yenza umsebenzi wombane, hayi intonga.I-electrode egayiweyo yekhemikhali yi-copper-clad column ngaphakathi kwikholamu ye-hygroscopic backfill. I-backfill yiyo egcina ukumelana kwe-pad kuzinzile ngexesha lokushukuma komswakama wexesha elithile.
- Funa amaxwebhu amathandathu ngaphambi kokuba ukhuphe impahla.Ingxelo yovavanyo lohlobo (ukunciphisa ukumelana noxinzelelo, uzinzo lwe-ionic kwi-60 °C / iintsuku ezingama-30, ukugcinwa komswakama, ukuthobela i-ESIA), ingxelo ye-IEC 62561-7, isiqinisekiso se-NEMA GR-1, ingxelo yesixhumi se-IEEE 837, amanani eqela, isikhokelo sokufaka ngolwimi lwabasebenzi bokufaka.
- Ububanzi be-Auger yeyona nto itshintshayo kakhulu kwicala lokufaka.Kwizinto ezithunyelwe yiShiBang's ME ngo-2020-2025, ii-electrode zokuqala ezingama-200 ezine-auger ye-75 mm zifunde umyinge we-5.8 Ω xa kuthelekiswa nethagethi ye-5 Ω; ezinye ezi-4,000 ezine-auger ye-100 mm zifunde umyinge we-3.1 Ω. I-0.4 Ω delta, ngesandla esinye esivela kumenzi wekontrakta.
- Bhala phantsi yonke into oza kuyidinga kwi-arbitration yewaranti yonyaka wesithathu.Amaxwebhu omthengisi, umzobo owakhiweyo onee-electrode kunye neenombolo zeendawo, iifoto zokufaka, ukufundwa okunokwenzeka xa kuqaliswa umsebenzi. Umntu onikezela ngokufundwa kwephedi kuphela akanakuzikhusela.
Ifreyimu endifuna ukuyiqinisa le nqaku kukuchatshazelwa kwewaranti yomthengisi. Xa i-electrode esemhlabeni yekhemikhali idlula kwifestile ye-touch-voltage kunyaka wesithathu okanye wesine - kwaye ikwenza oko, kwiindawo apho uqeqesho lokufaka belukhululekile - i-EPC kunye nomnini weprojekthi balandelela ukusilela ngekhonkco lewaranti. Umthengisi ofake i-electrode ngumntu onokuthi amkele iindleko zokuphinda asebenze, kuba iwaranti yomthengisi idla ngokungabandakanyi umsebenzi womfaki kwaye irekhodi lomfaki lolona xwebhu kuphela olubonisa ukuba ukufakelwa kuhambelane neenkcukacha. Umthengisi onikezela kuphela ukufundwa kwephedi yokugunyazisa - ngaphandle kwephakheji yamaxwebhu omthengisi, umzobo owakhiweyo, iifoto zokufaka, kunye namanani ebhetshi alandelekayo - akanakuzikhusela ukuba uvavanyo lonyaka wesithathu lubuya ngaphezulu kwethagethi.
Eli nqaku lilingana noxwebhu olukhusela umakhi. Libhalelwe umfaki okhokelayo kunye nomphathi wendawo, kungekhona injineli yokuthenga ye-EPC. Ibali lilandelelwano lokufaka ukususela ngexesha izinto zifika ngalo kwindawo ngexesha lovavanyo olunokwenzeka xa kuqaliswa umsebenzi - kwaye kwinqanaba ngalinye, oko umakhi afanele akufune, ukukurekhoda nokugcina.
1. Oko Kuthethwa Yi-Backfill (Kwaye Kutheni Ibaluleke Ngakumbi Kunentonga)
Uninzi lwabakhi abafaka i-electrode yokusila yekhemikhali okokuqala bayicinga “njengentonga egqunywe lubhedu enomgubo ongwevu ojikelezileyo.” Loo freyimu ayiluqondi kakuhle ubunjineli. I-core egqunywe lubhedu yi-conductor; i-backfill yi-electrical interface. Kwi-electrode yokusila yekhemikhali echazwe ngokuchanekileyo, i-interface yentonga ukuya emhlabeni iziphatha njengomhlaba omalunga ne-200 ukuya kwi-400 Ω·cm nokuba umhlaba ungakanani na — kuba i-backfill ibamba umswakama kumphezulu wentonga kwaye ikhupha kancinci umxholo we-ionic kumthamo womhlaba okhawulezileyo. Ngaphandle kwe-backfill, intonga yintambo esantini echukumisa umoya.
Indawo engasemva ludongwe oludumbayo (oludla ngokuba yi-bentonite, ngamanye amaxesha udongwe olufana nolweminerali) oludityaniswe netyuwa ye-electrolyte (oludla ngokuba yi-magnesium sulfate, alunakuba yi-sodium chloride — i-chloride ihlasela ii-cores ezigqunywe yi-copper-clad nangaphakathi kwi-copper sheath) kunye ne-additi yokugcinwa komswakama. Umgangatho we-IEC 62561-7 yindlela yovavanyo echaza ukuba kuthetha ukuthini "ukucaciswa ngokuchanekileyo" kumanani anokuvavanywa:
| Ipropathi yokuzalisa i-backfill | Oko ikulawulayo kwinkonzo | Umda wokwamkelwa (ngomntu ngamnyeI-IEC 62561-7) |
|---|---|---|
| Isici sokunciphisa ukuxhathisa kwi-reference moisture | Umlinganiselo womhlaba ophakathi ukuya kobuninzi xa kumiselwa | Ukunciphisa kwe-≥ 10:1 kumswakama oqhelekileyo womthengisi |
| Uzinzo lwe-ionic lwexesha elide kwi-60 °C / iintsuku ezingama-30 | Ingaba ikhemistri iyasinda na kwixesha lokuqala lemvula | Ukunciphisa ukumelana noxinzelelo lwe-≥ 80% kugciniwe |
| Ukugcinwa komswakama kumjikelo wokomisa weentsuku ezingama-90 | Ingaba ikhemistri iyasinda na kwixesha lokuqala lonyaka owomileyo | ≥ 60% ukufuma okugcinwe kwi-35 °C / 30% RH |
| Ukuthobela imiqathango yokusingqongileyo kwinqanaba le-ESIA | Ingaba ikhemistri ibangela iflegi yomhlaba xa inikezelwa | Ngaphantsi komlinganiselo we-leachate yesinyithi esilawulwayo (i-TCLP-equivalent) |
2. Amaxwebhu amathandathu uKontraka afanele awafune ngaphambi kokuba akhuphe impahla
Ngaphambi kokuba izinto ziphume elorini, umakhi uneempepha ezintandathu esandleni. Nantoni na engekhoyo ibuyiselwa kwakhona okanye ibuyiselwa imali; umhla umakhi awuchitha ecela amaxwebhu eofisini ubiza kancinci kunomhla umakhi awuchitha elungisa ukufakela kamva.
| Uxwebhu | Kutheni ikhontraktha iyidinga | Apho ibonakala khona kwifayile yewaranti |
|---|---|---|
| (1) Ingxelo yovavanyo lweentlobo ezine zepropathi | Ubungqina bokuba iikhemikhali ziyahambelanaI-IEC 62561-7uxwebhu olulodwa olukhusela umntu oza kuthengisa xa i-pad ikhukuliseka kunyaka wesithathu | Ifayile yewaranti, iphepha 1 |
| (2) Ingxelo yokuthobela imithetho ye-IEC 62561-7 | Isalathiso somgca omnye kwindlela yovavanyo; sijongiwe ngokuchasene nengxelo yovavanyo lohlobo | Ifayile yewaranti, iphepha lesi-2 |
| (3)I-NEMA GR-1isatifikethi esinobukhulu | Iqinisekisa ububanzi obuyi-±0.1 mm bobukhulu obuqhelekileyo, ubhedu obuyi-≥254 µm, ukuthe tye ≤1 mm kwi-300 mm nganye | Ifayile yewaranti, iphepha lesi-3 |
| (4)IEEE 837ingxelo yokuhambelana kwesixhumi | Iqinisekisa ukuba uhlobo lwesixhumi luhambelana nomthwalo we-impulse-current; ii-clamps zoomatshini azivumelekanga | Ifayile yewaranti, iphepha lesi-4 |
| (5) Amanani eebhetshi alandelelwa yiLot | Intonga nganye kunye nebhegi nganye egcwalisayo inenombolo yebhetshi; nantsi into ebaluleke kakhulu kwibango lewaranti. | Ifayile yewaranti, iphepha lesi-5 (yaza yafakwa isitampu kuyo yonke intonga ekwisakhiwo esakhiweyo) |
| (6) Isikhokelo sokufaka ngolwimi lwabasebenzi bokufaka | Ububanzi be-Auger, ubungakanani be-backfill ngomngxuma ngamnye, i-inspection-pit geometry — zonke zichazwe njengamanani, kungekhona izichazi | Ifayile yewaranti, iphepha 6 |
Kwicala lomthengisi, iphakheji yamaxwebhu ayinyanzelekanga — yiyo eyahlula umthengisi we-electrode yomhlaba othembekileyo kwi-generic rod-and-clamp reseller. I-ShiBang ithumela iphakheji yamaxwebhu amathandathu enayo yonkei-electrode yokucoca umhlaba yekhemikhaliukuthunyelwa, kwaye iphinda ikhuphe ingxelo yovavanyo lohlobo kwibhetshi nganye. Isiganeko somthengisi-ibhetshi sika-2022 kumzi-mveliso wethu — iisampulu ezili-12 kwezingama-38 eziye zawa kwi-60 °C / uvavanyo lweentsuku ezingama-30 lwe-ionic-stability kugcino lwama-65%, ngaphantsi komda wama-80% — zibanjwe kwi-Q3 ngaphambi kokuthunyelwa. Umenzi wekontraka ofumana ingxelo yovavanyo lohlobo aze abone inombolo yebhetshi kuyo unomkhondo wokuhlolwa.
3. Uqeqesho lwe-Auger-Diameter — Eyona Nto iFakelwayo iLuhlu olukhulu
Kwiinguqu ezilawulwa ngumakhi kwi-electrode esemhlabeni yekhemikhali, ububanzi be-auger yeyona inkulu. Ukuthunyelwa kwe-ME kweShiBang ngo-2020-2025 kunedatha yokubeka inombolo kuyo. Kwii-electrode zokuqala ezingama-200 zokuthunyelwa kwe-electrode ezingama-4,200 kwindawo yaseSaudi, injineli yendawo ye-EPC isebenzise i-auger engama-75 mm - i-auger efanayo naleyo yayisetyenziswe kwiprojekthi yangaphambili ye-driven-rod. Ukufundwa kwentsimi kubuye kwi-avareji ye-5.8 Ω xa kuthelekiswa nethagethi ye-5 Ω. Sitshintshele kwi-auger eyi-100 mm kwii-electrode ezisele ezingama-4,000 kwaye umyinge wehla waya kwi-3.1 Ω. Umahluko we-0.4 Ω yeyona variable inkulu yokufaka kwicala elinye kwi-electrode yekhemikhali - kwaye yinguqu elawulwa ngumakhi, hayi ngumzi-mveliso.
| Ububanzi bentonga | Ububanzi obuncinci be-auger | Ngoba |
|---|---|---|
| Umbindi ogqunywe ngobhedu oyi-17.2 mm | 100 mm | Ngaphantsi kwe-100 mm, i-annulus ye-backfill ayifumani manzi ngokufanelekileyo. |
| Umbindi ogqunywe ngobhedu oyi-25.4 mm (okanyeintonga yomhlaba ye-ion ye-electrolytic) | 150 mm | I-geometry enzima egqunywe ngobhedu ifuna i-annulus ebanzi ukuze ihlale ikholamu yokugcwalisa umva. |
| Imodyuli yomhlaba(ufakelo oluthe tye) | Umngxuma ombiweyo kubunzulu obucwangcisiweyo, ubekwe imodyuli, ugcwaliswe kwakhona kwaye uxineneyo | Ukufakwa ngokuthe tye — akukho sixhobo sokutsala; ubungakanani bomngxuma ngesikhokelo sokufaka somthengisi. |
4. Ulandelelwano Lokufaka Oluhlala Lusebenza Xa Kuqaliswa
Ulandelelwano lokufakela olungezantsi lolo iqela lenkxaso yokuthumela ngaphandle leShiBang elihamba nalo umphathi wesiza kuyo yonke imithwalo ye-ME, i-Afrika kunye ne-SEA. Lulandelelwano olufanayo kwi-electrode yomhlaba yekhemikhali eyi-17.2 mm, kwinduku yomhlaba ye-electrolytic ion eyi-25.4 mm, nakwimodyuli yomhlaba yekholamu yegrafiti. Ulandelelwano lubhalwe phantsi ngomngxuma ngamnye kumzobo owakhiweyo, kwaye iifoto ezithathwe kwinqanaba ngalinye zifakwa kwiphakheji yewaranti.
- Gquma umngxuma ube nobubanzi obufanelekileyo.Sebenzisa i-auger ethe nkqo enobubanzi obuchazwe ngumthengisi. I-auger ifikelele kubunzulu obucwangcisiweyo kunye ne-50 ukuya kwi-100 mm eyongezelelweyo kumgangatho womngxuma wokuhlola. Kuphephe ukufaka emanzini amileyo - ixesha lokoma leentsuku ezili-14 ngaphambi kokufakwa ngumthetho oqhelekileyo kwiindawo ezomileyo.
- Beka intonga kunye ne-backfill kumsebenzi omnye.Yehlisa intonga emngxunyeni ofakwe i-augered. Gcwalisa i-annulus nge-hygroscopic backfill compound yomenzi ngaphambi kokuba uyivale umngxuma wokuhlola. Musa ukuxuba i-backfill nomhlaba wendalo. Musa ukuyizalisa kancinci uze ubuye ngosuku olulandelayo. Musa ukuyivumela i-hole ihlale ivulekile ubusuku bonke. Ngayinye kwezi zinto idala isithuba esingaphantsi komhlaba okanye ikholamu yokuzalisa engcolileyo yomhlaba eya kubonakala ngoko nangoko kufundo lwentsimi kwaye uvavanyo oluphindweyo lonyaka wesithathu luya kuqinisekisa.
- Qhagamshelana neIEEE 837-isixhumi esidwelisiweyo.Isixhumi esidityaniswe nge-exothermic okanye uhlobo lokucinezelwa, asiyo-mechanical clamp. Ii-mechanical clamps ziyasilela kuvavanyo lwe-impulse-current kwi-IEC 62561-1 kwaye zezona zixhaphakileyo kwi-first-failure mode phantsi kombane. Bhala uhlobo lwesixhumi, inombolo yelothi, kunye nexabiso le-torque kumzobo owakhiweyo.
- Qinisekisa ngovavanyo olunokwenzeka (ngokosapho lwendlela ye-IEEE 81).Bhala phantsi ukumelana, ubushushu bomhlaba, kunye nokufundwa kokufuma. Fota umngxuma wokuhlola, uqhagamshelo olukhoyo, kunye neendawo zokuhlola ezinokubakho. Amaxwebhu amane adibeneyo — ingxelo yovavanyo lohlobo, umzobo okhoyo, iifoto zokufaka, ukufundwa okunokwenzeka okunokubakho — ziifayile zokukhusela iwaranti.
5. Okufanele Ukwenze Xa Ukufundwa Komyalelo Kubi
Ukufundwa kakubi kokugunyaziswa akuqhelekanga. Eyona nto ixhaphakileyo ayisiyokhemikhali okanye intonga - kukufakelwa. Umenzi wekontrakta kufuneka enze uhlolo oluthathu ngaphambi kokuba aphinde asebenze.
- Qinisekisa iindawo zokuphanda ezinokwenzeka.Iprobe ebekwe kufutshane kakhulu ne-electrode ayifundi kakuhle ukumelana kwayo; iprobe ebekwe kude kakhulu iyifunda ngaphezu kwayo. I-geometry echanekileyo ngumthetho we-61.8% (iprobe iphindwe kayi-0.618 kumgama we-electrode ukuya kwi-assixiliary).
- Phinda ulinganise ngesixhobo esahlukileyo.Impazamo yesixhobo ixhaphake kakhulu kunempazamo yomqhubi. Isixhobo sesibini kwi-electrode efanayo siya kusombulula uninzi lweefowuni ezithi "ukufundwa kubonakala kungalunganga" kwimizuzu elishumi.
- Jonga umngxuma wokuhlola ukuba awunamanzi amileyo na.Umngxuma ozele ngamanzi ubonakala ungathinteli kakhulu kwimitha kodwa ufunda ukuba awunamandla kakhulu xa womile. Umlinganiselo owulinganisayo awungomlinganiselo oza kulinganiswa yi-EPC xa uphinda uvavanywa.
Ukuba zonke ezi zintathu iitshekhi ziyaphumelela kwaye ufundo lusengaphezulu kwethagethi, iindlela zokulungisa zezi:
- Ii-electrode eziphindwe kabini ze-delta-pattern— yongeza intonga enye kwindawo efanayo, iimitha ezimbini ukusuka kwindawo yokuqala, edityaniswe nge-exothermically ukuya kwi-conductor yokuqala. Ukumelana ne-pad okusebenzayo kwehla malunga ne-40%.
- Imodyuli yomhlaba ngaxeshanye— beka imodyuli yegrafiti yekholamu kwindawo ethe tyaba ecaleni kwe-electrode yokuqala. Ukumelana okusebenzayo kwephedi kwehla ngama-30 ukuya kuma-50% kuxhomekeke kubungakanani bemodyuli kunye nebhendi yomhlaba.
- I-electrode eyongezelelweyo kwi-3× ubunzulu bokuqala— kuphela apho iprofayili yomhlaba ivumela khona (akukho caliche kwindawo ekujoliswe kuyo enzulu). Izikali zokumelana namaphedi ezisebenzayo ngobunzulu, kodwa ukufakelwa kubiza ngokukhawuleza.
Zonke ezi ndlela zintathu zifuna ukufundwa okuhlaziyiweyo ngaphambi kokuba uhlengahlengiso luzaliseke. Umenzi wekontraka ozalisa kwakhona kuqala aze afunde kamva akanalo uxwebhu ukuba uhlengahlengiso aluphumelelanga.
6. Ukuvala — Apho Uxwebhu Lokufaka Luya Khona
Ifayile yokhuselo lwewaranti yomthengisi inamacandelo amane: (1) iphakheji yamaxwebhu omthengisi (amaxwebhu amathandathu); (2) umzobo owenziweyo onendawo ze-electrode, ububanzi be-auger, ubungakanani be-backfill, iintlobo ze-connector, amanani e-lot kunye namaxabiso e-torque; (3) iifoto ze-install-step (i-augered pit, intonga engaphakathi kwi-pit, i-backfill pour, i-sealed i-survey pit, i-finished connection); (4) ukufundwa okunokwenzeka xa kuqaliswa ubushushu bomhlaba kunye nokufuma. La macandelo mane kunye yiloo nto i-contractor eyinika i-EPC kunye nomnini weprojekthi xa kugqitywa iprojekthi.
Icala lomthengisi kwesi sivumelwano lixanduva lomenzi. IShiBang ithumela iphakheji enamaxwebhu amathandathu enayo yonkei-electrode yokucoca umhlaba yekhemikhaliukuthunyelwa kunye nokuphinda kukhutshwe ingxelo yovavanyo lohlobo kwibhetshi nganye. Isikhokelo sokufaka singesiNgesi, isiFrentshi, isiJamani, iSpanish, isiRashiya, isiArabhu kunye nesiJapan — iilwimi zamaqela okufaka kwiimarike zokuthumela ngaphandle apho umsantsa wamaxwebhu ungowona mkhulu. Kwipakethi yesampulu enepakethi yamaxwebhu amathandathu eqhotyoshelwe kwangaphambili, indlela ekhawulezayo yiiphepha lokunxibelelana nathiIisampuli zokuthunyelwa kweeprojekthi ze-PV ezisetyenziswa kakhulu e-ME, e-Afrika nase-SEA ziphuma kumzi-mveliso zingadlulanga iveki enye, kwaye iimpendulo zobugcisa zingakapheli usuku olunye lokusebenza.
Ixesha lokuthumela: Okthobha-01-2026