Pamene kukana kwa nthaka kukwera kupitirira mamita mazana angapo a ohm, electrode yothira mankhwala nthawi zambiri imafika pa kukana komwe kukufunika ndi gawo limodzi kapena awiri pomwe ndodo yachikhalidwe imafunikira gawo lonse la iwo - koma m'nthaka wamba pansi pa 100 Ω·m, ndodo yachikhalidwe yokhala ndi mkuwa imakhalabe yankho losavuta komanso lotsika mtengo. Ndakhala zaka khumi ndi ziwiri ndikutumiza zinthu zonse ziwiri kuchokera ku fakitale yathu ya Xinchang, ndipo mawonekedwe omwe ali m'mbiri yathu ya oda ndi ofanana kwambiri: mainjiniya a polojekiti amabwera kwa ife pambuyo poti ndodo yachikhalidwe yalephera mayeso ake ovomerezeka m'nthaka yamiyala, yamchenga, kapena yomwe imakonda chilala. Electrode yamankhwala imagwira ntchitochifukwaSichidalira nthaka yokha - pang'onopang'ono imatulutsa ma ayoni oyendetsera mpweya m'malo ozungulira, kuchepetsa mphamvu ya resistivity ya komweko ndikusunga kukhazikika kwa kuwerenga m'nyengo zamvula ndi zouma. Ndodo yachikhalidwe, mosiyana, imagwira ntchito bwino kwambiri ngati nthaka yomwe mumayiyikamo. Nkhaniyi ndi kuyerekeza komwe ndimayendera makontrakitala a EPC asanatchule chilichonse, pogwiritsa ntchito magawo enieni a dongosolo lathu la AF-0200 chemical earthing system ndi ndodo ya AF-0232 yokhala ndi mkuwa m'malo mwa malonjezo a brochure.
- Mu nthaka yolimba kwambiri (ya miyala, yamchenga, komanso youma), electrode imodzi ya mankhwala nthawi zambiri imalowa m'malo mwa gulu la ndodo zambiri,chifukwaNjira yake yotulutsira ma ion ndi hygroscopic backfill zimachepetsa njira yothandiza yolimbana ndi ma ion m'malo mongowonjezera mozama.
- Ndodo yachikhalidwe yokhala ndi mkuwa (AF-0232 yathu: 14.2–25 mm m'mimba mwake, 1.2–3.0 m kutalika, ≥0.254 mm wosanjikiza wa mkuwa pamwamba pa 99.95% cladding yoyera) ndi chida choyenera chomwe kukana kwa nthaka kumakhala kocheperako ndipo kuya kwake sikuli koletsedwa.
- Kuchita bwino kwa mankhwala m'nthaka kumakhala kosalala nthawi zonse,chifukwaKumwa madzi ndi kusinthana kwa ayoni m'malo osungira madzi kumateteza kusintha kwa chinyezi komwe kumawonjezera kuwerengera kwa ndodo m'miyezi youma.
- Palibe chilichonse mwa zinthuzi chomwe chimapangitsa kuti nthaka isafufuzidwe molakwika: Ndikupempha gulu lililonse la polojekiti kuti lindipatse muyeso wotsimikizira kukana kwa Wenner paASTM G57tisanapereke malangizo a electrode iliyonse.
Dothi Lolimba Kwambiri: N’chifukwa Chiyani Limaphwanya Mapangidwe Achikhalidwe Okhazikika?
Kukana kwa nthaka kwa ndodo imodzi yoyima kumayendetsedwa ndi ubale wosavuta komanso wonyenga: kukana kumakula molingana ndi kukana kwa nthaka komanso molingana ndi kukula kwa ndodo. Kusagwirizana kumeneko ndiye vuto lonse.Chifukwa mphamvu yamagetsi imafalikira kudzera mu kuchuluka kwa nthaka m'malo modutsa mu ndodo yokha, kuwirikiza kawiri kutalika kwa ndodo imodzi kuyambira 1.5 m mpaka 3.0 m kumawonjezera kuwerenga kwake, koma kuwirikiza kawiri kukula kwake sikumagula zambiri. Tikalumikiza kukana kwa malo amiyala a 800 Ω·m mu njira yokhazikika ya ndodo imodzi, ngakhale ndodo yonse ya 3 mkuwa yokhala ndi bond imabwerera ndi kuwerenga komwe sikukwaniritsa zofunikira zambiri zovomerezeka zoteteza mphezi - ndipo sindinakumanepo ndi gulu la malo omwe amasangalala kulumikizana ndikuyendetsa ndodo khumi pomwe zojambulazo zidatenga ziwiri.
Kuthawa kwachikhalidwe kumasiyana malinga ndi mphamvu yankhanza: kuyendetsa mozama, kuyendetsa ndodo zambiri, kapena ngalande m'ma conductors ataliatali opingasa. Chilichonse chimagwira ntchito mpaka malowo atabwerera m'mbuyo. Mashelufu a miyala amaletsa ndodo pakati pa kuya. Malo okhala ndi mipanda yolimba - mkhalidwe wachiwiri womwe ma electrode athu adapangidwira - alibe malo okwanira kuti agwire ndodo yayikulu. Ndipo m'madera ouma, kuwerenga komwe kumachitika nthawi yamvula kumakwera mmwamba nthaka ikauma, ndichifukwa chake makasitomala athu ku Middle East ndi Central Asia amaona kukhazikika kwa nyengo ngati njira yabwino kwambiri, osati yongoganizira.
Kuwerenga Kukana Kuchokera Kumunda: Kodi Zimasintha Bwanji Pamene Electrode Ikudyetsa Nthaka?
Ma electrode oyambitsa mankhwala amasokoneza njira yachizolowezi. Chida chathu cha AF-0200 ndi chubu cholimba cha alloy chosagwira dzimbiri — chokhala ndi mkuwa mu kapangidwe kake kokhazikika — chomwe chimakhala ndi ionic medium ndipo chimakhala mkati mwa zinthu zakuthupi zomwe zimasankhidwa kuti zilowe m'madzi, zilowe m'madzi ndi kusinthana kwa ma ion. Pakapita nthawi, electrode imatulutsa ma ion oyendetsera mpweya m'nthaka yozungulira, zomwe zimachepetsa pang'onopang'ono kukana kwa gawo limodzi lomwe ndi lofunika kwambiri: nthaka yozungulira electrode komwe kukana kumachitika. Timafotokozera makasitomala njira ngati "kuchiza matenda osati chizindikiro,"chifukwaelectrode imakonza malo a kondakitala m'malo mopempha zitsulo zambiri kuti zithane ndi chidani.
Makhalidwe atatu a m'munda amatsatira kuchokera ku njira imeneyo, ndipo ndi omwe ndimawatchula muzolemba zaukadaulo. Choyamba, kukana koyezedwa kumakhala kosasintha pakati pa nyengo yamvula ndi youma - malo osungira madzi amasunga chinyezi ndikuteteza kugwedezeka komwe ndodo yopanda kanthu imamva kwathunthu. Chachiwiri, malo osungira madzi amachepa kwambiri: gawo limodzi loyima lokhala ndi mzere wake wosungira madzi limakhala gawo laling'ono la dera lofanana ndi ndodo, ndichifukwa chake buku lathu lolemera kwambiri la malonda awa limachokera ku malo osungira madzi amzinda ndi malo omangira mafakitale okhala ndi nyumba zambiri. Chachitatu, kukonza kumatsika kufika pa zero - palibe njira yothirira madzi ndipo palibe kukonzanso nthawi ndi nthawi mu ntchito yanthawi zonse, ndipo kapangidwe ka alloy kamathandizira moyo wautumiki wa zaka 50 kapena kuposerapo muzofotokozera zathu zopangira.
Komabe, ndikufuna kunena zoona za malire,chifukwaKulonjeza kwambiri izi ndi momwe mapulojekiti amathera ndi mayeso ovomerezedwa okanidwa. Electrode ya mankhwala si matsenga: imatsatirabe fizikisi yomweyo, ndipo kukana kwake komaliza kumadalirabe nthaka yochuluka yomwe ili kupitirira malo okonzedwa. Mu nthaka yolimba kwambiri imatenga chandamale kuchokera ku "zosatheka popanda famu ya ndodo" mpaka "mayunitsi amodzi kapena awiri ndi muyeso wotsimikizika" - zomwe kwenikweni ndi kusiyana pakati pa kapangidwe ka nthaka komwe kakugwirizana ndi komwe sikukugwirizana ndi komweko. Ichi ndichifukwa chake gawo lomaliza la kukhazikitsa kulikonse komwe timathandizira ndi mayeso oyezedwa a kugwa kwa kuthekera, osati lingaliro la mapepala.
Electrode ya Mankhwala kapena Ndodo Yachizolowezi: Ndi iti yomwe imapambana pa Miyeso Isanu ndi umodzi yomwe ndi yofunika?
Pamene kontrakitala wa EPC atitumizira BOQ yoyambira, timalemba zonse ziwiri motsutsana ndi miyeso isanu ndi umodzi yomweyi tisanatchule mawu. Gome ili pansipa ndi kufananiza kumeneko, ndi magawo ochokera kuzinthu zathu zopangira - osati mitundu yonse yamakampani. Palibe mzere uliwonse womwe ndi "wabwino" mwachidule; uliwonse umapambana miyeso yomwe fizikisi yake imapambana.
| Kukula | Electrode Yogunda ya Mankhwala (AF-0200 yathu) | Ndodo Yachizolowezi Yolumikizidwa ndi Mkuwa (AF-0232 yathu) | Kutanthauzira kwa M'munda |
|---|---|---|---|
| Njira yogwirira ntchito | Kutulutsidwa kwa ayoni mu hygroscopic backfill kumachepetsa kukana kwa nthaka m'deralo | Ma electrode achitsulo amafalikira m'nthaka yachilengedwe monga momwe zapezekera | Mankhwala amachiritsa nthaka; njira zachikhalidwe zimadalira pa izo |
| Kugwira ntchito bwino kwambiri | Imafika pamlingo wotsika kwambiri ndi mayunitsi 1-2 m'nthaka ya miyala/mchenga/youma | Kawirikawiri imafunika kubowola kwa ndodo zambiri kapena kubowola mozama kuti ifike pamlingo womwewo | Mankhwala amapambana mwamphamvu kuposa Ω·m mazana angapo |
| Kukhazikika kwa nyengo | Kukana kunyowa mpaka kuuma; kubwezeretsanso chinyezi kumateteza ku kugwedezeka kwa chinyezi | Kuwerenga kumakwera pamene nthaka ya pamwamba iuma; ndodo zakuya zimachepa pang'ono | Mankhwala amapambana m'nyengo zouma komanso zamvula |
| Chizindikiro ndi kuyika | Chigawo chimodzi choyima + mzati wodzaza; kufukula kochepa, palibe malo akuluakulu a ndodo | Ndodo zoyendetsedwa ndi mainchesi 14.2–25 mm, 1.2–3.0 m, 10 pcs/PVC bundle; ma arrays amafunika malo | Kupambana kwa mankhwala pa malo ouma a m'mizinda; kupambana kwachikhalidwe pa malo otseguka |
| Moyo wautumiki ndi miyezo | Zaka ≥50, aloyi yosagwira dzimbiri; mphero ya ISO 9001; mankhwala ogwirizana ndiIEC 62561-7malingaliro oyesera | Zaka ≥50; ≥0.254 mm wosanjikiza wa mkuwa, >99.95% kuphimba koyera pamwamba pa chitsulo chopanda mpweya wambiri | Zonsezi ndi katundu wokhalitsa; zikalata zimasiyana malinga ndi banja lokhazikika |
| Kupereka ndi mayendedwe | Kuchuluka kwa ma PC 10,000–50,000 pamwezi; Chubu chimodzi/PVC, machubu 10/bokosi lamatabwa; Madoko a Ningbo/Shanghai | Ma PC 50,000 pamwezi; Ma PC 10 pa paketi, Ma phukusi 20–50 pa paketi; Madoko a Ningbo/Shanghai | Zonse ziwiri zimatumiza chidebe chachikulu; mayunitsi a mankhwala amanyamula zolemera kwambiri pa chidutswa chilichonse |
Werengani mzere wachitatu kawiri ngati polojekiti yanu ili mu nyengo yamvula kapena chipululu,chifukwaKusintha kwa nyengo ndi gawo lomwe nthawi zambiri limasandutsa mayeso oyambitsa omwe adapambana kukhala mayeso olephera kukonza patatha zaka ziwiri. Makasitomala athu adasankha ndodo zachikhalidwe kuti asunge ndalama zoyambira, koma kenako n’kubweza zida zamankhwala pambuyo poyesanso koyamba kwa nyengo youma - njira yomwe ndikuchenjeza tsopano mu kuyimba koyamba kwaukadaulo m'malo mwa yachitatu. Pamapangidwe a malo osinthira magetsi ndi oteteza mphezi omwe amalamulidwa ndiIEEE Std 80 or NFPA 780, muyezo wovomerezeka ndi mtengo woyezedwa pakuperekedwa ndi nthawi yonse ya moyo, kotero electrode yomwe imasunga kuwerenga kwake ndi electrode yomwe imasunga satifiketi.
Zoona Zokhazikitsa: Kodi Ogwira Ntchito Anu Angapangedi Zomwe Zojambulazo Zikutanthauza?
Zojambulazo zimasonyeza kuti nthaka ikuyenda bwino. Ogwira ntchito amadziwa bwino. Kukhazikitsa ndodo yachikhalidwe kumakhala kosavuta kwambiri ngati nthaka ikugwirizana: kuyendetsa, kukanikiza, kuyeza, kusuntha. Ndodo zathu za AF-0232 zimatumiza 10 ku PVC bundle ndi 20-50 bundles ku pallet molondola.chifukwaKuyika voliyumu ndi nkhani yachibadwa. Koma kuphweka komweko kumakhala vuto nthawi yomwe shelufu ya miyala ikuwonekera pa 1.2 m, kapena malire a ploti sasiya malo okonzera zinthu monga momwe kuwerengera kumafunira. Ndawunikanso zithunzi za pulojekitiyi pomwe ndodo zolumikizidwa zinapindika m'mbali mwa nyundo chifukwa zojambulazo sizinayembekezere kukana - si vuto la ntchito, koma vuto la specifications.
Ma electrode a mankhwala amagwira ntchito yoyendetsa ndi kukumba. Ogwira ntchito amakumba chitsime chimodzi choyima, amaika chipangizocho m'malo mwake, amalumikiza chingwecho ku gridi, ndikuchiyika m'magawo. Ndi ntchito ya boma pa mfundo iliyonse, ndipo ndikunena momveka bwino m'mawu ogwidwa - koma chimalowa m'malo mwa ma drive asanu kapena khumi okanidwa ndi ndodo imodzi yoyendetsedwa.Chifukwa chakuti mzere wosungira madzi kumbuyo umapanga malo otsika otetezera madzi m'malo mosaka mozama, dzenje limodzi limagwira ntchito ngati munda wa ndodo.Pazokonzanso zoteteza mphezi mkati mwa malo ogwirira ntchito, komwe mawindo okumba amayesedwa ndi maola ambiri, kuyika malo amodzi nthawi zambiri ndiye njira yokhayo yomwe malowo angavomereze.
Kusamalira Kwazaka Zoposa 50: Kodi Ubwino wa Mankhwala Umapulumuka Ndalama Yokonzera?
Zinthu zonsezi zimatchulidwa kuti zimatha kugwira ntchito kwa zaka 50 kapena kuposerapo mu deta yathu yopangira, kotero kusiyana si kutalika kwa nthawi - ndi zomwe zimachitika pa kuwerenga kwa njirayo. Kukana kwa ndodo yachikhalidwe kumakhala ngati chikole cha chinyezi cha nthaka, ndipo m'nyengo youma kapena yamvula, gulu lokonza limalandira udindo woyesanso nyengo, nthawi zina kuthirira, komanso kupeza nthawi ndi nthawi kuti gridi siikukwaniritsanso kufunika kwake. Malo okonzedwa ndi electrode ya mankhwala amasunga kukana kwake mokhazikika, zomwe zimapangitsa kuti kuwonekera kobwerezabwereza kokonzansoko kukhale kutsimikizira nthawi ndi nthawi m'malo mokonzanso mobwerezabwereza.ChifukwaKusinthana kwa ma ion a backfill ndi kusunga madzi kumathandizira kuletsa, ma electrode safunsa chilichonse kwa ogwira ntchito yokonza omwe akugwira ntchito bwino.
Chenjezo limodzi lomwe ndili nalo mu gawo lililonse loperekedwa,chifukwaZimatiteteza tonse awiri: chinthu chilichonse chowonjezera nthaka chiyenera kukhala choyera komanso chotetezeka ku dzimbiri pa zitsulo zobisika pafupi. Ndicho chimene chimaterodiIEC 62561-7mayeso a — leaching, kuchuluka kwa sulfure, resistivity, pH ndi khalidwe la dzimbiri — ndipo ndi banja lokhazikika lomwe kapangidwe kathu ka compound kamagwirizana nalo. Ngati wogulitsa sangathe kukuuzani momwe backfill yawo imachitira mu leaching test, chete chimenecho ndiye yankho lanu. Ndingakonde kufotokozera kasitomala lipoti la mayeso kusiyana ndi kudzera mu remediation.
Kodi Muyenera Kusankha Motani Electrode Yoyenera? Njira Yosankhira Yosankhira Yosankhira Yosankhira Yosankhira
Nayi ndondomeko yomwe gulu lathu la mainjiniya limayendera ndi mainjiniya a mapulojekiti, motsatira ndondomeko yomwe timayendetsa:
- Yesani nthaka kaye.Pangani kafukufuku wa Wenner wa ma electrode anayi paASTM G57pamalo enieni, pa malo angapo — mtengo wobwereka woteteza kuchokera ku chithunzi chapafupi ndi momwe ma gridi olephera amayambira.
- Konzani kukana kwa chandamale ndi maziko ake.Chitetezo cha mphezi, chitetezo cha malo osungiramo zinthu pa IEEE 80, ndi kuyika pansi pa zida zimakhala ndi zolinga zosiyanasiyana; lembani nambala ndi muyezo wake muzofotokozera.
- Yesani kapangidwe kake kachikhalidwe moona mtima.Konzani mzere wa ndodo womwe malo ake amalola; ngati wafika pamalo omwe mukufuna ndi malire a resistivity yoyezedwa, tchulani ndodo zathu zokhala ndi mkuwa ndikusunga mayunitsi a mankhwala kuti akagwiritsidwe ntchito.
- Pitani ku ma electrode a mankhwala pomwe chitsanzocho chalephera.Kulimba kwambiri, miyala yomwe imakonda kukana, nthaka yomwe imakonda chilala, kapena malo omwe sakugwirizana ndi malo ozungulira - chilichonse mwa izi ndi chifukwa chokwanira,chifukwachilichonse chimagonjetsa lingaliro lalikulu la kapangidwe kachikhalidwe.
- Tsekani ndi chitsimikiziro choyezedwa.Kuyesa kotsika kwa kuthekera popereka, ndipo zotsatira zake zalembedwa motsutsana ndi cholinga - satifiketiyo imakhazikika pa muyeso, osati pa pepala la deta la malonda.
Pa mapulojekiti omwe amatchula njira ya mankhwala,makina opangira mankhwala(AF-0200) imatumizidwa ngati gawo lathunthu ndi ionic medium yake ndi lead yolumikizira, komanso yodziyimira payokhaelectrode yoyambira mankhwalaTsambali likuwonetsa kasinthidwe ka kutumiza kunja; banja lonse lili pansi pagulu la ma electrode oyambira mankhwalaPamene kafukufukuyu akunena kuti zinthu zachizolowezi ndizokwanira,ndodo yophwanyika yokhala ndi mkuwa(AF-0232) imakwirira mainchesi kuyambira 14.2 mm mpaka 25 mm m'litali mpaka 3.0 m. Ngati mukujambulabe malo a ogulitsa a banja la zinthuzi, chidule chathu chakale cha nkhani yaopanga ndodo za electrolytic ion ground rod za 2025ikusonyeza momwe timaonera gawo la mpikisano — lolembedwa, tikukhulupirira, moona mtima ngati fakitale yomwe imadziwa opikisana nawo ndi mayina awo.
Mafunso Ofunsidwa Kawirikawiri: Zimene Akatswiri a Pulojekiti Amatifunsa Tisanatchule Ma Electrode a Mankhwala
Kodi ndi pa mphamvu yotani yomwe tiyenera kusintha kuchoka pa ndodo kupita ku ma electrode a mankhwala?
Palibe malire a dziko lonse, chifukwa yankho limadalira kukana kwanu, malo omwe alipo komanso kuya koyendetsedwa. Monga lamulo logwira ntchito kuchokera ku zomwe takumana nazo mu polojekiti yathu: pansi pa 100 Ω·m, ndodo zachikhalidwe nthawi zambiri zimakumana ndi cholingacho mosavuta; pakati pa 100 ndi 500 Ω·m, gulu lachikhalidwe limayamba kukula ndipo chosakanikirana chimakhala choyenera kupangidwa; pamwamba pake, kapena kulikonse komwe kuya koyendetsa kukakanidwa ndi miyala, ma electrode a mankhwala amakhala okhazikika. Titumizireni kafukufuku wanu wa Wenner ndipo tidzapanga chitsanzo chonse.
Kodi ntchito ya mankhwala yopangira nthaka imagwira ntchito bwino nthawi yachilimwe?
Inde, ndipo chifukwa chake ndi njira imeneyi. Chomera chosungira madzi chimasankhidwa kuti chizimwa madzi, kulowetsedwa ndi kusinthana kwa ayoni, kotero chimasunga chinyezi ndikuletsa kugwedezeka kwa nthaka yopanda kanthu. Makasitomala athu m'madera ouma amatchula chinthucho makamaka kuti chikhale chokhazikika nyengo ino; kuwerenga koyambira ndi kuwerenga koyesedwanso nyengo yachilimwe kumakhala pafupi nthawi zonse.
Kodi mankhwala opangidwa ndi mankhwalawo adzawononga zitsulo zathu zomwe zili m'manda kale?
Chosakaniza chowonjezera nthaka chopangidwa bwino sichiyenera, ndipo izi ndi zomwe IEC 62561-7 imayesa: khalidwe la leaching, kuchuluka kwa sulfure, resistivity, pH ndi corrosion load. Kapangidwe kathu kamagwirizana ndi mfundo yoyesera. Poyerekeza ogulitsa, funsani momwe chosakanizacho chimachitira poyerekeza ndi zinthu zoyeserazo m'malo monena kuti "sichiwononga".
Kodi malo osinthira magetsi nthawi zambiri amafunikira ma electrode angati a mankhwala?
Zimatengera kukana kwa nthaka komwe kwayesedwa, mtengo wake, ndi kapangidwe ka gridi — gawo limodzi pa mfundo yofunika kwambiri ndi lofala, ndipo awiri kapena kuposerapo pa malo akuluakulu kapena oposerapo oposerapo. Timawerengera kuchuluka kuchokera ku deta yanu ya kafukufuku wa Wenner m'malo motchula lamulo la dera lililonse, chifukwa kusinthasintha kwa nthaka kumapangitsa kuti malamulo a dera akhale osadalirika.
Kodi ma electrode a mankhwala ndi ndodo zachizolowezi zingasakanizidwe mu gridi imodzi?
Inde, ndipo mapangidwe a hybrid ndi ofala: ndodo zachikhalidwe komwe nthaka imagwirizana, ma electrode a mankhwala pamalo pomwe chitsanzo cha array chimalephera kapena malo amatha. Awiriwa amalumikizana ndi dongosolo lofanana la grid conductor, ndipo nthawi zambiri timatumiza zinthu zonse ziwiri motsatira dongosolo limodzi logwirizana pachifukwa ichi.
Kodi kulongedza katundu ndi nthawi yoti katundu atumizidwe kunja ndi ziti?
Makina opangira mankhwala okhala ndi nthaka amanyamula chitoliro chimodzi pa chubu cha PVC ndi machubu khumi pa bokosi lamatabwa; ndodo zokhala ndi mkuwa zimanyamula machubu khumi pa chitoliro cha PVC ndi machubu makumi awiri mpaka makumi asanu pa phaleti. Zonse zimatumizidwa kudzera ku Ningbo kapena Shanghai. Kuchuluka kwa mwezi uliwonse kumafika pa zidutswa 10,000–50,000 za mayunitsi a mankhwala ndi zidutswa 50,000 za ndodo, kotero maoda a chidebe ndi okhazikika kwa ife.
Titumizireni kafukufuku wanu wokhudza kukana kwa nthaka (njira ya Wenner), kukana kwanu, ndi kapangidwe ka malo anu — gulu lathu la mainjiniya lidzabweretsa kufananiza kofanana kwa ndodo zachikhalidwe ndi ma electrode a mankhwala pamalo anu enieni, ndi kuchuluka ndi mndandanda wazolongedza.
Nthawi yotumizira: Sep-29-2026