Terefone nziza zirinda guturika ku bimera bya shimi 2026

Intangiriro

Guhitamo ibikoresho by'itumanaho by'uruganda rukora imiti bivuze guhuza imikoranire yihuse n'ibisabwa mu buryo buhamye mu mutekano w'ahantu hashobora guteza akaga. Iyi nkuru isobanura icyatuma telefoni zidashobora guturika zikoreshwa mu bidukikije bihindagurika, kuva ku gishushanyo mbonera cy'aho zifungiye n'ibipimo by'ubuziranenge kugeza ku kuramba, imikorere y'amajwi, no kwizerwa mu gihe cy'impanuka. Abasomyi bazamenya ibintu by'ingenzi cyane iyo bagereranya moderi zo mu 2026, uburyo ibi bikoresho bifasha kugabanya ibyago byo gutwika mu duce dushobora kwibasirwa na gaze cyangwa ivumbi, n'ibyo amatsinda atanga amasoko agomba kugenzura mbere yo kugura. Iyo urwo rufatiro rushyizweho, ibice bikurikira bizasuzuma ibintu by'ingenzi bya tekiniki n'amahitamo y'ingenzi yo gukoresha uruganda rukora imiti.

Impamvu telefoni zirinda guturika zifite akamaro mu bimera bya shimi

Inganda zikora imiti zihora zibangamiwe n’ikirere gihindagurika cyane, aho kuba hari imyuka itwika, umwuka n’ivumbi rishobora gushya bisaba amabwiriza akomeye y’umutekano. Muri ibi bice bishobora guteza akaga gakomeye, ibikoresho bisanzwe by’itumanaho biteza ibyago bikomeye byo gutwika.Terefone zirinda guturikabyakozwe by’umwihariko kugira ngo bikureho iki kibazo, bigamije kwemeza ko itumanaho ry’ingenzi rishobora kuba mu mutekano mu bice byabugenewe biteje akaga bidakora nk’isoko y’umuriro.

Mu gihe abakora ibikorwa by’inyubako bareba mu 2026, uruhare rw’ibi bikoresho byihariye rurenze kubahiriza amategeko gusa. Bikora nk'inkunga y’ibanze mu gihe cy’ibikorwa byihutirwa, guhagarika ibikorwa, no guhuza ibikorwa bya buri munsi. Gusobanukirwa uburinzi bw’imashini n’amashanyarazi buri muri ibi bikoresho ni ingenzi ku bayobozi b’ibigo, abahanga mu by’umutekano, n’amatsinda ashinzwe gutanga amasoko ashinzwe kubungabunga imikorere n’umutekano w’abakozi.

Ni gute telefoni zidashobora guturika zigabanya ibyago byo gukora

Telefoni zidaturika zigabanya ibyago byo gukora cyane cyane binyuze mu buryo bworoshye bwo gufunga no kugabanya ingufu. Ibi bikoresho byubatswe mu buryo buhambaye bwa aluminiyumu, polyester ikoreshwa mu kirahure (GRP), cyangwa icyuma kidashonga, byagenewe kubikamo ibisasu imbere. Ibisasu bidaturika (Ex d) byemeza ko iyo imyuka ihindagurika yinjira mu gisenge ikagurumana, umuriro uvamo uhita ukonjeshwa kandi uzimwa n'imirongo ikoreshwa neza mbere yuko utangira gutwika ikirere cyo hanze.

Byongeye kandi, ibice byinshi bigezweho bikoresha uburyo bwo gukwirakwiza amashanyarazi n'ubushyuhe mu buryo butekanye (Ex i). Ubu buryo bugabanya ingufu z'amashanyarazi n'ubushyuhe ziboneka muri sisitemu kugeza ku rugero ruri munsi y'urugero rw'imvange y'imyuka ihumanya. Mu gushyira ingufu zishobora gukoreshwa mu gutwika munsi ya mililiyoli 0.2 (mJ) ku bidukikije bihindagurika cyane, telefoni zidashobora guturika zemeza ko ibikorwa bisanzwe—nk'ukuzamura terefone cyangwa guhamagara inomero—bitazatera ibyago bikomeye.

Kuki inganda zikora imiti zisubiramo sisitemu z'itumanaho

Urwego rw’inganda zikora imiti irimo guhinduka cyane mu buryo bw’ikoranabuhanga, bituma habaho isuzuma rikomeye ry’uburyo bw’itumanaho bwa kera. Ibikorwa remezo bya analog bishaje bikunze kugira ibibazo byo kwangirika kw’ibimenyetso, ubushobozi buke bwo gusuzuma, no kutagira aho bihurira na sisitemu zigezweho zo kugenzura imikorere (DCS). Iyo itumanaho rya kera rinaniwe mu gihe cy’impinduka zikomeye mu mikorere, igihe cyo kubura kw’ibikoresho bishobora gutuma inganda zikora imiti zitwara imiti zizamuka hagati y’amadolari 10.000 na 50.000 ku isaha mu bikorwa byo gutakaza umusaruro no kugarura umusaruro.

Kubera iyo mpamvu, inganda zirimo kwimukira ku mbuga z’itumanaho zihuriweho zitanga serivisi zo kugenzura ubuzima mu buryo bwihuse no gutanga raporo ku makosa mu buryo bwikora. Gusubiramo ubu buryo bifasha abakora akazi kumenya ahantu hatagaragara ubwikorezi no kuvugurura telefoni zikoresha interineti zirinda guturika. Ubu buryo bwo gukora butuma ubwuzuza amabwiriza mashya y’umutekano mu kazi, ndetse bunagabanya cyane igihe cyo gusana (MTTR) binyuze mu gusuzuma amakosa y’ibikoresho mbere yuko bibangamira gahunda y’umutekano.

Ni iki gisobanura Terefone nziza zirinda guturika

Ni iki gisobanura Terefone nziza zirinda guturika

Kumenya telefoni nziza idaturika bisaba gukoresha umurongo ugoye w’amahame mpuzamahanga y’umutekano, ibipimo by’ubudahangarwa bw’imiterere, n’ubushobozi bw’imikorere y’amajwi. Ibikoresho byiza si ibikomeye gusa; ni ibyemewe neza ku birebana n’ibintu byihariye bihindagurika n’ibidukikije bidasanzwe biboneka mu kigo runaka.

Ni ibihe bipimo by'ahantu hashobora guteza akaga n'ibyemezo by'ingenzi kurusha ibindi

Ishingiro ry'igikoresho icyo ari cyo cyose kidaturika kiri mu byangombwa byacyo by'ahantu hashobora guteza akaga, cyane cyaneATEX(Uburayi), IECEx (International), na UL/CSA (Amerika y'Amajyaruguru). Izi gahunda zishyira ibidukikije mu byiciro cyangwa mu bice hashingiwe ku bushobozi bw'ikirere giturika. Terefone ikoreshwa mu gace gashobora kubamo imyuka iturika mu mikorere isanzwe igomba kuba ifite icyemezo cya Zone ya 1 (cyangwa Icyiciro cya I, Icyiciro cya 1).

Ikindi kintu cy'ingenzi ni amanota y'itsinda rya gaze n'ay'ubushyuhe. Inganda zikora imiti zikunze gutunganya ibintu bihindagurika cyane nka hydrogen cyangwa acetylene, bigatuma ibikoresho bipimwa kuri gaze IIC. Byongeye kandi, ubushyuhe ntarengwa bw'ubuso bw'ibikoresho ntibugomba kurenza ubushyuhe bw'ibyuka biyikikije. Icyiciro cy'ubushyuhe bwa T4, gihamya ko ubuso bw'igikoresho butazarenza dogere selisiyusi 135 mu gihe cy'ikosa, gifatwa nk'urugero rw'ibanze rwo gushyira mu nganda imiti.

Ni gute kuramba no gukora neza kw'amajwi bigira ingaruka ku bwizewe

Inganda zikora imiti zigaragaza ibidukikije bibi birangwa n’ibinyabutabire byo mu kirere byangiza, amazi akoreshwa n’umuvuduko mwinshi, n’ihindagurika ry’ubushyuhe rikabije. Telefoni zo ku rwego rwo hejuru zirinda guturika zigira amanota ya IP66 cyangwa IP67 yo kurinda kwinjira, zirinda umukungugu n’amazi akoresha umuvuduko mwinshi. Kuba imiterere yazo iramba ni byo bigena ubuzima bw’igikoresho, aho moderi nziza zitanga ubushyuhe buri hagati ya -40°C na +70°C.

Imikorere y'amajwi nayo ni ingenzi cyane kugira ngo umuntu agire icyizere, kuko urusaku rwo mu gace gatunganyirizwamo akenshi ruri hagati ya 85 dB na 110 dB. Telefoni zisanzwe ntacyo zimara muri ubu buryo. Utwuma twiza cyane twirinda guturika dufite mikoro zikuraho urusaku zikuraho compressor y'umuvuduko muto n'urusaku rwa pompe, hamwe n'ibikoresho byakira amajwi byazamuwe. Amatara n'amahoni byoroshye, bishobora gusakaza kuri 110 dB cyangwa birenga, ni ingenzi kugira ngo abantu bamenye neza ko abahamagara binjira mu gihe cyo gutunganya amajwi.

Ni ibihe bipimo byiza ugereranije amahitamo ya telefoni zidashobora guturika

Mu kugereranya amahitamo, injeniyeri zigomba gusuzuma aho urwego rw’impamyabumenyi ruhurira, ubushobozi bwo guhangana n’ibidukikije, na gahunda y’itumanaho bihurira. Guhitamo igikoresho gifite amanota menshi kuruta uko bikenewe bishobora kongera amafaranga akoreshwa mu gishoro, mu gihe bitagaragaza neza umutekano. Imbonerahamwe iri hepfo igaragaza ibyiciro by’ibanze bya Zone n’urwego rujyanye nabyo rwo kurinda ibikoresho (EPL) bikenewe kugira ngo bishyirwe mu bikorwa mu mutekano.

Gushyira mu byiciro uturere Urwego rwo Kurinda Ibikoresho (EPL) Kubaho kw'ikirere
Akarere ka 0 Ga (Uburinzi Bukomeye Cyane) Ibihoraho (> amasaha 1000/umwaka)
Akarere ka 1 Gb (Uburinzi Bukomeye) Rimwe na rimwe (amasaha 10-1000/umwaka)
Akarere ka 2 Gc (Uburinzi Burushijeho Kubahwa) Gake cyane (

Mu gusuzuma ibi bipimo ngenderwaho ugereranije n’imiterere y’inganda runaka, abafata ibyemezo bashobora gushyiraho ibipimo ngenderwaho byemeza ko amategeko yubahirizwa mu gihe bongera imikorere y’amajwi mu turere abakozi bakoreramo.

Uburyo bwo kugereranya ikoranabuhanga rya telefoni ridashobora guturika

Ishingiro ry'ikoranabuhanga ryaitumanaho ry'ingandairi guhinduka, iha abayobozi b'ibigo amahitamo hagati yo kubungabunga imiyoboro gakondo ya analog cyangwa gushora imari muri Voice over Internet Protocol (VoIP) na Session Initiation Protocol (SIP). Gusobanukirwa ingaruka z'iri koranabuhanga n'imari by'iri koranabuhanga ni ingenzi mu igenamigambi ry'igihe kirekire.

Ni ibihe bihurirana hagati ya sisitemu za analog, SIP, na VoIP?

Sisitemu za analogi zikoresha ibikorwa remezo by’umuringa bisanzwe bifite insinga ebyiri, bikurura amashanyarazi ya 48V DC aturutse ku isoko ryigenga rya branch exchange (PBX). Zirizewe cyane, ntizishingiye ku guhagarara k’umuyoboro w’itumanaho mu gace runaka, kandi zishobora kohereza ubutumwa mu ntera ya kilometero 5 nta gusubiramo. Ariko, telefoni za analogi ntizifite ubushobozi bwo gusuzuma no guhuza amakuru, bigatuma kugenzura sisitemu yose bisaba imbaraga nyinshi.

Ku rundi ruhande, sisitemu za SIP na VoIP zikoresha imiyoboro ya Ethernet, zitanga uburyo bwo guhuza neza n'imiyoboro yose y'ikoranabuhanga.IP PBXna platforme za DCS. Izi protocole zo kuri interineti zishyigikira ibintu bigezweho nko kwipima mu buryo bwikora, gukoresha uburyo bwa multicast paging, no kuvugurura firmware. Ubu bufatanye burimo ibisabwa bikomeye mu bikorwa remezo by'umuyoboro, harimo gukenera switches za Power over Ethernet (PoE) na fiber-optic cables ku ntera irenga metero 100.

Ibisobanuro Sisitemu za Analogi Sisitemu za SIP/VoIP
Ibikorwaremezo bya Cable Umuringa w'insinga ebyiri Cat5e/Cat6 cyangwa Fiber
Ingufu zikenewe Ikoresha umurongo binyuze kuri PBX PoE (IEEE 802.3af, 15.4W)
Igiciro gisanzwe cy'ibicuruzwa $800 – $1,500 $1,200 – $2,800
Intera ntarengwa ~ 5 km (itasubirwamo) metero 100 (umuringa), >2km (fibre)

Ni gute ikiguzi cyose cy'umutungo n'ibice bisimbura bigira ingaruka ku gaciro

Nubwo amafaranga akoreshwa mu mitangire y’imari (CAPEX) kuri telefoni zikoresha VoIP zidashobora guturika ari menshi—ubusanzwe ari hagati ya $1,200 na $2,800 kuri buri mashini ugereranije na $800 na $1,500 kuri za analog—Ikiguzi cyose cy’ubukode (TCO) gikunze gukundisha sisitemu z’ikoranabuhanga mu gihe cy’imyaka 10. Igenzura ry’ubuzima ryikora rikuraho ko abatekinisiye bakenera kugenda hasi mu ruganda kugira ngo barebe imikorere ya telefoni, bigabanya cyane ikiguzi cy’abakozi.

Kuboneka kw'ibice bisimburana n'igihe hagati y'impanuka (MTBF) nabyo bigira ingaruka zikomeye ku gaciro. Ibikoresho by'ikoranabuhanga byo mu rwego rw'inganda byakozwe mu buryo bufatika, akenshi bitwara amasaha arenga 50.000. Kumenya neza ko uruganda rwatoranijwe rutanga ibice bisimburana mu gihe cy'imyaka nibura 10 nyuma yo gushyirwaho ni ingenzi kugira ngo hirindwe ko sisitemu ishaje itarakora neza no kuvugurura forklift ihenze.

Ni izihe ngingo z'isuzuma ry'umutanga serivisi z'ingenzi kurusha izindi

Gusuzuma abatanga ibicuruzwa birenga gusuzuma impapuro zigaragaza ibicuruzwa. Mu isoko ryihariye ridashobora guturika, ubwizigirwa bw'uruhererekane rw'ibicuruzwa ni ikintu cy'ingenzi gitandukanya. Igihe gisanzwe cyo gukora telefoni zemewe na ATEX gikunze kumara ibyumweru 4 kugeza kuri 6, ariko imiterere yihariye cyangwa amanota yihariye y'itsinda rya gazi bishobora gutuma ibicuruzwa birenza ibyumweru 12, bigagira ingaruka ku ngengabihe y'umushinga.

Amatsinda ashinzwe gutanga amasoko agomba kandi gusuzuma ibisabwa na Minimum Order Quantity (MOQ) n'ibisabwa ku garanti. Umutanga serivisi wemewe agomba gutanga garanti isanzwe y'amezi 24 kugeza kuri 36, hamwe n'ubufasha busesuye mu bijyanye no guhuza imiyoboro y'itumanaho. Byongeye kandi, kugenzura ko umutanga serivisi ahabwaIcyemezo cya ISO 9001n'amateka yabo mu nzego z'igenzura ry'imigabane ya gatatu bishimangira ko inzira yo gukora ikurikiza amahame akomeye asabwa ku bikoresho biteza akaga mu gace runaka.

Uburyo bwo guhitamo telefoni zirinda guturika neza

Kugura ibikoresho by'itumanaho bidaturika si icyemezo cyo kugura kimwe gusa. Bisaba imbaraga zihuriweho mu nzego nyinshi kugira ngo ikoranabuhanga ryatoranijwe ryuzuze amabwiriza y'umutekano, imiterere y'imiyoboro y'itumanaho, n'ingengo y'imari iciriritse bitabangamiye imikorere myiza.

Uburyo ikoranabuhanga, EHS, ibikorwa, n'amasoko bigomba guhuzwa

Guhuza Ubuzima n'Umutekano by'Ibidukikije (EHS), Ubwubatsi, Ibikorwa, n'Amasoko ni inkingi ikomeye yo gushyiraho ibikoresho neza. Abakozi ba EHS bagena uburyo uturere duteje akaga dushyirwa mu byiciro kandi bakareba ko amabwiriza ya OSHA na ATEX yubahirizwa, birinda ikigo kutubahiriza amategeko y'umutekano ashobora gucibwa amande arenga $100.000 kuri buri kibazo. Isuzuma ryabo rigena amanota y'ibanze y'umutekano ibikoresho bigomba kugira.

Mu gihe kimwe, itsinda ry’Ubwubatsi rigomba gusuzuma ibikorwa remezo by’ikoranabuhanga bihari, rikareba niba imiterere y’umuyoboro w’itumanaho ishobora gushyigikira ingengo y’imari y’amashanyarazi ya PoE (urugero, gutanga 15.4W kuri buri muyoboro ku bikoresho bisanzwe bya IEEE 802.3af). Ibikorwa bitanga umusanzu w’ingenzi mu bijyanye na ergonomics y’abakoresha, nko gukenera keypad yuzuye ugereranije na telefoni zigendanwa, mu gihe Procurement ihuza ibi bisabwa kugira ngo habeho ibiciro byiza, inkunga y’ubuzima, n’amasezerano y’ingwate meza.

Intambwe zifatika zifasha guhuza terefone n'ibikenewe ku rubuga

Guhindura ibi bisabwa mu nzego zitandukanye mu kugura neza bitangirana n'inyigo yuzuye y'ahantu. Abahanga mu by'ubwubatsi bagomba kugena imbibi nyazo z'agace ka Zone ya 1 na Zone ya 2, bakazigereranya n'urusaku rwo mu kirere. Kumenya uduce aho urusaku rw'inyuma ruhora rurenga 90 dB bizagena neza aho amajwi y'urusaku n'amatara y'inyongera ya 110 dB ari ngombwa.

Nyuma y’ubushakashatsi, igerageza ry’ibikoresho bike ni byiza cyane. Gushyira igikoresho cya VoIP mu gace gafite ingese nyinshi bituma itsinda rishobora kugenzura ko gihujwe na seriveri ya SIP no kugerageza ubushobozi bwa mikoro ikuraho urusaku mu gihe cy’imikorere nyayo. Iyi ntambwe yo kugenzura ikoreshwa ry’ikoranabuhanga irinda amakosa menshi mu gutanga amasoko kandi ikerekana ko telefoni zatoranijwe zihuye neza n’ibyo urubuga rukeneye mu bijyanye n’ibidukikije n’imikorere.

Uburyo bwo guhitamo ikigukwiriye neza mu bimera byawe

Uburyo bwo guhitamo ikigukwiriye neza mu bimera byawe

Gusoza igikorwa cyo guhitamo bisaba kuyungurura ibisabwa byose binyuze mu isuzuma ry’ikoreshwa ry’uruganda runaka. Mu guhuza imiterere y’ibikoresho n’imirimo ikorwa mu nzego zitandukanye z’ikigo, abafata ibyemezo bashobora kurangiza ingamba zo gutanga amasoko zinoze kandi zigatanga umutekano n’agaciro k’ishoramari.

Ni gute abafata ibyemezo bashobora kugabanya amahitamo binyuze mu gusaba

Uduce dutandukanye mu ruganda rw’imiti dukenera uburyo butandukanye bwo gutumanaho. Urugero, aho gupakira ibikoresho n’aho gutwara ibintu akenshi bisaba utubuto twuzuye kugira ngo abakora akazi babashe guhamagara amashami atandukanye y’imbere mu gihugu n’abahuzabikorwa b’ubwikorezi bo hanze. Izi mashini zigomba kuba zifite imbaraga,utubuto tw'ikirere gifunze nezaishobora gukoreshwa n'abakozi bambaye uturindantoki turemereye kandi tudakoresha imiti.

Ku rundi ruhande, mu bice bikomeye cyane nko ku nkuta z'amashanyarazi cyangwa hafi y'inkingi zikoresha umuvuduko mwinshi, itumanaho hagati y'aho riherereye ni ryo rishyirwa imbere. Muri utwo duce, telefoni zikoresha umuvuduko wikora—zihuza mu cyumba cyo kugenzura igihe telefoni izamuwe—ni zo mahitamo meza. Gukuraho inyuguti bikuraho amakosa yo guhamagara mu gihe cy'impanuka kandi bigabanya umubare w'aho imyuka yangiza ishobora kwinjira mu gikoresho.

Ni ubuhe buyobozi bwa nyuma bushyigikira icyemezo cyo kugura gihamye

Ku bayobozi b'ibigo bateganya mu 2026 no mu gihe kizaza, kugenzura mu gihe kizaza umuyoboro w'itumanaho bigomba kuba ihame rya nyuma. Nubwo sisitemu za analog zikomeje kuba nziza ku buryo bworoshye bwo gusimbuza, gushyira imbere ikoranabuhanga rya SIP/VoIP bitanga uburenganzira bwo guhuza n'abakoresha imashini za IoT mu nganda n'ikoranabuhanga rigezweho ryo gucunga uruganda.

Amaherezo, icyemezo kigomba gushyira imbere ubwizigame bwemewe kuruta kuzigama amafaranga y’ibanze. Guhitamo telefoni zidashobora guturika zubatswe mu byuma bitangiza amashanyarazi cyangwa GRP ifite ingaruka nyinshi, zishyigikiwe n’ibyemezo bikomeye bya ATEX/IECEx, byemeza ko iyo hakenewe itumanaho ry’ingenzi mu gihe cy’impanuka, ibikoresho bizakora neza nta ngaruka zitewe n’umuriro.

Ibintu by'ingenzi byakunzwe

  • Imyanzuro y'ingenzi n'impamvu za telefoni zirinda guturika
  • Ibisobanuro, kubahiriza amategeko, n'igenzura ry'ingaruka bikwiye kwemezwa mbere yo kwiyemeza
  • Intambwe zikurikiraho zifatika n'ibyo abasomyi bashobora gushyira mu bikorwa ako kanya

Ibibazo Bikunze Kubazwa

Ni ikihe cyemezo cya telefoni idaturika igomba kugira ku nganda zikora imiti?

Hitamo neza imiterere y'ubuso bw'aho ukorera: ubusanzwe ATEX cyangwa IECEx Zone 1, Gas Group IIC, na nibura T4 ku bintu byinshi bya shimi. Huza icyemezo gihuye n'ingaruka za gaze, umukungugu, n'ubushyuhe by'uruganda.

Kuki inganda nyinshi zikora imiti zisimbura telefoni zisanzwe zikoresha imiti igabanya ubukana bw’uturemangingo (analog)?

Sisitemu za analogi zishaje zishobora kwangirika, kubura uburyo bwo gusuzuma, no gusana buhoro buhoro. Telefoni zigezweho za IP cyangwa VoIP zirinda guturika zinoza uburyo bwo gukurikirana, guhuza, no gutanga raporo ku makosa, bigafasha kugabanya igihe cyo kudakora no kutamenya itumanaho.

Ni ubuhe rwego rwo gukingira no gukingira ibintu byiza ku bidukikije bibi bya shimi?

Shaka imiterere idashya cyangwa ifite umutekano mu buryo bugaragara ifite uburinzi bwa IP66 cyangwa IP67. Ibikoresho nka aluminiyumu ikozwe mu cyuma gishonga, icyuma kitagira umugese, cyangwa GRP birwanya ingese, ivumbi, amazi yo mu mazi, ndetse no kwibasirwa n’ibimera byo hanze bikunze kugaragara mu nganda zikora imiti.

Ni gute telefoni za Siniwo zirinda guturika zishyigikira imishinga y'inganda?

Siniwo itanga ubufasha bushoboka kuva ku gushushanya no guhuza kugeza ku gushyiraho no kubungabunga. Ikoranabuhanga ryayo rigizwe na telefoni zidashobora guturika, intercom, paging, na VoIP ku bidukikije bishobora guteza akaga.

Ni iki abaguzi bagomba kugenzura uretse icyemezo mu gihe bagereranya ubwoko?

Emeza amajwi menshi ku bice biri hagati ya 85–110 dB, aho imikorere igarukira nko kuri -40°C kugeza kuri +70°C, uburyo bwo guhuza umuyoboro w'itumanaho, n'uburyo bwo gushyigikira ibice bisimbura ibindi. Emeza kandi sisitemu nziza z'uruganda nka ISO9001 n'ubushobozi bwo gutanga serivisi bwizewe.


Igihe cyo kohereza: Gicurasi-21-2026