Intangiriro
Icyumba gisukuye ni ishingiro ryo kugenzura umwanda. Hatabayeho icyumba gisukuye, ibice byanduye ntibishobora gukorwa ku bwinshi. Muri FED-STD-2, icyumba gisukuye gisobanurwa nk'icyumba gifite umwuka uyungurura, ukwirakwiza, utunganya, ibikoresho by'ubwubatsi n'ibikoresho, aho uburyo bwihariye bwo gukora bukoreshwa mu kugenzura ubwinshi bw'uduce tw'umwuka mu kirere kugira ngo hagerwe ku rwego rukwiye rw'isuku y'uduce.
Kugira ngo isuku igerweho neza mu cyumba gisukuye, ni ngombwa ko hatabaho gusa kwibanda ku gufata ingamba zo gusukura umwuka ushyushye neza, ahubwo no gusaba ko ibikorwa, ubwubatsi n'ibindi bidasanzwe bifatwa ingamba zijyanye nabyo: atari igishushanyo mbonera gikwiye gusa, ahubwo no kubaka no gushyiraho neza hakurikijwe ibisabwa, ndetse no gukoresha neza isuku y'icyumba gisukuye n'ubuvuzi bwa siyansi. Kugira ngo isuku igerweho neza mu cyumba gisukuye, inyandiko nyinshi zo mu gihugu no mu mahanga zasobanuwe mu buryo butandukanye. Mu by'ukuri, biragoye kugera ku guhuza neza umwihariko hagati y'ubuhanga butandukanye, kandi biragoye ku bashushanya imyubakire no kuyishyiraho ndetse n'imikoreshereze n'imicungire, cyane cyane iya nyuma. Ku bijyanye n'ingamba zo gusukura icyumba gisukuye, abashushanya benshi, cyangwa ndetse n'abafatanyabikorwa mu bwubatsi, akenshi ntibita ku buryo buhagije ku bintu bikenewe, bigatuma habaho isuku idashimishije. Iyi ngingo ivuga muri make gusa ku bintu bine bikenewe kugira ngo isuku igerweho mu ngamba zo gusukura icyumba gisukuye.
1. Isuku y'umwuka uturuka ku isuku
Kugira ngo isuku y’umwuka igerweho, icy’ingenzi ni imikorere n’ishyirwa ry’akayunguruzo ka nyuma k’uburyo bwo gusukura.
Guhitamo gushungura
Akayunguruzo ka nyuma k’uburyo bwo gusukura muri rusange gakoresha akayunguruzo ka hepa cyangwa akayunguruzo ka sub-hepa. Dukurikije amahame y’igihugu cyanjye, ubushobozi bwa akayunguruzo ka hepa bugabanyijemo ibyiciro bine: Icyiciro cya A ni ≥99.9%, Icyiciro cya B ni ≥99.9%, Icyiciro cya C ni ≥99.999%, Icyiciro cya D ni (ku bice ≥0.1μm) ≥99.999% (bizwi kandi nka akayunguruzo ka ultra-hepa); akayunguruzo ka sub-hepa ni (ku bice ≥0.5μm) 95 ~ 99.9%. Uko ubushobozi burushaho kuba bwinshi, niko akayunguruzo gahenze cyane. Kubwibyo, iyo duhisemo akayunguruzo, ntitugomba kuzuza gusa ibisabwa mu isuku y’umwuka, ahubwo tunatekereza ku bushobozi bw’ubukungu.
Ukurikije ibisabwa ku isuku, ihame ni ugukoresha filters zidafite imikorere myiza ku byumba bisukuye byo hasi n'filters zidafite imikorere myiza ku byumba bisukuye byo hejuru. Muri rusange: filters zikoresha ikoranabuhanga riciriritse n'izikoresha ikoranabuhanga riciriritse zishobora gukoreshwa ku rwego rwa miliyoni 1; filters za hepa zo mu cyiciro cya kabiri cyangwa icya gatatu A zishobora gukoreshwa ku rwego ruri munsi y'urwego rwa 10.000; filters za B zishobora gukoreshwa ku rwego rwa 10.000 kugeza 100; na filters za C zishobora gukoreshwa ku rwego rwa 100 kugeza 100. Bisa nkaho hari ubwoko bubiri bw'filters zo guhitamo kuri buri rwego rw'isuku. Guhitamo filters zikoresha ikoranabuhanga rinini cyangwa izidakoresha ikoranabuhanga riciriritse biterwa n'imimerere runaka: iyo umwanda w'ibidukikije ukabije, cyangwa igipimo cy'imyotsi yo mu nzu ari kinini, cyangwa icyumba gisukuye ari ingenzi cyane kandi gisaba umutekano munini, muri ibi cyangwa kimwe muri ibi bihe, hagomba gutoranywa filters zikoresha ikoranabuhanga rinini; bitabaye ibyo, hashobora gutoranywa filters zikoresha ikoranabuhanga riciriritse. Ku byumba bisukuye bisaba kugenzura uduce twa 0.1μm, filters za Class D zigomba gutoranywa hatitawe ku bwinshi bw'uduce twagenzuwe. Ibi byavuzwe haruguru ni ukureba gusa akayunguruzo. Mu by'ukuri, kugira ngo uhitemo akayunguruzo keza, ugomba no gusuzuma neza imiterere y'icyumba gisukuye, akayunguruzo, n'uburyo bwo gusukura.
Gushyiraho akayunguruzo
Kugira ngo umwuka ugerweho neza, ntibihagije kugira filters zibifitiye ubushobozi gusa, ahubwo no kwemeza ko: a. filters zitangirika mu gihe cyo gutwara no gushyiraho; b. Gushyiraho ni gukomeye. Kugira ngo ugere ku ngingo ya mbere, abakozi b'ubwubatsi n'abashyiraho bagomba kuba barahuguwe neza, bafite ubumenyi bwo gushyiraho sisitemu zo gusukura ndetse n'ubuhanga bwo gushyiraho. Bitabaye ibyo, bizagorana kwemeza ko filters zitangirika. Hari amasomo akomeye kuri ibi. Icya kabiri, ikibazo cyo gufunga neza kw'ibikoresho giterwa ahanini n'ubwiza bw'imiterere y'ibikoresho byo gushyiraho. Igitabo cy'igishushanyo gisaba muri rusange: ku filter imwe, hakoreshwa filter ifunguye, ku buryo nubwo habayeho gusohoka, bitazava mu cyumba; hakoreshejwe uburyo bwo gusohora umwuka bwa hepa, gufunga neza nabyo biroroshye kwemeza. Ku mwuka w'ibyuma byinshi, gel seal na negative pressure sealing bikunze gukoreshwa mu myaka ya vuba aha.
Ifu ya gel igomba kwemeza ko igice cy'ikigega cy'amazi gifatanye neza kandi ko urwego rwose ruri ku murongo umwe utambitse. Gufunga umuvuduko utari mwiza ni ukugira ngo impande z'inyuma z'urusobe ruri hagati y'akayunguruzo n'agasanduku k'umuvuduko kadahinduka n'akayunguruzo mu buryo butari bwiza. Kimwe no gushyiraho ubwoko bufunguye, nubwo haba hari amazi asohoka, ntabwo azameneka mu cyumba. Mu by'ukuri, igihe cyose urwego rw'ishyirwaho ruhagaze neza kandi impera y'uruyunguruzo ihuye neza n'urufunguzo, bigomba koroha gutuma akayunguruzo kuzuza ibisabwa mu buryo ubwo aribwo bwose bwo gushyiraho.
2. Imiterere y'ikirere
Imiterere y'umwuka mu cyumba gisukuye itandukanye n'iy'icyumba gisanzwe gifite umwuka ushyushye. Bisaba ko umwuka usukuye cyane ubanza kugezwa mu cyumba gikorerwamo. Inshingano yawo ni ukugabanya no kugabanya umwanda ku bintu byatunganyijwe. Kugira ngo bigerweho, amahame akurikira agomba kwitabwaho mu gihe cyo gushushanya imiterere y'umwuka ushyushye: kugabanya imirasire y'amazi kugira ngo wirinde ko umwanda uva hanze y'aho ukorera ujya mu cyumba gikorerwamo; kugerageza gukumira ivumbi rishobora kuguruka kugira ngo ugabanye amahirwe y'uko ivumbi ryanduza igikoresho gikorerwamo; umwuka ushyushye mu cyumba gikorerwamo ugomba kuba umwe uko bishoboka kose, kandi umuvuduko w'umuyaga wawo ugomba kuba wujuje ibisabwa mu buryo n'isuku. Iyo umwuka ushyushye ugana aho umwuka usohoka, ivumbi riri mu kirere rigomba gukurwaho neza. Hitamo uburyo butandukanye bwo gutanga umwuka n'uburyo bwo kugarura umwuka hakurikijwe ibisabwa bitandukanye by'isuku.
Imiryango itandukanye y’ingendo z’umwuka ifite imiterere n’uburyo ikoreshwa:
(1). Urugendo rw'amazi ruhagaze mu cyerekezo kimwe
Uretse ibyiza bisanzwe byo kubona umwuka umanuka mu buryo bumwe, koroshya uburyo bwo gutunganya ibikoresho, ubushobozi bwo kwisukura neza, no koroshya ibikoresho bisanzwe nko kwisukura, uburyo bune bwo gutanga umwuka bufite ibyiza n'ibibi byabwo: ibyuma bya hepa bipfundikiye bifite ibyiza byo kudakomera cyane no gusimbuza ibyuma birebire, ariko imiterere y'igisenge ni igoye kandi ikiguzi ni kinini; ibyiza n'ibibi byo gutanga icyuma cya hepa gipfundikiye ku ruhande no gutanga icyuma gipfundikiye ku mpande bitandukanye n'ibyo gutanga icyuma cya hepa gipfundikiye ku mpande. Muri byo, gutanga icyuma gipfundikiye ku mpande byoroshye gukurura umukungugu imbere mu gice cy'imbere cy'icyuma iyo sisitemu idakora neza, kandi kudakora neza bigira ingaruka ku isuku; gutanga icyuma gipfundikiye ku mpande bisaba urwego rwo kuvanga, bityo kibereye gusa ibyumba birebire bifite isuku hejuru ya metero 4, kandi imiterere yacyo isa n'iy'icyuma gipfundikiye ku mpande; Uburyo bwo kugarura umwuka ku isahani ifite grilles ku mpande zombi n'aho umwuka ugaruka uherereye hateganye neza hepfo y'inkuta zihanganye bukwiriye gusa ku byumba bisukuye bifite intera iri munsi ya metero 6 ku mpande zombi; aho umwuka ugaruka uherereye hepfo y'urukuta rw'uruhande rumwe gusa bukwiriye ku byumba bisukuye bifite intera nto hagati y'inkuta (nka ≤<2~3m).
(2). Urugendo rw'inzira rugororotse rugana mu cyerekezo kimwe
Ahantu ha mbere ho gukorera ni ho honyine hashobora kugera ku rwego rw'isuku rwa dogere 100. Iyo umwuka ugeze hakurya, ivumbi ryiyongera buhoro buhoro. Kubwibyo, rikwiriye gusa ibyumba bisukuye bifite ibisabwa bitandukanye byo gusukura mu buryo bumwe mu cyumba kimwe. Gukwirakwiza filters za hepa ku rukuta rw'umwuka bishobora kugabanya ikoreshwa rya filters za hepa no kuzigama ishoramari rya mbere, ariko hari imiyoboro y'amazi mu duce dutandukanye.
(3). Ingufu z'umwuka zitemba cyane
Ibiranga ko hejuru hatangwa amapine y’imbere n’itangwa ry’amapine menshi ni bimwe n’ibyavuzwe haruguru: ibyiza byo kujyana ku ruhande ni uko byoroshye gutegura imiyoboro, nta buryo bwo gushyiramo ibikoresho bya tekiniki, igiciro gito, kandi bifasha kuvugurura inganda zishaje. Ingaruka mbi ni uko umuvuduko w’umuyaga mu gace k’akazi ari munini, kandi ivumbi ryinshi ku ruhande rw’umuyaga uri hasi riri hejuru kurusha urw’uruhande rw’umuyaga uri hejuru; itangwa ry’amapine y’imbere ya hepa rifite ibyiza byo koroshya sisitemu, nta miyoboro iri inyuma ya hepa filter, n’umwuka usukuye ugezwa ahantu hakorerwa, ariko umwuka usukuye ugenda buhoro buhoro kandi umwuka uri ahantu hakorerwa uba umwe; icyakora, iyo hari ahantu henshi hatunganijwe neza cyangwa hagakoreshwa ahantu hakoreshwa amapine y’umwuka ya hepa filter hamwe n’amapine, umwuka uri ahantu hakorerwa na wo ushobora gukorwa umwe; ariko iyo sisitemu idakora buri gihe, imashini ikoresha amapine ikunda kwirundanya ivumbi.
Ibiganiro byavuzwe haruguru byose biri mu rwego rwiza kandi bigirwa inama n'ibisobanuro by'igihugu, amahame cyangwa ibitabo by'ibishushanyo mbonera. Mu mishinga nyayo, ikigo cy'umwuka ntabwo gikozwe neza bitewe n'imiterere ifatika cyangwa impamvu z'umuntu ugishushanya. Ibimenyetso bisanzwe birimo: amazi ahagaze akoresha umwuka ugaruka uturutse mu gice cyo hasi cy'inkuta ebyiri zegeranye, urwego rwa 100 rwo mu gace rukoresha amazi yo hejuru n'amazi yo hejuru (ni ukuvuga ko nta mwenda umanitse wongerwa munsi y'aho umwuka usohoka), naho ibyumba bisukuye bikoresha amazi ya hepa filter air outlet top flow n'amazi yo hejuru cyangwa amazi yo hasi asohoka ku ruhande rumwe (intera nini hagati y'inkuta), nibindi. Ubu buryo bwo gutunganya amazi bwapimwe kandi isuku yabwo myinshi ntiyujuje ibisabwa ku gishushanyo. Bitewe n'ibisobanuro bigezweho byo kwakira amazi cyangwa amazi adahindagurika, bimwe muri ibyo byumba bisukuye ntibigera ku rwego rw'isuku rwabigenewe mu bihe bidafite amazi cyangwa bidahindagurika, ariko ubushobozi bwo kurwanya umwanda ni buke cyane, kandi iyo icyumba gisukuye kigeze aho gikorera, nticyujuje ibisabwa.
Uburyo bwiza bwo guhumeka umwuka bugomba gushyirwaho amarido ahagaze ku burebure bw'aho bakorera mu gace, kandi icyiciro cya 100.000 ntikigomba gukoresha uburyo bwo kuzana umwuka hejuru no kuzana umwuka hejuru. Byongeye kandi, inganda nyinshi muri iki gihe zikora ahantu ho guhumeka umwuka neza cyane hamwe n'ibikoresho bikwirakwiza umwuka, kandi ibikoresho bikwirakwiza umwuka ni amabati gusa yo gusakaza umwuka kandi ntabwo bigira uruhare mu gukwirakwiza umwuka. Abashushanya n'abakoresha bagomba kwita kuri ibi cyane.
3. Ingano y'umwuka cyangwa umuvuduko w'umwuka
Ingano ihagije y'umwuka uhumeka ni ukugabanya no gukuraho umwuka wanduye mu nzu. Dukurikije ibisabwa bitandukanye by'isuku, iyo uburebure bw'icyumba gisukuye buri hejuru, inshuro z'umwuka zigomba kongerwa uko bikwiye. Muri byo, ingano y'umwuka uhumeka mu cyumba gisukuye gifite urwego rwa miliyoni imwe irebwa hakurikijwe sisitemu yo gusukura neza, naho izindi zirebwa hakurikijwe sisitemu yo gusukura neza; iyo filter za hepa zo mu cyumba gisukuye cya 100.000 zishyizwe mu cyumba cy'imashini cyangwa filter za sub-hepa zikoreshejwe ku mpera ya sisitemu, inshuro z'umwuka uhumeka zishobora kongerwaho 10-20%.
Ku bijyanye n'ingano y'umwuka yavuzwe haruguru, umwanditsi yizera ko: umuvuduko w'umuyaga unyura mu cyumba cy'icyumba gisukuye cy'amazi kiri mu cyerekezo kimwe ari muto, kandi icyumba gisukuye gifite agaciro gakwiye kandi gifite umutekano uhagije. Umuvuduko uhagaze ugana mu cyerekezo kimwe ≥ 0.25m/s, umuvuduko utambitse ugana mu cyerekezo kimwe ≥ 0.35m/s. Nubwo ibisabwa ku isuku bishobora kuzuzwa iyo bipimwe ahantu hadatuwe cyangwa hatameze neza, ubushobozi bwo kurwanya umwanda buba buke. Iyo icyumba kigeze mu gihe cyo gukora, isuku ishobora kutujuje ibisabwa. Uru rugero ntabwo ari ikintu cyonyine gihari. Muri icyo gihe, nta mafeni akwiriye sisitemu zo gusukura mu gice cy'imashini zifasha guhumeka mu gihugu cyanjye. Muri rusange, abashushanya akenshi ntibakora imibare nyayo y'ubudahangarwa bw'umwuka wa sisitemu, cyangwa ntibarebe niba umufana watoranijwe uri ahantu heza ho gukorera ku murongo uranga, bigatuma ingano y'umwuka cyangwa umuvuduko w'umuyaga unanirwa kugera ku gaciro k'igishushanyo mbonera nyuma gato y'uko sisitemu itangiye gukora. Amabwiriza ya leta ya Amerika (FS209A~B) yavugaga ko umuvuduko w'umwuka w'icyumba gisukuye ginyuze mu gice cy'icyumba gisukuye usanzwe uguma kuri 90ft/min (0.45m/s), kandi umuvuduko wo kudahuza uri muri ± 20% mu gihe nta kintu na kimwe kibangamiye icyumba cyose. Igabanuka rikomeye ry'umuvuduko w'umwuka rizongera amahirwe yo kwisukura no kwanduza hagati y'aho bakorera (nyuma y'uko FS209C itangajwe mu Ukwakira 1987, nta mabwiriza yashyizweho ku bimenyetso byose by'ibipimo uretse ubwinshi bw'umukungugu).
Kubera iyo mpamvu, umwanditsi yizera ko bikwiye kongera agaciro k’igishushanyo mbonera cy’imbere mu gihugu cy’umuvuduko w’amazi ugana mu cyerekezo kimwe. Ishami ryacu ryabikoze mu mishinga nyayo, kandi ingaruka ni nziza. Icyumba cy’isuku gifite agaciro gasabwa kandi gifite umutekano uhagije, ariko abashushanya benshi ntibarabyizezwa. Mu gukora ibishushanyo mbonera byihariye, bongera ingano y’umwuka w’icyumba cy’isuku cya 100.000 kugeza ku nshuro 20-25 ku isaha, icyumba cy’isuku cya 10.000 kugeza ku nshuro 30-40 ku isaha, n’icyumba cy’isuku cya 1000 kugeza ku nshuro 60-70 ku isaha. Ibi ntibyongera gusa ubushobozi bw’ibikoresho n’ishoramari rya mbere, ahubwo binakongera ikiguzi cyo kubungabunga no gucunga mu gihe kizaza. Mu by’ukuri, nta mpamvu yo kubikora. Mu gihe cyo gukusanya ingamba za tekiniki zo gusukura umwuka mu gihugu cyanjye, icyumba cy’isuku kirenga 100 mu Bushinwa cyakoreweho ubushakashatsi kandi gipimwa. Ibyumba byinshi by’isuku byapimwe mu buryo buhindagurika. Ibisubizo byagaragaje ko ingano y'imyororokere y'ibyumba 100.000 bisukuye inshuro ≥10/isaha, ibyumba 10.000 bisukuye inshuro ≥20/isaha, n'ibyumba 1000 bisukuye inshuro ≥50/isaha bishobora kuzuza ibisabwa. Amabwiriza ya Leta Zunze Ubumwe za Amerika (FS2O9A~B) agena: ibyumba bisukuye bidakoresha icyerekezo kimwe (icyiciro 100.000, icyumba 10.000), uburebure bw'icyumba 8 ~ 12ft (2.44 ~ 3.66m), ubusanzwe bitekereza ko icyumba cyose gihumeka nibura rimwe mu minota 3 (ni ukuvuga inshuro 20/isaha). Kubwibyo, imiterere y'igishushanyo mbonera yatekereje ku gipimo kinini cy'inyongera, kandi umuhanga mu by'igishushanyo mbonera ashobora guhitamo neza hakurikijwe agaciro k'ingano y'imyororokere.
4. Itandukaniro ry'umuvuduko uhoraho
Kugumana igitutu runaka cyiza mu cyumba gisukuye ni kimwe mu bintu by'ingenzi kugira ngo icyumba gisukuye kidahumanye cyane kugira ngo isuku ikomeze kuba nziza. Ndetse no ku byumba bisukuye igitutu kibi, bigomba kugira ibyumba byegeranye cyangwa ibyumba bifite isuku itari munsi y’urwego rwabyo kugira ngo igitutu runaka gikomeze kuba cyiza, kugira ngo isuku y’icyumba gisukuye igitutu kibi ikomeze kuba nziza.
Agaciro k'umuvuduko mwiza w'icyumba gisukuye yerekeza ku gaciro iyo umuvuduko utajegajega wo mu nzu uruta umuvuduko utajegajega wo hanze iyo inzugi n'amadirishya byose bifunze. Uburyo butuma ingano y'umwuka wo mu buryo bwo gusukura iruta ingano y'umwuka ugaruka n'ingano y'umwuka usohoka. Kugira ngo harebwe agaciro k'umuvuduko mwiza w'icyumba gisukuye, byaba byiza uhumetse n'uhumetse n'uhumetse. Iyo sisitemu ifunguye, uhumetse n'uhumetse n'uhumetse bibanza gutangizwa, hanyuma uhumetse n'uhumetse n'uhumetse; iyo sisitemu izimye, uhumetse n'uhumetse n'uhumetse bibanza kuzimwa, hanyuma uhumetse n'uhumetse n'uhumetse bikazimwa kugira ngo hirindwe ko icyumba gisukuye cyanduzwa iyo sisitemu ifunguye kandi izimye.
Ingano y'umwuka ukenewe kugira ngo icyumba gisukure gikomeze kugira igitutu cyiza iterwa ahanini n'uko inyubako yo kubungabunga isuku ikomeza kuba nziza. Mu ntangiriro z'inyubako zo mu gihugu cyanjye, bitewe n'uko inyubako yo mu gikari idafite igitutu cyiza, byasabaga inshuro 2 kugeza kuri 6 z'umwuka kugira ngo igitutu cyiza cya ≥5Pa kigume gihagaze neza; ubu, igitutu cy'umwuka mu nyubako yo kubungabunga cyarushijeho kuba cyiza cyane, kandi igitutu kimwe kugeza kuri 2/h cy'umwuka kiguma gihagaze neza kugira ngo igitutu kimwe kigume gihagaze neza; kandi igitutu kimwe kugeza kuri 3/h cy'umwuka kiguma gihagaze neza kugira ngo igitutu kinini kigume gihagaze neza.
Ibisobanuro by'igishushanyo mbonera cy'igihugu cyanjye [6] bivuga ko itandukaniro ry'umuvuduko uhoraho hagati y'ibyumba bisukuye by'ubwoko butandukanye n'ahantu hasukuye n'ahantu hadasukuye rigomba kuba munsi ya 0.5mm H2O (~5Pa), kandi itandukaniro ry'umuvuduko uhoraho hagati y'ahantu hasukuye n'aho hanze rigomba kuba munsi ya 1.0mm H2O (~10Pa). Umwanditsi yizera ko iki giciro gisa nkaho kiri hasi cyane kubera impamvu eshatu:
(1) Igitutu cyiza bivuga ubushobozi bw'icyumba gisukuye bwo gukumira ihumana ry'umwuka wo mu nzu binyuze mu cyuho kiri hagati y'inzugi n'amadirishya, cyangwa kugabanya imyanda yinjira mu cyumba iyo inzugi n'amadirishya bifunguwe igihe gito. Ingano y'igitutu cyiza igaragaza imbaraga z'ubushobozi bwo gukumira ihumana. Birumvikana ko uko igitutu cyiza kiba kinini, ari nako kirushaho kuba cyiza (ibi bizaganirwaho nyuma).
(2) Ingano y'umwuka ikenewe kugira ngo igitutu cyiza kibe gito. Ingano y'umwuka ikenewe kugira ngo igitutu cyiza kibe cya 5Pa n'igitutu cyiza cya 10Pa gitandukanye inshuro imwe gusa ku isaha. Kuki utabikora? Birumvikana ko ari byiza gufata igitutu gito cya 10Pa.
(3) Amabwiriza ya Leta Zunze Ubumwe za Amerika (FS209A~B) avuga ko iyo aho binjirira n'aho bisohokera hose hafunze, itandukaniro ry'umuvuduko ntarengwa hagati y'icyumba gisukuye n'ahantu hose hasukuye hakeye ni santimetero 0.05 z'amazi (12.5Pa). Iki giciro cyafashwe n'ibihugu byinshi. Ariko agaciro k'umuvuduko mwiza w'icyumba gisukuye ntabwo kaba kari hejuru, ahubwo kaba keza. Dukurikije ibizamini by'ubuhanga by'ishami ryacu mu myaka irenga 30, iyo agaciro k'umuvuduko mwiza ari ≥ 30Pa, biragoye gufungura umuryango. Iyo ufunze urugi utitonze, bizatera ubwoba abantu. Iyo agaciro k'umuvuduko mwiza ari ≥ 50~ 70Pa, icyuho kiri hagati y'inzugi n'amadirishya kizatera ikibazo, kandi abadafite imbaraga cyangwa abafite ibimenyetso bimwe na bimwe bidakwiye bazumva batameze neza. Ariko, ibisobanuro cyangwa amahame y'ibihugu byinshi byo mu gihugu no mu mahanga ntabwo agaragaza umuvuduko ntarengwa w'umuvuduko mwiza. Kubera iyo mpamvu, ibice byinshi bigerageza gusa kuzuza ibisabwa n'umuvuduko muto, hatitawe ku muvuduko wo hejuru. Mu cyumba cy’isuku nyacyo umwanditsi yahuye nacyo, igipimo cy’umuvuduko mwiza kiri hejuru ya 100Pa cyangwa irenga, bigatera ingaruka mbi cyane. Mu by’ukuri, guhindura igipimo cyiza ntabwo bigoye. Birashoboka rwose kukigenzura mu rugero runaka. Hari inyandiko yavugaga ko igihugu kimwe cyo mu Burayi bw’Iburasirazuba kivuga igipimo cy’umuvuduko mwiza nka 1-3mm H20 (hafi 10~30Pa). Umwanditsi yizera ko uru rugero ari rwo rukwiye kurushaho.
Igihe cyo kohereza: Gashyantare-13-2025