Uri kunetseka here nezvekuchengetedzwa kwemwenje mirefu yemapango munzvimbo yako yekunze? Unoda chiyero chakajairwa kuti uve nechokwadi chekuti mwenje mirefu iyoyo inogona kumira mhepo. Apa ndipo paunoda EPA ratings.
Chaizvoizvo, chiyero cheEPA inzira yekuongorora inoitirwa kuona kuti kunze kwese magetsi Pamatanda marefu pacharamba pakasimba pakurwisa mhepo. Semuenzaniso, magetsi anofanirwa kusangana nezvinodiwa nenzvimbo dzakadai semahombekombe, makungwa, uye makomo. Nechikonzero ichi, zvakakosha kufunga nezve EPA ratings paunenge uchiisa matanda.
Nhasi, ndichatsanangura zvakadzama nezvenyaya iyi yehunyanzvi kuti munzwisise zviri nani.
Chii chinonzi EPA?
Chimiro chakazara cheEPA chinonzi Effective Projected Area. Izwi iri rinoyera zvinhu zvine mativi matatu panzvimbo ine mativi maviri. Zvakare, rinoreva nzvimbo inoonekwa yechimiro chine mativi matatu ichipesana nemhepo pane imwe kona.
Semuenzaniso, chimiro chekona chine mativi matatu chinosiyana zvichienderana nemakona akasiyana. Dzimwe nguva chinotaridzika setriangle, uye dzimwe nguva chinotaridzika sedenderedzwa. Kutaura zvazviri, zvikamu zvese zvemwenje, zvakaita sedanda, fixture, uye teno, zvine zviyero zvakasiyana zveEPA. Saka, uchafanirwa kuverenga huwandu hweEPA paunenge uchigadzira sisitimu yemwenje.
Chii chinonzi EPA Wind Rating?
Chiyero chemhepo cheEPA ndicho chiyero chemhepo inomhanyisa iyo mudziyo wakasungirirwa padanda unogona kutsungirira zvakachengeteka. Kuti unyatsotsanangura, inoverenga nzvimbo yese yechinhu chinogona kuchengetedzwa nedanda pamhepo. Kuburikidza nechiyero ichi, uchawana pfungwa yekusimba kwechimiro chematanda ako nezvinhu zvako kana zvichienzaniswa nemamiriro emhepo akaipisisa. Kana paine mwenje yemafashamo, EPA inoyera simba redanda remwenje.
Semuenzaniso, nzvimbo dzine mhepo ine simba rakadai seMiami neHouston muAmerica dzinosangana nemhepo ine simba re110 MPH (mamaira paawa). Saka, uchafanira kusarudza rambi rine chiyero cheEPA rinogona kubata mhepo ine simba re110 MPH.
Mhepo Inokanganisa Sei Matanda Ako Echiedza?
Mhepo inokonzera kudedera kwemodhi yekutanga kana yechipiri mushure mekurova danda remwenje. Mhepo inokasira uye ine simba guru inokonzera kudedera kwemodhi yekutanga kana ichitenderedza pamusoro pedanda. Zvisinei, rudzi urwu rwekudedera haruna njodzi, sezvo matanda emwenje anochinjika zvakakwana kuti abate kufamba. Kusiyana neizvi, kudedera kwemodhi yechipiri kana Aeolian kune njodzi. Pano, mhepo inodzikama uye ine simba shoma, ine simba guru inokanganisa pakati pedanda. Nekuda kweizvozvo, matambudziko akasiyana-siyana akadai semarambi akatsemuka, kupwanyika kwestress, ngura, uye kutadza kwedanda kunogona kuitika mumamiriro ezvinhu aya. Unofanira kushandisa vibration dampener kuti uderedze izvi.
Kukosha kweEPA Rating
Kudzivirira Zviitiko Zvine Ngozi
Zvishandiso zvakaiswa pamatanda zvinofanira kukwanisa kubata masimba emhepo enzvimbo. Kufunga nezve EPA rating chaiyo kunoita kuti matanda asakotame kana kudonha kana mhepo yanyanya kuipa.
Kunzwisisa Zvinodiwa Nekumhanya Kwemhepo
Uchada ruzivo rwakarurama nezvemamiriro emhepo munzvimbo dzakasiyana usati waisa mapango emwenje. EPA ratings dzinokubatsira kunzwisisa zvinodiwa nekumhanya kwemhepo.
Kugadzirisa Zvinodiwa paKuisa
Kuongororwa kweEPA kwemapango nemagetsi kunodiwa kuti unzwisise rudzi rwemichina yaunoda pakuisa sisitimu yemwenje.
Nzira yekuyera sei chiyero cheEPA?
1. Kuverenga EPA yeChinhu Chimwe Chete
Fomura yeEffective Projected Area kana kuti EPA ndeiyi inotevera:
| Nzvimbo Inoshanda Yakarongwa (EPA) = Nzvimbo Inotarisirwa (A) x Drag Coefficient (Cd) x Gust Factor |
- Kuyerwa kweA: Nzvimbo yeProject Area (PA) inoreva nzvimbo yepamusoro-soro yechiedza uye nzvimbo yacho painoiswa. Chikamu chezwi iri masikweya-mamita.
- Kuyerwa kweCd: Drag Factor (Cd) zvinoreva kuti chinhu kana chimiro chinogona kuramba zvakadii mumhepo. Ipfungwa isina divi inokanganiswa nekuwanda kwemhepo, kumhanya, uye nzvimbo yepamberi. Kuwanda kwemhepo kunofanirwa kuenderana nemamiriro egungwa pa15°C. Pamusoro pezvo, kukwira kwekudhonza zvinoreva kuti chinhu chinogona kuramba mhepo zvakanyanya. Pane kudaro, zvinhu zvine kudonha kwakaderera zvinoramba mhepo zvishoma.
- Chinhu Chinokonzera Gungu: Chinhu ichi chinoreva kuwedzera kwemhepo inokonzerwa nemamiriro ekunze ane mhepo. Inhamba isina chiyero inowanikwa mumitemo yekuvaka kana zviyero.
Muenzaniso Wekuverenga: Ngatitii mwenje une nzvimbo yekumberi ye 0.158 square feet, drag coefficient ye 1.20, uye gust factor ye 1. Zvadaro, EPA yayo ichava 0.158* 1.20 * 1 = 0.190 square feet.
2. Kuverenga Total EPA yeLight Pole Assembly
Pano, unoda EPA yezvinhu zvese zviri muchikamu chemwenje. Saka, shandisa fomura inotevera kuti uverenge huwandu hweEPA hwemwenje wako:
| (EPA yezvishandiso zvemwenje X huwandu hwezvishandiso zvemwenje) + (EPA yemabhureki X huwandu hwezvishandiso) + (EPA yezvishandiso X huwandu hwezvishandiso) |
Ngatitii maEPA ezvishandiso zviviri zvemwenje ane 5.2 square feet. Rimwe bracket rine EPA ye 2.1 square feet, uye rimwe accessory rine EPA ye 0.8 square feet.
Huwandu hweEPA huchava (5.2 * 2) + (2.1 * 1) + (0.8 * 1) = 13.3 square feet.
Ungatenga sei danda rakareruka uchishandisa chati yeEPA?
- Pakutanga, tsvaga nzvimbo yemhepo yenzvimbo yauchaisa mwenje kubva pamepu yekumhanya kwemhepo yenyika yako.
- Mushure meizvozvo, erai EPA yese yezvinhu zvese zvakaiswa padanda. Muchawana kukosha kweEPA pamapepa ezvigadzirwa.
- Iye zvino tsvaga EPA yepamusoro yenzvimbo yako yemhepo pachati.
- Iva nechokwadi chekuti huwandu hwese hweEPA hwemidziyo yako huri mukati meEPA yepamusoro inobvumirwa padanda iroro. Kana zvisina kudaro, unofanira kutenga danda riri nani repurojekiti.
Unganzwisisa Sei Zvinodiwa neEPA zvePurojekiti Yako?
- Kutanga, sarudza nzvimbo yauchaisa sisitimu yemwenje.
- Wobva waverenga EPA nehuremu hwese hwe pole assembly.
- Mushure meizvozvo, ita ongororo yemutoro wemhepo kuti uone zvinodiwa nemutoro wemhepo.
- Pakupedzisira, tora mazano kubva kuvagadziri vemapango kuti uone kuti maverengerwo acho uye mamiriro enzvimbo yacho ari kushanda.
Zvinhu Zvinokanganisa Zvinodiwa neEPA zveChiedza
- Rudzi uye Nhamba yeMarambi: Marambi akasiyana ane maEPA akasiyana zvichienderana nekugadzirwa, saizi, uye chimiro. Uyewo, huwandu hwakawanda hwemwenje padanda hunoita kuti pave nenzvimbo yakawanda inozosangana nemhepo. Saka, zvinodiwa neEPA zvinochinja zvichienderana nerudzi nenhamba yemwenje.
- Kurema kweMagadzirirwo eChiedza: Zvishandiso zvemwenje zvine zvinorema zvinoshandisa simba rakawanda pamatanda azvo, zvichikanganisa simba remhepo yematanda.
- Mabhuraketi Ekuisa uye Zvishongedzo: Kuisa mabhureki ekubatanidza chiedza padanda nezvimwe zvinhu zvinowedzera nzvimbo yese yepamusoro, kudhonza coefficient, uye, nekudaro, zvinodiwa neEPA zvedanda.
- Pole Height: Kureba kwematanda kunochinja maverengerwo ezvinodiwa neEPA. Semuenzaniso, matanda marefu anoda zvinhu zvakasimba sezvo zviri nyore kukanganiswa nemhepo.
- Chimiro chePole uye Chikamu Chemuchinjikwa: Maumbirwo akasiyana edanda anomiririra ma EPA ratings akasiyana. Kazhinji, matanda akaenzana ane ma EPA ratings akakwira kupfuura matanda akatenderera. Kunze kweizvozvo, dhayamita nehukobvu hwemadziro edanda rinoyambuka danda zvinokanganisa kugona kwaro kutakura mutoro.
- Dhizaini Yezvinhu Uye Zvivakwa: Zvinhu zvinoshandiswa kugadzira danda, zvakaita sesimbi kana aruminiyamu, uye dhizaini yemaumbirwo aro zvinosarudza kugona kwedanda kutsungirira mitoro yemhepo.
- Mamiriro Emhepo Munharaunda: Unofanira kuteedzera kumhanya kwemhepo kwakanyanya munharaunda usati waverenga kukosha kweEPA padanda remwenje. Kutaura zvazviri, matunhu ane nhoroondo yekumhanya kwemhepo kwakakwira ane zvinodiwa zvishoma zveEPA. Saka, unofanirwa kusarudza zvigadziko zvidiki, mabhureki, uye zvishongedzo zvedanda remwenje munzvimbo ine mhepo yakawanda.
- Kuisirwa Nharaunda: Nyika yakapoteredza, kukanganiswa kwayo nemhepo, uye mwero wekuzunguzika kunogona kuitika munzvimbo yekuisa zvinokanganisa zvinodiwa neEPA zvepango remwenje.
Hukama Huripo Pakati peEPA neAASHTO Guidelines
The Vakuru veAmerican Association of State Highway and Transportation (AASHTO) inoisa gwara reAASHTO, iro rinoona kuti EPA inoshandiswa sei pakugadzira zvivakwa zvemwenje yekunze. Gwara reAASHTO rinobatsira kuverenga mitoro yemhepo pazvivakwa, iyo inoshandiswa zvakananga mukuverenga EPA. Nenzira iyi, zviyero izvi zvinobatsira kunzwisisa zvinodiwa zvemaumbirwo emapango emwenje kuti agone kutsungirira mhepo. Pamusoro pezvo, zvinosimbisa kuverenga kweEPA mumamiriro ezvinhu anoshanda.
Mibvunzo Inonyanya Kubvunzwa
The Bottom Line
Kunzwisisa chiyero cheEPA kwakakosha pakuisa mwenje yekunze. Unofanira kuva nechokwadi chekuti huremu hwese hwezvinhu zvakaiswa padanda hahupfuure chiyero chayo chepamusoro cheEPA munzvimbo iyoyo. Zvikasadaro, kuchengetedzeka nekugadzikana kwehurongwa hwemwenje kuchakanganiswa.
Kunze kwemwenje yemapango, kana uchida kuunza mwenje yemazuva ano panze, sarudza mwenje ye LED. IP rating mhando dzakasiyana dzinoenderana zvakanyanya nemamwe mwenje wekunze. Saka, sarudza mhando yepamusoro zvigadzirwa zve LEDYi uye wedzerai purojekiti yenyu yemwenje padanho rinotevera. Pamusoro pezvo, tinopa garandi yemakore matatu kusvika mashanu pamidziyo yedu. Saka, taura nesu ASAP kuisa odha yako!
