Ukukhetha indawo ebiyelwe kubalulekile uma kuziwa ekuqinisekiseni ukuphepha kwezindawo zezimboni, ikakhulukazi izindawo eziyingozi. Izivalo zezindawo eziyingozi zenzelwe ukuvikela izinto zikagesi kumagesi aqhumayo, uthuli nezinye izici zemvelo. Lo mhlahlandlela uzokusiza ukuthi uhlole izinto eziyinkimbinkimbi zokukhetha aindawo evalekile eyingozilokho kulungele izidingo zakho ezithile.
Qonda indawo eyingozi
Ngaphambi kokungena enqubweni yokukhetha, kuyadingeka ukuqonda ukuthi iyini indawo eyingozi. Lezi zindawo zihlukaniswa ngokuya ngokuba khona kwamagesi avuthayo, umhwamuko noma uthuli. Amasistimu wokuhlukanisa ngokuvamile ahlanganisa:
- Indawo 0: Indawo lapho imvelo yegesi eqhumayo ikhona ngokuqhubekayo noma isikhathi eside.
- Indawo 1: Indawo lapho umoya wegesi eqhumayo ungase ube khona ngesikhathi sokusebenza okuvamile.
- Indawo yesi-2: Umkhathi wegesi eqhumayo cishe awunakwenzeka ngesikhathi sokusebenza okuvamile, futhi uma kwenzeka, uzoba khona isikhathi esifushane kuphela.
Indawo ngayinye idinga uhlobo oluthile lwendawo ebiyelwe ukuze kuqinisekiswe ukuphepha nokuhambisana nemithethonqubo.
Okucatshangelwayo Okubalulekile Ekukhetheni Izindawo Ezibiyelwe Ngezindawo Eziyingozi
1. Ukukhetha Okubalulekile
Impahla yecala ibalulekile ekuqineni nasekuphepheni. Izinto ezijwayelekile zifaka:
- Insimbi engagqwali: Inikeza ukumelana nokugqwala okuhle kakhulu, ilungele izindawo ezinokhahlo.
- I-Aluminium: Ingasindi futhi imelana nokugqwala, kodwa ingase ingazifaneli zonke izindawo eziyingozi.
- I-Polycarbonate: Inikeza ukumelana nomthelela omuhle futhi ngokuvamile isetshenziswa ezindaweni ezinokhahlo oluncane.
Ukukhetha impahla efanele kuzoncika ezingozini ezithile ezikhona endaweni okuyo.
2. I-Ingress Protection (IP) Level
Isilinganiso se-IP sibonisa ikhono lendawo ebiyelwe ukumelana nokugxambukela kothuli namanzi. Ezindaweni eziyingozi, isilinganiso se-IP esiphezulu ngokuvamile siyadingeka. Bheka indawo ebiyelwe enesilinganiso se-IP okungenani se-IP65 ukuze uqinisekise ukuvikeleka othulini namajethi amanzi anengcindezi ephansi.
3. Izindlela zokuvikela ukuqhuma
Kunezindlela ezahlukene zokuvikela ukuqhuma ezitholakalayo, okuhlanganisa:
- I-Explosionproof (Ex d): Idizayinelwe ukumelana nokuqhuma ngaphakathi kwendawo ebiyelwe futhi ivimbele amalangabi ukuthi angaphumi.
- Ukuphepha Okuthuthukisiwe (Ex e): Qinisekisa ukuthi okokusebenza kuklanyelwe ukunciphisa ingozi yomlilo.
- Ukuphepha Kwangaphakathi (Ex i): Ikhawulela amandla atholakalayo okuthungela, iyenze ifanele izinhlelo zokusebenza ze-Zone 0 kanye ne-Zone 1.
Ukuqonda lezi zindlela kuzokusiza ukuthi ukhethe indawo ebiyelwe ehlangabezana nezidingo ezithile zezindawo eziyingozi.
4. Usayizi nokucushwa
Indawo ebiyelwe kufanele ilinganiswe ukuze ifake okokusebenza kuyilapho ivumela ukungena komoya ngendlela efanele kanye nokunqanyulwa kokushisa. Cabangela ukwakheka kokufaka kwakho futhi uqiniseke ukuthi indawo ebiyelwe ifinyeleleka kalula ukuze ilungiswe futhi ihlolwe.
5. Isitifiketi Nokuhambisana
Qiniseka ukuthi indawo ebiyelwe ihlangabezana nezindinganiso ezifanele nezitifiketi, njenge-ATEX (ye-Europe) noma i-NEC (ye-United States). Lezi zitifiketi zibonisa ukuthi indawo ebiyelwe ihloliwe futhi ihlangabezana nezidingo zokuphepha ezindaweni eziyingozi.
6. Izimo zemvelo
Cabanga ngezimo zemvelo lapho ikhabhinethi izofakwa khona. Izinto ezinjengamazinga okushisa adlulele, umswakama, nokuchayeka kumakhemikhali kungaba nomthelela ekukhethweni kwezinto ezivalekile kanye nomklamo.
Ekuphetheni
Ukukhetha okulungileindawo evalekile eyingozikuyisinqumo esibalulekile esithinta ukuphepha nokuhambisana nezimo zezimboni. Ngokucabangela izinto ezinjengokukhethwa kwezinto, isilinganiso se-IP, indlela yokuvikela ukuqhuma, usayizi, izitifiketi nezimo zemvelo, ungenza ukukhetha unolwazi lokugcina abantu nezinto zokusebenza ziphephile. Qiniseka ukuthi uthintana nochwepheshe futhi ulandele imithetho yendawo ukuze uqinisekise ukuthi indawo yakho ebiyelwe eyingozi ihlangabezana nazo zonke izindinganiso zokuphepha ezidingekayo.
Isikhathi sokuthumela: Oct-25-2024
