I-National Electrical Manufacturers Association, eyaziwa ngokuba yi-NEMA, ngumbutho wezorhwebo omele amashishini emifanekiso yombane kunye nezonyango.I-NEMA ibeka imigangatho yoluhlu olubanzi lwezixhobo zombane ukukhuthaza ukhuseleko, ukusebenza kakuhle, kunye nokutshintshisana.Omnye umgangatho obalulekileyo abathe bawuphuhlisa luhlelo lweNEMA oluvalekileyo, oluhlela iindawo ezivaliweyo ngokusekelwe kubuchule bazo bokumelana neemeko zokusingqongileyo zangaphandle.
Ukuqonda iNEMA 3R yokuHlola
Olunye uhlobo olunjalo luvalelo lwe-NEMA 3R.Olu phawu lubonisa indawo ebiyelweyo eyakhelwe ukuba isetyenziswe ngaphakathi okanye ngaphandle ukuze ibonelele ngomgangatho wokhuseleko kubasebenzi ngokuchasene nokufikelela kwiindawo ezinobungozi;ukubonelela ngenqanaba lokhuseleko lwezixhobo ezingaphakathi kwendawo ebiyelweyo ngokuchasene nokungena kwezinto eziqinileyo zangaphandle (ukungcola okuwayo);ukubonelela ngezinga lokukhusela ngokubhekiselele kwimiphumo eyingozi kwisixhobo ngenxa yokungena kwamanzi (imvula, i-sleet, ikhephu);kunye nokubonelela ngenqanaba lokhuseleko lomonakalo ekubunjweni kwangaphandle komkhenkce kwindawo ebiyelweyo.
Iimpawu eziphambili zeeNdawo ze-NEMA 3R
Iindawo ezivaliweyo ze-NEMA 3R, njengezinye iindawo ezivalekileyo ezilinganiswe nge-NEMA, zomelele kwaye ziyilelwe ukuhlala ixesha elide kwaye ziphile ixesha elide.Ngokuqhelekileyo zenziwe ngezinto ezithembekileyo ezifana nentsimbi engatyiwa okanye i-fiberglass-eyomelezwe ipolyester ukuze imelane nokuvezwa kwiimeko zemozulu ezinzima.Ezi zivalelo zihlala zibandakanya izinto zoyilo ezifana neengcingo zemvula kunye nemingxuma yokukhupha amanzi ukuthintela ukuqokelelwa kwamanzi kunye nokukhuthaza ukuhamba komoya, ngaloo ndlela kugcinwe ubushushu bangaphakathi kunye nokufuma kumanqanaba akhuselekileyo.
Kutheni ukhetha iNEMA 3R ebiyelweyo?Izinto eziluncedo kunye nezicelo
Ufakelo lwangaphandle
Ngokukwazi kwabo ukumelana nemvula, ikhephu, iliqhwa, kunye nokwakheka komkhenkce wangaphandle, izivalo ze-NEMA 3R lolona khetho lubalaseleyo lofakelo lombane lwangaphandle.Zihlala zisetyenziswa kwiisetingi ezifana neendawo zokwakha, izixhobo eziluncedo, iminyhadala yangaphandle, kunye nayo nayiphi na indawo apho izixhobo zombane zinokuvezwa kwizinto.
Ukukhuselwa kwiMicimbi yeMozulu
Ngaphandle nje kokubonelela ngokhuseleko kwizinto ezahlukeneyo zemozulu, ezi zivalo zinokunceda ukwandisa ubomi obude bezinto zombane ezigcinwe ngaphakathi.Ziyilelwe ukunciphisa ukungena kwamanzi kunye nokufuma, ngaloo ndlela kuncitshiswa umngcipheko weesekethe ezimfutshane zombane kunye nokusilela kwezixhobo ezinokubakho.
Ukusetyenziswa kwangaphakathi: Uthuli kunye nokuchasana nomonakalo
Ngelixa uyilo lwabo lujolise ikakhulu kusetyenziso lwangaphandle, iindawo ezivaliweyo ze-NEMA 3R zikwangqina ukuxabiseka kwendawo yangaphakathi, ngakumbi ezo ziqhele uthuli kunye nezinye izinto.Banceda ukugcina la masuntswana anokuba yingozi kude kumalungu anovakalelo ombane, ngaloo ndlela anceda ekuqinisekiseni ukusebenza kwawo ngokufanelekileyo.
I-NEMA 3R vs Olunye Uqikelelo lwe-NEMA: Ukwenza ukhetho oluLungileyo
Ukukhetha indawo ebiyelweyo ye-NEMA ibandakanya ukuvavanya iimfuno ezithile zofakelo lwakho lombane.Umzekelo, ukuba useto lwakho lukwindawo ehlala ifumana uxinzelelo oluphezulu lombhobho phantsi okanye ubukho bemathiriyeli eyonakalisayo, ungacinga ngokukhetha indawo ebiyelweyo enomgangatho ophezulu onje nge-NEMA 4 okanye 4X.Soloko uvavanya okusingqongileyo kwaye ukhethe indawo ebiyelweyo eyifaneleyo iimfuno zakho.
Uphononongo olululo: Ukusetyenziswa ngokukuko kweNEMA 3R ebiyelweyo
Cinga ngemeko yomboneleli wonxibelelwano wengingqi ofumana ukusilela kwezixhobo ngenxa yeemeko zemozulu.Ngokutshintshela kwiindawo ezivaliweyo ze-NEMA 3R, umboneleli ukwazile ukunciphisa kakhulu amaxabiso okusilela kwezixhobo, ukonyusa ukuthembeka kubathengi babo kunye nokugcina iindleko zokugcina kunye nokutshintsha.
Ukuqukumbela, iindawo ezivaliweyo ze-NEMA 3R zibonelela ngesisombululo esiguquguqukayo sokukhusela ufakelo lwakho lombane.Nokuba usebenza kwindawo enemozulu embi, indawo enothuli yangaphakathi, okanye kwindawo ephakathi, ezi zivalo zinokukunceda uqinisekise ukhuseleko lwesixhobo sakho kunye nobomi obude.Ngalo lonke ixesha khumbula, ukukhetha indawo ebiyelweyo elungileyo kuhamba indlela ende ekwandiseni ukusebenza kakuhle kunye nokuthembeka kofakelo lwakho lombane.
Gxininisa ibinzana elingundoqo: “Izibiyelo ze-NEMA 3R”
Inkcazo yeMeta: “Jonga iimpawu, izibonelelo, kunye nokusetyenziswa okusebenzayo kwe-NEMA 3R ebiyelweyo.Fumanisa ukuba ezi zindlu zizinzileyo zinokulukhusela njani ukufakelwa kombane kwimozulu embi, ukungcola, kunye nomonakalo onokwenzeka.
Ixesha lokuposa: Jul-19-2023