NEMA 1:Iindawo ezivaliweyo ze-NEMA 1 ziyilelwe ukusetyenziswa ngaphakathi endlwini kwaye zibonelela ngokhuseleko ekudibaneni kwabantu kunye neendawo zombane ezitshajelwayo, eziphilayo.Ikwakhusela izixhobo kwi-debris ewayo (ubumdaka).
NEMA 2:Indawo ebiyelweyo ye-NEMA 2, kuzo zonke iinjongo, iyafana ne-NEMA 1 ebiyelweyo.Nangona kunjalo, umlinganiselo we-NEMA 2 unika ukhuseleko olongezelelweyo olubandakanya ukukhuselwa ekuthontsizeni ukukhanya okanye ukuchaphaza kwamanzi (ubungqina bokuthontsiza).
NEMA 3R, 3RX:Iindawo ezivaliweyo ze-NEMA 3R kunye ne-3RX zenzelwe ukusetyenziswa ngaphakathi okanye ngaphandle kwaye zikhusela emvuleni, kwiqhwa, kwikhephu, nakumdaka, kwaye zithintela ukubunjwa komkhenkce kwindawo ebiyelweyo.
NEMA 3, 3X:Iindawo ezivaliweyo ze-NEMA 3 kunye ne-3X azinamvula, azinethwa yimvula, kwaye azinathuli kwaye zenzelwe usetyenziso lwangaphakathi nangaphandle.I-NEMA 3 kunye ne-3X zichaza ukhuseleko olongezelelweyo eluthulini olungaphaya kwe-NEMA 3R okanye i-3RX ebiyelweyo.
I-NEMA 3S, 3SX:Iindawo ezivaliweyo ze-NEMA 3S kunye ne-NEMA 3SX zixhamla kukhuseleko olufanayo njenge-NEMA 3, nangona kunjalo, zibonelela ngokhuseleko xa ubumba umkhenkce kwindawo ebiyelweyo kwaye iya kuhlala isebenza xa igqunywe ngumkhenkce.
NEMA 4, 4X:Izivalo ze-NEMA 4 kunye ne-NEMA 4X zenzelwe ukusetyenziswa ngaphakathi okanye ngaphandle kwaye zibonelela ngokhuseleko olufanayo njenge-NEMA 3 ebiyelweyo kunye nokhuseleko olongezelelweyo ekungeneni kwamanzi kunye/okanye kumanzi aqondiswe ngombhobho.Ke, ukuba ufuna ukucoca indawo ebiyelweyo ye-NEMA 4, akufuneki ube nexhala malunga namanzi okonakalisa izinto zakho zombane.
NEMA 6, 6P:Inikezela ngokhuseleko olufanayo njengendawo ebiyelweyo ye-NEMA 4, i-NEMA 6 ibonelela ngokhuseleko ekuntywilisweni kwethutyana okanye ixesha elide (umlinganiselo we-NEMA we-6P) ukuya kubunzulu obumiselweyo.
NEMA 7:Kwakhona yakhelwe iindawo ezinobungozi, indawo ebiyelweyo ye-NEMA 7 ayinogqabhuko-dubulo kwaye yenzelwe ukusetyenziswa ngaphakathi (eyakhelwe iindawo ezinobungozi).
NEMA 8:Ukunikezela ngokhuseleko olufanayo njenge-NEMA 7 ebiyelweyo, i-NEMA 8 ingasetyenziswa ngaphakathi nangaphandle (eyakhelwe iindawo ezinobungozi).
NEMA 9:Iindawo ezivaliweyo ze-NEMA 9 zikhusela uthuli kwaye zenzelwe ukusetyenziswa ngaphakathi kwiindawo ezinobungozi.
NEMA 10:Iindawo ezivaliweyo ze-NEMA ezili-10 ziyahlangabezana nemigangatho ye-MSHA (uKhuseleko lweMigodi kunye noLawulo lwezeMpilo).
I-NEMA 12, 12K:Izivalo ze-NEMA 12 kunye ne-NEMA 12K zenzelwe injongo jikelele yosetyenziso lwangaphakathi.Iindawo ezivaliweyo ze-NEMA 12 kunye ne-12K zikhusela ekuthontsizeni nasekutshizeni kwamanzi, azikwazi ukumelana nomhlwa, kwaye azibandakanyi ukunkqonkqozwa (izithuba ezivulwe ngamanqindi ezingaphelelanga ezinokususwa ukuze zifake iintambo, iziqhagamshelo, kunye/okanye iiconduits).
NEMA 13:Iindawo ezivaliweyo ze-NEMA 13 zezenjongo jikelele, ukusetyenziswa endlwini.Zibonelela ngokhuseleko olufana nolwezivalo ze-NEMA 12, kodwa zinokhuseleko olongezelelweyo ekuthontsizeni kunye/okanye kwi-oyile etshiziweyo nezipholileyo.
*Qaphela: Indawo ebiyelweyo ngo-“X” ibonisa ukureyithwa okumelana nokuhlwa.
Ixesha lokuposa: May-09-2023