Amafomu okubeka phansi kanye nezidingo eziyisisekelo zamasistimu okusabalalisa amandla kagesi aphansi Ukuze usebenzisane namadivayisi okuvikela umbani afana nedivayisi yokuvikela ukukhuphuka kwamagagasi  kumasistimu kagesi we-voltage ephansi ukuze akhiphe umbani, ukubeka phansi kumasistimu okusabalalisa amandla we-low-voltage kufanele kuhlangabezane nezimfuneko ezilandelayo: 1. Izinhlobo zokubeka phansi zesistimu ephansi zingahlukaniswa zibe izinhlobo ezintathu: TN, TT, kanye ne-IT. Phakathi kwabo, uhlelo TN zingahlukaniswa zibe izinhlobo ezintathu: TN-C, TN-S kanye TN-C-S. 2. Ifomu lesisekelo sesistimu yokusabalalisa amandla aphansi-voltage kufanele inqunywe ngokuvumelana nezidingo ezithile zokuvikela ukuphepha kukagesi kohlelo. 3. Uma isisekelo esivikelayo kanye nesisekelo esisebenzayo sisebenzisa i-conductor yophansi efanayo, izimfuneko ezifanele zomqhubi ophansi ovikelayo zizohlangatshezwana nazo kuqala. 4. Izingxenye eziveziwe eziqhutshwayo zokufakwa kukagesi ngeke zisetshenziswe njengoxhumano lwenguquko yochungechunge lwamakhondakta okuvikela umhlaba (PE). 5. Umqhubi womhlaba ovikelayo (PE) uzohlangabezana nalezi zidingo ezilandelayo: I-1.Umqhubi womhlaba ovikelayo (PE) uzoba nesivikelo esifanele ngokulimala komshini, ukulimala kwamakhemikhali noma kwe-electrochemical, imiphumela ye-electrodynamic kanye ne-thermal, njll. 2. Izinto zikagesi ezivikelayo kanye nezinto ezishintshayo ngeke zifakwe kusekethe ye-protective earth conductor (PE), kodwa izindawo zokuxhuma ezinganqanyulwa kuphela ngamathuluzi zivunyelwe. 3.Uma usebenzisa amathuluzi okuqapha kagesi ukuze kutholwe phansi, izingxenye ezikhethekile ezifana nezinzwa ezisebenzayo, amakhoyili, ama-transformer amanje, njll. akufanele zixhunywe ochungechungeni kumqhubi wokuvikela ovikelayo. 4. Uma umqhubi wethusi exhunywe kumqhubi we-aluminium, idivayisi ekhethekile yokuxhuma yethusi ne-aluminium kufanele isetshenziswe. 6. Indawo ephambanayo ye-protective grounding conductor (PE) kufanele ihlangabezane nemibandela yokunqanyulwa kwamandla okuzenzakalelayo ngemva komjikelezo omfushane, futhi ingamelana nokucindezeleka komshini kanye nemiphumela yokushisa ebangelwa iphutha elilindelekile lamanje ngaphakathi kokusikwa- isikhathi sokuphelelwa yisikhathi kwento evikelayo. 7. Ubuncane bendawo ephambanayo yomqhubi womhlaba ovikelekile (PE) izothobelana nezinhlinzeko ze-Athikili 7.4.5 yaleli zinga. 8. I-protective earth conductor (PE) ingase ibe nekhondaktha eyodwa noma ngaphezulu kwabalandelayo: 1.Ama-conductors kumakhebuli ane-multi-core 2.Amakhondaktha avaliwe noma angenalutho okwabelwana ngawo namakhondaktha abukhoma 3.Amakhondaktha angenalutho noma afakwe ngaphakathi ukuze kufakwe izinto ezingaguquki 4.Amajakhethi ekhebula lensimbi namakhebula kagesi ekhondatha ahlanganayo ahlangabezana nokuqhubeka kukagesi okuguquguqukayo nokuzinza ngokushisa okushisayo 9. Izingxenye zensimbi ezilandelayo ngeke zisetshenziswe njengezikhondatha zomhlaba ezivikelayo (PE): 1.Ipayipi lamanzi lensimbi 2.Amapayipi ensimbi aqukethe igesi, uketshezi, impushana, njll. I-3.I-flexible or bendable metal conduit 4.Izingxenye zensimbi eziguquguqukayo 5. Intambo yokusekela, ithreyi yekhebula, i-conduit yokuzivikela yensimbi

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Isikhathi sokuthunyelwe: Apr-28-2022