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Ukuchaza Amasistimu Elisha Ngokwesikhodi Sokuvimbela Esinemihlambi
Ukuchaza umsindo wakho weshisha kabefore ukufaka isikhodi sokuvimbela esinemihlambi kuyadingeka ukuhlakula ukuvimbela kwezinkinga futhi ukuthuthukisa ukusebenza. Ukuchaza kwezinkambo zokufundisa kungakhombisa izinkinga zokungafani nangokuphelele kwezinkinga zokuvimbela.
Ukufanana Kwamapaneli, Umnyaka Wokubamba, Nokuchaza Kwezindawo
Hlola iphaneli yakho yezilumkiso ngokujwayelekile emuva kokufaka isikhombisa sesilumkiso esishintsha. Amaphaneli amadala amaningi ayafana nokungafanele kusetyenziswa kwemithombo yamandla, ngoba mayelwe ukungakwazi ukuthenga isikhondlo esifuneke ukuguqula noma umkhakha wokubeka okufanele. Amaphaneli amadala amaningi kufanele abe yizinkulu noma zibuyiselwe kabusha. Uma kuhlola izihluzi, qhathanisa iminyaka yazo nezinhlobo zezinto ezisetyenzisiwe. Izihluzi zomthombo wamandla we-aluminum ozalwa ngaphambi kwe-1970 ayalahlekelwa futhi ziyabika izinkinga zokuphepha. Lokhu kuyafana nezihluzi zokubeka kwe-knob and tube. Izihluzi zomthombo wamandla ozalwa ngokulahlekelwa kwezimithombo zokuphepha kufanele zibuyiselwe kabusha. Qiniseka ukuthi izinqumo zangaphakathi ziyafanele ukuthatha izimali zezixhuma zomthombo wamandla esishintsha futhi ziyafanele ukuthi zihlanganise nezinkotho zokubeka ozofakwa ngaphakathi kwe-silumkiso esishintsha.
Ukuchaza Ukuthatha Isilinganiso Sokuqonda Nokukhetha Isilumkiso Sesilumkiso Esishintsha Sokuthatha Isilinganiso (MCB vs. MCCB).
Ukufumana ukuchaza okuhle kakhulu, kufanele uqonde ukuthi ubheke imithombo yokuqonda ekuhle kwe-NEC Article 220, angakwazi ukuthi uphinde uphinde amanombolo asebenzayo. Lokhu kuyisisekelo sokukhetha izibhreka ezifanele. Izibhreka zeminye imikhumbi yezinhlangano ziyafanele kubunye obunzima bekhaya okungafika ku-125 amaphe, kodwa kuzo zonke izibhreka zokusebenza ngokuphelele/izibhreka zokusebenza ngokuphansi, noma izindlela ezenzeka kahle njengezibhreka zokugcina izihlathi zezivehikili zokugcina (EV) noma izinhlangano ezenzeka kahle njengezinhlangano zokugcina izihlathi zokugcina (HVAC), sizofuna ukusebenzisa izibhreka zokugcina izihlathi zokugcina (MCCB). Ukukhetha isibhreka esikhulu kakhulu sizoba nokuthi sibhreka ngokungafanele futhi kuzoba nezinkinga zokusebenza, ngakho ukukhetha isibhreka esincane kakhulu sizoba nokuthi isibhreka sibhaleka futhi sibhaleka. Indlela enenhle yokuqondisa ukukhetha isibhreka kukuthi ubheke ukusebenza kwakho ngokwesikhathi sokusebenza okuphelele, angakwazi ukuthi ubheke ukusebenza okungafanele kakhulu.
Ukuvavanya ukuxhuma kwe-Neutral ne-Earth, nokuthi kunezindawo ezinamandla
Ukubheka kwakho kwezinhlangano zezilumkiso kufanele kufaka ukubheka kuzo zonke izinyathelo zokukhula noma ukuphakama kwezindawo zokugcina, njengoko kufanele kube khona ukubheka ukuthi kunezinkambo zokukhula kwezindawo zokugcina, njengoba kungabikho ukuthi kunezinkambo zokukhula kwezindawo zokugcina ngokwesibonelo. Lokhu kubalulekile kakhulu kwezinhlangano zezilumkiso ezihlukaniswe phakathi kwe-120/240V ngoba kungabikho izinkinga ezingaphansi kakhulu uma izindawo zokugcina zizwa ngokukhula ngokungafanani kwezinhlangano. Funa futhi ukuthi ubheke kwezindawo zokugcina njengoba kubhalwe ku-IEEE 142. Ukubhekwa okungaphezulu kwe-25 ohms kusho ukuthi ukugcina kwezindawo zokugcina akusebenzi kahle, okongena emehlweni yokubhishwa ngokuluma nokuvula kwezinto zokusebenza. Ekugcineni, qiniseka ukuthi iphaneli inezimali ezingu-20% ezimayelana nezinhlangano zokugcina emva kokufaka konke izinto zokusebenza. Izimali zokugcina zivumela ukufaka izinto zokusebenza emva kahle, njengoba zivumela amaduli wezinhlangano zokubheka ukusebenza ngaphandle kokuvula kwezimali zokugcina.
Ukufaka kwezinhlangano zezilumkiso zokubheka ngokwesikhundla ngokwesikhundla nokubheka ngokwesibonelo
Izinguquko Zokugxila: Amandla, Ukuxhumana, Nokugxila Kwesikhathi Sokuphela
Amacircuit breaker esihlombe asikhethe amathathu amathuba okugxila. Kuyi-connection yamanzi/umsebenzi wamandla, isihlombe sesikhathi sokuphela, kwaye ngakumbi, isihlombe sokuxhumana. Amacircuit breaker esihlombe asikhethe abanamathuba okusebenza nasezinhloko zokuzilungisa, okubhekisele ukuthi badinga amandla futhi. Ngaleso sikhundla, amacircuit breaker amahle akadingi le-connection yethathu. Ngakho-ke, uma isihlombe sesikhathi sokuphela sifanele, kusukela ukuthi izinye zezinguquko zokugxila zizobhekiselwa njengokungafanele. Uma kugxilwa, sebenzisa izindlela zokugxila eziyisithembiso sikaUL, noma ubheka ukuthi umbala omnyama uyisikhathi sokuphela, umbala obuluhlaza uyisikhathi sokuphela, kanye nomthubi weyellow/green uyisikhathi sokuphela. Uma kugxilwa isihlombe sokuxhumana, sebenzisa isihlombe sokuxhumana esisodwa nesishaywa ngokufanayo ukuze ushuthele kusuka kwezimfushane zokuxhumana zemvelo. Futhi, qinisa ukuthi uzibeka ngokuchaza umthwalo wendawo yokuphatha. I-Electrical Safety Foundation ibiza ukuthi ukungaqinisa izihlombe zokugxila, okubhekisele ukuthi kubhekisele ukuxhumana kwesikhathi sokuphela nokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela kwezindawo, kuyisikhathi sokuphela......
Amaphuzu Okusebenzisa Ukugcina-Ukugcina, Amaphuzu Okuphatha Isibonelo Sokubona, Nokufaneleka Kwe-NEC/IEC
Kabefore ukuzama ukwenza umsebenzi wokugcina amandla, kufanele uqinisekise ukuthi amandla ayisikhiwe, futhi akukho amandla okugcina apho kunezinkampani zokugcina ngokusebenzisa i-CAT IV multimeter. Kufanele uqinisekise ukuthi uyasebenzisa izindlela zokuvimbela nokubhala isithombe (Lockout-Tagout) esikhundleni se-OSHA 1910.333, futhi uqinisekise ukuthi izinhlobo zokugcina zokuphakama nezinhlobo zokugcina zezibuko zizisikhiwe ngumkhawulo wamandla. Kufanele ube nesikhumba esincane sika-00 esinezinkampani zokuvimbela ngokwesiliva, futhi ubhekele isikhumba sokugcina esihlukaniswe ngokwesiphambano sokugcina (arc flash face shield) esiqinisekiswe ukuthi sisebenza ngokwesiphambano sokugcina esikhundleni sesikhumba sokugcina. Izindaba ezintsha zika-OSHA zibonisa ukuthi izinqumo zokulinda umuntu zokugcina ziyakhula ukugcina kwezinto zokugcina ngokuphakeme kwe-72%. Uma usebenzisa izinhlobo zokugcina zaseNorth America, qinisekisa ukuthi izinhlobo zokugcina ziyakwazi ukuvimbela izinhlobo zokugcina ngokuhambisana ne-NEC 110.9. Uma usebenzisa izinhlobo zokugcina ezingaphandle kaseNorth America, qinisekisa ukuthi izinkampani ziyahambisana nezinhlobo zokugcina zokuvimbela okuqukethwe kwe-60947-2, futhi qinisekisa ukuthi izinhlobo zokugcina zokuvimbela zokuvimbela kwezinhlobo zokugcina ziyahambisana ngokuphelele nezinhlobo zokugcina zokuvimbela.
Imiphumela emibili eminingi emithathu yokuqala kokuqwalisa izinkampani zokusebenza kwemithambo - Nangokuthi ukuthi yini okufanele ukwenziwe
Ukungakhathali umthambo wokubuyela: 45% yeziphulo zemithambo yezinkampani ezinamandla ziyaphulwa ngokungabikho komthambo wokubuyela, okuhlanganiswa komthambo wokubuyela, noma umthambo wokubuyela awunakho ubukhulu obulinganayo. Indlela yokusolveka: Kufanele isibhakabhaka somthambo wokubuyela sifakwe ngokufanayo nesikhombisa sokuguqula isibhakabhaka, futhi umthambo wokubuyela kufanele kubonakaliswe ukuthi kunezinhlobo zokubuyela kanye nokubhekwa ukuthi kunezinhlobo zokubuyela zokugcina 10-12 AWG kabefore isibhakabhaka sivulekwe.
Ukuphakanyiswa: Uma imithambo yedatha iyadluliswa ngokufanayo nesikhombisa sokusebenza kwezinhlobo ezinkulu, kunezinhlobo ezinkulu zokuphakanyiswa. Ukuthi ukuphakanyiswa kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo kwezinhlobo k......
Amathuluzi Okufakwa Kwamafirmware Angazwa: Amafirmware angafakwanga kuyisibonelo sokuthi amafailure okuqondisa kuyizigaba ezingu-30%. Ukuphatha: Phambi kokuthi isistimu isebenzise, faka konke amafirmware okufakwa okudingekayo ngumshini wokwenza. Musa ukubheka isistimu njengoba iyakufaka ngokwakho emva kokuthi isistimu sifakwe. Sebenzisa i-infrared thermography ngokushesha emva kokuthi isistimu sithunywa ukuze ubone izimo ezingavumelekile zokungafakwanga kahle kwezinqamulelo ne-harmonic distortion.
Ukwenza Isistimu Yokuvimbela Kwe-Circuit Yokwesibonelo Ngokwesikhundla
Ukugxilana Kwesikhundla Se-Wi-Fi Ne-App (Tuya, SmartThings, Matter)
Faka i-router noma i-mesh node ngaphakathi kwezinsukwane ezintathu zokugcina isikhundla sesikhumba, ngaphakathi kwezinsukwane ezingama-30. Qiniseka ukuthi azikho zonke izinto eziyisibonelo esizimele kuzo, njengokuthi ziyisiliva, izinkampani zezinkampani ezinkulu, njll., ngoba zihlukisa izisignal zesi-2.4 GHz esizisebenzisa ngazo izibhreka zesmart. Uma ungenisa izibhreka zesmart kuma-system ephambanayo, kubalulekile ukusebenzisa kuphela i-band yesi-2.4 GHz ngoba izibhreka eziphambanayo eziningi zisemthethweni kuphela i-Wi-Fi yesi-2.4 GHz. Ngaphezu kwalokho, qiniseka ukuthi izithombe zakho ze-Matter zinezifundo ezitsha ze-Matter 1.3 ukuze zibe nesixokozelo esihle. Izinkinga eziningi eziphawula abasebenzisi ziyaphaqa ngokungafanele kwezithombe, ngakho ke kubalulekile ukuzimela konke ngaphambi kokwenza. Qiniseka ukuthi isistimu yakho inovolthe ezifanele ekhaya (Ngokujwayelekile ivolthe yekhaya iyisikhathi sokuqala si-120/240V) ukuze usivikele isizinkinga esingasemthethweni.
Ukuphatha okuhle, Ukuvuselela Kwesifundo, Futhi Ukuseta Kwezilumkiso Zokuxhumana Ngokushesha Nokulungiselela Okuphambili
Ngokujulile kuzo zonke izinhloso, izinhloso zezimithandazo kufanele zihlanganiswe ngokuphelele. Ukuphendula ngokuhambisana kwe-±3% ngokwesikhundla kufanele kubhekwe ukuthi izimo zemvelo ziyasibeka, futhi izinhloso zokuhlanganisa ezinye zokuhlanganisa kufanele zibe yizinkinga ezingafanele. Kufanele kuvulekwe ukuthinteka kwesifundo esingaphansi sokuthinteka ngokuzenzakalela ukuze kubhekwe ukuthi izinkinga zokungasebenzi kuzwakaliseke ngokushesha. Ngokwesikhundla se-Grid Security Report esedlule, izinkinga zokungasebenzi kwezinkambo zokusebenza kwezindawo zokugcina kwe-grid ziyisishiyagalombili (66%) zezinkinga zokungasebenzi kwezindawo zokusebenza kwe-grid zokugcina ngezifundo ezingadlula. Kukhulukana ukuthi kubhekwe izilumkiso zokubona ngokushesha kanye nokuthi kubhekwe ngokushesha kwezinkinga zokunqamuka okungenani kwezimini eziyisikhombisa (15) kanye nokunqamuka okungenani kwe-110% yokubala kokubili, ukususa kwezindlela zokusebenza okungenani kwe-90% yokusebenza kwezindlela zokusebenza, nokususa kwezindlela zokusebenza okungenani kwezintathu ngomhla wokusebenza. Izinkambo ezintsha zinamaqondiso okususa izindlela zokusebenza okungasho kungakhethwa ukususa izindlela zokusebenza ngeminyaka eyinkulu yokuqala yezindlela zokusebenza. Ngale ndlela, izilungiselelo zokwenza ngokwamanje zizishiyiselwa ngokuphela kwe-40%, futhi ziqhubeka ngokuphela ngokuhambisana ne-NEC 210.20(A) yokuqala yezindlela zokusebenza.
Imibuzo Evame Ukubuzwa
Ukuthi ukubhalwa kwe-paneli yezilwanyana kuyisiphi isidingo kabefore ukufaka izibhrekha zezilwanyana zokusebenza ngokushesha?
Ukubhalwa kwe-paneli yezilwanyana kuyisiphi isidingo sokuvumela ukugxilwa ngokuphelele ngezinkimbinkimbi ezinzima. Imapaneli yezilwanyana engaphansi kwezindawo zokubhalwa nezindlela zokubhalwa, okuthi kuzodingeka ukwenza izindlela zokubhalwa futhi ukuguqula imapaneli kabefore ukugxilwa kwezibhrekha zezilwanyana zokusebenza ngokushesha.
Ukuthi ukubhalwa kwezilwanyana zokusebenza ngokushesha kuyisiphi isidingo?
Izibhrekha zezilwanyana zokusebenza ngokushesha zingabhalwa ngokuphelele ngokubhalwa kwezilwanyana njengoba kuchazwa ku-NEC Article 220. Lokhu kusukela ukungabhalwa kwezibhrekha ngokuphelele ngokusebenzisa izilwanyana zokusebenza ngokuphelele, kodwa ngokubhalwa kwezilwanyana zokusebenza ngokuphelele ngokuphathelene nokusebenzisa ngokuphelele, kungakhathaliseki ukubhalwa kwezibhrekha ngokuphelele ngokuphathelene nokusebenzisa ngokuphelele.
Kuziziphi izinyathelo ozinokuzenza ukuze izibhrekha zezilwanyana zokusebenza ngokushesha zifakwe ngokuphelele ngokuphelele futhi ngokuphathelene nomthetho?
Uma uthanda ukuzimela ngamathuluzi njenge-Lockout-Tagout futhi uqinisekise ukuthi uyasebenzisa imithuluzi ye-NEC/IEC, lokho kufanele kube yinkulu. Yeka kuphela i-PPE yakho eyidingekayo futhi uqinisekise ukuthi amabrekha ayisilinganisiwe ngokwesilinganisi sokuvula okuphelele kubonakalisa ukuthi kunezinkinga zokugcina.
Kuzimele izimfushane ezingaphakathi kwezinye zezinkinga ezinkulu zokufaka amabrekha amashini?
Ukuhlonipha umkhondo wokunquma, ukukhupha ukuthi kunezinkinga zokugcina, nokungakhathali ukuthintela i-firmware kabefore ukuguqula kuzimele izinkinga ezingaphakathi kwezinye. Ukuze usivikele isikhundla sokwenza izinkinga, kufanele lezi zindlela zisebenziswe.