Ithebula 17 kanye neThebula 18 le-IEC 60335-1
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isisekelo se-insulation: kanye ne-nbsp;i-insulation isetshenziswa ezingxenyeni eziphilayo ukuze kunikeze isivikelo esiyisisekelo ngokumelene nokushaqeka kukagesi Njengoba kukhonjisiwe esithombeni esingakwesokunxele ngezansi, isithombe sekhava engezansi yefeni, futhi isithombe esingakwesokudla isithombe esingenayo ikhava engezansi. Isikhumba socingo oluluhlaza nolunsundu ngaphakathi kwentambo yokuhlinzeka esithombeni esilungile singabhekwa njengokwahlukanisa okuyisisekelo. Ngesikhathi esifanayo, izikhumba zocingo ezimhlophe, ezibomvu nezimnyama ekushintsheni okuxhunywe kugobolondo elimnyama nazo zingahlulelwa…
Into esetshenziswayo yesigaba III: into esetshenziswayo lapho ukuvikeleka kokushaqiswa kukagesi kuncike ekunikezeni amandla kagesi aphansi kakhulu futhi lapho ama-voltage aphezulu kunalawo okuphepha kwamandla kagesi aphansi kakhulu angakhiqizi.QAPHELA Ukufakwa okuyisisekelo kungase kudingeke ngaphezu kokuhlinzekwa kwa-SELV. Bheka ku-8.1.4. Ukuze uqonde lokhu, udinga ukuqonda kuqala ukuthi yini ukuphepha kwamandla kagesi aphansi kakhulu(SELV). Sicela ubheke incazelo kanye nencazelo ye-SELV….
Ukugcizelelwa lapha kuyingxenye yokwakhiwa kwento esebenza ngogesi, engahlangabezana nezidingo zokufakwa okuphindwe kabili noma ukufakwa okuqinisiwe. Ngakho-ke, into esetshenziswayo Yekilasi I futhi izoqukatha ukwakhiwa Kwekilasi II .Isibonelo: Ihhavini eboniswe emfanekisweni ongezansi isebenzisa igobolondo lensimbi kanye nephini lokushintsha lepulasitiki. Uma umsebenzisi ethinta inkinobho yokushintsha, ifindo lenziwe ngezinto ezivikelayo futhi alikwazi ukumiswa. Ukuvikela ngokumelene nokushaqeka kukagesi kungancika kuphela…
ibanga le-creepage: ibanga elifushane kakhulu endaweni yokufakwa phakathi kwezingxenye ezimbili ze-conductive noma phakathi kwengxenye ye-conductive nendawo efinyelelekayo. Izinkokhelo zingasakazwa ngendlela eqondisayo emoyeni, ngaleyo ndlela zenze umsinga. Lona incazelo yokukhishwa. Izindleko zingase futhi zisakaze ngokusebenzisa impahla yokuvikela uqobo, ngoba akukho mpahla evalwe ngokuphelele. Umehluko wamanje owakheke phakathi kwama-electrode amabili lapho ama-electrode amabili anamandla ahlukene esetshenziswa ezinhlangothini…
Into esetshenziswayo yekilasi II: into esetshenziswayo lapho ukuvikeleka kokushaqeka kukagesi kungancikile insulation eyisisekelo kuphela kodwa lapho kunikezwa khona izinyathelo zokuphepha ezengeziwe, njengokuthi double insulation noma reinforced insulation, akukho ukuhlinzekwa komhlaba ovikelayo noma ukuthembela ezimeni zokufakwa. QAPHELA 1 Isisetshenziswa esinjalo singaba ngolunye kulezi zinhlobo ezilandelayo:– into esetshenziswayo enendawo evalekile ehlala isikhathi eside neqhubekayo yezinto ezivalelayo ezimboza…
clearance: ibanga elifushane emoyeni phakathi kwezingxenye ezimbili ze-conductive noma phakathi kwengxenye ye-conductive kanye ne-indawo efinyelelekayo. Ukuhlanzeka kuwumqondo obaluleke kakhulu. Ukuze siqonde imvume, sidinga ukuphinda sikusho ukuthi akukho lutho oluvalwe ngokuphelele, futhi umoya ungaqhuba nogesi. Lapho i-voltage iphezulu kakhulu, i-current izoqhutshwa emoyeni. Ukushaywa kombani ngesikhathi sokuduma kwezulu kuyisibonelo esivamile sombani oshaya emoyeni. I-voltage yombani iphezulu kakhulu,…
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