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Isigaba sesi-3 – Iqondwa kanjani incazelo “yebanga lefrikhwensi elinganiselwe”

Bygezhi-tech July 14, 2024September 27, 2025

ibanga lefrikhwensi elinganisiwe: ibanga lefrikhwensi elinikezwe umshini ngumkhiqizi, ovezwa imikhawulo yawo ephansi nangaphezulu.

Ngakho-ke, ngincoma ukuthi umake imvamisa elinganiselwe njengo-50/60Hz ngokuqondile.
Therefore, I recommend marking the rated frequency as 50/60Hz directly.

clause 3

Clause 3 – How to understand the definition of “heating appliance”
Bygezhi-tech October 19, 2024October 7, 2025

heating appliance: appliance incorporating heating elements but without any motor. Before introducing this definition, we need to briefly introduce the electric heating elements commonly used in household electrical appliances. PTC heating element: PTC (Positive Temperature Coefficient) heating elements are widely used for various heating applications because of their self-regulating properties and safety features. Here are…

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Isigaba sesi-3 – Uyiqonda kanjani incazelo ye-“rated impulse voltage”
Bygezhi-tech July 15, 2024September 27, 2025

rated impulse voltage: I-voltage esuselwe ku-voltage elinganiselwe kanye nesigaba sokugcwala ngokweqile komshini, obonisa amandla okumelana ashiwo okufakwayo kwawo ngokumelene no-overvoltage wesikhashana. Kwabaqalayo, akudingekile ngempela ukuqonda incazelo engokomzimba yale ncazelo. Ukusetshenziswa okuyinhloko kwaleli xabiso le-voltage esilinganisweni ukunquma inani elilinganiselwe lemvume; ngokubhekisela kuThebula 15, inani elilinganiselwe le-impulse voltage linganqunywa ngokuqondile.Umusho ophezulu weThebula le-15 ubonisa ukuthi “Imishini ikusigaba…

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Isigaba sesi-3 – Iqondwa kanjani incazelo yegama elithi “clearance”
Bygezhi-tech August 27, 2024September 27, 2025

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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How are the creepage distances and electrical clearances of PTC heating element surfaces determined?
Bygezhi-tech December 11, 2024September 27, 2025

We are discussing here the second structure of the PTC heating element, PTC heating element structure please refer to the explanation of its definition. How is the creepage distance of the functional insulation at the location of the red circle in Figure 1 determined? We all know that NOTE 1 of TABLE 18 section has…

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Isigaba sesi-3 – Iqondwa kanjani incazelo ye-“supplementary insulation”
Bygezhi-tech August 4, 2024September 27, 2025

i-supplementary insulation: i-insulation ezimele isetshenziswa ngaphezu kokufakwa okuyisisekelo, ukuze kuhlinzekwe ukuvikeleka ekushaqekeni kukagesi uma kwenzeka ukwehluleka kokufakwa kwesisekelo I-insulation engaphandle kwe-insulation eyisisekelo futhi ezimele ku-insulation eyisisekelo, futhi ngokuvamile ifinyeleleka kumsebenzisi. I-supplementary insulation, njengoba negama lisho, ingeziwe, futhi ibhekisela ekufakeni okungeziwe ekufakeni okuyisisekelo. Lokhu kuhilela isimiso esiyisisekelo saleli zinga, okungukuthi isimiso sokuvikela okuphindwe kabili. Kunoma iyiphi…

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Clause 3 – How to understand the definition of “stationary appliance”
Bygezhi-tech October 13, 2024September 27, 2025

stationary appliance: fixed appliance or an appliance which is not a portable appliance. Stationary appliance includes fixed appliance and not a portable appliance. The characteristic of a stationary appliance is that once it is put into use, it will be placed in a fixed position. At the same time, the position of the appliances will…

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