clause 3

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

Byforest July 14, 2024August 31, 2024

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

Isigaba sesi-3 – Uyiqonda kanjani incazelo ye-“protective impedance”
Byforest August 10, 2024August 31, 2024

i-impedance yokuvikela: i-impedance exhunywe phakathi kwezingxenye ezibukhoma nezingxenye ezifinyelelekayo ezifinyelelekayo zezakhiwo zesigaba II ukuze okwamanje, ekusetshenzisweni okuvamile nangaphansi kwezimo ezingaba zephutha entweni, ikhawulelwe kunani eliphephile. Icala 1:Isimo sokuqala ngokuvamile yizimo ezithile ezidinga ukunikezwa kwamandla kagesi aphansi, njengemikhiqizo esebenza nge-adaptha. I-voltage ephumayo ye-adaptha yi-DC12V, DC24V noma i-DC5V. Lezi zingxenye ezinama-voltage aphansi ngokuvamile zingathintwa abasebenzisi ngenxa yokuthi…

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Clause 3 – How to understand the definition of “heating appliance”
Byforest October 19, 2024October 21, 2024

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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Clause 3 – How to understand the definition of “detachable part”
Byforest November 3, 2024November 3, 2024

detachable part: part that can be removed or opened without the aid of a tool, a part that is removed or opened in accordance with the instructions for use, even if a tool is needed for removal, or a part that does not fulfil the test of 22.11.NOTE 1 If for installation purposes a part…

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Clause 3 – How to understand the definition of “protective device”
Byforest January 27, 2025January 27, 2025

The standard emphasizes “abnormal operation” here. Only devices that operate under “abnormal operation” conditions can be defined as protective devices. Therefore, there are many types of protective devices, including overheating protection devices, overcurrent protection devices, and overpressure protection devices. Overheating protection devices include the thermal link, non- self-resetting thermal cut-out, self-resetting thermal cut-out, thermal cut-out,…

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Clause 3 – How to understand the definition of “combined appliance”
Byforest November 3, 2024November 3, 2024

combined appliance: appliance incorporating heating elements and motors. We know that this standard mainly protects against the following five types of dangers, which are electric shock, mechanical damage from moving parts, thermal damage (such as burns), fire damage, chemical and biological damage. Generally speaking, thermal damage is caused by electric heating elements, and mechanical damage…

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Isigaba sesi-3 – Uyiqonda kanjani incazelo ye-“rated impulse voltage”
Byforest July 15, 2024August 31, 2024

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…

Read More Isigaba sesi-3 – Uyiqonda kanjani incazelo ye-“rated impulse voltage”

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