clause 3

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 “electronic component”
Bygezhi-tech October 5, 2025

electronic circuit: circuit incorporating at least one electronic component. The standard references electronic circuits in clause 19.11, clause 19.11.1, and clause 22.5. These requirements are additional to those for electronic circuits. The standard recognizes that electronic circuits alone cannot provide adequate protection. Electronic circuits may be susceptible to interference and malfunction, or they may be…

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Clause 3 – How to understand the definition of “PTC heating element”
Bygezhi-tech December 11, 2024October 4, 2025

PTC heating element: element intended for heating consisting mainly of positive temperature coefficient resistors that are thermally sensitive and have a rapid non-linear increase in resistance when the temperature is raised through a particular range. As the temperature increases, the resistance of the heating element of the PTC heating element increases. The relationship between temperature…

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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 “thermal cut-out”
Bygezhi-tech December 23, 2024September 27, 2025

thermal-cut-out: device which during abnormal operation limits the temperature of the controlled part by automatically opening the circuit, or by reducing the current, and is constructed so that its setting cannot be altered by the user. There are three key provisions here. First, the thermal cut-out is a heat-sensing element, second, it can only be…

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Clause 3 – How to understand the definition of “battery-operated appliance”
Bygezhi-tech December 21, 2024September 27, 2025

(IEC 60335-1 Ed. 5.1) battery-operated appliance: appliance deriving its energy from batteries enabling the appliance to perform its intended function without a mains connection.(IEC 60335-1 Ed. 6)battery-operated appliance: appliance deriving its energy from batteries enabling the appliance to perform its intended function without a supply connectionNote 1 to entry: A battery-operated appliance can have a…

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Clause 3 – How to understand the definition of “non-self-resetting thermal cut-out”
Bygezhi-tech January 10, 2025September 27, 2025

non-self-resetting-thermal cut-out: thermal cut-out that requires a manual operation for resetting, or replacement of a part, in order to restore the current.NOTE Manual operation includes disconnection of the appliance from the supply mains. The thermal cut-out is equipped with a temperature-sensitive component, typically a bimetallic strip or a thermistor, which reacts to heat. As the…

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