Clause 3 – How to understand the definition of “accessible part”

accessible part: part or surface that can be touched by means of test probe B of IEC 61032, and if the part or surface is metal, any conductive part connected to it.NOTE Accessible non-metallic parts with conductive coatings are considered to be accessible metal parts. There are some parts or surfaces in the appliance that…

A question about whether the second part of clause 21.2 needs to be tested.

We know that clause 29.3.2 and clause 21.2 are two separate clauses and they are not very much related, which means that the product being assessed needs to fulfill both clauses if applicable.A reinforced insulation system consisting of three separate layers of insulating material or what could be considered a double insulation system, Each layer…

Clause 3 – How to understand the definition of “non-detachable part”

non-detachable-part: part that can only be removed or opened with the aid of a tool or a part that fulfils the test of 22.11. The definition of this concept is mainly for the judgment of clause 8 and clause 20, and the judgment of other clauses may also be used. On the appliance, whether any…

Clause 3 – How to understand the definition of “combined appliance”

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…

Isigaba sesi-3 – Iqondwa kanjani incazelo “yebanga le-creepage”

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…

Isigaba sesi-3 – Iqondwa kanjani incazelo “yesisetshenziswa esisetshenziswa esisezingeni lesi-III”

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….

Isigaba sesi-3 – Iqondwa kanjani incazelo “yensiza yeklasi II”

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…

Isigaba sesi-3 – Iqondwa kanjani incazelo “yensiza yekilasi I”

umshini kagesi wesigaba I: umshini lapho ukuvikeleka kokushaqeka kukagesi kungancikile ekufakeni izinto eziyisisekelo kuphela kodwa okuhlanganisa nesexwayiso sokuphepha esengeziwe, ngokuthi izingxenye ezifinyelelekayo eziqhutshwayo zixhunywe ku-conductor yomhlaba ovikelayo kuzintambo ezingaguquki zokufakwa ngaleyo ndlela. ukuthi izingxenye ezifinyelelekayo azikwazi ukuba bukhoma uma kwenzeka ukwehluleka kokufakwa okuyisisekeloQAPHELA Lokhu kunikezwa kuhlanganisa i-conductor yomhlaba evikelayo entanjeni yokuhlinzeka. Isibonelo: Ngokuyisisekelo, izinto ezisetshenziswayo…

8.1.5 – Ivikelwe okungenani ngokufakwa okuyisisekelo ngaphambi kokufakwa noma ukuhlanganisa

Isigaba somthetho 8.1.1 sisho ukuthi uphenyo kufanele lusetshenziswe lapho into esetshenziswayo “isetshenziswa okuvamile”, kuyilapho isigatshana 8.1.5 sihlolwa ngaphambi kokufakwa. Imikhiqizo efana nalena, elethwa ngezingxenye ezimbalwa, ngokuvamile idinga ukufakwa endaweni. “Phila kanye ne-nbsp;izingxenye kanye ne-nbsp;ye kanye ne-nbsp;eyakhelwe ngaphakathi kanye ne-nbsp;imishini, kanye ne-nbsp;i-fixed ne-nbsp;imishini kanye ne-nbsp; kanye ne-nbsp;imishini kanye ne-nbsp;ilethiwe kanye ne-nbsp;ngaphakathi kanye ne-nbsp;hlukanisa futhi nbsp;amayunithi, kanye…