Last week, we received a sample of an induction hob from a supplier. The unit is fitted with a 3-core power card and does not have a class II symbol. The earthing core is terminated at a small copper pad on the printed circuit board with a protective ground symbol (IEC 60417 - 5019) next to the terminal. It is shocking to note that the copper pad is standalone and not connected to the unit circuitry. We made an inquiry to the supplier and replied that the product was designed by the engineer who left the company.
I have two questions regarding the appliance. Firstly, can it be rated as a class 1 appliance? Secondly, what are the main purposes of installing a 3-core power cable that has no obvious functionality? Additionally, while examining the PCB layout, I noticed punched holes for a resistor and two capacitors connected in series, with the capacitors connected in parallel first. Currently, there are no components present in those holes. I would like to know if these components are necessary for EMC compliance. Your advice is appreciated! Thanks and regards, Scott - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
