In reviewing ICES-003, Issue 5-2012, I noticed the Class B radiated limits are sometimes higher than Class A limits by as much as 4.5dB! http://www.ic.gc.ca/eic/site/smt-gst.nsf/vwapj/ICES-003-issue5-2012.pdf/$FILE/ICES-003-issue5-2012.pdf
Since the product classes have traditional definitions, I assume this is a typo. Does anyone know if this has been acknowledged by Industry Canada? Pat On Fri, Oct 25, 2013 at 12:03 PM, Dennis Ward <[email protected]> wrote: > Actually the line conducted emissions limits in CFR47 section 15.107 has > not been 450kHz to 30MHz for quite some time now (changed in 2005). It has > been the same as CISPR (i.e. starting at 150kHz to 30MHz) since then. *** > * > > ** ** > > Radiated emissions limits however, are different between CSIPR and CFR 47 > 15.109. The interesting thing about this however, is that 15.109(g)(4) > states “(4) If the radiated emissions are measured to demonstrate > compliance with the alternative standards in this paragraph, compliance > must also be demonstrated with the conducted limits shown in §15.107(e).” > I believe 15.107(e) was a commensurate statement in the line conducted > section as the above statement is in the Radiated section. Problem is, > since they went to the CISPR limits in 15.107 around 2005, and there is no > longer a 15.107(e) in the rules, so the note is meaningless.**** > > ** ** > > Thanks **** > > *Dennis Ward** > Senior Reviewing Engineer*** > > *PCTEST ***** > > ** ** > > *From:* Sundstrom, Michael [mailto:[email protected]] > *Sent:* Friday, October 25, 2013 10:34 AM > > *To:* [email protected] > *Subject:* Re: [PSES] USA & Canada rf emission test standards**** > > ** ** > > Ian,**** > > The Conducted RF Limits Frequency Band are lower than your stated starting > point.**** > > Conducted Frequency limits for FCC are 450kHz to 30MHz.**** > > Conducted Frequency limits for CISPR are 150kHz to 30MHz.**** > > ** ** > > Now the FCC has said that it will accept the CISPR data, (47CFR15.33 I > think) and Canada has said it will accept the CISPR testing data also. (I > don’t remember what IC requirement states this?) I also remember that > Canada said it will except FCC data (I think?)?**** > > ** ** > > I recall that if you tested to CE requirements you were basically covered > in Canada IF you were testing at a FCC site also accepted in Canada.**** > > ** ** > > Hope this helps,**** > > ** ** > > Michael Sundstrom**** > > OHD TREQ Dallas**** > > Electronic Lab Analyst EMC Lead**** > > (214) 579 6312 office**** > > (940) 390 3644 cell**** > > マイク**** > > KB5UKT**** > > ** ** > > *From:* Grasso, Charles > [mailto:[email protected]<[email protected]>] > > *Sent:* Friday, October 25, 2013 10:38 AM > *To:* [email protected] > *Subject:* Re: [PSES] USA & Canada rf emission test standards**** > > ** ** > > Hello Ian – In combining the test standards do you mean methodology or > limits or both? > ICES 003 has different limits to the FCC published limits - so be aware of > that. For the test methods > refer to the other emails in the thread. **** > > ** ** > > *From:* Ian McBurney > [mailto:[email protected]<[email protected]>] > > *Sent:* Tuesday, September 17, 2013 9:35 AM > *To:* [email protected] > *Subject:* [PSES] USA & Canada rf emission test standards**** > > ** ** > > Dear Colleagues;**** > > **** > > I am trying to combine FCC 47 CFR part 15 and Canadian ICES-003:2012 > radiated rf emission testing for a digital device that is an unintentional > radiator.**** > > However; looking into the test standards for each country I am getting > perplexed.**** > > **** > > It appears that for 47 CFR part 15 sub part B, the test standard for > compliance is ANSI UL C63.4 2003 whereas for Canada it is the latest > edition that is acceptable which I believe is the ANSI UL C63.4 2009.**** > > Similarly; if I was to apply the CISPR 22 method then CFR47 part 15 > recognises the third edition of CISPR 22 and Canada applies the 6 edition > 2008.**** > > **** > > Is there a common set of standards that can be applied for radiated & > conducted rf emission measurements that is acceptable in both the USA & > Canada?**** > > **** > > I am carrying out measurements from 30MHz to 2GHz to class B limits.**** > > **** > > Many thanks in advance.**** > > **** > > Ian McBurney**** > > Design & Compliance Engineer.**** > > **** > > Allen & Heath Ltd.**** > > Kernick Industrial Estate,**** > > Penryn, Cornwall. TR10 9LU. UK**** > > T: 01326 372070**** > > E: [email protected]**** > > **** > > **** > > - > ----------------------------------------------------------------**** > > 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 < > [email protected]>**** > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html**** > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc.**** > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html **** > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> **** > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> **** > > - > ----------------------------------------------------------------**** > > 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 < > [email protected]>**** > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html**** > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc.**** > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html **** > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> **** > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> **** > > - > ----------------------------------------------------------------**** > > 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 < > [email protected]>**** > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html**** > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc.**** > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html **** > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> **** > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> **** > - > ---------------------------------------------------------------- > > 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 < > [email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > - ---------------------------------------------------------------- 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
