EN 55011 Updated

The use of the EN 55011 is widespread.   The standard is titled Industrial, scientific and medical equipment – Radio-frequency disturbance characteristics – Limits and methods of measurement.  It is a harmonized standard for the 2014/30/EU Directive on Electromagnetic Compatibility.  It recently was updated with the addition of an Amendment 1 for the 2016 Edition.  This update replaces the previous 2016 Edition.  The changes to the document were generated by changes in the source standard.  Since it is an adoption of the CISPR 11, the new EN 55011 now includes the CISPR 11 Amendment 1.

The standard is part of the harmonized standards series for the EMC Directive, 2014/30/EU.  However, the new edition is not on the list yet.  This means that it has not been officially adopted in the Official Journal.

I note that this approval may be pending due to issues with the Annex ZZ.  The Annex references the clauses of the previous (now withdrawn) EMC Directive 2004/108/EC.  However, the CENELEC information on the document states that while the previous 2016 Edition related to both Directives, the new 2016 Edition with the 2017 Amendment is for the 2014/30/EU only.  I suspect this may have resulted in some cases of the various editions having different status levels in different nations.  I note that at the present time, the BS EN 55011 2016 Edition is considered withdrawn without replacement.  However, the new BS EN 55011 2016 + Amendment 1 2017 is current.

If you use this standard, please note that several national deviations are presented in the cover sheet material.  Some frequency ranges are different in Germany and in the United Kingdom.

You may also be interested in the changes from the previous 2016 Edition.  Updates have to do with the the fully-anechoic room (FAR) for measurements of the disturbance field strength.  (A FAR is a shielded enclosure where the internal surfaces are lined with RF energy-absorbing material.)  The new FAR requirements are for disturbance field strength in the range of 30 MHz to 1 GHz.  This FAR can be used if validated according to CISPR 16-1-4.

You do have choices when it comes to your purchase.  Use the Document Center Inc. website at www.document-center.com to see your options.  Or contact us by phone (650-591-7600) or email (info@document-center.com) for more information.  We have a variety of standards solutions available for you.  Make us your Standards Experts!


EN 55011 2016 Edition is here!

EN 55011, “Industrial, scientific and medical equipment. Radio-frequency disturbance characteristics. Limits and methods of measurement,” has just been updated.  The new 2016 Edition is available now in a variety of national editions, so you have a choice when it comes to getting your copy of this new revision.  It is derived from the CISPR 11, which was updated to Edition 6.0 about a year ago.

Of course, one of the first questions users of the EN 55011 will have is “What is the transition period?”  For this update, you have until 2/15/2019 to transition from the previous 2009 Edition with Amendment A1 (2010).  This means that both editions will be current until that date!

How can I tell where the EN 55011 2016 is different from the CISPR 11 2015?  The EN document states that “Clauses, subclauses, notes, tables, figures and annexes which are additional to those in CISPR 11:2015 are prefixed ‘Z’.”  Additionally, the EN 55011 has an informative Annex ZZ which describes the relationship of this standard with any applicable EU Directives.  And of course, there are additional Annexes that apply to European concerns:  Annex ZA on what European EN standards to use in place of other referenced documents within the publication and Annex ZB on frequencies designated on a national basis within the EU.

What’s new in the technical content of EN 55011 2016?  The changes mirror those of the CISPR 11 Edition 6.0, since this is the source document.  I’ve already reviewed those changes in a previous post from last year.  Here is the link for your review: CISPR 11 News.

How do I get a copy of the new EN 55011 2016?  Since the EN standards must be purchased in one of the many national editions available, you can choose the edition that works best for your purposes.  We have a number of options available for you at our webstore, www.document-center.com.  The official English language edition (BS EN 55011) is available from Document Center Inc. in paper format only.  Here is a link to the order page for BS EN 55011.  You can also purchase this standard in the SS EN 55011 Edition, available in both paper format and for pdf download.  Here is a direct link to the order page for SS EN 55011.

Have more questions?  Just get in touch with our staff by phone (650-591-7600) or email (info@document-center.com).  We’ve been working with standards since 1982 and have the knowledge that you need to make the best use of these compliance documents.  Make Document Center your Standards Experts!