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CISPR/TC77 Joint Task Force Activity Update ACEC meeting in Paris, June 2006 Prepared by Donald N. Heirman Chairman CISPR Subcommittee A.

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Presentation on theme: "CISPR/TC77 Joint Task Force Activity Update ACEC meeting in Paris, June 2006 Prepared by Donald N. Heirman Chairman CISPR Subcommittee A."— Presentation transcript:

1 CISPR/TC77 Joint Task Force Activity Update ACEC meeting in Paris, June 2006 Prepared by Donald N. Heirman Chairman CISPR Subcommittee A

2 TC77CISPR ACEC 2 Topics Covered  Joint task groups with TC 77 (SC 77B)  Publication of JTF results  Summary

3 TC77CISPR ACEC 3 CISPR / TC 77 Projects 1  Joint task force (JTF) experts from both committees participate (CISPR SC A and SC 77B)  New emission and immunity measurement standards  Used for product compliance  Extending test capability for new product technology

4 TC77CISPR ACEC 4 CISPR / TC 77 Projects 2  TEM Waveguides (Published as 61000-4-20)  Used for emission and immunity testing  Presently applicable for “small EUTs” An EUT is defined as a small EUT if the largest dimension of the case is smaller than one wavelength at the highest test frequency (for example, at 1 GHz λ = 300 mm), and if no cables are connected to the EUT. All other EUTs are defined as large EUTs.

5 TC77CISPR ACEC 5 CISPR / TC 77 Projects 3 Example of TEM test setup

6 TC77CISPR ACEC 6 CISPR / TC 77 Projects 4  TEM Waveguides (Published as 61000- 4-20)  Recent meetings: University of York, February 2006 IEEE EMC Symposium, Portland, Aug. 2006 Siemens, Erlangen, Feb. 2007 IEEE EMC Symposium, Honolulu, 8 Jul. 2007 Next: Nottingham, 29/30 Nov. 2007  Conveners: Andy Marvin (U of York) and Angela Nothofer (U of Nottingham)

7 TC77CISPR ACEC 7 CISPR / TC 77 Projects 5  TEM Waveguides (Published as 61000- 4-20)  Technical Matters: Editorial changes undertaken including minor technical issues resolved, Edition 1.1 recently published Work proceeding according to revised timetable

8 TC77CISPR ACEC 8 CISPR / TC 77 Projects 6  Reverberation Chamber testing (Published as 61000-4-21)  Used for emission and immunity testing  Accommodates large products  Measures emission power (which can be converted into field strength limits via an algorithm)  CIS/A/497/DC (2004) sent to NCs asking inputs on future maintenance activities including addressing commercial as well as military application Results in CIS/A/540/INF varied  Questionnaire issued on need for maintenance (77B/505/Q and CIS/A/656/Q—both in 2006)

9 TC77CISPR ACEC 9 CISPR / TC 77 Projects 7 Example of reverberation test setup

10 TC77CISPR ACEC 10 CISPR / JTF Projects 8  Testing in fully absorber-lined room (FAR)  First step applies to radiated emission measurements  Published in Pub 16-2-3, Clause 7.2.9.2  New work item proposal (CIS/A/505/NP) presented to address emissions and immunity for FAR in a single document with aim to reduce and simplify procedures currently in multiple documents (CIS/A/537/RVN)  To be published as 61000-4-22  Draft CD to be finalized at 7-10 June 2006 JTF meeting in Erlangen, Germany with distribution to National Committees for comment in Sept.

11 TC77CISPR ACEC 11 CISPR / JTF Projects 9 Example of FAR test setup

12 TC77CISPR ACEC 12 CISPR / JTF Projects 10  Uniform Test Arrangements  Radiated emissions (30 MHz to 1 GHz) and immunity (80 MHz to 1 GHz) test method with common test set-up in semi-anechoic chamber Work progressing on scope and planning CIS/A/590/CDV circulated 6 May ’05 with comments and vote in CIS/A/630/RVC CDV approved (89% P-members in favour) CIS/A/657/FDIS circulated 31 st March ’06 with closing date for vote on 2 nd June ‘06

13 TC77CISPR ACEC 13 CISPR / JTF Projects 11 Example of uniform test arrangements

14 TC77CISPR ACEC 14 Other JTF related Information 12  CIS/A/486/INF identifies JTF conveners and co-conveners as well as membership in present four task groups  Membership in CIS/A/561/INF  CIS/A/481/INF provides JTF guidelines to be used by CISPR/A and SC77B and conveners of JTFs for publishing documents within the established timelines of the IEC  Additions planned based on practical work needs

15 TC77CISPR ACEC 15 Summary  Providing new basic standards to CISPR (and other) product committees to select in determining conformity to limits  Providing additional test methods to use by TC77 in immunity work  Projects beyond first two publications well underway  CISPR/TC77 management continuously monitoring activity to ensure that progress continues and difficulties resolved


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