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ITU-T Study Group 5 - Technical Session on "Resistibility Requirements and Testing"
ITU-T SG 5 Technical Session on "Resistibility Requirements and Testing"
23 May 2006, Osaka, Japan


A Technical Session on “Resistibility Requirements and Testing” was held during the last meeting of Working Parties 1/5 and 2/5 on 23 May 2006 in Osaka, Japan.


The objective of this Technical session was to define the future work of SG 5 for the revision of the relevant recommendations dealing with resistibility taking into account both the experience of the operators and the manufacturers regarding the application of such resistibility standards approved by SG5.


The technical session was very interesting and a fruitful discussion occurred during it. The following proposals have been retained for future work of SG5:
  • Proposed changes to Recommendation K.44 and Product recommendations have been presented during this meeting
  • Need of better explanation of the relationship between the recommendations produced by SG5
  • Coordination with IEC shall continue in order to harmonize IEC standards and ITU-T Recommendations
  • Encourage the test manufacturers to join SG5.

ITU-T SG 5 Technical Session on "Resistibility Requirements and Testing"
23 May 2006, Osaka, Japan

Time Title Speaker
Opening Session 14:00-14:15 Welcome speech Mr. Hiroki Tanaka
(Vice president, NTT Energy and Environment Systems Laboratories)
Opening Remarks Mr. Ahmed Zeddam
(Chairman of the Technical Session, France Telecom)

Session 1 14:15-15:00
Introduction to Resistibility Testing
Mr. Phil Day

Session 2 15:00-15:30 Countermeasures against overvoltages in Japan and proposals to SG 5
Mr. Tsuyoshi Sato

  15:30-16:00 Coffee break

Session 3
Customers requests, technical difficulties or uncertainties, missed requirements
Mr. Ying Xiong
(Huawei Technologies)

Session 4
Resistibility vs. IEC 62305 “Lightning protection” standard and for ports connected to multiple conductors
Mr. Roberto Pomponi
(Telecom Italia)

Conclusion 17:00-18:00 Discussion and conclusion All speakers


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