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ITU-T SG 5 C
ITU-T SG 5
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Environment, climate change and circular economy
Study Period 2017
Results:
22
total items.
Contributions
[ Source: Nippon Telegraph and Telephone Corporation (NTT) ] [ AI/Question: Q4/5 ]
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Source
AI/Question
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Q2/5
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[ 828 ]
Proposed draft new Recommendation K.power_emc "Electromagnetic compatibility requirements for power equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2021-11-15
[ 826 ]
(Rev.1)
Draft revision of Recommendation ITU-T K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2021-11-15
[ 825 ]
Proposed discussion about emission limit from 9 kHz to 150 kHz
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2021-11-15
[ 762 ]
(Rev.1)
Proposed draft new Recommendation K.power_emc "Electromagnetic compatibility requirements for power equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2021-04-26
[ 761 ]
(Rev.1)
Proposed draft revision of K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2021-04-26
[ 705 ]
An issue to be considered when applying CDN for surge immunity test in IEC 61000-4-5
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
,
Q2/5
2020-10-05
[ 704 ]
(Rev.1)
K.power_emc; proposed draft Recommendation "Electromagnetic compatibility requirements for power equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2020-10-05
[ 703 ]
(Rev.1)
Revision of K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2020-10-05
[ 634 ]
An issue to be considered when applying CDN for surge immunity test in IEC 61000-4-5
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
,
Q2/5
2020-04-27
[ 633 ]
(Rev.1)
K.power_emc; proposed draft Recommendation "Electromagnetic compatibility requirements for power equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2020-04-27
[ 632 ]
K.123 proposed revision of Recommendation "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2020-04-27
[ 569 ]
Proposed reorganization of scopes for Recommendations K.123 and K.137 to solve the overlap of requirement for power equipment
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2019-09-03
[ 442 ]
Notes for applying IEC 61000-4-5 Ed.3
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2019-04-26
[ 430 ]
(Rev.1)
Proposal for the 3rd revised draft of K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT) (Japan)
Q4/5
2019-04-24
[ 350 ]
Rationale for the specification of conductive disturbance limits below 150 kHz for revised draft of K.123
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2018-08-28
[ 349 ]
Proposal for the 2nd revised draft of K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2018-08-28
[ 249 ]
Proposal for the revision of K.123 "Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2018-05-07
[ 127 ]
Problems on application of surge immunity test method in IEC 61000-4-5 Ed.3.to telecommunication equipment
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
,
Q2/5
2017-10-30
[ 121 ]
The 3rd draft Recommendation K.light "EMC requirements of electromagnetic disturbances from lighting equipment located in telecommunication facilities"
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2017-10-30
[ 21 ]
The second draft of K.light "EMC requirements of disturbances from lighting equipment located in the telecommunication equipment room"
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2017-04-27
[ 20 ]
Measurement method of transient currents at mains ports in K.light
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2017-04-27
[ 14 ]
Proposed 4th draft new Recommendation K.prox "Immunity requirements for telecommunication equipment in close proximity use of wireless devices"
Nippon Telegraph and Telephone Corporation (NTT)
Q4/5
2017-04-20
Results:
22
total items.
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