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Work item:
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L.400migration
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Subject/title:
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Progressive migration of Telecom/ICT site to 400VDC sources and distribution
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Status:
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[Carried to next study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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ETSI EE/EE2, some TC in IEC
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Supporting members:
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Orange, Huawei, China, Ericsson
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Summary:
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This document will give first description of existing power distribution in Telecom/ICT sites and migration to up to 400VDC issues.
Then it describes solutions for progressive migration of telecom/ICT sites to up to 400VDC distribution and direct use of up to 400VDC powering at equipment level from up to 400VDC sources. It includes
- hybrid architecture with up to 400VDC/48V conversion close to existing 48V equipment using existing 48V room distribution and ability to clear fuse fault without 48V batteries.
- solution to produce AC (inverters) as an alternative to UPS to power existing AC equipment. - modular and flexible solution to swap from 48V or AC to up to 400VDC.
- 400VDC power transfer between existing 48V centralized source to high power density equipment such as terarouter to save a lot of copper and reduce cable volume having a easier connection
It will also give details on:
- some basic requirement for safety, acceptation from operational staff thatwill work in migration environment in the Telecom/ICT sites.
- and informative best practices for safe, reliable, efficient, easy to implement and make scalable but also to reuse the migration equipment (400/48 and 400/AC)when ICT equipment in 48V and AC are replaced by up to 400VDC ones. Acceptability of working staff operating existing equipment in 48V and AC is also a major point that will be covered.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2016-10-16 21:33:26
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Last update:
2016-10-16 21:36:43
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