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Work item:
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K.143
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Subject/title:
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Guidance on safety relating to the use of surge protective devices and surge protective components in telecommunication terminal equipment
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Status:
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Approved on 2023-07-29
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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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Rev.
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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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IEC TC 108
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Supporting members:
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NTT, IEEE
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Summary:
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It is necessary to clarify the electrical requirements for SPDs/SPCs in order to realize both resistibility and safety of telecommunication systems. Recommendation ITU-T K.143 analyses the influence on human safety of lightning measures bridging across insulation in equipment by surge suppressors. Recommendation ITU-T K.143 provides guidance for design of lightning protection and requirements on surge suppressor in equipment from the human safety standpoint. Requirements for SPDs/SPCs in multiservice surge protective devices (MSPDs) external to the equipment and SPDs installed on lines in a building lie outside the scope of this Recommendation.
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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:
2022-10-31 09:57:14
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Last update:
2023-06-27 17:10:13
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