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Database: 189759 (19 Oct 2025)
DL/T 5440-2020 English PDF
DL/T 5440: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
DL/T 5440-2020
English
RFQ
ASK
3 days [Need to translate]
Technical specification for the design of overhead transmission line in medium and heavy icing area
Valid
DL/T 5440-2020
DL/T 5440-2009
English
RFQ
ASK
3 days [Need to translate]
Technical code for designing of overhead transmission line in medium and heavy icing area
Obsolete
DL/T 5440-2009
PDF similar to DL/T 5440-2020
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Basic data
Standard ID
DL/T 5440-2020 (DL/T5440-2020)
Description (Translated English)
Technical specification for the design of overhead transmission line in medium and heavy icing area
Sector / Industry
Electricity & Power Industry Standard (Recommended)
Classification of Chinese Standard
P62
Classification of International Standard
29.240
Word Count Estimation
140,134
Date of Issue
2020-10-23
Date of Implementation
2021-02-01
Older Standard (superseded by this standard)
DL/T 5440-2009
Quoted Standard
DL/T 5511; DL/T 5551; DL/T 5582
Regulation (derived from)
National Energy Administration Announcement No. 5 (2020)
Issuing agency(ies)
National Energy Administration
Summary
This standard is applicable to the design of 110kV and above AC and DC double ice-covered overhead transmission lines and large-span lines in the central ice area.