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DL/T 1839.4-2025Data specifications for electric power reliability management information system - Part 4: Power supply system (English PDF)

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Issued by

National Energy Administration

Level / Type

National · Recommended

Issue date

September 28, 2025

Implementation date

March 28, 2026

Scope

DL/T 1839.4-2025 (Data specifications for electric power reliability management information system - Part 4: Power supply system) is available as an English-translated PDF.

DL/T 1839.4-2025 — Data specifications for electric power reliability management information system - Part 4: Power supply system

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Document preview — DL/T 1839.4-2025

National Standard of the People's Republic of China

ICS: 27.1
Classification: F 20
Replacing: DL/T 1839.4-2018

Issued by: National Energy Administration

Document data1

Document data

International classification (ICS): 27.1.

Chinese classification (CCS): F20.

Supersedes the earlier edition DL/T 1839.4-2018.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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