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GB/T 31239-2023Technical specification for fittings of 1000kV substation (English PDF)

1000kV变电站金具技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2023

Implementation date

July 1, 2024

Scope

GB/T 31239-2023 is the English-translated version of 1000kV变电站金具技术规范.

GB/T 31239-2023 is the Chinese standard "Technical specification for fittings of 1000kV substation".

Its scope clause reads: This document stipulates the general requirements, technical requirements, markings, packaging and accompanying documents for 1000kV substation fittings, and describes the test Methods and Judgment Criteria: This document is applicable to the frame crossovers and equipment rooms in all circuits with a system nominal voltage of 1000kV in a 1000kV substation: Design, manufacturing, testing and acceptance of supporting fittings for connecting conductors and insulator strings:. Its clauses include normative reference documents.

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Document preview — GB/T 31239-2023

National Standard of the People's Republic of China

ICS: 29.240.20
Classification: K 47
Replacing: GB/T 31239-2014

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 General requirements
5 Technical requirements
6 Test methods and judgment criteria
7 Logo, packaging and accompanying documents

1 Scope

This document stipulates the general requirements, technical requirements, markings, packaging and accompanying documents for 1000kV substation fittings, and describes the test

Methods and Judgment Criteria:

This document is applicable to the frame crossovers and equipment rooms in all circuits with a system nominal voltage of 1000kV in a 1000kV substation:

Design, manufacturing, testing and acceptance of supporting fittings for connecting conductors and insulator strings:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 93 standard spring washer

GB/T 95 Flat Washer Grade C

GB/T 2314 General technical conditions for power fittings

GB/T 2315 Nominal failure load series and connection type dimensions of power fittings

GB/T 2317:2 Test methods for power fittings Part 2: Corona and radio interference tests

GB/T 3190 Chemical composition of deformed aluminum and aluminum alloys

GB/T 3880 (all parts) Aluminum and aluminum alloy plates and strips for general industrial use

GB/T 5075 Terminology for power fittings

DL/T 284 Hot-dip galvanized bolts and nuts for transmission line towers and power fittings

DL/T 346 equipment cable clamp

DL/T 347 T-type cable clamp

DL/T 683 Model naming method for power fittings products

DL/T 696 Soft busbar fittings

DL/T 697 Hard busbar fittings

DL/T 756 Suspension Clamp

DL/T 757 Tension Clamp

DL/T 759 Connecting hardware

DL/T 760:3 Voltage equalizing ring, shielding ring and voltage equalizing shielding ring

DL/T 764 Hexagonal head bolts with pin holes in the stem for power fittings

DL/T 768:2 Manufacturing quality of power fittings Part 2: Ferrous metal forgings

DL/T 768:3 Manufacturing quality of power fittings Part 3: Stamping parts

DL/T 768:5 Manufacturing quality of electric power fittings Part 5: Aluminum parts

DL/T 768:6 Manufacturing quality of power fittings Part 6: Welded parts and thermal cutting parts

DL/T 768:7 Hot-dip galvanizing layer of steel parts for manufacturing quality of power fittings

DL/T 1098 Spacer rod technical conditions and test methods

DL/T 1343 Closed pins for power fittings

GB/T 37404 | GB/T 2694 | GB/T 31487.3 | GB/T 31235 | GB/T 31235 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3880

Editions of GB/T 31239

Edition	Title	Revision	Status
GB/T 31239-2023	Technical specification for fittings of 1 000 kV substation	current edition	Current
GB/T 31239-2014	Technical specification for fittings of 1 000 kV substation	previous edition	Obsolete

This page sells the current edition, GB/T 31239-2023. Earlier editions are listed for reference only.

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