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GB/T 34939.1-2017D.C.±800kV composite post insulator—Part 1: Composite post insulator with resin impregnated glass fibers solid core (English PDF)

±800kV直流支柱复合绝缘子第1部分：环氧玻璃纤维实心芯体复合绝缘子

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 34939.1-2017 is the English-translated version of ±800kV直流支柱复合绝缘子第1部分：环氧玻璃纤维实心芯体复合绝缘子.

GB/T 34939.1-2017 is the Chinese standard "D.C.±800kV composite post insulator—Part 1: Composite post insulator with resin impregnated glass fibers solid core".

Its scope clause reads: GB/T 34939 provisions of this section ± 800kV DC epoxy fiberglass solid core column composite insulator (hereinafter referred to as Edge) definition, characteristics, test classification, test methods and judgments.

This section applies to ± 800kV DC converter station power equipment and devices with solid pillar composite insulators. Note. The insulators mainly bear bending, twisting load.

Insulators may also be subject to tensile or compressive loads in some special cases. This section does not apply to the switchgear insulator, nor is it suitable for epoxy glass fiber hollow core pillars composite insulators.

This section does not include the selection of insulators under special operating conditions.

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Document preview — GB/T 34939.1-2017

National Standard of the People's Republic of China

ICS: 29.080.10
Classification: K 48

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 logo
5 environmental conditions
6 Transport, storage and installation information
7 Features
7.1 Electrical Characteristics
7.2 Mechanical Characteristics
7.3 Size Features
7.4 Other
8 test classification
9 Design Test
9.1 General
9.2 Interface and end fitting connection zone test
9.3 Assembled core load test
9.4 Umbrella and umbrella cover material test
9.5 core material test
10 type test
10.1 type test test sample
10.2 size check
10.3 Electrical test
10.4 Mechanical test
11 sample test
11.1 General
11.2 Size check (E1 E2)
11.3 Sheath Thickness Inspection (E1 E2)
11.4 Galvanized layer test (E1 E2)
11.5 Steep wave front shock test (E1)
11.6 Measurement of surface temperature rise under power frequency voltage (E1)
11.7 Provisions for mechanical load verification (E1)
12 one by one experiment
12.1 inscription of insulators
12.2 Visual inspection
12.3 Tensile load test
12.4 core material test

1 Scope

GB/T 34939 provisions of this section ± 800kV DC epoxy fiberglass solid core column composite insulator (hereinafter referred to as

Edge) definition, characteristics, test classification, test methods and judgments.

This section applies to ± 800kV DC converter station power equipment and devices with solid pillar composite insulators.

Note. The insulators mainly bear bending, twisting load. Insulators may also be subject to tensile or compressive loads in some special cases.

This section does not apply to the switchgear insulator, nor is it suitable for epoxy glass fiber hollow core pillars composite insulators.

This section does not include the selection of insulators under special operating conditions.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 311.1 insulation coordination Part 1. Definitions, principles and rules

Rubber, vulcanized or thermoplastic - Determination of tensile stress - strain properties

GB/T 529 Determination of tear strength of vulcanized rubber or thermoplastic rubber (pant-shaped, rectangular and crescent-shaped specimen)

GB/T 1408.1 Insulating material Electrical strength test methods Part 1

GB/T 1408.2 Insulating material electrical strength test methods Part 2. Additional requirements for the application of DC voltage test

Rubber, vulcanized, Determination of insulation resistance

GB/T 2900.8 Electrotechnical terminology insulators

GB/T 6553 Electrical insulating materials for use in harsh environmental conditions - Test methods for resistance to tracking and erosion

GB/T 8287.1-2008 Indoor and outdoor post insulators for nominal voltages above 1000V Part 1. Porcelain or glass

Insulator test

GB/T 8287.2-2008 Indoor and outdoor post insulators for nominal voltages above 1000V Part 2. Dimensions and characteristic

GB/T 11344 nondestructive testing contact ultrasonic pulse echo thickness measurement method

GB/T 22079 Nominal voltage higher than 1000V Use of indoor and outdoor polymer insulators General definitions, test methods and receiving

Guidelines

GB/T 24622 insulator surface wettability measurement guidelines

GB/T 24623 high voltage insulator radio interference test

GB/T 25096-2010 AC voltage is higher than 1000V Substations substation pillar composite insulator definition, test methods and access

Admission criteria

GB/T 26218.1 Pollution conditions used in the selection of high voltage insulators and size determination Part 1. Definitions, information and general in principle […]

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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.

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