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GB/T 36490-2018Wind turbines—Technical specification of lightning protection system inspection (English PDF)

风力发电机组防雷装置检测技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 13, 2018

Implementation date

February 1, 2019

Scope

GB/T 36490-2018 is the English-translated version of 风力发电机组防雷装置检测技术规范.

GB/T 36490-2018 sets out how the lightning protection systems of wind turbines are inspected.

It specifies the inspection items; general requirements on the basis of inspection, the testing equipment, the inspection period and the procedure; and the requirements and methods for inspecting blade lightning protection, nacelle lightning protection, the grounding device, equipotential bonding and surge protective devices (SPD).

Informative annexes give the main performance of some test instruments, the collation of test data and a method for measuring the grounding resistance of a unit.

It applies to the inspection of lightning protection on onshore wind turbines of 600 kW and above, and references GB/T 33629-2017 on wind turbine lightning protection. It was issued on 13 July 2018 and has applied since 1 February 2019.

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Document preview — GB/T 36490-2018

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11

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

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 Test item
5 General requirements
5.1 Detection basis
5.2 Testing equipment requirements
5.3 Detection period
5.4 Test Procedure
6 Testing requirements and methods
6.1 Blade lightning protection device
6.2 Cabin lightning protection device
6.3 Grounding device
6.4 Equipotential device
6.5 Surge Protector (SPD)
Appendix A (informative) Main performance and parameter indicators of some testing instruments
Appendix B (informative appendix) Test data collation
Appendix C (informative appendix) Unit grounding resistance measurement method

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the testing procedures, testing items, testing requirements, testing methods, and methods for lightning protection devices for wind turbines (hereinafter referred to as units). Detection cycle and inspection data collation.

This standard is applicable to the lightning protection device detection of onshore units of 600kW and above.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 2900.53 Electrotechnical terminology wind turbine

GB/T 16895.22-2004 Electrical installations of buildings - Part 5-53. Selection and installation of electrical equipment - isolation, switching and control Equipment Section 534. Overvoltage Protection Appliances

GB/T 18802.1 Low-voltage surge protectors (SPD) Part 1. Performance requirements and test for surge protectors Test method

GB/T 18802.21 Low voltage surge protectors - Part 21. Surge protectors (SPD) performance requirements for telecommunications and signal networks experiment method

GB/T 21431-2015 Building lightning protection device testing technical specifications

GB/T 33629-2017 wind turbine lightning protection

3 Terms and definitions

The following terms and definitions as defined in GB/T 2900.53 apply to this document.

3.1 Lightning protection device

The whole device for protecting the lightning effect of a certain space, which is composed of an external lightning protection device and an internal lightning protection device.

3.2 External lightning protection device

It consists of a lightning receptor, a down conductor and a grounding device. It is mainly used to protect the lightning protection device against lightning.

The external lightning protection device in this standard refers to the lightning protection system consisting of the blade lightning receptor, the cabin lightning receptor, the down conductor, and the grounding device.

3.3 Internal lightning protection device

In addition to external lightning protection devices, all other additional facilities are internal lightning protection devices, mainly used to reduce and protect lightning currents. The electromagnetic effect generated in the space.

3.4 Surge protector

A device for limiting transient overvoltages and venting corresponding transient overcurrents that contains at least one nonlinear component.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 18802.1

Similar standards

GB/T 19962-2026|GB/T 47032-2026|GB/T 47555-2026|GB/T 47557-2026|GB/T 47558-2026|GB/T 47559-2026

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