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GB/T 32512-2016Technical requirements for protection of photovoltaic power station against lightning (English PDF)

光伏发电站防雷技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 24, 2016

Implementation date

September 1, 2016

Scope

GB/T 32512-2016 is the English-translated version of 光伏发电站防雷技术要求.

GB/T 32512-2016 sets the technical requirements for protecting a photovoltaic power station from lightning.

It covers the protection against direct strikes on the arrays and the buildings, earthing and equipotential bonding, the shielding and routing of the DC and AC cables, and the surge protective devices fitted on the power and signal circuits, with the requirements for inspection and maintenance.

It applies to new, extended and refurbished photovoltaic power stations, and expressly does not apply to household photovoltaic systems. Designers, contractors and the inspectors who sign off a plant use it. Issued on 24 February 2016, it has applied since 1 September 2016.

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Document preview — GB/T 32512-2016

National Standard of the People's Republic of China

ICS: 27.16
Classification: F 12

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

Preface I ...
1 Scope 1 ...
2 Normative references 1 ...
3 Terms and definitions ...
4 General 2 ...
5 Technical requirements 2 ...
5.1 General provisions 2 ...
5.2 PV unit 3 ...
5.2.1 PV array 3 ...
5.2.2 Other equipment 3 ...
5.3 booster station station area 3 ...
5.4 PV power plant construction (structures) 3 ...
5.5 lightning protection devices require 3 ...
5.5.1 air terminals 3 ...
5.5.2 deflectors 4 ...
5.5.3 grounding device 4 ...
5.5.4 overvoltage protection device 4 ...
6 detects 5 ...
6.1 Acceptance test items 5 ...
6.2 Daily testing cycle 6 ...
Appendix A (Normative Appendix) lightning arrester and down conductor materials, structures and minimum section 7 ...
Appendix B (normative) grounding materials, structure and minimum size 9 ...
Annex C (normative) photovoltaic array maximum voltage 10 ...

Foreword

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

1 Scope

This standard specifies the technical requirements of the photovoltaic power station lightning.

This standard applies to new construction, expansion, renovation of photovoltaic power stations.

This standard does not apply to household photovoltaic power generation system.

2 Normative references

The following documents for the application of this document is essential. For cited documents with dates, only the dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.

GB 11032 metal oxide surge arresters without gaps

GB 18802.1 low-voltage surge protection device (SPD) - Part 1. Surge protectors low voltage distribution systems performance requirements and test methods

GB/T 18802.21 voltage surge protective devices - Part 21. Surge protection telecommunications and signaling networks (SPD) performance requirements and test methods

GB 50057 Lightning in design Grounding design specifications GB/T 50065 AC electrical installations

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Photovoltaic power generation unit

Photovoltaic power plant, with a number of PV module strings via the DC combiner box collection, the inverter and the inverter transformer isolated boost boost to conform to the power supply grid frequency and voltage requirements. Also known as the power unit module.

3.2 Photovoltaic array

The number of PV modules mechanically and electrically assembled together in a certain way and have a fixed support structure constituted by the DC power unit. Also known as the photovoltaic array.

3.3 Lightningsurgeonincomingservices

Since the effect of lightning on overhead lines, cable lines, or metal pipes, lightning, that lightning surges, they may invade the house along these lines, endangering personal safety or damage to equipment.

3.4 Surge protective device (SPD)

For limiting transient over-voltage and surge current bleeder device. It contains at least one non-linear element.

3.5 Air-termination system

Interception by the blitz of lightning rod, lightning belt, lightning lines lightning network and metal roofing, metal structures and other components.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

Referenced standards

Normative references

GB 11032 · GB 18802.1

Cited by

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