GB 15599-2025 Lightning safety specification for hazardous chemical enterprises English, Anglais, Englisch, Inglés, えいご
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ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB/T 15599-2025
Replaces GB/T 15599-2009
Lightning safety specification for hazardous chemical enterprises
危险化学品企业雷电安全规范
Issue date: 2025-12-31 Implementation date: 2026-09-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
5 Lightning Warning
6 Lightning Protection
6.1 General Facilities
6.2 Production Plant Area
6.3 Tank Farm Area
6.4 Hazardous Chemical Warehouse
6.5 Loading and Unloading Area
6.6 Gas Stations
6.7 Verification Methods
7 Testing, Inspection, and Operation & Maintenance
7.1 Testing
7.2 Inspection
7.3 Operation and Maintenance
7.4 Verification Methods
Appendix A (Informative) Determination of Air-termination System Protection Range Using the Rolling Sphere Method
Appendix B (Informative) Inspection Items for Periodic and Routine Inspections
Bibliography
Lightning Safety Code for Hazardous Chemical Enterprises
1 Scope
This document specifies general requirements for avoiding or reducing lightning hazards in hazardous chemical enterprises, including lightning warning, lightning protection and detection, inspection, and operational maintenance measures.
This document applies to lightning safety protection for hazardous chemical production and operating (with storage) enterprises.
2 Normative References
The following documents contain provisions that, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 18802.11 Low-voltage surge protective devices (SPD) - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and test methods
GB/T 18802.21 Low-voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
GB/T 21431 Technical code for inspection of lightning protection devices in buildings
GB/T 38121 Lightning protection - Thunderstorm warning systems
GB 50057 Code for design of lightning protection of buildings
GB 50156 Technical standard for automobile gasoline, gas and hydrogen filling stations
GB 50650 Code for design of lightning protection of petrochemical plants (2022 edition)
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
lightning protection system; LPS
A system consisting of air-termination systems, down-conductor systems, earth-termination systems, surge protective devices and their connecting conductors, etc., used to protect buildings, sites, and installations of hazardous chemical enterprises from lightning hazards.
[SOURCE: GB 50057-2010, 2.0.5, modified]
3.2
lightning warning system
A system that monitors thunderstorm activity in a target area and can provide warnings of potential lightning occurrence in that area for a future period.
[SOURCE: GB 17681-2024, 3.3]
3.3
air-termination system
Consists of lightning rods, lightning tapes, lightning conductors, and lightning meshes, as well as metal roofs and metal components, etc., for intercepting lightning flashes.
[SOURCE: GB 50057-2010, 2.0.8]
3.4
down-conductor system
Conductor used to conduct lightning current from the air-termination system to the earth-termination system.
[SOURCE: GB 50057-2010, 2.0.9]
3.5
earth-termination system
The combination of earth electrodes and earth conductors, used to conduct lightning current and disperse it into the ground.
[SOURCE: GB 50057-2010, 2.0.10]
3.6
direct lightning flash
A lightning flash that strikes directly on a building/structure, other object, the ground, or an external lightning protection system, producing electrical, thermal, and mechanical effects.
[SOURCE: GB 50057-2010, 2.0.13]
3.7
earth electrode
Conductor embedded in soil or concrete foundation for dissipating current.
[SOURCE: GB 50057-2010, 2.0.11]
3.8
ground resistance
The real part of the impedance between a given point of a system, installation, or equipment and a reference earth at a given frequency.
[SOURCE: GB 50650-2011, 2.0.21]
3.9
impulse earthing resistance
Earth resistance determined based on the impulse current flowing into the ground through an earth electrode.
Note: The ratio of the peak voltage to earth on the earth electrode to the peak current.
[SOURCE: GB 50650-2011, 2.0.23, modified]
3.10
more thunderstorm region
A region where the average annual number of thunderstorm days exceeds 40 d but does not exceed 90 d, or where the ground flash density exceeds 2.78 times/(km²·a) but does not exceed 7.98 times/(km²·a).
[SOURCE: GB 50064-2014, 2.0.8, modified]
3.11
strong thunderstorm region
A region where the average annual number of thunderstorm days exceeds 90 d, or where the ground flash density exceeds 7.98 times/(km²·a), as well as regions with particularly severe lightning hazards based on operational experience.
[SOURCE: GB 50064-2014, 2.0.9, modified]
3.12
equipotential bonding
Electrically connecting various metal components, metal facilities, metal pipelines, metal equipment, etc., using conductors to make the potentials of the objects approximately equal.
[SOURCE: SH/T 3164-2021, 3.1.14]
3.13
surge protective device; SPD
A device used to limit transient overvoltages and divert surge currents.
Note: Contains at least one nonlinear element.
[SOURCE: GB/T 18802.11-2020, 3.1.1, modified]
