GB/T 38121-2023Protection against lightning - Thunderstorm warning systems (English PDF)

1 Scope

This document describes the characteristics of a thunderstorm warning system so that measures can be taken to prevent lightning hazards:

Both thunderstorm detectors and/or detection networks composed of them (such as lightning location systems) can be used as thunderstorm warning systems:

This document specifies the basic requirements for detectors and detection networks used to accurately collect lightning-related parameters and provide real-time information on lightning activities:

This document describes the application of the data collected by the above-mentioned detectors and detection networks in the form of early warning and historical data:

This document includes:

- A general description of the technologies available for thunderstorm warning systems;

- Guidance on alert methods;

- Informative examples of possible preventive measures:

This document does not apply to the following situations:

a) Lightning protective devices, such devices as specified in IEC 62305 (all parts) [1];

b) Rain, hail, wind and other related phenomena accompanying thunderstorms;

c) Thunderstorm detection technology based on satellite and radar;

d) Portable equipment (devices in which the sensor position is not fixed):

NOTE: Due to calibration and testing reasons, portable devices may not be sufficient to provide an effective early warning:

2 Normative references

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

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

IEC 60068-2-75:2014 Environmental testing Part 2-75: Test method Test Eh: Hammer test (Environmental

Note: GB/T 2423:55-2006 Environmental testing for electrical and electronic products Part 2: Test method Test Eh: Hammer test (IEC 60068-2-75:

1997, IDT)

Note: GB/T 4208-2017 enclosure protection level (IP code) (IEC 60529:2013, IDT)

IEC 61000-6-4 Electromagnetic compatibility (EMC) Part 6-4: Generic standards for emissions in industrial environments [Electromagnetic

Note: GB 17799:4-2022 General Standard for Electromagnetic Compatibility Part 4: Emissions in Industrial Environments (IEC 61000-6-4:2018, IDT)

IEC 61180 High-voltage test technology definition, test and procedure requirements, test equipment for low-voltage equipment [High-voltagetesttech-

Note: GB/T 17627-2019 High-voltage test technology definition, test and procedure requirements, test equipment for low-voltage electrical equipment (IEC 61180:2016, MOD)

Note: GB/T 33588:1-2020 Lightning Protection System Components (LPSC) Part 1: Requirements for Connectors (IEC 62561-1:2017, IDT)

IEC 62561-4 Lightning protection system components (LPSC) Part 4: Fastener requirements for conductors [Lightningprotection

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