GB/T 21431-2023Technical specification for inspection of lightning protection systems of buildings (English PDF)

1 Scope

This document stipulates the testing classification and items, testing requirements and methods, regular testing cycle, and testing flow of building 1) lightning protection devices:

process, test records, conclusions and reports:

This document is applicable to the detection of lightning protection devices in buildings:

This document does not apply to:

a) Railway system;

b) Vehicles, ships, aircraft and offshore devices;

c) Underground high-voltage pipelines; pipelines, power lines and communication lines that are not connected to the building:

2 Normative reference documents

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

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 18802:11 Low-voltage surge protector (SPD) Part 11: Performance requirements and performance requirements of surge protectors for low-voltage power supply systems experiment method

GB/T 32938-2016 Lightning protection device testing service specifications

GB 50057-2010 Design Code for Lightning Protection of Buildings

GB 50601-2010 Code for construction and quality acceptance of lightning protection projects in buildings

GB 50952-2013 Technical Specifications for Rural Residential Lightning Protection Engineering

GB 51017-2014 Technical specifications for lightning protection engineering of ancient buildings

GB 55024-2022 General specifications for building electrical and intelligence

3 Terms and definitions

The following terms and definitions apply to this document:

3:1

Lightning protection device

The entire system used to reduce personal injury and physical damage caused by lightning strikes to buildings:

Note: LPS consists of external and internal lightning protection devices:

[Source: GB/T 21714:1-2015, 3:42, with modifications]

3:2

Lightning protection device detection

The entire process of inspection, measurement and comprehensive information analysis and processing to determine whether lightning protection devices meet standard requirements:

1) The buildings in this document generally refer to buildings (structures):