GB/T 20487-2018Urban fire-danger weather ratings (English PDF)

Foreword

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

This standard replaces GB/T 20487-2006 "City Fire Risk Meteorological Grade". Compared with GB/T 20487-2006, except for editorial modifications The main technical changes are as follows.

--- Removed 10 terms and their definitions, namely. temperature (see 2.1.1 in 2006), relative humidity (see 2.1.3 in 2006), Wind speed (see 2.1.5 in 2006), wind (see 2.1.7 in 2006), precipitation (see 2.1.9 in 2006), precipitation (see 2.1.10 of the 2006 edition), urban fire hazard meteorological grade (see 2.1.15 of the 2006 edition), fire risk climate assessment (see 2006)

Version 2.1.16), short-term forecast of fire hazard meteorological grade (see 2.1.17 of 2006 edition), medium and long-term forecast of fire hazard meteorological grade (see Version 2.1.18 of the 2006 edition;

--- Redefining four terms, namely urban fire insurance (see 2.1, 2006 version 2.1.13), urban fire risk weather index (see 2.2, The 2006 version of 2.1.14), the daily maximum wind speed (see 2.6, 2006 version of 2.1.6), daily precipitation (see 2.8, 2006 edition) 2.1.11);

--- Removed the "abbreviations" (see 2.2 of the 2006 edition);

--- "City Fire Risk Meteorological Factor" (see Chapter 4 of the 2006 edition) "Determining the Urban Fire Risk Meteorological Index" (see 2006 edition)

Chapter 5) is merged into the "determination of the urban fire danger weather index" (see Chapter 4);

--- Removed the "wind level and wind speed comparison table" (see Appendix A of the 2006 version).

1 Scope

This standard specifies the meteorological grade of urban fire insurance.

This standard applies to the forecast and evaluation of meteorological grades for urban fire risks.

2 Terms and definitions

The following terms and definitions apply to this document.

3 City fire danger weather level

According to the Urban Fire Risk Meteorological Index (UFWI), the city's fire risk weather level is divided from low to high, low fire risk, low fire risk, medium fire […]