GB/T 16838-2021
Environmental test and severities for fire electronic products (English Version)
- Standard No.
- GB/T 16838-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 16838-2021
- Replace
- GB/T 16838-2005
- Scope
- Normative references 2 This document specifies the environmental test methods, severity levels and functional safety requirements for fire protection electronic products. This document is applicable to all kinds of fire protection electronic products. For fire-fighting electronic products used in special places, if more severe environmental test conditions than this document are adopted, the test method can also refer to this document, except that the test parameters are otherwise specified.
- Introduction
Analysis of the core content of the standard
Version comparison GB/T16838-2005 GB/T16838-2021 Severity level Level 4 classification Level 5 classification (newly added outdoor/vehicle grade) Test items 18 items 27 items (newly added 9 items such as salt spray, sand and dust) Safety requirements Unspecified FSIL classification (hardware/software integrity assessment)
Detailed explanation of key test methods
1. Temperature test
High temperature operation test is divided into controller type (16h) and detector type (2h), with the highest severity level reaching 70±2℃. Low temperature test has added -40℃ working condition to simulate extreme cold environment.
2. Electromagnetic compatibility test
Case: In the RF radiation immunity test, an alarm controller needs to withstand 10V/m field strength in the 80MHz-1GHz frequency band and pass the orthogonal polarization test.
Implementation recommendations
- Industrial scenario products should choose Level III and above severity levels
- FSIL assessment requires simultaneous verification of hardware failure rate (PFDavg) and software architecture
- Outdoor equipment must undergo a alternating damp heat + dust combination test
Technology evolution analysis
The new version of the standard introduces the IEC 61000-4 series of electromagnetic compatibility requirements, and the test parameters are increased by 30%-50% compared to the 2005 version. The newly added power frequency magnetic field test is specially optimized for electrical fire monitoring equipment.
GB/T 16838-2021 Referenced Document
- GB/T 17626.13 Electromagnetic compatibility Testing and measurement techniques Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity test
- GB/T 17626.14 Electromagnetic compatibility Testing and measurement techniques Voltage fluctuation immunity test
- GB/T 17626.2 Electromagnetic compatibility.Testing and measurement techniques.Electrostatic discharge immunity test
- GB/T 2423.1 Environmental testing for electric and electronic products.Part 2:Test methods.Tests A:Cold
- GB/T 2423.16 Environmental testing—Part 2: Test methods—Test J and guidance: Mould growth*， 2022-07-11 Update
- GB/T 2423.37 Environmental testing for electric and electronic products Part 2: Test methods Test L: Dust and sand
- GB/T 2423.7 Environmental testing—Part 2：Test methods—Test Ec：Rough handling shocks，primarily for equipment—type specimens
- GB/T 4208 Enclosure protection level (IP code) "Amendment No. 1" GB/T 4208-2017
GB/T 16838-2021 history
- 2021 GB/T 16838-2021 Environmental test and severities for fire electronic products
- 2005 GB 16838-2005 Environmental test methods and severities for fire electronic products
- 1997 GB 16838-1997 Environmental test methods and severities for fire electronic products