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GA/T 2138-2024 PDF English

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GA/T 2138-2024: Forensic sciences - Code of practice for examination of electrical evidence in fire cases
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GA/T 2138-2024English199 Add to Cart 3 days [Need to translate] Forensic sciences - Code of practice for examination of electrical evidence in fire cases

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Basic data

Standard ID GA/T 2138-2024 (GA/T2138-2024)
Description (Translated English) Forensic sciences - Code of practice for examination of electrical evidence in fire cases
Sector / Industry Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard A92
Classification of International Standard 07.140
Word Count Estimation 10,170
Date of Issue 2024-04-22
Date of Implementation 2024-10-01
Issuing agency(ies) Ministry of Public Security

GA/T 2138-2024: Forensic sciences - Code of practice for examination of electrical evidence in fire cases




---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07.140 CCSA92 Public Security Industry Standard of the People's Republic of China Forensic Science. Electrical Evidence in Fire Cases Inspection technical regulations Released on 2024-04-22 2024-10-01 Implementation The Ministry of Public Security of the People's Republic of China issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was submitted by the Criminal Investigation Bureau of the Ministry of Public Security. This document is under the jurisdiction of the National Criminal Technology Standardization Technical Committee (SAC/TC179). This document was drafted by. China People's Police University, Beijing Municipal Public Security Bureau, Shanxi Provincial Public Security Department, Shanghai Municipal Public Security Bureau, Guangdong Provincial Public Security Department, Shaanxi Provincial Public Security Department. The main drafters of this document are. Zhang Jinzhuan, Zhang Gaoqin, Li Xin, Li Yang, Shen Wenyi, Pei Maoqing, Zhao Ye, Xu Jie, Li Yanchao, Zhao Yingdong, Lü Xiaobao, Wang Yixuan, Guo Zilong, and Yu Baogang. Forensic Science. Electrical Evidence in Fire Cases Inspection technical regulations

1 Scope

This document specifies the inspection and identification process of electrical evidence in fire-related cases in the field of forensic science, and defines the inspection and identification of electrical evidence in fire-related cases. The statement of determined judgment principles and appraisal opinions. This document is applicable to the inspection and identification of electrical evidence in fire-related cases in the field of forensic science, and can be used as a reference in other fields.

2 Normative references

The contents of the following documents constitute the essential terms of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 16840.1 Technical identification methods for electrical fire trace evidence Part 1.Macroscopic method GB/T 16840.2 Technical identification methods for electrical fire trace evidence Part 2.Residual magnetism detection method GB/T 16840.4 Technical identification methods for electrical fire trace evidence Part 4.Metallographic analysis method GB/T 16840.5 Technical identification methods for electrical fire evidence Part 5.Identification and extraction methods for electrical fire evidence GB/T 16840.6 Technical identification methods for electrical fire trace evidence Part 6.SEM micromorphology analysis method GB/T 16840.7 Technical identification methods for electrical fire trace evidence Part 7.EDS component analysis method

3 Terms and definitions

The terms and definitions defined in GB/T 16840.1, GB/T 16840.2, GB/T 16840.4~16840.7 and the following terms and definitions apply to this document. 3.1 Melting marks formed on metal surfaces or copper or aluminum wires under the high temperature heat of electric arc or current. Note. This includes but is not limited to short circuit melting marks, overload melting marks, local overheating melting marks caused by poor contact, and discharge marks caused by wires and other metals with different potentials. The melting marks formed by the electric shock, the melting marks formed by the short circuit to the ground, the melting marks formed by the contact discharge between charged metals with different potentials, etc. 3.2 A short circuit occurs between copper and aluminum wires, and melting marks are formed on the wires. Note. Short-circuit melting marks include primary short-circuit melting marks and secondary short-circuit melting marks. 3.3 Under normal environmental conditions, copper and aluminum wires short-circuit due to their own faults, forming melting marks on the wires. 3.4 In a fire environment, copper and aluminum wires fail and cause short circuits, forming melting marks on the wires. ...

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