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GB/T 16840.5-2012 English PDF

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GB/T 16840.5-2012: Technical determination methods for electrical fire evidence -- Part 5: Method of recognizing and collecting the physical evidence of electrical fire
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 16840.5-2012329 Add to Cart 3 days Technical determination methods for electrical fire evidence -- Part 5: Method of recognizing and collecting the physical evidence of electrical fire Valid

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GB 15930   GB 14102   GB/T 16840.4   GB/T 16840.7   GB/T 16840.3   

Basic data

Standard ID: GB/T 16840.5-2012 (GB/T16840.5-2012)
Description (Translated English): Technical determination methods for electrical fire evidence -- Part 5: Method of recognizing and collecting the physical evidence of electrical fire
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C82
Classification of International Standard: 13.220.20
Word Count Estimation: 14,120
Regulation (derived from): National Standards Bulletin 2012 No. 41; National Standards Commission recently released 16 national standards for fire protection
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the electrical fire traces of forensic evidence and sampling methods. This section applies to an electrical fire or fire in electrical equipment traces inquest, extraction and laboratory sample pre-treatment, This section also appl

GB/T 16840.5-2012: Technical determination methods for electrical fire evidence -- Part 5: Method of recognizing and collecting the physical evidence of electrical fire


---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.
ICS13.220.20 C82 National Standards of People's Republic of China Electrical fire technical traces of evidence identification methods Part 5. Electrical fire evidence identification and extraction methods Part 5. Methodofrecognizingandcolectingthephysicalevidenceofelectricalfire Issued on. 2013-10-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 marks sample identification 1 4 traces of sample extraction technology requirements 4 5 Sampling Method 5 6 sampling tools and materials 8 Appendix A (informative) Sample traces classification 9

Foreword

GB/T 16840 "mark evidence of electrical fire technical appraisal method" consists of the following components. --- Part 1. Macro method; --- Part 2. remanence assay; --- Part 3. Auger component analysis; --- Part 4. Metallographic analysis; --- Part 5. electrical fire evidence identification and extraction methods; --- Part 6. SEM microstructure analysis. This is Part 5 GB/T 16840 in. This section according to the rules GB/T 1.1-2009 given compilation. This section presents the People's Republic of China Ministry of Public Security. This part of the National Technical Committee of Standardization Technical Committee Fire Fire Investigation (SAC/TC113/SC11) centralized. This section is responsible for drafting unit. Shenyang Fire Research Institute Ministry of Public Security. Participated in the drafting of this section. Shanghai Public Security Fire Department, the Beijing Municipal Public Security Fire Department, Jilin Province Public Security Fire Corps. The main drafters of this section. Zhao Long, Zhang, Gao Wei, Di Man, Xie Fugen, Lian-iron, Li Jianlin, Meng Mountain, Gold River Long, Liu Shu-jun, Wang Xinming, Xia Dawei, Qi Zi Bo. This section first release. Electrical fire technical traces of evidence identification methods Part 5. Electrical fire evidence identification and extraction methods

1 Scope

This section GB/T 16840 specifies the electrical fire mark evidence and forensic sampling methods. This section applies to electrical fires or fires in electrical equipment marks an inquest, and laboratory extraction of the sample pre-treatment; this section also It applies to electrical equipment inspection techniques to identify electrical faults.

2 Terms and definitions

The following terms and definitions apply to this section. 2.1 Short circuit to ground traces earthshortcircuitmark Electrical lines or conductors shorted to ground fault occurs and the residual traces. 2.2 Arc burning marks arcscathemark Arc is a high temperature and high electrical conductivity of free gas, trace since the arc formed by the action. 2.3 Mechanical friction marks frictionalmark In the scene of the fire due to mechanical friction force formed marks. 2.4 External force traces outsideforcemark In the scene of the fire due to external mechanical force to form traces. 2.5 Insulation discharge traces insulationfaultmark Due to deterioration of insulation or over-voltage spark discharge, melting or charring leaving marks on the insulator. 2.6 Burn marks insulationinternalheatmark insulating Conductor outer insulation overcurrent heat acting on its inner surface ablation, residual traces of carbonization.

3 sample identification marks

3.1 trace metal shorts Trace metal shorts having the following characteristics. --- Short circuit traces (melting marks) and wire matrix obvious transition zone, clear boundaries; --- No signs of short circuit formed by annealing phenomenon; --- Short circuit can process the metal splashing, create a more regular small metal bead, and the bead surface wider distribution; --- Short circuit traces on a wire or other conductor can generally find the corresponding point;
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