The Explosion Hazard Classification of Gases and Dusts Relative to Use of Electrical Equipment

1988 ◽  
Keyword(s):  
Electrical Equipment ◽  
Explosion Hazard ◽  
Hazard Classification

Study on Effect of Spheroidization on Hazardous Classification of ADN

2021 ◽  
Vol 881 ◽  
pp. 71-76
Author(s):  
Jian Yang ◽  
Hong Bin Li ◽  
Song Tao Ren ◽  
Peng Gang Jin ◽  
Zan Gao
Keyword(s):  
Temperature Stability ◽  
Impact Sensitivity ◽  
Classification Method ◽  
Ammonium Dinitramide ◽  
Classification Procedure ◽  
Research Results ◽  
Before And After ◽  
Hazard Classification ◽  
Friction Sensitivity

In order to determine the influence of spheroidization process of Ammonium dinitramide’s hazard grade, the hazardous division of Ammonium dinitramide before and after spheroidization is studied by using hazard classification procedure for combustible and explosive substances and articles standard (WJ20405) and hazard classification method and criterion for combusitible and explosive substances and articles standard (WJ20404). The research results show that spheroidization process can significantly improve the temperature stability of Ammonium dinitramide and significantly reduce friction sensitivity and impact sensitivity of Ammonium dinitramide. So spheroidization process can reduce the hazardous of Ammonium dinitramide and improve the safe character of Ammonium dinitramide.

Environmental hazard classification of chemicals

1992 ◽  
Vol 64-65 ◽  
pp. 535-545 ◽  
Author(s):  
Alf Lundgren
Keyword(s):  
Environmental Hazard ◽  
Hazard Classification

scholarly journals Hazard Classification of CMELS-Owned Facilities

2008 ◽  
Author(s):  
D Marden
Keyword(s):  
Hazard Classification

scholarly journals Environmental Hazard Classification of Metals and Metal Compounds

2008 ◽  
Author(s):  
Jonas Falck ◽  
Reinhard Meister
Keyword(s):  
Environmental Hazard ◽  
Metal Compounds ◽  
Hazard Classification

scholarly journals Hazard Classification of Household Chemical Products in Korea according to the Globally Harmonized System of Classification and labeling of Chemicals

2013 ◽  
Vol 25 (1) ◽  
pp. 11 ◽  
Author(s):  
Kyung-Hee Kim ◽  
Dae-Jong Song ◽  
Myeong-Hyun Yu ◽  
Yuon-Shin Park ◽  
Hye-Ran Noh ◽  
...  
Keyword(s):  
Classification And Labeling ◽  
Chemical Products ◽  
Hazard Classification

Digital Image Processing for On-line Classification of Partial Discharge Patterns in Electrical Equipment

2007 ◽  
Vol 5 (5) ◽  
pp. 287-293
Author(s):  
V.R. Garcia-Colon ◽  
R. Gonzalez Melchor ◽  
M.E. Hernandez Valois
Keyword(s):  
Image Processing ◽  
Digital Image Processing ◽  
Digital Image ◽  
Partial Discharge ◽  
Electrical Equipment ◽  
On Line ◽  
Discharge Patterns ◽  
Line Classification

Classification of Hazardous Area and Selection of Explosion - Proof Equipment in Iron Steel Company

2013 ◽  
Vol 353-356 ◽  
pp. 2277-2280
Author(s):  
Lin Zhi Fu ◽  
Yu Feng Li ◽  
Gang Li
Keyword(s):  
Release Rate ◽  
High Speed ◽  
Primary Source ◽  
Electrical Equipment ◽  
Secondary Source ◽  
Hazardous Area ◽  
Temperature Group ◽  
Speed Up ◽  
Hazardous Zone

According to the international standard, main problems lying in the process of hazardous zone classification were emphatically analyzed. The source of release was determined in light of its release frequency and duration, namely the continuous source, primary source and secondary source. Considering the effect of release rate, LEL, density, ventilation, obstacles, and meteorological conditions on the classification of the hazardous area, it could be found that the hazardous zone would expand as the release rate increased with lower explosion limit. The gas that was heavier than air covered larger hazardous areas than the lighter gas. Besides, ventilation might speed up the diffusion so as to reduce the scope the hazardous zone; obstacles prevented the diffusion so that concentration of partial gas increased and then the danger level increased; wind at high speed quickened the diffusion to decrease the range of dangerous area. Finally, explosion-proof electrical equipment was selected rationally according to the type of explosive gas and temperature group.

Electrical Faults in Power Systems

2016 ◽  
pp. 1-11
Author(s):  
Abdelkader Abdelmoumene ◽  
Hamid Bentarzi
Keyword(s):  
Fault Detection ◽  
Power Systems ◽  
Power System ◽  
System Analysis ◽  
Electrical Equipment ◽  
Correct Classification ◽  
Power System Analysis ◽  
Electrical Faults

The identification and classification of electrical faults have a great importance in power system analysis. They help in the dimensioning and the adequate choice of electrical equipment, especially, for protective and interrupting devices. This chapter describes the various faults undergone by the power system and removes some ambiguities causing confusions and difficulties for the correct classification of faults. Once the faults terminologies are well understood and properly assessed; they can be used efficiently to develop enhanced algorithms dedicated to fault detection, classification, isolation and diagnostics.

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