Results 41 to 50 of about 6,652 (225)

Global model for flashover phenomena in vacuum: A comprehensive perspective [PDF]

Flashover is an electrical breakdown along the dielectric-gas/vacuum/liquid interface under high electric field excitation. Surface flashover phenomena in vacuum greatly impede a variety of vacuum insulation devices and systems.
Neuber, Andreas, Sun, Guang-Yu, Yamano, Yasushi, Zhang, Guan-Jun, Song, Bai-Peng, Sun, Guangyu   +5 more
core   +1 more source

Pengaruh Kelembapan dan Suhu Terhadap Tegangan Flashover Pada Isolator Transmisi Koto Panjang - Payakumbuh

, 2023
Penelitian ini menganalisis pengaruh suhu dan kelembapan terhadap fenomena flashover pada isolator polutan lumut di Koto Panjang, Payakumbuh. Analisa perhitungan dilakukan dengan variasi suhu dan kelembapan yang berbeda berdasarkan hasil eksperimen pada ...
Hidayatullah, Bayu, Dewi, Arfita Yuana, Warmi, Yusreni, Zulkarnaini, Zulkarnaini, Amalia, Sitti   +4 more
core   +3 more sources

Development of Flame Retarded Battery Casings Using Glass Fiber‐Reinforced Epoxy Resin

Polymer Composites, EarlyView.
Development of flame retarded battery casings using glass fiber‐reinforced epoxy resin by exploiting the synergistic action of APP and TiO2 to promote the formation of a coherent ceramic‐phosphate char layer. ABSTRACT This study investigates the development of glass fiber‐reinforced epoxy resin composites with enhanced fire performance for application ...
Ákos Pomázi, Zsófia Kovács, Beáta Szolnoki, Gábor Szebényi, Andrea Toldy   +4 more
wiley   +1 more source

Fire Testing and Hazard Assessment for Flame Retardant Polymer Composites

Safety Science and Technology, EarlyView.
Flame retardant polymer composites are now being evaluated with more than pass or fail flammability tests. Heat release, smoke, toxicity, and system‐level behavior are receiving more attention, and multi‐scale methods are being used to describe fire hazard under more realistic conditions.
Shuheng Wang, Min Yue, Junjie Ren, Fei Ren, Bin Zou, Xiaodong Qian, Ye‐Tang Pan, Congling Shi, Sheng Zhang   +8 more
wiley   +1 more source

Chitosan Oligosaccharide Cross‐Linked Piperazine Pyrophosphate/Melamine Polyphosphate Modified Silicone‐Acrylic Emulsion‐Based Flame‐Retardant Coating

Safety Science and Technology, EarlyView.
Chitosan oligosaccharides, as the modifier, significantly enhances the crosslinking degree of piperazine pyrophosphate and melamine polyphosphate, enabling the composite coating to form the interpenetrating network integrating Si‐P‐C‐N during combustion.
YuPing Cao, JiaQian Liu, Rui Zhou, TianTian Wu, NaNa Sun   +4 more
wiley   +1 more source

Predicting Flashover Occurrence using Surrogate Temperature Data

, 2021
Fire fighter fatalities and injuries in the U.S. remain too high and fire fighting too hazardous. Until now, fire fighters rely only on their experience to avoid life-threatening fire events, such as flashover.
Fu, Eugene Yujun, Tam, Wai Cheong, Cleary, Thomas, Leong, Hong Va, Reneke, Paul A, Wang, Jun, Ngai, Grace, Peacock, Richard   +7 more
core   +1 more source

Engineering Phosphorus–Iron Coordination Complexes for Simultaneously Fire‐Retardant and Enhanced Epoxy Resins

Safety Science and Technology, EarlyView.
This flame‐retardant epoxy composite realizes synergistic fire suppression via gas‐phase and condensed‐phase dual mechanisms. In the gas phase, phosphorus‐containing radicals trap active H· and OH· radicals to interrupt flame combustion chain reactions. In the condensed phase, Fe species act as Lewis acid co‐catalysts to promote char formation, and the
Sicheng He, Lingfang Chen, Rui Chen, Kunxiong Wu, Yuanqing Chen, Jia Li, Junjie Wang, Xihuo You   +7 more
wiley   +1 more source

Polyaniline as a dual flame retardant and electrostatic dissipative additive in polyethylene nanocomposites

Journal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 339-355, March 2025.
Effecft of co‐doping polyaniline with phosphoric acid and phytic acid on the heat release rate of polyethylene. Abstract Polyolefins, such as polyethylene (PE), are highly flammable and electrically insulative, limiting their applicability. The study explored the flame‐retardancy and electrical conductivity of PE/polyaniline (PE/PANI) nanocomposites ...
Akeem Adisa, Joseph K. O. Asante, Vincent O. Ojijo, António B. Mapossa, Washington Mhike   +4 more
wiley   +1 more source

Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China

High Voltage, EarlyView.
ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li, Jiangling Zhi, Yu Wang, Hantao Tao, Zhaoming Li, Shanqiang Gu, Zhe Li, Zeyu Zhang, Lei Zhang, Guoying Tang   +9 more
wiley   +1 more source

Mechanism of Quasi‐Power‐Frequency Resonant Overvoltage Triggered by Multiple Lightning Strikes in High‐Voltage Alternating Current Systems Equipped With Shunt Reactor

High Voltage, EarlyView.
ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang, Tao Cui, Zhengxi Wang, Tongwei Guo, Xiaohui Wu, Hong Zeng, Jie Guo, Yanzhao Xie   +7 more
wiley   +1 more source