Results 91 to 100 of about 6,358 (219)

Global model for flashover phenomena in vacuum: A comprehensive perspective

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   +4 more
core   +1 more source

Surface flashover in 50 years: II. Material modification, structure optimisation, and characteristics enhancement

High Voltage
Surface flashover is a gas–solid interface insulation failure that significantly jeopardises the secure operation of advanced electronic, electrical, and spacecraft applications.
Zhen Li, Ji Liu, Yoshimichi Ohki, George Chen, Shengtao Li   +4 more
doaj   +1 more source

Numerical study on flashover in aircraft cargo under varying pressure and ventilation conditions

Journal of Safety Science and Resilience
A numerical simulation study was conducted to analyze flashover in a full-scale aircraft cargo compartment, utilizing FDS (Fire Dynamics Simulator) and PyroSim (visual modeling) software. The study aims to: (i) examine how varying heat release rates (HRR)
Xuhong Jia, Shupei Tang, Quanyi Liu
doaj   +1 more source

Impulse Flashover Tests at

, 2006
the last decade. All are believed to be the result of lightning strikes to the antenna. The insulators that failed are fiberglass-belted safety core insulators that had been installed in the late 1990s. An investigation into these failures was undertaken
P. M. Hansen, Edgar Beauchamp, G. Dann, High Voltage   +3 more
core  

Development and validation of a generalised engineering methodology for thermal analysis of structural members in fire. [PDF]

, 2007
A novel methodology for generalising CFD-based approaches for thermal analysis of protected steelwork in fire has been developed, known as GeniSTELA.
Liang, Hong, Stratford, Tim; id_orcid, Welch, Stephen, Welch, Stephen; id_orcid, Kinsella, Emmett, Kinsella, Emmett V, Stratford, Tim J   +6 more
core  

Combustion products from ventilation controlled fires: toxicity assessment and modelling [PDF]

, 2012
Toxic smoke from fires is regularly identified as the leading cause of death in fire casualties. In most countries statistics suggest more than 70% of fire deaths are caused by either toxic smoke inhalation, or heat burns and toxic smoke inhalation.
Aljumaiah, Omar Abdulaziz O.
core  

Improved flashover prediction for overhead lines: Considering ground stratification and insulation volt‐time characteristics

High Voltage
This paper presents an approach to accurately forecast the yearly occurrence of flashovers caused by lightning‐induced voltage in overhead power lines in the presence of layered ground.
Amin Foroughi Nematollahi, Behrooz Vahidi, Elaheh Saddat Ahmadi Mousavi   +2 more
doaj   +1 more source

Flashover studies on a solid dielectric surface

, 1991
Solid-gas interface in a high voltage insulating system is often subjected to highly localised critical electrical stresses leading to microdischarges and subsequent surface flashover.
Suresh, HN, Siddagangappa, MC
core  

Pengaruh kelembaban terhadap Tegangan Flashover AC Isolator Piring

, 2012
Isolator piring banyak digunakan pada jaringan transmisi hantaran udara. Karena berada di ruang terbuka permukaan isolator dilapisi dengan polutan yang berasal dari udara disekitarnya sehingga tegangan flashover AC-nya dipengaruhi oleh kondisi udara di ...
Wilvian, Wilvian
core  

Pulsed flashover of solid dielectrics in vacuum and gases

, 1983
Large increases in the flashover potential of three out of four organic polymer materials were observed after the materials were exposed to the byproducts of a pulsed arc in vacuum. Solid cylinders of Lucite, Lexan, Delrin and Blue Nylon with a height of
Jackson, George L
core   +2 more sources