Performance and Characteristics of a Small-Current DC Arc in a Short Air Gap

Guan, Ruiyang; Jia, Zhidong; Fan, Songhai; Deng, Yuanshi

doi:10.1109/tps.2018.2884021

Cited by 16 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sparking can be considered as another typical cause of ignition (Guan et al, 2019). The reason for this phenomenon may be due to malfunctions or incorrect installation.…”

Section: Fire Hazardmentioning

confidence: 99%

Fire safety of building integrated photovoltaic systems—State of the art

Zamrazilova

2024

J. Infras. Policy. Dev.

View full text Add to dashboard Cite

The main long-term goal of international communities is to achieve sustainable development. This issue is currently highly topical in most European Union (EU) countries due to the ongoing energy crisis. Building Integrated Photovoltaics (BIPV), which can be integrated into the building surface (roof or facade), thereby replacing conventional building materials, contributes significantly to achieving zero net energy buildings. However, fire safety is important when using BIPV as a structural system in buildings, and it is essential that the application of BIPV as building facades and roofs does not adversely affect the safety of the buildings, their occupants, or the responding firefighters. As multifunctional products, BIPV modules must meet fire safety requirements in the field of electrical engineering as well as in the construction industry. In terms of building regulations, the fire safety requirements of the BIPV must comply with national building regulations. Within this article, aspects and fire hazards associated with BIPV system installations will be defined, including proposals for installation and material requirements that can help meet fire safety.

show abstract

“…Sparking can be considered as another typical cause of ignition (Guan et al, 2019). The reason for this phenomenon may be due to malfunctions or incorrect installation.…”

Section: Fire Hazardmentioning

confidence: 99%

Fire safety of building integrated photovoltaic systems—State of the art

Zamrazilova

2024

J. Infras. Policy. Dev.

View full text Add to dashboard Cite

show abstract

“…During the yellow arc climbing process, the cathode arc root, which is on the left-side electrode, moves a little faster and higher than the anode one. One reason is that a large number of high-speed electrons, which are emitted from the cathode arc root, are forced to make a violently collision with other particles resulting in a higher temperature of cathode arc root [21]. Another reason is that the motion velocities of positive ions, which are massive gathered near the anode arc root, are generally two orders of magnitude smaller than that of electrons [22], so the Lorentz force (F = Bqv) on the anode arc root is smaller.…”

Section: Dynamic Climbing Behavior and Performancementioning

confidence: 99%

“…where B is resistance coefficient; r is the radius of arc channel; χ is the degree of Saha's ionization [21], which is essentially depend on excitation temperature.…”

Section: Excitation Temperaturementioning

confidence: 99%

Dynamic climbing behavior and self-extinction mechanism of DC arc in a gradually changed air gap

Guan,

Yang,

Yin

et al. 2024

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

DC arc behavior is normally a complicated and rapid time-dependent evolution process. To investigate the climbing behavior, dynamic properties, as well as the self-extinction mechanism, an experimental platform in collaboration with a pair of Jacob’s ladder electrodes was established. The overall evolution process including arc generation, arc combustion, and arc self-extinction was well accomplished. The dynamic climbing behavior and dynamic emission spectrum were captured. The dynamic volt-ampere characteristic, excitation temperature and electron density were all analyzed during the overall evolution process. Furthermore, the self-extinction mechanism under the function of Jacob’s ladder electrodes was explored. The experimental observations show that a two-stage climbing behavior is performed in succession. The dynamic resistance is fluctuated significantly in purple arc stage, while it is stable in yellow arc stage. The excitation temperature is positively correlated with arc current, but not strictly linear. The co-action results of two dynamic features make it more favorable for quick separation from the external ability of power supply. As a result, the arc is transitioned from self-sustaining state to non-self-sustaining state. This paper is regarded as a preliminary research aiming to provide some references for dynamic properties and self-extinction mechanism of the climbing arc in arcing horn.

show abstract

“…The length of the discharge path is related to air pressure and it is always shorter with decreasing pressure [7]. A description of arc formation and propagation is also included in the study "Performance and Characteristics of a Small-Current DC Arc in a Short Air Gap" [8]. This paper shows that the color of the DC arc changes from blue to purple and then yellow, forming a flame in the visible light range as the current increases.…”

Section: Introductionmentioning

confidence: 99%

Optical Radiation from an Electric Arc at Different Frequencies

2020

View full text Add to dashboard Cite

The article presents research on the electric arc generated by AC current at different frequencies. The measurement procedure and system are described. Optical spectra of the generated arc in the air were recorded using a spectrophotometer. Optical spectra for five frequencies were obtained. The article also presents the energy balance of the components of the registered spectrum. The visible changes in the spectra that depend on the frequency of the AC current generating the electric arc can be significant to the diagnostics of gas insulators. The research presented in the article can be used in multiple areas of technology where an electric arc is used. The influence of the frequency of the current supplying the electric arc on the electromagnetic radiation spectrum in the area of light radiation emitted by the electric arc allows for the construction of systems that can shape the desired characteristics of the electric arc.

show abstract

Performance and Characteristics of a Small-Current DC Arc in a Short Air Gap

Cited by 16 publications

References 21 publications

Fire safety of building integrated photovoltaic systems—State of the art

Fire safety of building integrated photovoltaic systems—State of the art

Dynamic climbing behavior and self-extinction mechanism of DC arc in a gradually changed air gap

Optical Radiation from an Electric Arc at Different Frequencies

Contact Info

Product

Resources

About