NDLI: A study of the emission spectra from discharges on an ice surface

Content Provider	IEEE Xplore Digital Library
Author	Nekahi, A. Farzaneh, M.
Copyright Year	2012
Description	Author affiliation: Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, Québec, Canada G7H 2B1 (Farzaneh, M.) \|\| Glasgow Caledonian University, Glasgow, Cowcaddens Road, Glasgow, UK, G4 0BA (Nekahi, A.)
Abstract	Spectra of the emitted light from an arc formed on an ice surface over a wide range (300–850 nm) were studied using a triggered spectrometer. Detailed analysis of the spectra allowed identifying different atomic lines and molecular bands from the background gases, as well as excited species from polluted ice. Time-resolved spectra were recorded at different stages of arc propagation over an ice surface to gather data on the occurring ionization processes. From comparisons of overall spectra of white and flashover arcs, it was observed that a white arc emits light mostly in the ultraviolet region, whereas a flashover arc emits light mostly in the visible region. It was pointed out that the intensity of some lines, such as copper, increases constantly between the white arc and flashover occurrences. However, the intensity of some lines, such as Hα and Hβ and $N2^{+}$ first negative, increases suddenly during flashover. The possible chemical reactions responsible for emitting observed lines and bands were discussed.
Starting Page	807
Ending Page	810
File Size	735317
Page Count	4
File Format	PDF
ISBN	9781467312530
ISSN	00849162
e-ISBN	9781467312523
e-ISBN	9781467312516
DOI	10.1109/CEIDP.2012.6378903
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ice surface Discharges (electric) Flashover Insulators Water Ionization
Content Type	Text
Resource Type	Article

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