Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HVDC Surface Flashover in Compressed Air for Various Dielectrics   This study measures the voltage at which flashover occurs in compressed air
for a variety of dielectric materials and lengths in a uniform field for DC
voltages up to 100 kV. Statistical time lag is recorded and characterized,
displaying a roughly exponential dependence on breakdown voltage. Of the
materials tested, acrylic is observed to be the most resistant to flashover.
These data are intended to facilitate the design of compressed-air insulated
high voltage systems as an alternative to SF6 insulated systems.

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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
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The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th