Title A comparison of two practical approaches to preventing inter-span phase contacts during snow shedding on the same 110-kV overhead line
Author Zemljaric, B.
Author Affil Zemljaric, B., IBE Consulting Engineers, Ljubljana, Slovenia. Other: U. S. Army Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory
Source Anti-icing and de-icing techniques, edited by M. Farzaneh and C.C. Ryerson. Cold Regions Science and Technology, 65(1), p.52- 59, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165-232X
Publication Date Jan. 2011
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309982
Index Terms ice; power lines; countermeasures; snow; structures; Slovenia; Europe; infrastructure; phase spacers; preventive measures; snow shedding; Southern Europe
Abstract Field experiences in a few particular areas of Slovenia have shown that during periods of snowfall some overhead lines are randomly exposed to short-circuit events between conductors that lie in a vertical disposition. This paper presents two practical approaches to reducing the probability of these inter-span contacts that result from the snow shedding. Both approaches refer to the same overhead line, so that a direct comparison can be made. The first overhead-line circuit is equipped with phase spacers; the second one is equipped with V strings. Up to now, both approaches have served well in practice. In this paper a transmission line is presented, and the differences between the two approaches with regard to the design parameters are given. The advantages and disadvantages of both approaches are summarized.
URL http://hdl.handle.net/10.1016/j.coldregions.2010.04.003
Publication Type journal article
Record ID 65006870