Title Restoration of the insulation of ice- covered post insulators
Author Lanoie, R.
Author Affil Lanoie, R., Institut de Recherche d'Hydro-Québec, Canada. 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.39- 42, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165-232X
Publication Date Jan. 2011
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309984
Index Terms construction materials; ice; ice storms; insulation; melting; power lines; structures; deicers; infrastructure; insulation materials
Abstract This article describes a technique used to deice and restore the external insulation of post insulators covered with ice in the process of melting. Tests were done in the large environmental chamber at Universite du Quebec a Chicoutimi's research pavillion on atmospheric icing. Post insulators were covered with ice and subjected to conditions close to the electrical flashover. The surface of the post insulators was cleaned with a powerful steam jet. This considerably reduced the leakage currents and, as a result, the insulation of the post insulators could be restored. The improvement of the insulation was estimated based on a simple model where the arc is propagated on a polluted surface.
URL http://hdl.handle.net/10.1016/j.coldregions.2010.03.008
Publication Type journal article
Record ID 65006868