COMPACT TOWERS WITH POST-LINE INSULATORS DESIGNED FOR SNOWY AREAS
One of the options for narrowing the overhead-line corridor is to use armless insulation constructions, like post-line insulators or brace-insulator assemblies. For the first time in Slovenia, compact towers with post-line insulators at the 110-kV level have been studied. The presented overhead-line route is in an area where snow events can occur during the winter. A post-line insulator with its base rigidly attached to the support structure should withstand unbalanced loads and the bending stress inside the insulators fiberglass core. To determine the right properties for the mechanical insulator, the line design should take into account the local standards, the designers experiences and, if it is available, the local metrological data from the line route. The variation of the major parameters -like snow quantity, unequal snow accretion, conductor size, insulator lengths and freedom of movement in the conductors attaching point on the compact-tower design and the post-line insulator -will be presented. From our experiences the demands relating to the EN 50341 standard are discussed.
Borut Zemljaric
Design office Elektro Gorenjska d,d 4000 Kranj, Slovenia
国际会议
The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)
重庆
英文
123
2011-05-08（万方平台首次上网日期，不代表论文的发表时间）