专家解读视频
基本信息
标准编号： TB230-2003
出版单位：
标准页数：0
标准简介
Results of a questionnaire comparing worldwide information about practices on assessment of all types of existing overhead line supports: inspection techniques, causes and types of defects and management criteria to undertake actions, especially routine maintenance, repaire, life extension, refurbishment and upgrading of supports. Includes: self supporting lattice steel structures; guyed lattice steel structures; self supporting hollow steel section structures; steel poles; concrete poles, wood poles.
