为防止断索事故所进行的钢索试验日本长野营林局自１９６７年以来，受林业厅及试验场的委托，从事各种钢索的性能试验，并将集材机械的安全技术作为专项课题进行研究。本文是长野营林局发表的研究成果，介绍了有关钢索的试验数据，以及隐患的特征，可作为预防断索事故的参... Cable Test to Prevent Disconnection Accidents Japan Nagano Oyashi Forest Bureau has been engaged in the performance tests of various cables since 1967, commissioned by the Forestry Department and the test site. As a special project, the safety technology of the skidding machinery research. This article is the result of a study published by Nagano Camp Forest Bureau, introducing the experimental data on steel cables and the characteristics of hidden dangers, which can be used as a reference to prevent cable accidents.