Abstract: Compared with the previous version of 2010, the 2020 version of JT/T 782 has great changes in standard name, scope of application and performance requirements. This paper mainly expounds the differences between the old and new versions regarding the terms and definitions, the scope of application, test flow, tire imbalance, steering performance test, braking performance test, tire burst simulation requirements and bench test of tire burst emergency safety device, so as to provide a reference for relevant personnel of standard models of road transport vehicle inspection.

Key words: JT/T 782; Tire burst emergency safety device; Commercial vehicle; Difference analysis

摘要： 国家标准 JT/T 782 的 2020 新版与 2010 旧版相比，在标准名称、适用范围、性能要求 上都有较大的变化。论文主要从术语和定义以及标准适用范围、试验流程、轮胎不平衡量、 转向性能试验、制动性能试验、轮胎爆胎模拟要求以及爆胎应急安全装置台架试验等几个方 面阐述新旧版标准的差异，为道路运输车辆达标车型检测相关人员提供参考。

关键词: JT/T 782；爆胎应急安全装置；营运车辆；差异分析