超清版 GB/T 44257.1-2024 电动土方机械用动力电池 第1部分：安全要求

ICS 53.100
CCS P 97
中华人民共和国国家标准
GB/T 44257.1—2024
电动土方机械用动力电池第1 部分：安全要求
Traction battery of electric earth⁃moving machinery—
Part 1：Safety requirements
2024⁃07⁃24 发布2024⁃07⁃24 实施
国家市场监督管理总局
国家标准化管理委员会发 布

目　　次
前言··························································································································Ⅲ
引言··························································································································Ⅳ
1　范围·······················································································································1
2　规范性引用文件········································································································1
3　术语和定义··············································································································1
4　符号和缩略语···········································································································2
5　安全要求·················································································································2
6　试验条件·················································································································3
7　试验准备·················································································································4
8　试验方法·················································································································5
附录A（规范性）　热扩散试验·························································································18
附录B（资料性）　电池包或电池系统的典型结构·································································23
附录C（规范性）　电池包或电池系统绝缘电阻测试方法························································25
参考文献····················································································································27
图1　一个温度循环试验示意图························································································7
图2　设备电池包或电池系统随机振动测试曲线···································································8
图3　机械冲击脉冲容差范围示意图··················································································9
图4　模拟碰撞脉冲容差范围示意图················································································10
图5　挤压板形式一示意图····························································································11
图6　挤压板形式二示意图····························································································11
图7　温湿度循环········································································································12
图8　外部火烧示意图··································································································13
图9　耐火隔板的尺寸和技术数据···················································································14
图10　温度冲击试验示意图·············································