UL 2157 CRD-2014 电动洗衣机和甩干机的UL安全标准. 节/段落参考: 补充件SA主题: 电子控制的替代路径 (第二版: 1997年6月1日)
UL Standard for Safety Electric Clothes Washing Machines and Extractors - Section / Paragraph Reference: Supplement SA Subject: Alternative Path for Electronic Controls (Edition 2: June 01, 1997)