UL 217 CRD-2016
UL 安全单站和多站烟雾报警器标准 部分/段落参考:37.6.1.1(新)、37.6.2、37.6.3 主题:允许使用受监管的电池(或电池)作为主要(和唯一) )烟雾报警器接入电源
UL Standard for Safety Single and Multiple Station Smoke Alarms - Section / Paragraph Reference: 37.6.1.1 (NEW), 37.6.2, 37.6.3 Subject: To permit the use of a supervised battery (or batteries) as the primary (and sole) power source for smoke alarm access