UL 2108 TGD-2013
低电压照明系统的UL安全标准. 节/段落参考: 条款23.1例外情况第2条主题: 加拿大裸露导体系统次级电路的间距 (第一版: 2004年2月27日)
UL Standard for Safety Low Voltage Lighting Systems - Section / Paragraph Reference: Clause 23.1 exception No. 2 Subject: Spacings in secondary circuits of exposed bare conductor systems for Canada (Edition 1: February 27, 2004)