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UL 1838-2009 Low Voltage Landscape Lighting Systems.pdf文档页数:112文档大小:1.11MB文档格式:pdf UL UL1838 ⑧ Underwriters Laboratories Inc . Standard for SafetyLow Voltage LandscapeLighting SystemsNOVEMBER 19 .2009 - UL1838UL Standard for Safety for Low