Specification: Flame retardant characteristics: conforming to UL94 vo Insulation resistance: more than 1000MQ under normal condition Voltage grade: 0.66/0.72KV Withstand voltage strength: 3KV/50Hz/1mi more→n Working frequency: 50/60Hz Working temperature: - 30 C~+70 C Sealing material: epoxy resin Installation method: primary bus perforation, secondary lead output, base screw fixation Purpose: State Grid power project reconstruction, electric energy metering, load current monitoring. Package includes: 3pcs of AC Current Transformers