低压熔断器的隔离功能要求

摘要

The requirement of structure and performance for low-voltage fuses with isolation function was specified in the standard GB13539.1-2008. To make the users and designers profoundly understand isolation function, this paper introduced the isolation requirements and corresponding test items of fuses for use by authorized persons, giving rated impulse withstand voltages, testing voltages cross-over each pole with isolation adaptation, minimum electrical interstice in the air and creepage distance.%GB13539.1-2008标准中对带隔离功能的低压熔断器在结构和性能上提出了明确的要求。介绍标准对专职人员使用的熔断器新增加的隔离要求及主要试验项目,给出额定冲击耐受电压、隔离适用性的跨接各极的试验电压、空气中最小电气间隙、最小爬电距离,使熔断器的使用者以及设计者更深入全面地理解其隔离功能。