IEC 62368-1受限制短路试验的豁免设计

Design to Exempt Limited Short-circuit Tests in IEC 62368-1

IEC 62368-1基于IEC 60950-1基础,对保护连接导体新增附录R受限制短路试验,旨在验证过流保护装置有效性。受限制短路试验具有电流能量大、操作复杂等特点难以实施。为降低测试成本,文中提出3种设计方案,既能够保障设备防电击绝缘性能,又合理地豁免考核。

On the basis of IEC 60950-1,IEC 62368-1 adds Appendix R limited short-circuit test to the protective bonding conductor to verify the effectiveness of the overcurrent protective device.The limited short-circuit test has the characteristics of large current energy and complicated operation,which is difficult to implement.In order to reduce the cost of testing,the author proposes three design schemes,which can not only guarantee the insulation performance of the equipment against electric shock,but also reasonably exempt the assessment.