BS EN 50274-2002 低压开关装置和控制装置组件.防电击穿.防止无意地直接与危害生命的部件接触

标准号：BS EN 50274-2002
中文标准名称：低压开关装置和控制装置组件.防电击穿.防止无意地直接与危害生命的部件接触
英文标准名称：Low-voltage switchgear and controlgear assemblies - Protection against electric shock - Protection against unintentional direct contact with hazardous live parts
标准类型：K31
发布日期：2002/7/23 12:00:00
实施日期：2002/7/23 12:00:00
中国标准分类号：K31
国际标准分类号：29.130.20
引用标准：EN 60529;EN 61032;EN 61140;IEC 60050-195;IEC 60050-826
适用范围：This standard applies to low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding AC 1 000 V or DC 1 500 V. It sets out the requirements for the provision of additional features to provide protection against electric shock from direct contact with hazardous live parts only for skilled and instructed persons when they are required to manually actuate devices within the assembly and where a level of protection for the operating face of not less than IPXXB cannot be achieved. These devices are those only accessible via a door or cover requiring a key or tool to open it or in an assembly located in an area set apart and where the access to that area is restricted solely to skilled or instructed persons. This standard does not apply to - manually operated devices and their locations where access is available to ordinary persons, - low-voltage switchgear and controlgear assemblies where the operating voltage does not exceed AC 50 V or DC 120 V and there is protective separation, in accordance with EN 61140, between these circuits and any other circuits, NOTE Voltages generated by means of auto-transformers, potentiometers, semiconductor components etc. do NOT meet these requirements. - low-voltage switchgear and controlgear assemblies where protection of persons is provided by limitation of steady-state touch current or charge in accordance with EN 61140.