UL SUBJECT 2428-2008 临时性壁板式防进入栅栏屋调查大纲发布号:2

标准号：UL SUBJECT 2428-2008
中文标准名称：临时性壁板式防进入栅栏屋调查大纲发布号:2
英文标准名称：OUTLINE OF INVESTIGATION FOR TEMPORARY PANELBOARD INGRESS BARRIERS ISSUE NO. 2
标准类型：Q70
发布日期：2008/6/26 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q70
适用范围：1.1 These requirements cover polymeric temporary panelboard ingress barriers intended to be fieldinstalled over the electrical access opening of indoor enclosed panelboards. These barriers are intended for temporary use only, for the period of a work shift (or consecutive work shifts), during which wiring of the internal components of the aforementioned devices is being performed by qualified users.1.2 The barriers covered by these requirements are intended for use in indoor locations wheretemperatures are not expected to exceed 50°C (122°F) and not expected to be below 0°C (32°F). Thesebarriers are not intended to be subjected to direct sunlight, rain, snow, or the like. Barriers may additionally be evaluated and marked for use in locations where temperatures exceed 50°C (122°F).