標準號：UL SUBJECT 2428-2008
中文標準名稱：臨時性壁板式防進入柵欄屋調查大綱發布號:2
英文標準名稱：OUTLINE OF INVESTIGATION FOR TEMPORARY PANELBOARD INGRESS BARRIERS ISSUE NO. 2
標準類型：Q70
發布日期：2008/6/26 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q70
適用范圍：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).