常立强 肖　　　彦（中国建筑设计研究院有限公司,北京市 100037）

Discussion on Power Distribution Design of Large⁃ scale Diagnostic Equipment

CHANG Liqiang　XIAO Yan(China Architecture Design & Research Group,Beijing 100037,China)

Abstract：Combined with the actual project situation and the design requirements of the National Building Standard Design Atlas Electrical Design and Installation of Medical Buildings(19D706 - 2),this paper sorts out and analyzes the main issues，such as the power supply and distribution system,power supply internal resistance,cable selection and laying,and equipment grounding in the power distribution design for large⁃ scale diagnostic equipment.

Key words：large⁃scale diagnostic equipment;power supply and distribution system;standby power supply;power supply circuit;power supply internal resistance;cable selection;cable laying;equipment grounding

摘 要:结合工程实际及国标图集19D706 - 2《医疗建筑电气设计与安装》设计要求，对大型诊疗设备配电设计中的供配电系统、电源内阻、电缆选型及敷设、设备接地等主要问题进行整理和分析。

关键词：大型诊疗设备；供配电系统；备用电源；供电回路；电源内阻；电缆选型；电缆敷设；设备接地

中图分类号：TU852          文献标识码：A

doi：10.3969 / j. issn.1003 - 8493.2020.04.006