【摘要】 简要介绍《美国国家电气规范》有关医院电气设计的部分内容,比对中、美两国在医院供配电系统设计方面的差异,并由此引发了一些思考:①美国NEC将电气负荷分为四类,并具体规定了接入这四类负荷配电回路的设备;②NEC强调应由独立的发电机组提供备用电源;③NEC规定重要负荷均采用双电源自切,但自切开关均设在首端;④NEC规定不同负荷种类的线路分开敷设,并由各自色标标明。更多还原

【Abstract】 The brief introduction of the part concerning hospital electrical design of National Electrical Code. After having compared the difference of the hospital electrical design of China and America,and mainly on the part of power supply,inspired us think it deeper:NEC classified the load into 4 kinds,and appoints the exact equipment used in the circuit;NEC emphasizes that alternate power source must be an independent generat-or;critical loads all supplied by two power sources,which transferred by an auto-transfer switch that being set on the head of the circuit;different load circuits are being laid separated and marked as selfcolor on hospital design in America.更多还原