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节能工作是支持国民经济迅速发展的重要一环,我国单位建筑面积能耗是发达国家的2～3倍,节能工作潜力很大。对于建筑电气而言,合理的选用设备,合理确定供电电压等级以及采用新材料、新技术等手段都能够较好的实现建筑电气的节能降耗。本文从用电负荷、变压器选择、线路损耗、功率因数、照明用电以及建筑电气设备的节能等方面介绍了建筑电气节能的主要措施。
Energy-saving work is an important part of supporting the rapid development of the national economy. Energy consumption per unit of building area in China is 2 to 3 times that of developed countries, and energy-saving work has great potential. For the building electrical industry, reasonable selection of equipment, reasonable determination of the power supply voltage level, and adoption of new materials, new technologies, etc., can all contribute to the energy saving and consumption reduction of building electrical systems. This article introduced the main measures for building electrical energy-saving from the aspects of power load, transformer selection, line loss, power factor, lighting power, and energy saving of building electrical equipment.