强电系统的技术发展为建筑的安全用电创造了条件Word文档格式.docx

1、Building electrical design of economy is the initial investment and operation of electrical equipment and cost to achieve economic and reasonable. Now two parts of building electrical design is divided into heavy current and weak current, this paper respectively from the two parts to discuss how to

2、strengthen the modern building was electric. 1现代建筑的强电设计1. High-voltage electrical design of modern architecture 强电系统的技术发展为建筑的安全用电创造了条件。电力自动监控系统采用计算机技术、数据处理技术、控制技术、传感技术、通信网络技术、电力电子技术等,可基本取代传统的二次回路,具有接线简单、性能可靠、易于维护等优点。High voltage technology development system to create conditions for building the saf

3、ety of the electricity. Power automatic monitoring and control system using computer technology, data processing technology, control technology, sensor technology, communication network technology, power electronic technology, etc., can replace the traditional basic secondary loop, with simple wirin

4、g, reliable performance, easy maintenance, etc. 一般来说，建筑中变配电系统主要包括:高低压系统、变压器、备用电源系统等；电力系统主要包括电力系统配电及控制；照明系统则包括室内外各类照明；防雷接地系统包括防雷电波侵入、防雷电感应、接地、等电位联结和局部等电位联结、辅助等电位联结等等。在这短短 20 多年中,这些系统的技术和产品发生了巨大的变化,许多设计的理念也随之发生了巨大的变化。例如高压系统中的高压开关柜,其最早采用的断路器为油断路器,后逐渐发展到少油断路器,不仅体积大,而且不防火。所配置的高压开关柜体积大,还必须独立设置在自己的隔间内,占用了很

5、大的建筑面积。现在所采用的真空断路器和 SF6 断路器,不仅体积小,而且短路容量也高,柜体尺寸也比原来的柜子小了许多,由于断路器无任何油,防火性能大大提高,并且可以与其它低压设备共置一个房间内,既节省了空间,又方便了管理。低压断路器已从过去的体积大、短路容量小发展到大电流、高分断能力、体积小、性能稳定,使系统更加安全可靠,并给设计带来了方便。近些年低压断路器又朝着智能化方向发展,可将断路器的多种参数通过工业控制总线,直接将信号传送给计算机。干式变压器的出现,为建筑电气设计也带来了极大的方便,由于不存在由于变压器油泄漏而发生火灾的可能,使之可以方便地设置在建筑物的内部,更直接深入到负荷中心。另外

6、也消除了建筑内对油变压器容量的限制,建筑中干式变压器可以采用更大容量。应急电源所采用的发电机组,从其性能和体积上看,都比过去有很大进步。除在工程中采用柴油发电机组外,作为应急照明,可采用 EPS,对于允许中断供电在毫秒级的设备,则可采用 UPS。电力设备的控制,从过去的单一继电控制走向了自动控制,除了各类元器件性能更好、体积小,使控制箱体体积减小外,更主要是由于采用了数字技术控制,使受控设备处于最佳控制状态,进一步达到了节能的效果。Generally speaking, the construction of variable power distribution system mainly

7、includes: high and low voltage system, transformer, standby power system, etc.; Power system mainly include power system, power distribution and control; Include indoor and outdoor lighting system of all kinds of lighting; Lightning protection grounding system including intrusion, lightning protecti

8、on electricity, lightning protection waves grounding, equipotential connection and local equipotential connection, auxiliary equipotential connection, etc. In the short 20 years, these systems technologies and products, great changes have taken place in many design concept has been great changes hav

9、e taken place. High voltage switch cabinet in high pressure system, for example, the earliest use of circuit breaker as an oil circuit breaker, after gradually to less oil circuit breaker, not only the volume is big, and not fire. Configuration of high voltage switch cabinet volume is big, must also

10、 be independent setting in your cubicle, takes up a lot of construction area. Vacuum circuit breaker and SF6 circuit breaker used by now, not only small in size, and short-circuit capacity is high, the cabinet put oneself in anothers position size is much smaller than the original cabinet, as there

11、is no any oil circuit breaker, fire prevention performance is greatly improved, and you can buy a room with other low voltage equipment, saved a space already, and convenient management. Low voltage circuit breaker has been developed from the past large short-circuit capacity, small volume to big cu

12、rrent, high breaking capacity, small volume, stable performance, make the system more safe and reliable, and brought convenient to design. Low voltage circuit breaker in recent years and toward the intelligent direction, but will be a variety of parameters by industrial control bus of circuit breake

13、r, directly to the signal is transmitted to the computer. The occurrence of dry type transformer, for building electrical design has brought great convenience, because do not exist because of the transformer oil spill and the possibility of a fire, make it can be easily set in the interior of the bu

14、ilding, more directly into the load center. Also eliminates the building restrictions on oil transformer capacity, the dry type transformer can be used in a larger capacity in construction. Emergency power generator set, look from the performance and volume, all have a great progress than before. In

15、 addition to the diesel generating sets are used in engineering, as emergency lighting, EPS, can be used to allow the interruption of power supply in the millisecond equipment, can use UPS. Electrical equipment control, from the past single relay control to automatic control, in addition to the vari

16、ous components better performance, small volume, reduce control cabinet volume, more is mainly due to the adopted digital technology control, the controlled device in a state of optimal control, further to achieve the energy saving effect. 2现代建筑的弱电设计2. The weak current design of modern buildings 智能化技术只是一种手段,是通过对建筑智能功能的配备,强调高效率、低能耗、低污染,在