机房供电系统设计（Design of power supply system in engine room）.docVIP

机房供电系统设计（Design of power supply system in engine room） The importance of the computer room in the intelligent building determines the safety and reliability. It is the key point of the design of the power supply and distribution system. As the power supply and distribution system, lighting, equipment lightning protection, computer room grounding, UPS uninterruptible power supply and other general design of strong electricity is different, but also with the weak professional more than a dozen subsystems are closely related. Therefore, they are in the junction of strong and weak design division of labor. There are two kinds of technical specification in the interface, some provisions are not clear, the problem is: room subsystem design depth gap; the main weak room reserved position is not appropriate, the area is too large or too small; weak shaft grounding line and missing power capacity, UPS power outlet; support for various lengths of time; UPS power supply mode is centralized or decentralized power supply can not be determined; each subsystem and the grounding method is not standardized. In some design documents, it is often found that there are descriptions of text, unclear descriptions, systematic and graphic plans, and graphic symbols that are not in accordance with current drawings and standard drawings. The common power supply mode in the computer room is uninterruptible power supply (UPS). Uninterruptible power supply has become the main means of power supply in computer room due to the adoption of pulse width modulation technology, the maturity of high efficiency power devices and the development of microprocessors. The biggest feature of uninterruptible power supply is its uninterrupted nature, and it can provide the stable voltage to the maximum extent and isolate the interference from the external grid. Once the power grid, UPS can allow the equipment in a very short period of time (microseconds to milliseconds) automatically from the standby energy via