1、外文文献Abstract This paper analyzes Chinas current power supply and distribution of tall buildings in several fire design, combined with specification and engineering examples for the distribution of the current high-rise building design to explore the problems and propose appropriate solutions.Key wor
2、dshigh-rise building fire Supply Emergency Power Supply Power SupplyAs Chinas national economic development, building more and more land, more and more precious land resources, prompting the development of various types of construction to the high-level, so high-rise building fire safety is increasi
3、ngly a cause-oriented. For the characteristics of high-rise building fires, high-rise building fire safety design should be based on self-defense self-help, while the fire service for the distribution is to ensure the normal operation of the key fire-fighting facilities, directly related to high-ris
4、e building fire safety. Therefore, this article from the fire power configuration, fire distribution, fire electrical wiring for high-rise building power supply and distribution reliability analysis, propose appropriate solutions to ensure high-rise building fire safety standards. 1. High-rise build
5、ing fire power scheme 1.1 specification power supply requirements for fireAccording to fire protection design of tall buildings (hereinafter referred to as high regulation) provides high-rise building fire power should be the current national standard for power distribution system design specificati
6、ons, the requirements of the design, a class of construction by a load of required power supply, second-class high-rise buildings should be two power load requirements. According to civil electrical specifications (JGJ/T16-92) provides a load consists of two power supply, when a power failure, the o
7、ther at the same time the power outage Buzhi Yu; a load is especially important in load, in addition to the above-mentioned two power supplies, the Must also be an additional emergency power supply of the third power; 2 load power should make sure that when the power transformer failure or circuit c
8、ommon failure, without interruption of power supply (or the rapid recovery after the interruption), the load is relatively small or regional power supply The difficult conditions, the two loads can be more than a return to 6KV dedicated overhead power lines or cables. 1.2 The composition of high-ris
9、e building fire powerFire power is to ensure that high-rise building and fire normally fire-fighting equipment under normal electricity supply. Generally considered the main power supply and pose a fire emergency power supply. When the main power failure, emergency power supply can continue to suppl
10、y to the fire-fighting equipment. Commonly used in emergency power supply are: (1) independent of the normal power-generating units (2) power supply network, independent of the normal power supply dedicated feeder circuit. (3) battery; (4) dry batteries. 1.3 common Fire Power 1.3.1 Dual Power high-v
11、oltage single-supply bus is not sub -Dual power high-voltage power supply section is not a single bus, two-loop high-voltage power supply at the same time, prepare a normal one to use, in this way to reduce contact between cabinets and a voltage transformer cabinet, saving infrastructure investment,
12、 reducing the high voltage distribution Electric room building area is beneficial to both, this approach requires two-way are guaranteed 100% of the load of electricity, when the cleaning bus or bus failure will cause all the power outages, poor reliability of their electricity supply is generally n
13、ot used in high-rise construction. 1.3.2 Dual Power high-voltage single-supply busbar sectionDual power supply high-pressure single-busbar sub-way, two-loop high-voltage power supply at the same time, each other back. High reliability of this approach, particularly for electrical equipment, fire two
14、 power requirements at the last and easy to implement the provisions of a switch, which is relatively common wiring. 1.3.3 3 power supply high-pressure single-bus sub -Three sub-power high-voltage single power supply bus, three-loop high-voltage power supply, the normal dual-use when a preparation,
15、this approach has a high reliability, suitable for a larger load capacity of the important users. 1.3.4 a main high voltage power supply, 380V power supply for the city, emergency power supply network Smaller building, was not by the consumption, the local access to two power supplies and difficult,
16、 in the vicinity have 380V power supply when the main power supply can be used a high-voltage power supply, 380V power supply for emergency power supply. If the economy can also be allowed if the use of diesel generator sets for emergency power supply. 1.4 plus the idea of diesel-powered generator setsAt present high-rise buildings, international and domestic universal power supply is based on the dual-power supply was equip
