在高層建筑供電設(shè)計(jì)中，首先必須明顯什么情況下應(yīng)設(shè)置柴油發(fā)電機(jī)組，我們先從高層建筑的負(fù)荷等級談起：

In the power supply design of high-rise building, it is necessary to set up diesel generating set obviously. Under the circumstances, we should start with the loading level of the high-rise building:

高層建筑中的消防水泵、防排煙設(shè)施、消防電梯、應(yīng)急照明等消防用電，一類高層建筑應(yīng)安一級負(fù)荷要求供電，二類高層建筑應(yīng)按二級負(fù)荷要求供電。

Fire fighting pumps, smoke control facilities, fire elevators and emergency lighting in high-rise buildings, such as a class of high-rise buildings should be required to supply power at the first level, and two types of high-rise buildings should be powered by two level load requirements.

一級負(fù)荷應(yīng)由兩個(gè)電源共電。二級負(fù)荷當(dāng)條件允許時(shí)也宜由兩個(gè)回路供電，特別是屬于消防用電的二級負(fù)荷，應(yīng)按二級負(fù)荷的兩個(gè)回路要求供電。由此可見，高層建筑對供電的可靠性要求較高，都要求兩個(gè)電源供電。因此，考慮設(shè)置柴油發(fā)電機(jī)組的原則如下：

The first load shall be supplied by two power supplies. Two stage load, when conditions permit, should also be supplied by two circuits, especially belonging to the two stage load of fire fighting electricity, and the power supply should be supplied according to the two circuit requirements of the two stage load. Thus, the high power supply of high-rise building reliability requirements, require two power supply. Therefore, the principle of setting up diesel generating set is as follows:

對電網(wǎng)能夠提供二個(gè)獨(dú)立電源的高層建筑，按規(guī)范已經(jīng)滿足了一、二級負(fù)荷的要求，原則上可不設(shè)柴油發(fā)電機(jī)組。但是，對于特別重要的高層建筑(如超高層建筑)，其內(nèi)部含有特別重要負(fù)荷，應(yīng)考慮一電源系統(tǒng)檢修或故障時(shí)，另一電源系統(tǒng)又發(fā)生故障的嚴(yán)重情況，此時(shí)一般應(yīng)設(shè)柴油發(fā)電機(jī)組做應(yīng)急電源。

For the power grid to provide two independent power supply of high-rise buildings, according to specifications, has met the requirements of the one or two level load, in principle, no diesel generator sets. However, it is important for the high-rise buildings (such as high-rise building), which contains the special important load, should be considered a fault or maintenance of power system, power system and other serious fault occurs, the general should set diesel generator for emergency power supply.

對于當(dāng)?shù)仉娋W(wǎng)只能提供一路電源、或取得第二電源有困難或不經(jīng)濟(jì)合理的高層建筑，應(yīng)設(shè)柴油發(fā)電機(jī)組提供第二電源。此時(shí)，柴油發(fā)電機(jī)組是作為備用電源使用，不僅僅是應(yīng)急用。

For the local power grid can only provide a power supply, or access to second power supply difficult or uneconomical and reasonable high-rise buildings, diesel generator sets should be provided to provide second power supply. At this point, diesel generators are used as backup power sources, not just for emergency use.

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