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應(ying)急(ji)照(zhao)明集中(zhong)(zhong)電(dian)(dian)源(yuan)是(shi)安裝(zhuang)在建(jian)筑(zhu)物內的備用集中(zhong)(zhong)式(shi)集中(zhong)(zhong)電(dian)(dian)源(yuan)裝(zhuang)置(zhi)。當建(jian)筑(zhu)物發生火災，事故或者其(qi)他緊(jin)急(ji)情(qing)況時,集中(zhong)(zhong)電(dian)(dian)源(yuan)可以為消防標志燈、照(zhao)明燈提供應(ying)急(ji)供電(dian)(dian),保證消防應(ying)急(ji)照(zhao)明和疏散指示系(xi)統止常(chang)工作.