無畏,堅守,突破2XV9450-1PN00世界就在眼前
《高層民用建筑設(shè)計防火規(guī)范》(GB545-95)中7.5.3條也規(guī)定，消防給水系統(tǒng)應(yīng)設(shè)置備用消防水泵。消防泵的主備用切換是實現(xiàn)消防備用泵投人工作的重要手段，也是消防給水系統(tǒng)可靠、安全運行的重要環(huán)節(jié)。、消防泵的主備用切換方法從消防泵啟動信號的采集和控制角度來看，設(shè)計中消防泵的主備用切換主要有兩種方法。其關(guān)鍵是控制信號來源的選擇，它可分為電流信號控制方法和壓力信號控制方法。通常消防泵的主備用泵均需按互為備用的方式進(jìn)行設(shè)計。
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