https://www.kanwenda.com/一个全面的问答平台https://www.kanwenda.com/k/975512.html<strong>消防图例符号p啥意思</strong><p>消防图例符号p是表示低压压力开关，低压压力开关的配置：消防各系统的稳压通常有3种型式：</p><p>　　（1）利用屋顶消防高位水箱位置高度稳压；</p><p>　　（2）高位消防水箱配置上置式稳压泵稳压；</p><p>　　（3）由下置式稳压泵或稳高压供水装置稳压。</p><p>　　其中利用屋顶消防水箱稳压的系统压力下降值幅度由水箱水位变化确定，其下降范围通常为1~2m左右。在确定“低压压力开关”型式和灵敏度要求时，应根据稳压方式及压力变化幅度的具体情况来确定“低压压力开关”自动启泵信号动作的压力下降值，因水箱水位变化幅度小，要选用对压力降变化较为敏感的低压压力开关。</p>Wed, 06 May 2026 19:27:48 +0800https://www.kanwenda.com/k/975511.htmlWed, 06 May 2026 19:17:47 +0800https://www.kanwenda.com/k/975510.htmlWed, 06 May 2026 18:52:24 +0800https://www.kanwenda.com/k/975509.htmlWed, 06 May 2026 18:42:18 +0800https://www.kanwenda.com/k/975508.htmlWed, 06 May 2026 18:37:15 +0800https://www.kanwenda.com/k/975507.htmlWed, 06 May 2026 18:17:10 +0800https://www.kanwenda.com/k/975506.htmlWed, 06 May 2026 18:12:07 +0800https://www.kanwenda.com/k/975505.htmlWed, 06 May 2026 18:02:05 +0800https://www.kanwenda.com/k/975504.htmlWed, 06 May 2026 17:47:02 +0800https://www.kanwenda.com/k/975503.htmlWed, 06 May 2026 17:42:00 +0800