二级用电负荷（非消防负荷）是否需要末端互投

秋风扫落叶飞

背景：做了一个劳教所的寝室楼，该劳教所并不是关押犯人的地方，是一些强制劳动人员平时住的地方，周末劳教人员可以回家，礼拜一到礼拜五在里面住宿劳动。
寝室楼的负荷我按二级设计，变电所由双回路10KV供电，里面有两台互为100%备用的变压器，这些我都交代在说明里面了，设计中寝室楼由变电所引来两路（主、备）电缆给寝室楼供电，现在审图说要求我寝室楼里面所有的负荷全部要在末端互投，我没有在末端切换违反了强条，也没指出是那条啊，我找了半天规范上就要求一级负荷和二级消防负荷要求末端切换。




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hanson1987

我自己查询，二级负荷不是强制双电源，而且切换都是不在末端。在电源侧

wangguichao66

hanson1987 发表于 2024-9-10 15:19
我自己查询，二级负荷不是强制双电源，而且切换都是不在末端。在电源侧

你看看GB51348-3.2.11第3款，
是不是可以理解为只要不满足双重电源就不可以“二级负荷可由任一段低压母线单回路供电”。

碰到这种奇葩的要求别的地方找不到依据就在神奇的GB51348里找吧。

wangguichao66

顺便提醒一下，寝室楼别全部定为二级负荷，有规范依据的用电负荷如通道照明、安防等定为二级负荷就行了。

777777777

二级负荷不用末端互投，但是你这种建筑就不好说了，说是什么安全也好，各种乱七八糟的也好，说规范就有点离谱了

我们项目都是双路+油机+2路ups保障特级负荷电源稳定性 你能说啥