2025/12/9 8:43:21zhui
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
评论信息一个电工常用的“经验公式”：只要是铜芯电线，每平方毫米的截面积可以安全通过4--5A的额定电流；在220V单相电路中，每1KW的功率，其电流约为4.5A左右；在380V三相平衡电路中，每1KW的功率，其电流约为2A左右。上面的这些值，可用物理计算公式算下来的结果是很接近的，所…
2025/12/9 8:31:57ni
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 8:04:50ru
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 7:58:24yu
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 7:47:47bin
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 7:39:15biao
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 6:43:27yi
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 6:25:23ni
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 6:15:29yu
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 5:43:52lang
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 5:25:59zhua
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 5:15:26gu
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 5:13:37zi
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 5:07:08chi
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 4:23:20wu
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 4:05:09gui
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 4:01:29kuai
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 4:00:03hui
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 3:41:35xuan
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 3:14:20jie
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
我要评论