Physics, 02.12.2021 17:00 CristianPaz

Mạng điện hạ áp 380V dây dẫn bằng cáp đồng làm việc ở chế độ TN, có phân bố dây trung tính và có dây trung tính tại xuất tuyến. Cáp có tiết diện
(Cu/PVC/XLPE/PVC 3x95+1x50). Thiết bị được bảo vệ bằng MCCB loại C có dòng
định mức Iđm=250A, (hệ số kB=7), chiều dài đường dây đến chỗ đặt thiết bị là 70m. Hãy
kiểm tra điều kiện bảo vệ an toàn

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Mạng điện hạ áp 380V dây dẫn bằng cáp đồng làm việc ở chế độ TN, có phân bố dây trung tính và có d...

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