{"id":6741,"date":"2026-09-12T09:44:44","date_gmt":"2026-09-12T02:44:44","guid":{"rendered":"https:\/\/sunnysolar.vn\/?p=6741"},"modified":"2026-09-12T09:44:44","modified_gmt":"2026-09-12T02:44:44","slug":"cach-chon-tiet-dien-day-dien-cb-cong-suat-tai","status":"publish","type":"post","link":"https:\/\/sunnysolar.vn\/en\/cach-chon-tiet-dien-day-dien-cb-cong-suat-tai\/","title":{"rendered":"C\u00e1ch ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB theo c\u00f4ng su\u1ea5t t\u1ea3i"},"content":{"rendered":"

H\u01af\u1edaNG D\u1eaaN CH\u1eccN TI\u1ebeT DI\u1ec6N D\u00c2Y \u0110I\u1ec6N, CB V\u00c0 C\u00d4NG SU\u1ea4T T\u1ea2I PH\u00d9 H\u1ee2P<\/h1>\n

\"\"<\/p>\n

\n

C\u00e1ch ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n, CB v\u00e0 c\u00f4ng su\u1ea5t t\u1ea3i ph\u00f9 h\u1ee3p<\/h1>\n

Vi\u1ec7c ch\u1ecdn \u0111\u00fang ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB (aptomat)<\/strong> l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i, ph\u00e1t nhi\u1ec7t ho\u1eb7c h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb.<\/p>\n

Ti\u1ebft di\u1ec7n d\u00e2y c\u00e0ng l\u1edbn th\u00ec kh\u1ea3 n\u0103ng mang d\u00f2ng c\u00e0ng cao. Tuy nhi\u00ean, vi\u1ec7c l\u1ef1a ch\u1ecdn d\u00e2y d\u1eabn kh\u00f4ng n\u00ean ch\u1ec9 d\u1ef1a v\u00e0o c\u00f4ng su\u1ea5t thi\u1ebft b\u1ecb m\u00e0 c\u00f2n c\u1ea7n xem x\u00e9t chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng d\u00e2y, ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng, s\u1ed1 m\u1ea1ch \u0111i chung v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf.<\/p>\n

D\u1ef1a tr\u00ean b\u1ea3ng h\u01b0\u1edbng d\u1eabn trong h\u00ecnh \u1ea3nh, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng tham kh\u1ea3o t\u1eeb d\u00e2y 1,0 mm\u00b2 \u0111\u1ebfn 35 mm\u00b2<\/strong>, c\u00f9ng CB khuy\u1ebfn ngh\u1ecb, d\u00f2ng \u0111\u1ecbnh m\u1ee9c, c\u00f4ng su\u1ea5t t\u1ea3i t\u1ed1i \u0111a v\u00e0 \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh.<\/p>\n

\n

1. B\u1ea3ng ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ti\u1ebft di\u1ec7n d\u00e2y<\/th>\nCB khuy\u1ebfn ngh\u1ecb<\/th>\nD\u00f2ng \u0111\u1ecbnh m\u1ee9c<\/th>\nC\u00f4ng su\u1ea5t t\u1ea3i t\u1ed1i \u0111a<\/th>\n\u1ee8ng d\u1ee5ng tham kh\u1ea3o<\/th>\n<\/tr>\n<\/thead>\n
1,0 mm\u00b2<\/strong><\/td>\nC10<\/strong><\/td>\n10A<\/strong><\/td>\n2.300W<\/strong><\/td>\n\u0110\u00e8n chi\u1ebfu s\u00e1ng, thi\u1ebft b\u1ecb nh\u1ecf<\/td>\n<\/tr>\n
1,5 mm\u00b2<\/strong><\/td>\nC16<\/strong><\/td>\n16A<\/strong><\/td>\n3.600W<\/strong><\/td>\nTV, qu\u1ea1t, m\u1ea1ch chi\u1ebfu s\u00e1ng<\/td>\n<\/tr>\n
2,5 mm\u00b2<\/strong><\/td>\nC20<\/strong><\/td>\n20A<\/strong><\/td>\n4.600W<\/strong><\/td>\nT\u1ee7 l\u1ea1nh, l\u00f2 vi s\u00f3ng<\/td>\n<\/tr>\n
4,0 mm\u00b2<\/strong><\/td>\nC25<\/strong><\/td>\n25A<\/strong><\/td>\n5.750W<\/strong><\/td>\nM\u00e1y gi\u1eb7t, b\u00ecnh n\u00f3ng l\u1ea1nh<\/td>\n<\/tr>\n
6,0 mm\u00b2<\/strong><\/td>\nC32<\/strong><\/td>\n32A<\/strong><\/td>\n7.360W<\/strong><\/td>\n\u0110i\u1ec1u h\u00f2a 1,5 HP<\/td>\n<\/tr>\n
10 mm\u00b2<\/strong><\/td>\nC40<\/strong><\/td>\n40A<\/strong><\/td>\n9.200W<\/strong><\/td>\nL\u00f2 \u0111i\u1ec7n, m\u00e1y b\u01a1m n\u01b0\u1edbc<\/td>\n<\/tr>\n
16 mm\u00b2<\/strong><\/td>\nC63<\/strong><\/td>\n63A<\/strong><\/td>\n14.500W<\/strong><\/td>\nM\u00e1y m\u00f3c c\u00f4ng su\u1ea5t l\u1edbn, t\u1ee7 \u0111i\u1ec7n ph\u1ee5<\/td>\n<\/tr>\n
25 mm\u00b2<\/strong><\/td>\nC80<\/strong><\/td>\n80A<\/strong><\/td>\n18.400W<\/strong><\/td>\nPh\u00e2n ph\u1ed1i ch\u00ednh, thi\u1ebft b\u1ecb l\u1edbn<\/td>\n<\/tr>\n
35 mm\u00b2<\/strong><\/td>\nC100<\/strong><\/td>\n100A<\/strong><\/td>\n23.000W<\/strong><\/td>\nM\u00e1y ph\u00e1t \u0111i\u1ec7n, ngu\u1ed3n c\u1ea5p ch\u00ednh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

2. D\u00e2y \u0111i\u1ec7n 1,0 mm\u00b2 d\u00f9ng cho t\u1ea3i bao nhi\u00eau?<\/h1>\n

Theo b\u1ea3ng tham kh\u1ea3o:<\/p>\n

    \n
  • Ti\u1ebft di\u1ec7n: 1,0 mm\u00b2<\/strong><\/li>\n
  • CB: C10<\/strong><\/li>\n
  • D\u00f2ng \u0111\u1ecbnh m\u1ee9c: 10A<\/strong><\/li>\n
  • C\u00f4ng su\u1ea5t t\u1ed1i \u0111a tham kh\u1ea3o: 2.300W<\/strong><\/li>\n<\/ul>\n

    \u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh g\u1ed3m:<\/p>\n

      \n
    • \u0110\u00e8n chi\u1ebfu s\u00e1ng<\/li>\n
    • Thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f4ng su\u1ea5t nh\u1ecf<\/li>\n
    • C\u00e1c m\u1ea1ch \u0111i\u1ec7n d\u00e2n d\u1ee5ng c\u00f3 t\u1ea3i th\u1ea5p<\/li>\n<\/ul>\n

      \u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng su\u1ea5t l\u1edbn, kh\u00f4ng n\u00ean l\u1ef1a ch\u1ecdn d\u00e2y 1,0 mm\u00b2 ch\u1ec9 d\u1ef1a tr\u00ean c\u00f4ng su\u1ea5t danh \u0111\u1ecbnh m\u00e0 c\u1ea7n t\u00ednh to\u00e1n d\u00f2ng t\u1ea3i v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t.<\/p>\n

      \n

      3. D\u00e2y \u0111i\u1ec7n 1,5 mm\u00b2 v\u00e0 CB C16<\/h1>\n

      D\u00e2y 1,5 mm\u00b2<\/strong> trong b\u1ea3ng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi CB C16<\/strong>:<\/p>\n\n\n\n\n\n\n\n\n
      Th\u00f4ng s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
      Ti\u1ebft di\u1ec7n<\/td>\n1,5 mm\u00b2<\/strong><\/td>\n<\/tr>\n
      CB<\/td>\nC16<\/strong><\/td>\n<\/tr>\n
      D\u00f2ng \u0111\u1ecbnh m\u1ee9c<\/td>\n16A<\/strong><\/td>\n<\/tr>\n
      C\u00f4ng su\u1ea5t tham kh\u1ea3o<\/td>\n3.600W<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u1ee8ng d\u1ee5ng \u0111\u01b0\u1ee3c h\u00ecnh \u1ea3nh minh h\u1ecda g\u1ed3m:<\/p>\n

        \n
      • TV<\/li>\n
      • Qu\u1ea1t<\/li>\n
      • M\u1ea1ch chi\u1ebfu s\u00e1ng<\/li>\n
      • Thi\u1ebft b\u1ecb gia d\u1ee5ng c\u00f4ng su\u1ea5t v\u1eeba v\u00e0 nh\u1ecf<\/li>\n<\/ul>\n
        \n

        4. D\u00e2y \u0111i\u1ec7n 2,5 mm\u00b2 \u2013 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho t\u1ea3i d\u00e2n d\u1ee5ng<\/h1>\n

        D\u00e2y 2,5 mm\u00b2<\/strong> th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong c\u00e1c m\u1ea1ch \u1ed5 c\u1eafm v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n d\u00e2n d\u1ee5ng.<\/p>\n

        Theo b\u1ea3ng:<\/p>\n

        2,5 mm\u00b2 \u2192 CB C20 \u2192 20A \u2192 4.600W<\/strong><\/p>\n

        \u1ee8ng d\u1ee5ng tham kh\u1ea3o:<\/p>\n

          \n
        • T\u1ee7 l\u1ea1nh<\/li>\n
        • L\u00f2 vi s\u00f3ng<\/li>\n
        • \u1ed4 c\u1eafm \u0111i\u1ec7n<\/li>\n
        • Thi\u1ebft b\u1ecb gia d\u1ee5ng<\/li>\n<\/ul>\n

          Khi nhi\u1ec1u thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi, c\u1ea7n t\u00ednh t\u1ed5ng c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf<\/strong> thay v\u00ec ch\u1ec9 nh\u00ecn c\u00f4ng su\u1ea5t t\u1ed1i \u0111a tr\u00ean b\u1ea3ng.<\/p>\n

          \n

          5. D\u00e2y \u0111i\u1ec7n 4,0 mm\u00b2 \u2013 t\u1ea3i kho\u1ea3ng 5.750W<\/h1>\n

          \u0110\u1ed1i v\u1edbi d\u00e2y 4,0 mm\u00b2<\/strong>, b\u1ea3ng \u0111\u01b0a ra:<\/p>\n

            \n
          • CB khuy\u1ebfn ngh\u1ecb: C25<\/strong><\/li>\n
          • D\u00f2ng \u0111\u1ecbnh m\u1ee9c: 25A<\/strong><\/li>\n
          • C\u00f4ng su\u1ea5t t\u1ea3i t\u1ed1i \u0111a: 5.750W<\/strong><\/li>\n<\/ul>\n

            \u1ee8ng d\u1ee5ng tham kh\u1ea3o:<\/p>\n

              \n
            • M\u00e1y gi\u1eb7t<\/li>\n
            • B\u00ecnh n\u00f3ng l\u1ea1nh<\/li>\n
            • Thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f4ng su\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn<\/li>\n<\/ul>\n

              \u0110\u00e2y l\u00e0 nh\u00f3m t\u1ea3i c\u1ea7n \u0111\u1eb7c bi\u1ec7t quan t\u00e2m \u0111\u1ebfn \u0111\u01b0\u1eddng d\u00e2y c\u1ea5p \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n

              \n

              6. D\u00e2y \u0111i\u1ec7n 6,0 mm\u00b2 \u2013 t\u1ea3i 7.360W<\/h1>\n

              Theo h\u00ecnh \u1ea3nh:<\/p>\n

              6<\/mn>,<\/mo>0<\/mn>m<\/mi>m<\/mi>2<\/mn><\/msup>\u2192<\/mo>32<\/mn>A<\/mi>\u2192<\/mo>7.360<\/mn>W<\/mi><\/mrow><\/semantics><\/math><\/span><\/p>\n\n\n\n\n\n\n\n\n
              Th\u00f4ng s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
              Ti\u1ebft di\u1ec7n d\u00e2y<\/td>\n6,0 mm\u00b2<\/strong><\/td>\n<\/tr>\n
              CB<\/td>\nC32<\/strong><\/td>\n<\/tr>\n
              D\u00f2ng \u0111i\u1ec7n<\/td>\n32A<\/strong><\/td>\n<\/tr>\n
              C\u00f4ng su\u1ea5t tham kh\u1ea3o<\/td>\n7.360W<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Khi l\u1ef1a ch\u1ecdn d\u00e2y cho \u0111i\u1ec1u h\u00f2a, c\u1ea7n c\u0103n c\u1ee9 th\u00eam v\u00e0o c\u00f4ng su\u1ea5t \u0111i\u1ec7n th\u1ef1c t\u1ebf, d\u00f2ng kh\u1edfi \u0111\u1ed9ng v\u00e0 th\u00f4ng s\u1ed1 do nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb quy \u0111\u1ecbnh.<\/p>\n

              \n

              7. D\u00e2y \u0111i\u1ec7n 10 mm\u00b2 \u2013 t\u1ea3i 9.200W<\/h1>\n

              D\u00e2y 10 mm\u00b2<\/strong> trong b\u1ea3ng \u0111i k\u00e8m:<\/p>\n

              CB C40 \u2013 40A \u2013 9.200W<\/strong><\/p>\n

              \u1ee8ng d\u1ee5ng minh h\u1ecda:<\/p>\n

                \n
              • L\u00f2 \u0111i\u1ec7n<\/li>\n
              • M\u00e1y b\u01a1m n\u01b0\u1edbc<\/li>\n
              • C\u00e1c thi\u1ebft b\u1ecb c\u00f3 c\u00f4ng su\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn<\/li>\n<\/ul>\n

                V\u1edbi nh\u00f3m t\u1ea3i n\u00e0y, vi\u1ec7c l\u1ef1a ch\u1ecdn CB c\u1ea7n \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn, \u0111\u1ed3ng th\u1eddi ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng l\u00e0m vi\u1ec7c c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n

                \n

                8. D\u00e2y \u0111i\u1ec7n 16 mm\u00b2 \u2013 t\u1ea3i 14.500W<\/h1>\n

                Theo b\u1ea3ng:<\/p>\n\n\n\n\n\n\n\n\n\n
                Th\u00f4ng s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
                Ti\u1ebft di\u1ec7n<\/td>\n16 mm\u00b2<\/strong><\/td>\n<\/tr>\n
                CB<\/td>\nC63<\/strong><\/td>\n<\/tr>\n
                D\u00f2ng \u0111\u1ecbnh m\u1ee9c<\/td>\n63A<\/strong><\/td>\n<\/tr>\n
                C\u00f4ng su\u1ea5t tham kh\u1ea3o<\/td>\n14.500W<\/strong><\/td>\n<\/tr>\n
                \u1ee8ng d\u1ee5ng<\/td>\nM\u00e1y m\u00f3c c\u00f4ng su\u1ea5t l\u1edbn, t\u1ee7 \u0111i\u1ec7n ph\u1ee5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                D\u00e2y 16 mm\u00b2 ph\u00f9 h\u1ee3p \u0111\u1ec3 tham kh\u1ea3o cho c\u00e1c \u0111\u01b0\u1eddng c\u1ea5p \u0111i\u1ec7n c\u00f3 d\u00f2ng t\u1ea3i cao h\u01a1n so v\u1edbi h\u1ec7 th\u1ed1ng d\u00e2n d\u1ee5ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n

                \n

                9. D\u00e2y \u0111i\u1ec7n 25 mm\u00b2 \u2013 t\u1ea3i 18.400W<\/h1>\n

                V\u1edbi d\u00e2y 25 mm\u00b2<\/strong>, b\u1ea3ng \u0111\u01b0a ra:<\/p>\n

                25 mm\u00b2 \u2192 C80 \u2192 80A \u2192 18.400W<\/strong><\/p>\n

                \u1ee8ng d\u1ee5ng minh h\u1ecda:<\/p>\n

                  \n
                • \u0110\u01b0\u1eddng ph\u00e2n ph\u1ed1i ch\u00ednh<\/li>\n
                • Thi\u1ebft b\u1ecb c\u00f4ng su\u1ea5t l\u1edbn<\/li>\n
                • T\u1ee7 \u0111i\u1ec7n ph\u00e2n ph\u1ed1i<\/li>\n<\/ul>\n

                  \u1ede c\u1ea5p \u0111\u1ed9 n\u00e0y, vi\u1ec7c t\u00ednh to\u00e1n h\u1ec7 th\u1ed1ng c\u1ea7n to\u00e0n di\u1ec7n h\u01a1n, bao g\u1ed3m kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a d\u00e2y, CB, thanh c\u00e1i, t\u1ee7 \u0111i\u1ec7n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t.<\/p>\n

                  \n

                  10. D\u00e2y \u0111i\u1ec7n 35 mm\u00b2 \u2013 t\u1ea3i 23.000W<\/h1>\n

                  D\u00e2y 35 mm\u00b2<\/strong> l\u00e0 c\u1ea5p l\u1edbn nh\u1ea5t trong b\u1ea3ng h\u00ecnh \u1ea3nh.<\/p>\n\n\n\n\n\n\n\n\n\n
                  Th\u00f4ng s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
                  Ti\u1ebft di\u1ec7n<\/td>\n35 mm\u00b2<\/strong><\/td>\n<\/tr>\n
                  CB<\/td>\nC100<\/strong><\/td>\n<\/tr>\n
                  D\u00f2ng \u0111\u1ecbnh m\u1ee9c<\/td>\n100A<\/strong><\/td>\n<\/tr>\n
                  C\u00f4ng su\u1ea5t tham kh\u1ea3o<\/td>\n23.000W<\/strong><\/td>\n<\/tr>\n
                  \u1ee8ng d\u1ee5ng<\/td>\nM\u00e1y ph\u00e1t \u0111i\u1ec7n, ngu\u1ed3n c\u1ea5p ch\u00ednh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u0110\u00e2y l\u00e0 nh\u00f3m \u0111\u01b0\u1eddng d\u00e2y c\u00f3 d\u00f2ng \u0111i\u1ec7n l\u1edbn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho ngu\u1ed3n c\u1ea5p ch\u00ednh ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 t\u1ea3i l\u1edbn.<\/p>\n

                  \n

                  11. C\u00f4ng th\u1ee9c t\u00ednh c\u00f4ng su\u1ea5t t\u1eeb d\u00f2ng \u0111i\u1ec7n<\/h1>\n

                  C\u00e1c m\u1ee9c c\u00f4ng su\u1ea5t trong b\u1ea3ng \u0111\u01b0\u1ee3c t\u00ednh theo quan h\u1ec7 \u0111\u01a1n gi\u1ea3n:<\/p>\n

                  P<\/mi>=<\/mo>U<\/mi>\u00d7<\/mo>I<\/mi><\/mrow><\/semantics><\/math><\/span><\/p>\n

                  Trong \u0111\u00f3:<\/p>\n

                    \n
                  • P:<\/strong> C\u00f4ng su\u1ea5t, W<\/li>\n
                  • U:<\/strong> \u0110i\u1ec7n \u00e1p, V<\/li>\n
                  • I:<\/strong> D\u00f2ng \u0111i\u1ec7n, A<\/li>\n<\/ul>\n

                    V\u1edbi \u0111i\u1ec7n \u00e1p 230V<\/strong>:<\/p>\n

                    V\u00ed d\u1ee5 d\u00e2y 2,5 mm\u00b2 \u2013 20A<\/h3>\n

                    P<\/mi>=<\/mo>230<\/mn>\u00d7<\/mo>20<\/mn><\/mrow><\/semantics><\/math><\/span>P<\/mi>=<\/mo>4.600<\/mn>W<\/mi><\/mrow><\/semantics><\/math><\/span><\/p>\n

                    Do \u0111\u00f3 b\u1ea3ng ghi:<\/p>\n

                    20A \u2192 4.600W<\/strong><\/p>\n

                    V\u00ed d\u1ee5 d\u00e2y 6 mm\u00b2 \u2013 32A<\/h3>\n

                    P<\/mi>=<\/mo>230<\/mn>\u00d7<\/mo>32<\/mn>=<\/mo>7.360<\/mn>W<\/mi><\/mrow><\/semantics><\/math><\/span><\/p>\n

                    V\u00ed d\u1ee5 d\u00e2y 35 mm\u00b2 \u2013 100A<\/h3>\n

                    P<\/mi>=<\/mo>230<\/mn>\u00d7<\/mo>100<\/mn>=<\/mo>23.000<\/mn>W<\/mi><\/mrow><\/semantics><\/math><\/span><\/p>\n

                    Nh\u01b0 v\u1eady, c\u00e1c gi\u00e1 tr\u1ecb c\u00f4ng su\u1ea5t trong b\u1ea3ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean c\u01a1 s\u1edf 230V \u00d7 d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c<\/strong>.<\/p>\n

                    \n

                    12. V\u00ec sao kh\u00f4ng n\u00ean ch\u1ecdn d\u00e2y ch\u1ec9 d\u1ef1a v\u00e0o c\u00f4ng su\u1ea5t?<\/h1>\n

                    \u0110\u00e2y l\u00e0 \u0111i\u1ec3m r\u1ea5t quan tr\u1ecdng khi \u00e1p d\u1ee5ng b\u1ea3ng tra d\u00e2y \u0111i\u1ec7n v\u00e0o th\u1ef1c t\u1ebf.<\/p>\n

                    V\u00ed d\u1ee5, c\u00f9ng m\u1ed9t d\u00e2y d\u1eabn nh\u01b0ng \u0111i\u1ec1u ki\u1ec7n:<\/p>\n

                      \n
                    • \u0110i d\u00e2y trong \u1ed1ng<\/li>\n
                    • \u0110i \u00e2m t\u01b0\u1eddng<\/li>\n
                    • \u0110i n\u1ed5i<\/li>\n
                    • \u0110i trong m\u00e1ng c\u00e1p<\/li>\n
                    • Nhi\u1ec1u d\u00e2y \u0111i chung<\/li>\n
                    • M\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<\/ul>\n

                      c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u1ea3i d\u00f2ng kh\u00e1c nhau.<\/p>\n

                      Ngo\u00e0i ra, chi\u1ec1u d\u00e0i d\u00e2y<\/strong> c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 s\u1ee5t \u00e1p.<\/p>\n

                      V\u00ec v\u1eady, m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec7n th\u1ef1c t\u1ebf c\u1ea7n ki\u1ec3m tra \u0111\u1ed3ng th\u1eddi:<\/p>\n

                      D\u00f2ng t\u1ea3i \u2192 kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng c\u1ee7a d\u00e2y \u2192 CB b\u1ea3o v\u1ec7 \u2192 s\u1ee5t \u00e1p \u2192 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t.<\/strong><\/p>\n

                      \n

                      13. M\u1ed1i quan h\u1ec7 gi\u1eefa d\u00e2y d\u1eabn v\u00e0 CB<\/h1>\n

                      CB kh\u00f4ng ch\u1ec9 c\u00f3 nhi\u1ec7m v\u1ee5 \u0111\u00f3ng\/ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n m\u00e0 c\u00f2n \u0111\u00f3ng vai tr\u00f2 b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n.<\/p>\n

                      Nguy\u00ean t\u1eafc quan tr\u1ecdng l\u00e0:<\/p>\n

                      Kh\u00f4ng n\u00ean ch\u1ecdn CB c\u00f3 d\u00f2ng \u0111\u1ecbnh m\u1ee9c v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i cho ph\u00e9p c\u1ee7a d\u00e2y d\u1eabn trong \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf.<\/strong><\/p><\/blockquote>\n

                      V\u00ed d\u1ee5 theo b\u1ea3ng tham kh\u1ea3o:<\/p>\n

                      D\u00e2y 6 mm\u00b2 \u2192 C32 \u2192 32A<\/strong><\/p>\n

                      Kh\u00f4ng n\u00ean hi\u1ec3u r\u1eb1ng c\u1ee9 s\u1eed d\u1ee5ng d\u00e2y 6 mm\u00b2 th\u00ec m\u1ecdi tr\u01b0\u1eddng h\u1ee3p \u0111\u1ec1u c\u00f3 th\u1ec3 l\u1eafp CB 32A. Kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng th\u1ef1c t\u1ebf c\u1ee7a d\u00e2y c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i c\u00e1p v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t.<\/p>\n

                      \n

                      14. B\u1ea3ng tra nhanh ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n<\/h1>\n

                      N\u1ebfu c\u1ea7n tra nhanh, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea3ng sau:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                      Ti\u1ebft di\u1ec7n<\/th>\nCB<\/th>\nD\u00f2ng<\/th>\nC\u00f4ng su\u1ea5t 230V<\/th>\n<\/tr>\n<\/thead>\n
                      1,0 mm\u00b2<\/strong><\/td>\nC10<\/td>\n10A<\/td>\n2.300W<\/td>\n<\/tr>\n
                      1,5 mm\u00b2<\/strong><\/td>\nC16<\/td>\n16A<\/td>\n3.600W<\/td>\n<\/tr>\n
                      2,5 mm\u00b2<\/strong><\/td>\nC20<\/td>\n20A<\/td>\n4.600W<\/td>\n<\/tr>\n
                      4,0 mm\u00b2<\/strong><\/td>\nC25<\/td>\n25A<\/td>\n5.750W<\/td>\n<\/tr>\n
                      6,0 mm\u00b2<\/strong><\/td>\nC32<\/td>\n32A<\/td>\n7.360W<\/td>\n<\/tr>\n
                      10 mm\u00b2<\/strong><\/td>\nC40<\/td>\n40A<\/td>\n9.200W<\/td>\n<\/tr>\n
                      16 mm\u00b2<\/strong><\/td>\nC63<\/td>\n63A<\/td>\n14.500W<\/td>\n<\/tr>\n
                      25 mm\u00b2<\/strong><\/td>\nC80<\/td>\n80A<\/td>\n18.400W<\/td>\n<\/tr>\n
                      35 mm\u00b2<\/strong><\/td>\nC100<\/td>\n100A<\/td>\n23.000W<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                      \n

                      15. 5 b\u01b0\u1edbc ch\u1ecdn d\u00e2y \u0111i\u1ec7n v\u00e0 CB<\/h1>\n

                      B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh c\u00f4ng su\u1ea5t t\u1ea3i<\/h3>\n

                      T\u00ednh t\u1ed5ng c\u00f4ng su\u1ea5t c\u00e1c thi\u1ebft b\u1ecb d\u1ef1 ki\u1ebfn s\u1eed d\u1ee5ng.<\/p>\n

                      B\u01b0\u1edbc 2: T\u00ednh d\u00f2ng \u0111i\u1ec7n<\/h3>\n

                      V\u1edbi t\u1ea3i 1 pha \u0111\u01a1n gi\u1ea3n:<\/p>\n

                      I<\/mi>=<\/mo>P<\/mi>U<\/mi><\/mfrac><\/mrow><\/semantics><\/math><\/span><\/p>\n

                      B\u01b0\u1edbc 3: Ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y<\/h3>\n

                      Ch\u1ecdn d\u00e2y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng t\u1ea3i v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t.<\/p>\n

                      B\u01b0\u1edbc 4: Ch\u1ecdn CB<\/h3>\n

                      CB ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng t\u1ea3i v\u00e0 \u0111\u1ea3m b\u1ea3o b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn.<\/p>\n

                      B\u01b0\u1edbc 5: Ki\u1ec3m tra s\u1ee5t \u00e1p<\/h3>\n

                      \u0110\u1ed1i v\u1edbi \u0111\u01b0\u1eddng d\u00e2y d\u00e0i, c\u1ea7n t\u00ednh to\u00e1n s\u1ee5t \u00e1p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec7n \u00e1p \u0111\u1ebfn thi\u1ebft b\u1ecb n\u1eb1m trong gi\u1edbi h\u1ea1n cho ph\u00e9p.<\/p>\n

                      \n

                      16. Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p khi ch\u1ecdn d\u00e2y \u0111i\u1ec7n<\/h1>\n

                      Ch\u1ecdn d\u00e2y qu\u00e1 nh\u1ecf<\/h3>\n

                      C\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn:<\/p>\n

                        \n
                      • D\u00e2y n\u00f3ng<\/li>\n
                      • T\u0103ng t\u1ed5n th\u1ea5t<\/li>\n
                      • S\u1ee5t \u00e1p<\/li>\n
                      • \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft b\u1ecb<\/li>\n
                      • T\u0103ng nguy c\u01a1 s\u1ef1 c\u1ed1 do qu\u00e1 t\u1ea3i<\/li>\n<\/ul>\n

                        Ch\u1ecdn CB qu\u00e1 l\u1edbn<\/h3>\n

                        N\u1ebfu CB c\u00f3 d\u00f2ng \u0111\u1ecbnh m\u1ee9c qu\u00e1 cao so v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a d\u00e2y, kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p.<\/p>\n

                        Ch\u1ec9 d\u1ef1a v\u00e0o c\u00f4ng su\u1ea5t thi\u1ebft b\u1ecb<\/h3>\n

                        C\u1ea7n xem x\u00e9t th\u00eam:<\/p>\n

                          \n
                        • D\u00f2ng kh\u1edfi \u0111\u1ed9ng<\/li>\n
                        • H\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t<\/li>\n
                        • Th\u1eddi gian v\u1eadn h\u00e0nh<\/li>\n
                        • Chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng d\u00e2y<\/li>\n
                        • Ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t<\/li>\n<\/ul>\n

                          Kh\u00f4ng t\u00ednh s\u1ee5t \u00e1p<\/h3>\n

                          \u0110\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng d\u00e2y d\u00e0i, c\u1ea7n ki\u1ec3m tra s\u1ee5t \u00e1p tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh ti\u1ebft di\u1ec7n d\u00e2y.<\/p>\n

                          \n

                          17. K\u1ebft lu\u1eadn<\/h1>\n

                          Ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB \u0111\u00fang c\u00e1ch<\/strong> gi\u00fap h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

                          B\u1ea3ng tham kh\u1ea3o trong h\u00ecnh cung c\u1ea5p c\u00e1c m\u1ee9c t\u1eeb 1,0 mm\u00b2 \u0111\u1ebfn 35 mm\u00b2<\/strong>, t\u01b0\u01a1ng \u1ee9ng v\u1edbi d\u00f2ng 10A \u0111\u1ebfn 100A<\/strong> v\u00e0 c\u00f4ng su\u1ea5t t\u00ednh theo \u0111i\u1ec7n \u00e1p 230V t\u1eeb 2.300W \u0111\u1ebfn 23.000W<\/strong>.<\/p>\n

                          Tuy nhi\u00ean, \u0111\u00e2y l\u00e0 b\u1ea3ng tham kh\u1ea3o nhanh<\/strong>, kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng nh\u01b0 b\u1ea3ng duy nh\u1ea5t \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec7n th\u1ef1c t\u1ebf. \u0110\u1ed1i v\u1edbi c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng, nh\u00e0 x\u01b0\u1edfng ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi, c\u1ea7n ki\u1ec3m tra th\u00eam kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng c\u1ee7a c\u00e1p, s\u1ee5t \u00e1p, \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t, nhi\u1ec7t \u0111\u1ed9, ph\u01b0\u01a1ng ph\u00e1p \u0111i d\u00e2y v\u00e0 ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt \u00e1p d\u1ee5ng<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"

                          H\u01af\u1edaNG D\u1eaaN CH\u1eccN TI\u1ebeT DI\u1ec6N D\u00c2Y \u0110I\u1ec6N, CB V\u00c0 C\u00d4NG SU\u1ea4T T\u1ea2I PH\u00d9 H\u1ee2P C\u00e1ch ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n, CB v\u00e0 c\u00f4ng su\u1ea5t t\u1ea3i ph\u00f9 h\u1ee3p Vi\u1ec7c ch\u1ecdn \u0111\u00fang ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB (aptomat) l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng […]","protected":false},"author":1,"featured_media":6742,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-6741","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"\nC\u00e1ch ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB theo c\u00f4ng su\u1ea5t t\u1ea3i - Sunny Solar<\/title>\n<meta name=\"description\" content=\"H\u01b0\u1edbng d\u1eabn ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n, CB v\u00e0 c\u00f4ng su\u1ea5t t\u1ea3i ph\u00f9 h\u1ee3p t\u1eeb 1.0mm\u00b2 \u0111\u1ebfn 35mm\u00b2. B\u1ea3ng tra d\u00e2y \u0111i\u1ec7n, d\u00f2ng \u0111\u1ecbnh m\u1ee9c v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sunnysolar.vn\/en\/cach-chon-tiet-dien-day-dien-cb-cong-suat-tai\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n v\u00e0 CB theo c\u00f4ng su\u1ea5t t\u1ea3i - Sunny Solar\" \/>\n<meta property=\"og:description\" content=\"H\u01b0\u1edbng d\u1eabn ch\u1ecdn ti\u1ebft di\u1ec7n d\u00e2y \u0111i\u1ec7n, CB v\u00e0 c\u00f4ng su\u1ea5t t\u1ea3i ph\u00f9 h\u1ee3p t\u1eeb 1.0mm\u00b2 \u0111\u1ebfn 35mm\u00b2. 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