{"id":4766,"date":"2026-11-11T17:07:12","date_gmt":"2026-11-11T17:07:12","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=4766"},"modified":"2026-11-11T17:07:14","modified_gmt":"2026-11-11T17:07:14","slug":"circuit-breaker-price-in-bangladesh","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/vi\/blog\/circuit-breaker-price-in-bangladesh\/","title":{"rendered":"Gi\u00e1 C\u1ea7u Dao Ph\u00e2n Ph\u1ed1i t\u1ea1i Bangladesh"},"content":{"rendered":"

Gi\u00e1 c\u1ee7a c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch t\u1ea1i Bangladesh v\u00e0o n\u0103m 2026 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ba y\u1ebfu t\u1ed1 kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn b\u1ed9 ng\u1eaft m\u1ea1ch: thu\u1ebf nh\u1eadp kh\u1ea9u, bi\u00ean \u0111\u1ed9 ph\u00e2n ph\u1ed1i n\u1ed9i \u0111\u1ecba c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u, v\u00e0 vi\u1ec7c b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c nh\u1eadp kh\u1ea9u qua k\u00eanh ch\u00ednh h\u00e3ng hay th\u1ecb tr\u01b0\u1eddng x\u00e1m. Do \u0111\u00f3, v\u00ed d\u1ee5, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch thu nh\u1ecf 32 A c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi gi\u00e1 250 Taka t\u1ea1i Dhaka v\u00e0 900 Taka t\u1ea1i Dhaka, v\u00e0 c\u1ea3 hai ng\u01b0\u1eddi b\u00e1n \u0111\u1ec1u c\u00f3 th\u1ec3 thu l\u1ee3i nhu\u1eadn.<\/p>\n

T\u00f3m l\u1ea1i, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch thu nh\u1ecf t\u1eeb 6 \u0111\u1ebfn 32 A c\u00f3 gi\u00e1 kho\u1ea3ng 250-900 Taka t\u1ea1i Dhaka; m\u1ed9t MCB 63 A \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi gi\u00e1 kho\u1ea3ng 900-2,500 Taka; m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac 100 A c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y v\u1edbi gi\u00e1 4,500-12,000 Taka; 15,000-45,000 Taka cho m\u1ed9t MCCB 250 A; v\u00e0 400,000 Taka tr\u1edf l\u00ean cho m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng kh\u00ed. RCCB v\u00e0 RCBO c\u00f3 gi\u00e1 t\u1eeb 2,500-8,000 Taka. Chi ph\u00ed c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m th\u01b0\u01a1ng hi\u1ec7u ch\u00e2u \u00c2u th\u01b0\u1eddng g\u1ea5p hai \u0111\u1ebfn b\u1ed1n l\u1ea7n so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m Trung Qu\u1ed1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, v\u00ec m\u1ee9c gi\u00e1 cao h\u01a1n d\u00e0nh cho d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 ch\u1ee9ng nh\u1eadn c\u00f3 th\u1ec3 x\u00e1c minh \u0111\u01b0\u1ee3c thay v\u00ec c\u01a1 ch\u1ebf t\u1ed1t h\u01a1n. B\u1ed9 ng\u1eaft m\u1ea1ch DC th\u01b0\u1eddng c\u00f3 gi\u00e1 cao h\u01a1n 30-60% so v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch AC c\u00f9ng \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n.<\/p><\/blockquote>\n

C\u00e1c ph\u1ea7n ti\u1ebfp theo cung c\u1ea5p chi ph\u00ed cho c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch theo lo\u1ea1i, \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n, lo\u1ea1i th\u01b0\u01a1ng hi\u1ec7u, lo\u1ea1i d\u00f2ng \u0111i\u1ec7n v\u00e0 t\u1ed5ng chi ph\u00ed, bao g\u1ed3m ph\u00ed tu\u00e2n th\u1ee7 v\u00e0 thu\u1ebf. Ph\u1ea7n cu\u1ed1i c\u00f9ng th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c \u0111i\u1ec3m h\u1ecfng h\u00f3c c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch gi\u00e1 r\u1ebb v\u00e0 c\u00e1ch \u01b0\u1edbc t\u00ednh ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n.<\/p>\n

Chi ph\u00ed c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch t\u1ea1i Bangladesh n\u0103m 2026<\/h2>\n

H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch t\u1ea1i Bangladesh \u0111\u1ec1u \u0111\u01b0\u1ee3c nh\u1eadp kh\u1ea9u. Chi ph\u00ed c\u1ee7a ch\u00fang bao g\u1ed3m gi\u00e1 nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ed9ng v\u1edbi c\u01b0\u1edbc v\u1eadn chuy\u1ec3n, thu\u1ebf, VAT, bi\u00ean \u0111\u1ed9 l\u1ee3i nhu\u1eadn cho nh\u00e0 nh\u1eadp kh\u1ea9u v\u00e0 nh\u00e0 b\u00e1n l\u1ebb. Do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch t\u1ea1i Dhaka th\u01b0\u1eddng c\u00f3 gi\u00e1 cao h\u01a1n 40-60% so v\u1edbi gi\u00e1 FOB v\u00e0 vi\u1ec7c so s\u00e1nh b\u00e1o gi\u00e1 trong n\u01b0\u1edbc v\u1edbi c\u00e1c \u0111\u1ec1 ngh\u1ecb tr\u00ean Alibaba c\u00f3 th\u1ec3 g\u00e2y hi\u1ec3u l\u1ea7m.<\/p>\n

T\u1ef7 gi\u00e1 BDT so v\u1edbi USD \u0111\u00f3ng vai tr\u00f2 ngang b\u1eb1ng v\u1edbi thu\u1ebf quan. V\u00e0o n\u0103m 2026, t\u1ef7 gi\u00e1 d\u1ef1 ki\u1ebfn kho\u1ea3ng 120 \u0111\u1ebfn 125 BDT cho m\u1ed7i USD v\u00e0 do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c b\u00e1o gi\u00e1 6 USD FOB s\u1ebd c\u00f3 gi\u00e1 kho\u1ea3ng 730 BDT tr\u01b0\u1edbc thu\u1ebf v\u00e0 gi\u00e1 b\u00e1n l\u1ebb cu\u1ed1i c\u00f9ng (t\u1eeb 1,100 \u0111\u1ebfn 1,300 BDT) l\u00e0 h\u1ee3p l\u00fd, kh\u00f4ng b\u1ecb th\u1ed5i ph\u1ed3ng.<\/p>\n

C\u00f3 ba ph\u00e2n kh\u00fac mua h\u00e0ng trong th\u1ecb tr\u01b0\u1eddng \u0111i\u1ec7n. C\u00e1c khu v\u1ef1c d\u00e2n c\u01b0 v\u00e0 th\u01b0\u01a1ng m\u1ea1i mua b\u1ed9 ng\u1eaft m\u1ea1ch thu nh\u1ecf t\u1eeb c\u00e1c c\u1eeda h\u00e0ng cung c\u1ea5p \u0111i\u1ec7n t\u1ea1i Dhaka, Chittagong v\u00e0 Sylhet. C\u00e1c d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p mua b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng kh\u00ed t\u1eeb c\u00e1c nh\u00e0 ph\u00e2n ph\u1ed1i ch\u00ednh h\u00e3ng d\u1ef1a tr\u00ean th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. Khu v\u1ef1c ti\u1ec7n \u00edch v\u00e0 khu v\u1ef1c ch\u00ednh ph\u1ee7 mua thi\u1ebft b\u1ecb \u0111i\u1ec7n th\u00f4ng qua c\u00e1c g\u00f3i th\u1ea7u c\u1ea1nh tranh d\u1ef1a tr\u00ean th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 ti\u00eau chu\u1ea9n, lo\u1ea1i th\u01b0\u01a1ng hi\u1ec7u v\u00e0 ch\u1ee9ng nh\u1eadn ki\u1ec3m tra.<\/p>\n

M\u1ed7i h\u00e0ng trong b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y so s\u00e1nh gi\u00e1 c\u1ee7a t\u1eebng s\u1ea3n ph\u1ea9m t\u1eeb gi\u00e1 th\u1ea5p nh\u1ea5t \u0111\u1ebfn gi\u00e1 cao nh\u1ea5t c\u1ee7a c\u00f9ng lo\u1ea1i s\u1ea3n ph\u1ea9m. Trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, t\u1ef7 l\u1ec7 gi\u1eefa s\u1ea3n ph\u1ea9m c\u00f3 gi\u00e1 th\u1ea5p nh\u1ea5t v\u00e0 s\u1ea3n ph\u1ea9m c\u00f3 gi\u00e1 cao nh\u1ea5t dao \u0111\u1ed9ng t\u1eeb hai \u0111\u1ebfn b\u1ed1n l\u1ea7n. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u1ee7 y\u1ebfu xu\u1ea5t ph\u00e1t t\u1eeb t\u00ean th\u01b0\u01a1ng hi\u1ec7u v\u00e0 ch\u1ee9ng nh\u1eadn h\u01a1n l\u00e0 t\u1eeb kh\u1ea3 n\u0103ng v\u1ed1n c\u00f3 c\u1ee7a s\u1ea3n ph\u1ea9m. V\u00ed d\u1ee5, MCB 32 A c\u00f3 gi\u00e1 th\u1ea5p nh\u1ea5t do m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t uy t\u00edn s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 ng\u1eaft d\u00f2ng t\u1ed1i \u0111a 6 kA.<\/p>\n

Do \u0111\u00f3, m\u1ed7i MCB 32 A do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng ng\u1eaft d\u00f2ng 6 kA, tuy nhi\u00ean \u0111\u1ed9 nh\u1ea5t qu\u00e1n trong hi\u1ec7u chu\u1ea9n, ch\u1ea5t l\u01b0\u1ee3ng m\u1ea1 v\u00e0 kh\u1ea3 n\u0103ng x\u00e1c th\u1ef1c ch\u1ee9ng nh\u1eadn l\u1ea1i kh\u00e1c nhau r\u1ea5t nhi\u1ec1u gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t. V\u00ec v\u1eady C\u00e1c d\u00f2ng MCB c\u00f4ng b\u1ed1 c\u1ea3 dung sai hi\u1ec7u chu\u1ea9n v\u00e0 c\u00e1c l\u1edbp kh\u1ea3 n\u0103ng ng\u1eaft d\u00f2ng<\/a> d\u1ec5 d\u00e0ng so s\u00e1nh h\u01a1n so v\u1edbi c\u00e1c d\u00f2ng MCB ch\u1ec9 c\u00f4ng b\u1ed1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n.<\/p>\n

\"\"<\/p>\n

Gi\u00e1 theo \u0111\u1ecbnh m\u1ee9c; Trong c\u00f9ng m\u1ed9t lo\u1ea1i<\/h2>\n

\u0110\u1ed1i v\u1edbi m\u1ed9t d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3, t\u0103ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c t\u0103ng gi\u00e1 t\u1ef7 l\u1ec7 thu\u1eadn cho c\u00f9ng m\u1ed9t s\u1ea3n ph\u1ea9m. B\u1eb1ng c\u00e1ch bi\u1ebft c\u00e1c b\u01b0\u1edbc t\u0103ng gi\u00e1 trong m\u1ed7i lo\u1ea1i s\u1ea3n ph\u1ea9m, b\u1ea1n c\u00f3 th\u1ec3 l\u1eadp ng\u00e2n s\u00e1ch mua h\u00e0ng ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
B\u01b0\u1edbc \u0111\u1ecbnh m\u1ee9c<\/th>\n\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1<\/th>\nL\u00fd do<\/th>\n<\/tr>\n<\/thead>\n
MCB 6 A \u0111\u1ebfn 32 A<\/td>\nG\u1ea7n nh\u01b0 b\u1eb1ng ph\u1eb3ng, 10-25 Taka<\/td>\nV\u1ecf gi\u1ed1ng nhau, c\u01a1 ch\u1ebf gi\u1ed1ng nhau, hi\u1ec7u chu\u1ea9n kh\u00e1c nhau<\/td>\n<\/tr>\n
MCB 32 A \u0111\u1ebfn 63 A<\/td>\nT\u0103ng g\u1ea5p \u0111\u00f4i<\/td>\nV\u1ecf l\u1edbn h\u01a1n, ti\u1ebfp \u0111i\u1ec3m n\u1eb7ng h\u01a1n, l\u1edbp 10 kA<\/td>\n<\/tr>\n
MCB 63 A \u0111\u1ebfn 125 A<\/td>\nT\u0103ng g\u1ea5p ba l\u1ea7n<\/td>\nKhung kh\u00e1c, ch\u1ee7 y\u1ebfu l\u00e0 ba c\u1ef1c<\/td>\n<\/tr>\n
MCCB 100 A \u0111\u1ebfn 250 A<\/td>\nG\u1ea5p ba l\u1ea7n<\/td>\nK\u00edch th\u01b0\u1edbc khung, kh\u1ea3 n\u0103ng ng\u1eaft, b\u1ed9 ph\u1eadn trip<\/td>\n<\/tr>\n
MCCB 250 A \u0111\u1ebfn 630 A<\/td>\nG\u1ea5p ba \u0111\u1ebfn b\u1ed1n l\u1ea7n<\/td>\nT\u00f9y ch\u1ecdn trip \u0111i\u1ec7n t\u1eed, k\u1ebft n\u1ed1i thanh c\u00e1i<\/td>\n<\/tr>\n
L\u1ee3i \u00edch v\u1ec1 gi\u00e1 c\u1ee7a b\u1ed9 ng\u1eaft 6 kA so v\u1edbi b\u1ed9 ng\u1eaft 10 kA<\/td>\n+30-50%<\/td>\nV\u1ecf cung n\u1eb7ng h\u01a1n, ti\u1ebfp \u0111i\u1ec3m l\u1edbn h\u01a1n<\/td>\n<\/tr>\n
L\u1ee3i \u00edch v\u1ec1 gi\u00e1 c\u1ee7a trip nhi\u1ec7t t\u1eeb so v\u1edbi trip \u0111i\u1ec7n t\u1eed<\/td>\nG\u1ea5p hai \u0111\u1ebfn ba l\u1ea7n<\/td>\nBi\u1ebfn d\u00f2ng, b\u1ed9 x\u1eed l\u00fd, \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf l\u00e0 b\u1ea3ng \u0111i\u1ec7n ch\u1ee9a nhi\u1ec1u m\u1ea1ch nh\u1ecf c\u00f3 gi\u00e1 th\u1ea5p h\u01a1n b\u1ea3ng \u0111i\u1ec7n ch\u1ee9a v\u00e0i m\u1ea1ch l\u1edbn. V\u00ed d\u1ee5 l\u00e0 chi ph\u00ed th\u1ea5p h\u01a1n c\u1ee7a b\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng 12 ng\u00f5 ch\u1ee9a c\u00e1c MCB so v\u1edbi chi ph\u00ed c\u1ee7a m\u1ed9t b\u1ed9 ng\u1eaft v\u1ecf \u0111\u00fac 250 A. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng khi chu\u1ea9n b\u1ecb v\u00e0 ph\u00e2n chia ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n. V\u00ed d\u1ee5 kh\u00e1c l\u00e0 b\u1ed9 ng\u1eaft v\u1ecf \u0111\u00fac \u1edf \u0111\u1ea7u tr\u00ean c\u1ee7a thang \u0111o, c\u00f3 kh\u1ea3 n\u0103ng bao ph\u1ee7 ph\u1ea1m vi 16-250 A tr\u00ean m\u1ed9t khung duy nh\u1ea5t v\u1edbi trip nhi\u1ec7t t\u1eeb \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c<\/a>, cho ph\u00e9p t\u1ea1o ra m\u1ed9t nh\u00e1nh ph\u1ee5 v\u1edbi l\u1ecbch tr\u00ecnh chi ph\u00ed h\u1ee3p l\u00fd so v\u1edbi danh s\u00e1ch nhi\u1ec1u thi\u1ebft b\u1ecb ri\u00eang l\u1ebb.<\/p>\n

T\u1ea1i sao b\u1ed9 ng\u1eaft AC v\u00e0 DC l\u1ea1i kh\u00e1c bi\u1ec7t nhi\u1ec1u v\u1ec1 gi\u00e1<\/h2>\n

Chi ph\u00ed c\u1ee7a b\u1ed9 ng\u1eaft DC so v\u1edbi b\u1ed9 ng\u1eaft AC cao h\u01a1n 30-60 Taka do h\u1ed3 quang.<\/p>\n

Trong m\u1ea1ch AC, c\u00f3 hai n\u1eeda chu k\u1ef3 ho\u1eb7c hai l\u1ea7n qua kh\u00f4ng trong m\u1ed7i chu k\u1ef3 ho\u00e0n ch\u1ec9nh, t\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111\u00f3 h\u1ed3 quang t\u1ef1 nhi\u00ean t\u1eaft; do \u0111\u00f3, h\u1ed3 quang ch\u1ec9 c\u1ea7n \u0111\u01b0\u1ee3c ng\u0103n kh\u00f4ng cho t\u00e1i ph\u00e1t b\u1edfi c\u1ea7u dao. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ea1ch DC kh\u00f4ng c\u00f3 \u0111i\u1ec3m qua kh\u00f4ng, v\u00ec v\u1eady h\u1ed3 quang ph\u1ea3i \u0111\u01b0\u1ee3c d\u1eadp t\u1eaft b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n b\u00ean ngo\u00e0i nh\u01b0 k\u00e9o d\u00e0i h\u1ed3 quang, l\u00e0m m\u00e1t h\u1ed3 quang v\u00e0 ph\u00e2n t\u00e1ch h\u1ed3 quang qua nhi\u1ec1u \u0111i\u1ec7n c\u1ef1c; do \u0111\u00f3, \u1ed1ng d\u1eadp h\u1ed3 quang cho m\u1ea1ch DC ph\u1ea3i l\u1edbn h\u01a1n, ph\u1ea3i c\u00f3 nhi\u1ec1u \u0111i\u1ec7n c\u1ef1c h\u01a1n v\u00e0 ph\u1ea3i s\u1eed d\u1ee5ng l\u1ef1c t\u1eeb m\u1ea1nh h\u01a1n \u0111\u1ec3 k\u00e9o c\u00e1c h\u1ed3 quang ra xa nhau, t\u1ea5t c\u1ea3 trong c\u00f9ng kh\u00f4ng gian v\u1edbi m\u1ea1ch AC.<\/p>\n

\u1ede Bangladesh, c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi cho ngu\u1ed3n DC \u0111\u00e3 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, v\u00e0 s\u1ef1 t\u0103ng gi\u00e1 cho c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 th\u1ea5y r\u00f5 trong gi\u00e1 c\u1ee7a c\u1ea7u dao DC. V\u00ed d\u1ee5, gi\u00e1 c\u1ee7a c\u1ea7u dao DC v\u1edbi d\u00f2ng \u0111\u1ecbnh m\u1ee9c 32 ampe d\u00f9ng trong b\u1ed9 k\u1ebft h\u1ee3p chu\u1ed7i dao \u0111\u1ed9ng t\u1eeb 1200 \u0111\u1ebfn 3000 BDT, trong khi c\u1ea7u dao t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ecbnh m\u1ee9c AC c\u00f3 gi\u00e1 t\u1eeb 400 \u0111\u1ebfn 900 BDT; do \u0111\u00f3, s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 gi\u00e1 l\u1ea1i do thi\u1ebft k\u1ebf c\u1ee7a c\u1ea7u dao \u0111\u1ecbnh m\u1ee9c DC.<\/p>\n

V\u1ec1 m\u1eb7t an to\u00e0n, C\u1ea7u dao \u0111\u1ecbnh m\u1ee9c DC kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ho\u1eb7c thay th\u1ebf b\u1eb1ng c\u1ea7u dao \u0111\u1ecbnh m\u1ee9c AC<\/span> v\u00ec ch\u00fang kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng d\u1eadp t\u1eaft h\u1ed3 quang v\u00e0 c\u00f3 th\u1ec3 b\u1ecb \u0111\u00f3ng kh\u00f4ng ch\u1ee7 \u00fd khi c\u1ea7u dao AC b\u1ecb h\u1ecfng. Th\u1eadt kh\u00f4ng may, vi\u1ec7c thay th\u1ebf c\u1ea7u dao AC b\u1eb1ng c\u1ea7u dao DC l\u00e0 th\u1ef1c h\u00e0nh ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi nh\u1ecf; do \u0111\u00f3 l\u00e0 l\u00fd do cho c\u00e1c k\u00fd hi\u1ec7u kh\u00e1c bi\u1ec7t r\u00f5 r\u00e0ng tr\u00ean c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh m\u1ee9c DC.<\/p>\n

C\u00e1c c\u1ea5p th\u01b0\u01a1ng hi\u1ec7u v\u00e0 nh\u1eefng g\u00ec m\u00e0 s\u1ea3n ph\u1ea9m cao c\u1ea5p mang l\u1ea1i<\/h2>\n

C\u00e1c th\u01b0\u01a1ng hi\u1ec7u ch\u00e2u \u00c2u cao c\u1ea5p cung c\u1ea5p cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng Bangladesh ba l\u1ee3i th\u1ebf c\u1ee5 th\u1ec3: h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng, ch\u1ee9ng nh\u1eadn c\u00f3 th\u1ec3 x\u00e1c minh qua c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, v\u00e0 t\u1ed3n kho s\u1eb5n c\u00f3. H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng r\u1ea5t quan tr\u1ecdng khi x\u1eed l\u00fd c\u00e1c s\u01a1 \u0111\u1ed3 b\u1ea3o v\u1ec7; trong khi \u0111\u00f3, ch\u1ee9ng nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1edfi c\u00e1c t\u01b0 v\u1ea5n vi\u00ean \u0111\u1ec3 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng; v\u00e0 t\u1ed3n kho \u0111\u01b0\u1ee3c duy tr\u00ec \u0111\u1ec3 gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 do c\u1ea7u dao b\u1ecb h\u1ecfng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c b\u1ec7nh vi\u1ec7n, n\u01a1i th\u1eddi gian d\u1ef1 ki\u1ebfn \u0111\u1ec3 giao c\u1ea7u dao thay th\u1ebf c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn ba tu\u1ea7n.<\/p>\n

M\u1eb7c d\u00f9 gi\u00e1 c\u1ee7a c\u00e1c th\u01b0\u01a1ng hi\u1ec7u Trung Qu\u1ed1c c\u1ea5p m\u1ed9t v\u00e0 l\u1eafp r\u00e1p \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 th\u1ec3 h\u1ea5p d\u1eabn h\u01a1n \u0111\u1ed1i v\u1edbi c\u01b0 d\u00e2n v\u00e0 c\u00e1c nh\u00e0 m\u00e1y nh\u1ecf, y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t khi ch\u1ecdn thi\u1ebft b\u1ecb l\u00e0 ph\u1ea3i ch\u1eafc ch\u1eafn r\u1eb1ng c\u00f3 ch\u1ee9ng nh\u1eadn h\u1ee3p l\u1ec7 v\u00e0 c\u00f3 th\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c. Thi\u1ebft b\u1ecb c\u0169ng ph\u1ea3i c\u00f3 ch\u1ee9ng ch\u1ec9 hi\u1ec7u chu\u1ea9n c\u00f3 th\u1ec3 x\u00e1c minh<\/strong> b\u1edfi v\u00ec c\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng h\u1ecfng h\u00f3c cao nh\u1ea5t, \u0111i\u1ec1u n\u00e0y t\u1ea1o ra nhu c\u1ea7u thay th\u1ebf nhanh c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch n\u1ebfu t\u1ea3i cu\u1ed1i c\u00f9ng v\u01b0\u1ee3t qu\u00e1 100 ampe. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, qu\u00e1 tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh li\u00ean quan \u0111\u1ebfn vi\u1ec7c cung c\u1ea5p b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n, ch\u1ee7 y\u1ebfu do s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c mua ri\u00eang l\u1ebb so v\u1edbi \u0111\u00f3ng g\u00f3i c\u00f9ng nhau.<\/p>\n

Gi\u1eefa nh\u00e0 m\u00e1y v\u00e0 k\u1ec7 b\u00e1n l\u1ebb, c\u00f3 ba chi ph\u00ed chi\u1ebfm ph\u1ea7n l\u1edbn s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa gi\u00e1 FOB v\u00e0 gi\u00e1 b\u00e1n l\u1ebb t\u1ea1i Dhaka.<\/p>\n

\"\"<\/p>\n

Nh\u1eefng g\u00ec Tu\u00e2n th\u1ee7 v\u00e0 Thu\u1ebf b\u1ed5 sung v\u00e0o Gi\u00e1<\/h2>\n

Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a \u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Qu\u1ed1c t\u1ebf (IEC) \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho Bangladesh s\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a Vi\u1ec7n Ti\u00eau chu\u1ea9n v\u00e0 Ki\u1ec3m \u0111\u1ecbnh Bangladesh (BSTI). BSTI ch\u1ee9ng nh\u1eadn c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ec3 cho ph\u00e9p ch\u00fang \u0111\u01b0\u1ee3c b\u00e1n t\u1ea1i Bangladesh; do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n IEC ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 tu\u00e2n th\u1ee7, b\u1ea5t k\u1ec3 nh\u00e3n hi\u1ec7u m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng, v\u00e0 gi\u1ea5y ch\u1ee9ng nh\u1eadn ki\u1ec3m tra \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 tu\u00e2n th\u1ee7.<\/p>\n

Thu\u1ebf nh\u1eadp kh\u1ea9u \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch thu\u1ed9c ph\u00e2n lo\u1ea1i H\u1ec7 th\u1ed1ng H\u00e0i h\u00f2a (HS) m\u00e3 HS 8536. T\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m thu\u1ebf nh\u1eadp kh\u1ea9u \u00e1p d\u1ee5ng cho c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch ph\u1ee5 thu\u1ed9c v\u00e0o ph\u00e2n lo\u1ea1i\/m\u1ee5c ph\u1ee5 HS c\u1ee5 th\u1ec3 c\u1ee7a ch\u00fang c\u0169ng nh\u01b0 vi\u1ec7c ng\u01b0\u1eddi nh\u1eadp kh\u1ea9u c\u00f3 \u0111\u01b0\u1ee3c \u01b0u \u0111\u00e3i nh\u1eadp kh\u1ea9u hay kh\u00f4ng v\u00e0 s\u1ebd dao \u0111\u1ed9ng kho\u1ea3ng t\u1eeb 10-25% gi\u00e1 tr\u1ecb h\u00f3a \u0111\u01a1n h\u1ea3i quan (CIF); do \u0111\u00f3, vi\u1ec7c x\u00e1c nh\u1eadn ph\u00e2n lo\u1ea1i\/m\u1ee5c ph\u1ee5 tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n l\u00e0 r\u1ea5t quan tr\u1ecdng, thay v\u00ec sau khi v\u1eadn chuy\u1ec3n.<\/p>\n

Thu\u1ebf VAT \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u00ean gi\u00e1 tr\u1ecb \u0111\u00e1nh gi\u00e1 15% tr\u00ean chi ph\u00ed s\u1ea3n ph\u1ea9m t\u1ea1i th\u1eddi \u0111i\u1ec3m nh\u1eadp kh\u1ea9u v\u00e0 m\u1ed9t l\u1ea7n n\u1eefa t\u1ea1i th\u1eddi \u0111i\u1ec3m b\u00e1n; con s\u1ed1 n\u00e0y gi\u1ea3i th\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 gi\u00e1 b\u00e1n l\u1ebb c\u1ee7a m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 gi\u00e1 1 tri\u1ec7u 6 tr\u0103m ngh\u00ecn; do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 gi\u00e1 1 tri\u1ec7u 6 tr\u0103m ngh\u00ecn s\u1ebd \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi gi\u00e1 tr\u00ean k\u1ec7 l\u00e0 BDT 1.100 (rupee)\/BDT 900 (rupee, t\u01b0\u01a1ng \u1ee9ng); VAT \u00e1p d\u1ee5ng \u0111\u1ed3ng \u0111\u1ec1u cho t\u1ea5t c\u1ea3 c\u00e1c th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n

C\u01b0\u1edbc v\u1eadn chuy\u1ec3n & th\u1ee7 t\u1ee5c h\u1ea3i quan chi\u1ebfm ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a s\u1ef1 kh\u00e1c bi\u1ec7t gi\u00e1 gi\u1eefa gi\u00e1 FOB v\u00e0 gi\u00e1 tr\u00ean k\u1ec7 t\u1ea1i Dhaka. Trong khi chi ph\u00ed tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb v\u1eadn chuy\u1ec3n trong m\u1ed9t container \u0111\u1ea7y \u0111\u1ee7 c\u00e1c B\u1ed9 ng\u1eaft m\u1ea1ch Miniature (MCB) th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi m\u1ed9t b\u1ed9 B\u1ed9 ng\u1eaft m\u1ea1ch V\u1ecf \u0111\u00fac (MCCB) v\u1eadn chuy\u1ec3n b\u1eb1ng \u0111\u01b0\u1eddng h\u00e0ng kh\u00f4ng, vi\u1ec7c thay th\u1ebf kh\u1ea9n c\u1ea5p m\u1ed9t MCCB t\u1eeb Bangladesh c\u00f3 chi ph\u00ed v\u1eadn chuy\u1ec3n cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00f9ng m\u1ed9t m\u1eb7t h\u00e0ng \u0111\u01b0\u1ee3c bao g\u1ed3m trong m\u1ed9t l\u00f4 h\u00e0ng d\u1ef1 \u00e1n.<\/p>\n

N\u01a1i m\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m gi\u00e1 r\u1ebb kh\u00f4ng hi\u1ec7u qu\u1ea3 b\u1eb1ng<\/h2>\n

Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t linh ki\u1ec7n \u0111i\u1ec7n c\u00f3 hi\u1ec7u qu\u1ea3 trong 20 n\u0103m so v\u1edbi m\u1ed9t linh ki\u1ec7n ch\u1ec9 hi\u1ec7u qu\u1ea3 trong ba n\u0103m \u0111\u1ebfn t\u1eeb b\u1ed1n l\u0129nh v\u1ef1c kh\u00e1c nhau m\u00e0 th\u01b0\u1eddng kh\u00f4ng th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn.<\/p>\n

Sai l\u1ec7ch hi\u1ec7u chu\u1ea9n.<\/strong> Khi m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch m\u1edbi, n\u00f3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u0111\u1ec3 ng\u1eaft \u1edf kho\u1ea3ng 1,6 l\u1ea7n c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c c\u1ee7a n\u00f3. Tuy nhi\u00ean, ch\u1ec9 sau v\u00e0i n\u0103m b\u1ecb chu tr\u00ecnh nhi\u1ec7t, m\u1ed9t CB ban \u0111\u1ea7u \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c ng\u1eaft \u1edf 1,6 hi\u1ec7n \u0111\u00e3 t\u1ef1 hi\u1ec7u chu\u1ea9n \u0111\u1ec3 ng\u1eaft \u1edf 2,2 l\u1ea7n c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c ban \u0111\u1ea7u c\u1ee7a n\u00f3<\/span>, \u0111\u1ec3 l\u1ea1i c\u00e1p m\u00e0 n\u00f3 b\u1ea3o v\u1ec7 kh\u00f4ng c\u00f3 s\u1ef1 b\u1ea3o v\u1ec7 th\u00edch h\u1ee3p. Vi\u1ec7c hi\u1ec7u chu\u1ea9n c\u1ee7a m\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi d\u1ea3i bimetal v\u00e0 v\u00edt \u0111i\u1ec1u ch\u1ec9nh. Qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n b\u1ecb lo\u1ea1i b\u1ecf v\u1edbi c\u00e1c thi\u1ebft b\u1ecb gi\u00e1 r\u1ebb \u0111\u1ec3 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p.<\/p>\n

M\u1ea1 ti\u1ebfp \u0111i\u1ec3m.<\/strong> B\u1ec1 m\u1eb7t ti\u1ebfp \u0111i\u1ec3m c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 b\u1ecb m\u00f2n do nhi\u1ec7t sinh ra t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac do di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac kh\u00f4ng \u0111\u1ee7 v\u00e0, trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, shunt kh\u00f4ng \u0111\u1ee7 (\u0111\u1ec3 t\u1ea3n nhi\u1ec7t). Nh\u00e2n vi\u00ean b\u1ea3o tr\u00ec th\u01b0\u1eddng ph\u00e1t hi\u1ec7n b\u1ec1 m\u1eb7t ti\u1ebfp \u0111i\u1ec3m qu\u00e1 nhi\u1ec7t b\u1eb1ng c\u00e1ch qu\u00e9t h\u1ed3ng ngo\u1ea1i sau khi b\u1ed9 ng\u1eaft \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao trong m\u1ed9t n\u0103m.<\/p>\n

Thi\u1ebft k\u1ebf khe h\u1ed3 quang.<\/strong> Khe h\u1ed3 quang qu\u00e1 ng\u1eafn v\u00e0 ch\u1ee9a qu\u00e1 \u00edt t\u1ea5m s\u1ebd ng\u0103n d\u00f2ng \u0111i\u1ec7n m\u1ed9t l\u1ea7n trong \u0111i\u1ec1u ki\u1ec7n l\u1ed7i; tuy nhi\u00ean, thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u1ee7 s\u1ebd kh\u00f4ng ng\u1eaft trong l\u1ea7n ng\u1eafn m\u1ea1ch \u0111\u1ea7u ti\u00ean tr\u00ean d\u00f2ng l\u1ed7i, v\u00e0 khe h\u1ed3 quang s\u1ebd th\u1ea5t b\u1ea1i l\u1ea7n n\u1eefa trong l\u1ea7n l\u1eb7p th\u1ee9 hai c\u1ee7a l\u1ed7i.<\/p>\n

M\u00f4-men xo\u1eafn \u0111\u1ea7u c\u1ed1t.<\/strong> B\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng th\u1ec3 si\u1ebft ch\u1eb7t \u0111\u00fang c\u00e1ch do l\u00e0m tr\u00f3c ren \u0111\u1ea7u c\u1ed1t \u1edf m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng an to\u00e0n khi l\u1eafp \u0111\u1eb7t trong b\u1ea3ng ph\u00e2n ph\u1ed1i. \u0110\u1ea7u c\u1ed1t l\u1ecfng l\u1ebbo l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ch\u00e1y trong b\u1ea3ng ph\u00e2n ph\u1ed1i.<\/span> H\u00e0nh vi c\u1ee7a nhi\u1ec1u b\u1ed9 ng\u1eaft m\u1ea1ch (MCB) v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac (MCCB)<\/a> v\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang \u0111\u01b0\u1ee3c x\u1eed l\u00fd kh\u00e1c nhau li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i \u0111\u1ea7u c\u1ed1t cao h\u01a1n \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn.<\/p>\n

T\u1ea1i \u0111i\u1ec3m \u0111\u00e1nh gi\u00e1 t\u1ea1i qu\u1ea7y, ch\u1ec9 c\u00f3 ba trong b\u1ed1n thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea c\u00f3 th\u1ec3 th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 ch\u1ea5p nh\u1eadn tr\u1ea3 l\u1ea1i v\u00e0 ch\u1ee9ng nh\u1eadn xu\u1ea5t x\u1ee9 c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng \u0111\u00e1nh d\u1ea5u l\u00f4 c\u1ee7a thi\u1ebft b\u1ecb n\u1ebfu n\u00f3 b\u1ecb l\u1ed7i. Do \u0111\u00f3, khi \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u1ea5p th\u01b0\u01a1ng hi\u1ec7u, \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 quy\u1ebft \u0111\u1ecbnh v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng m\u00e0 l\u00e0 \u0111\u00e1nh gi\u00e1 v\u1ec1 kh\u1ea3 n\u0103ng kh\u1eafc ph\u1ee5c c\u00f3 s\u1eb5n cho ng\u01b0\u1eddi mua.<\/p>\n

X\u00e2y d\u1ef1ng ng\u00e2n s\u00e1ch theo \u1ee9ng d\u1ee5ng<\/h2>\n

S\u1eed d\u1ee5ng m\u1ed9t \u1ee9ng d\u1ee5ng \u0111\u1ec3 t\u1ea1o ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n, ch\u00fang t\u00f4i \u0111\u00e3 cung c\u1ea5p \u01b0\u1edbc t\u00ednh ch\u1ec9 d\u1eabn cho c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n thi\u1ebft d\u1ef1a tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n\n\n\n\n\n\n
\u1ee8ng d\u1ee5ng<\/th>\nM\u1ea1ch \u0111\u01a1n pha d\u00f2ng cao<\/th>\nThi\u1ebft b\u1ecb<\/th>\nNg\u00e2n s\u00e1ch ch\u1ec9 d\u1eabn<\/th>\n<\/tr>\n<\/thead>\n
C\u0103n h\u1ed9 hai ph\u00f2ng ng\u1ee7<\/td>\n8 m\u1ea1ch<\/td>\n8-MCB 1-RCCB 1-c\u00f4ng t\u1eafc ch\u00ednh<\/td>\nBDT 12,000-30,000<\/td>\n<\/tr>\n
B\u00e1n l\u1ebb\/ V\u0103n ph\u00f2ng nh\u1ecf<\/td>\n12 m\u1ea1ch<\/td>\n12-MCB 2-RCBO 1-MCCB 100 A<\/td>\nBDT 25,000-60,000<\/td>\n<\/tr>\n
Nh\u00e0 m\u00e1y nh\u1ecf<\/td>\nD\u1ecbch v\u1ee5 200 A<\/td>\n1-MCCB 250 A 6-MCB 100 A 12-MCB<\/td>\nBDT 120,000-280,000<\/td>\n<\/tr>\n
N\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi tr\u00ean m\u00e1i<\/td>\n10 kW<\/td>\nB\u1ed9 c\u00e1ch ly DC, b\u1ed9 ng\u1eaft DC, b\u1ed9 ng\u1eaft AC, SPD<\/td>\nBDT 35,000-80,000<\/td>\n<\/tr>\n
B\u1ed9 c\u1ea5p ch\u00ednh c\u00f4ng nghi\u1ec7p<\/td>\n1600 A<\/td>\n1-ACB \u0111o l\u01b0\u1eddng & \u0111i\u1ec1u khi\u1ec3n<\/td>\nBDT 500,000-1,300,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Chi ph\u00ed tr\u00ean l\u00e0 chi ph\u00ed cho thi\u1ebft b\u1ecb ri\u00eang. \u0110\u1ec3 \u01b0\u1edbc t\u00ednh ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n cho thi\u1ebft b\u1ecb, ch\u00fang ta c\u1ea7n c\u1ed9ng th\u00eam t\u1eeb 60% \u0111\u1ebfn 150% v\u00e0o chi ph\u00ed tr\u00ean cho c\u00e1c kho\u1ea3n chi ph\u00ed li\u00ean quan \u0111\u1ebfn b\u1ea3ng, thanh c\u00e1i, v\u1ecf b\u1ea3o v\u1ec7, d\u00e2y \u0111i\u1ec7n v\u00e0 nh\u00e2n c\u00f4ng t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea3ng ho\u00e0n ch\u1ec9nh \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t trong n\u01b0\u1edbc hay nh\u1eadp kh\u1ea9u d\u01b0\u1edbi d\u1ea1ng b\u1ed9 ho\u00e0n ch\u1ec9nh. Do \u0111\u00f3, ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n ch\u1ec9 bao g\u1ed3m thi\u1ebft b\u1ecb th\u01b0\u1eddng kh\u00f4ng ch\u00ednh x\u00e1c khi b\u1ea3ng \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.<\/p>\n

V\u1ecb tr\u00ed s\u1ea3n ph\u1ea9m HUYU tr\u00ean th\u1ecb tr\u01b0\u1eddng<\/h2>\n

Ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t b\u1ed9 ng\u1eaft m\u1ea1ch mini (MCB), c\u1ea7u dao t\u1ef1 \u0111\u1ed9ng v\u1ecf \u0111\u00fac (MCCB) t\u1eeb 1 A-1600 A<\/a> theo y\u00eau c\u1ea7u c\u1ee7a IEC 60898-1, IEC 60947-2 & UL 489 cho c\u00e1c khu v\u1ef1c y\u00eau c\u1ea7u MCB v\u00e0 MCCB \u0111\u1ea1t chu\u1ea9n UL. Gi\u00e1 c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb trong nh\u00f3m h\u00e0ng \u0111\u1ea7u Trung Qu\u1ed1c t\u1ea1i Bangladesh, ho\u1eb7c kho\u1ea3ng m\u1ed9t ph\u1ea7n ba so v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u ch\u00e2u \u00c2u v\u00e0 th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi m\u1ed9t ph\u1ea7n n\u0103m gi\u00e1 c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n

S\u1ef1 k\u1ebf th\u1eeba c\u1ee7a c\u00e1c c\u1ea7u dao t\u1ef1 \u0111\u1ed9ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i r\u1ed9ng r\u00e3i d\u1ef1a tr\u00ean \u01b0u ti\u00ean \u0111\u1ecba ph\u01b0\u01a1ng \/ qu\u1ed1c gia v\u00e0 chi ph\u00ed sinh ho\u1ea1t ho\u1eb7c chi ph\u00ed l\u00e0m vi\u1ec7c trung b\u00ecnh nh\u01b0 th\u1ebf n\u00e0o. \u1ede m\u1ed9t s\u1ed1 khu v\u1ef1c c\u1ee7a Bangladesh, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y MCB v\u1edbi gi\u00e1 kh\u1edfi \u0111i\u1ec3m l\u00e0 BDT 250. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t so s\u00e1nh c\u00f4ng b\u1eb1ng v\u00ec \u1edf h\u1ea7u h\u1ebft c\u00e1c khu v\u1ef1c, gi\u00e1 c\u00f3 th\u1ec3 c\u00f3 t\u1ed1i \u0111a n\u0103m m\u1ee9c gi\u00e1 kh\u00e1c nhau gi\u1eefa c\u00e1c th\u01b0\u01a1ng hi\u1ec7u ho\u1eb7c nh\u00e0 cung c\u1ea5p kh\u00e1c nhau.<\/p>\n

M\u1ee9c gi\u00e1 t\u1ed1i thi\u1ec3u c\u1ee7a m\u1ed9t MCB th\u01b0\u1eddng kho\u1ea3ng BDT 250 cho c\u00e1c thi\u1ebft k\u1ebf thu nh\u1ecf (c\u00f3 c\u1ea3 hai m\u1ee9c \u0111\u1ecbnh m\u1ee9c 6 & 32 A) c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn BDT 900 cho c\u00e1c m\u1eabu l\u1edbn h\u01a1n 63 A (lo\u1ea1i A)<\/a>. H\u1ea7u h\u1ebft c\u00e1c MCB s\u1ebd \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi gi\u00e1 th\u1ea5p h\u01a1n kho\u1ea3ng 40% \u0111\u1ebfn 50% so v\u1edbi gi\u00e1 c\u1ee7a c\u1ea7u dao AC c\u00f3 gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p>\n

C\u00e1c ghi ch\u00fa b\u1ed5 sung bao g\u1ed3m:<\/p>\n

Do k\u00edch th\u01b0\u1edbc c\u1ee7a Bangladesh v\u00e0 th\u1eddi gian ph\u00e1t tri\u1ec3n l\u00e2u d\u00e0i so v\u1edbi c\u00e1c qu\u1ed1c gia ch\u00e2u \u00c1 kh\u00e1c, b\u1ea1n s\u1ebd kh\u00f4ng t\u00ecm th\u1ea5y t\u1ea5t c\u1ea3 c\u00e1c c\u1eeda h\u00e0ng b\u00e1n l\u1ebb \u1edf m\u1ecdi khu v\u1ef1c cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m. V\u00ed d\u1ee5, \u1edf c\u00e1c khu v\u1ef1c \u0111\u00f4 th\u1ecb l\u1edbn, nh\u01b0 Dhaka, b\u1ea1n s\u1ebd mong \u0111\u1ee3i th\u1ea5y nhi\u1ec1u s\u1ef1 \u0111a d\u1ea1ng h\u01a1n so v\u1edbi c\u00e1c th\u1ecb tr\u01b0\u1eddng n\u00f4ng th\u00f4n, n\u01a1i h\u1ea7u h\u1ebft c\u00e1c th\u01b0\u01a1ng hi\u1ec7u MCB c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u01b0\u1ee3c cung c\u1ea5p v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3.<\/p>\n

Ba l\u00fd do cho s\u1ef1 bi\u1ebfn \u0111\u1ed9ng gi\u00e1 n\u00e0y nh\u01b0 sau:<\/p>\n

    \n
  1. Ngu\u1ed3n cung s\u1ea3n ph\u1ea9m \u0111\u1ecba ph\u01b0\u01a1ng<\/li>\n
  2. Kh\u1ed1i l\u01b0\u1ee3ng h\u00e0ng t\u1ed3n kho \u0111\u1eb7t h\u00e0ng<\/li>\n
  3. S\u1ef1 kh\u00e1c bi\u1ec7t trong ho\u1ea1t \u0111\u1ed9ng kinh doanh<\/li>\n<\/ol>\n

    C\u0169ng c\u1ea7n nh\u1edb r\u1eb1ng c\u1ea7u dao t\u1ef1 \u0111\u1ed9ng \u1edf Bangladesh c\u00f3 chi ph\u00ed hi\u1ec7u qu\u1ea3 h\u01a1n so v\u1edbi nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u ch\u00e2u \u00c2u. L\u00fd do ch\u00ednh \u0111\u1eb1ng sau \u0111i\u1ec1u n\u00e0y l\u00e0 do giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n m\u00e0 ch\u00e2u \u00c2u \u0111ang \u1edf, li\u00ean quan \u0111\u1ebfn m\u00f4 h\u00ecnh gi\u00e1 c\u1ee7a c\u1ea7u dao MCB so v\u1edbi Bangladesh. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u1ea7u dao AC v\u1edbi m\u1ee9c gi\u00e1 trung b\u00ecnh kho\u1ea3ng BDT 400,000 (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng kho\u1ea3ng \u00a3100) trong khi b\u1ea1n s\u1ebd ph\u1ea3i tr\u1ea3 h\u01a1n \u00a31000-\u00a32500 \u1edf ch\u00e2u \u00c2u (t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc, lo\u1ea1i, nh\u00e0 s\u1ea3n xu\u1ea5t).<\/p>\n

    Thi\u1ebft b\u1ecb nh\u1eadp kh\u1ea9u x\u00e1m c\u00f3 th\u1ec3 kh\u00f4ng \u0111i k\u00e8m v\u1edbi b\u1ea3o h\u00e0nh ho\u1eb7c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt t\u1eeb nh\u00e0 ph\u00e2n ph\u1ed1i \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n, tuy nhi\u00ean n\u00f3 v\u1eabn s\u1ebd ho\u1ea1t \u0111\u1ed9ng khi mua. Thi\u1ebft b\u1ecb nh\u1eadp kh\u1ea9u x\u00e1m c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1n m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 x\u00e1c nh\u1eadn c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn, v\u00ec nhi\u1ec1u thi\u1ebft b\u1ecb s\u1ebd \u0111i k\u00e8m v\u1edbi b\u1ea3n sao ch\u1ee9ng nh\u1eadn g\u1ed1c \u0111\u1ec3 x\u00e1c th\u1ef1c \u2013 nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng b\u1ecf qua b\u01b0\u1edbc hi\u1ec7u chu\u1ea9n \u0111\u00fang c\u00e1ch. Phi\u00ean b\u1ea3n ch\u00ednh h\u00e3ng c\u0169ng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i, nh\u01b0ng th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn s\u1ea3n ph\u1ea9m ban \u0111\u1ea7u \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb l\u00f4 h\u00e0ng c\u0169 h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t hi\u1ec7n t\u1ea1i. Ch\u1ec9 hai l\u1ef1a ch\u1ecdn \u0111\u1ea7u ti\u00ean \u1edf tr\u00ean m\u1edbi c\u00f3 th\u1ec3 mang l\u1ea1i ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng, trong khi c\u1ea3 hai l\u1ef1a ch\u1ecdn \u0111\u1ec1u \u0111\u1ec3 l\u1ea1i r\u1ee7i ro cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng li\u00ean quan \u0111\u1ebfn c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m n\u00e0y.<\/p>\n

    C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

    T\u00f4i c\u00f3 c\u1ea7n s\u1eed d\u1ee5ng c\u1ea7u dao DC cho h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi c\u1ee7a m\u00ecnh \u1edf Bangladesh kh\u00f4ng?<\/h3>\n

    Theo Quy chu\u1ea9n \u0110i\u1ec7n Qu\u1ed1c gia Bangladesh (NEC), b\u1ea1n ph\u1ea3i l\u1eafp \u0111\u1eb7t m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch DC \u1edf ph\u00eda DC c\u1ee7a h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi c\u1ee7a b\u1ea1n. B\u1ed9 ng\u1eaft m\u1ea1ch DC \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 d\u1eadp t\u1eaft h\u1ed3 quang DC v\u00e0 do \u0111\u00f3 s\u1eed d\u1ee5ng m\u1ed9t \u1ed1ng d\u1eadp h\u1ed3 quang d\u00e0i h\u01a1n so v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch AC t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ec3 th\u00e0nh c\u00f4ng d\u1eadp t\u1eaft h\u1ed3 quang kh\u00f4ng c\u00f3 \u0111i\u1ec3m giao nhau b\u1eb1ng kh\u00f4ng, b\u00ean c\u1ea1nh vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c t\u1ea5m v\u00e0 b\u1ed9 ph\u1eadn b\u1ed5 sung b\u00ean trong b\u1ed9 ng\u1eaft. Do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch AC \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c \u0111\u1ec3 x\u1eed l\u00fd c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng d\u00f2ng \u0111i\u1ec7n s\u1ebd kh\u00f4ng th\u1ec3 d\u1eadp t\u1eaft s\u1ef1 c\u1ed1 DC m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 th\u1ec3 b\u1ecb k\u1eb9t \u1edf v\u1ecb tr\u00ed \u0111\u00f3ng.<\/p>\n

    Lo\u1ea1i ch\u1ee9ng nh\u1eadn n\u00e0o m\u00e0 m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch n\u00ean c\u00f3 \u1edf Bangladesh?<\/h3>\n

    T\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch tr\u00ean th\u1ecb tr\u01b0\u1eddng Bangladesh n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u00e0 ch\u1ee9ng nh\u1eadn theo c\u00e1c ti\u00eau chu\u1ea9n IEC ph\u00f9 h\u1ee3p. \u0110\u1ed1i v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf, ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng l\u00e0 IEC 60898-1; trong khi \u0111\u1ed1i v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac, ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p l\u00e0 IEC 60947-2. Gi\u1ea5y ch\u1ee9ng nh\u1eadn cho b\u1ed9 ng\u1eaft m\u1ea1ch c\u1ee7a b\u1ea1n n\u00ean ghi r\u00f5 t\u00ean m\u1eabu v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c nh\u01b0 tr\u00ean b\u1ed9 ng\u1eaft m\u1ea1ch. C\u1ee5c Ti\u00eau chu\u1ea9n v\u00e0 Th\u00f4ng tin K\u1ef9 thu\u1eadt c\u00f3 m\u1ed9t s\u1ed1 t\u1ed5 ch\u1ee9c \u0111\u1ecba ph\u01b0\u01a1ng ch\u1ee9ng nh\u1eadn s\u1ea3n ph\u1ea9m \u0111\u1ec3 b\u00e1n t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng. Khi \u0111\u1ea5u th\u1ea7u c\u00e1c d\u1ef1 \u00e1n th\u01b0\u01a1ng m\u1ea1i, b\u1ea1n n\u00ean \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u cung c\u1ea5p b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m v\u00e0 d\u1ea5u l\u00f4 c\u00f9ng v\u1edbi gi\u1ea5y ch\u1ee9ng nh\u1eadn b\u1ed9 ng\u1eaft m\u1ea1ch c\u1ee7a b\u1ea1n.<\/p>\n

    T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n