{"id":1,"date":"2025-10-13T05:12:06","date_gmt":"2025-10-13T05:12:06","guid":{"rendered":"https:\/\/tokeep.net\/?p=1"},"modified":"2026-01-06T00:08:09","modified_gmt":"2026-01-06T05:08:09","slug":"chon-cac-thiet-bi-bao-ve-dien-ap-chat-luong-cao","status":"publish","type":"post","link":"https:\/\/tokeep.net\/vi\/chon-cac-thiet-bi-bao-ve-dien-ap-chat-luong-cao\/","title":{"rendered":"Ch\u1ecdn c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u00e1p ch\u1ea5t l\u01b0\u1ee3ng cao"},"content":{"rendered":"
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Ch\u1ecdn c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u00e1p ch\u1ea5t l\u01b0\u1ee3ng cao<\/figcaption>\r\n<\/figure>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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T\u00f3m t\u1eaft:\u00a0Ch\u1ecdn c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u00e1p ch\u1ea5t l\u01b0\u1ee3ng cao<\/a><\/p>\r\n

T\u1eeb kh\u00f3a: thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i ba pha b\u1ed1n d\u00e2y, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i 4P, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p<\/a>, Th\u1eed nghi\u1ec7m EMC\u00a0<\/p>\r\n

\u00a0 B\u1ed9 b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m m\u1edbi xu\u1ea5t hi\u1ec7n trong hai n\u0103m qua. \u0110\u00e2y ch\u1ee7 y\u1ebfu l\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 nh\u1eb1m b\u1ea3o v\u1ec7 c\u00e1c \u0111\u01b0\u1eddng d\u00e2y ph\u00e2n ph\u1ed1i kh\u1ecfi t\u00ecnh tr\u1ea1ng qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p; thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng ng\u1eaft k\u1ebft n\u1ed1i khi x\u1ea3y ra qu\u00e1 \u00e1p ho\u1eb7c thi\u1ebfu \u00e1p, v\u00e0 t\u1ef1 \u0111\u1ed9ng b\u1eadt l\u1ea1i khi \u0111i\u1ec7n \u00e1p tr\u1edf v\u1ec1 m\u1ee9c b\u00ecnh th\u01b0\u1eddng.\u00a0<\/p>\r\n

\u00a0 Do c\u00f3 r\u1ea5t nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i, n\u00ean gi\u00e1 c\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1ea5t \u0111a d\u1ea1ng, khi\u1ebfn kh\u00e1ch h\u00e0ng kh\u00f3 l\u1ef1a ch\u1ecdn. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c m\u1ed9t s\u1ea3n ph\u1ea9m thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i v\u1edbi gi\u00e1 c\u1ea3 h\u1ee3p l\u00fd?\u00a0<\/p>\r\n

\u00a0Tr\u01b0\u1edbc ti\u00ean, h\u00e3y t\u00ecm hi\u1ec3u c\u1ea5u t\u1ea1o c\u1ee7a thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i. C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i bao g\u1ed3m: v\u1ecf m\u00e1y, b\u1ea3ng m\u1ea1ch \u0111i\u1ec7n t\u1eed, r\u01a1le, thi\u1ebft b\u1ecb n\u1ed1i d\u00e2y v\u00e0 d\u00e2y ch\u1ed5i d\u1eabn \u0111i\u1ec7n. Sau khi n\u1eafm r\u00f5 c\u1ea5u t\u1ea1o c\u1ee7a s\u1ea3n ph\u1ea9m, vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p s\u1ebd tr\u1edf n\u00ean t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 d\u00e0ng. Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 qua c\u00e1c kh\u00eda c\u1ea1nh sau:\u00a0<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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1. Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u00e1p cho v\u1ecf<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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H\u00e3y ki\u1ec3m tra xem s\u1ea3n ph\u1ea9m c\u00f3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ch\u1ed1ng ch\u00e1y hay kh\u00f4ng, v\u00e0 ch\u1ea5t li\u1ec7u v\u1ecf ngo\u00e0i c\u00f3 t\u1ed1t kh\u00f4ng. N\u1ebfu l\u00e0 v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf, b\u1ec1 m\u1eb7t s\u1ebd t\u01b0\u01a1ng \u0111\u1ed1i th\u00f4 r\u00e1p v\u00e0 m\u00e0u s\u1eafc c\u0169ng t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1i. V\u1ecf ngo\u00e0i c\u1ee7a s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb v\u1eadt li\u1ec7u m\u1edbi, c\u00e1c ch\u1eef tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c kh\u1eafc b\u1eb1ng laser v\u00e0 kh\u00f4ng th\u1ec3 x\u00f3a \u0111\u01b0\u1ee3c. Nh\u1eefng s\u1ea3n ph\u1ea9m nh\u01b0 v\u1eady th\u01b0\u1eddng c\u00f3 tay ngh\u1ec1 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t h\u01a1n.\u00a0<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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2. B\u1ea3ng m\u1ea1ch \u0111i\u1ec7n t\u1eed l\u00e0 b\u1ed9 ph\u1eadn quan tr\u1ecdng nh\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 t\u1ef1 ph\u1ee5c h\u1ed3i khi qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p, do \u0111\u00f3 vi\u1ec7c ki\u1ec3m tra ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch nghi\u00eam t\u00fac. B\u1ea3ng m\u1ea1ch \u0111i\u1ec7n t\u1eed c\u1ea7n ph\u1ea3i tr\u1ea3i qua c\u00e1c b\u00e0i ki\u1ec3m tra sau:\u00a0<\/h3>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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\u0110\u1ed1i v\u1edbi th\u1eed nghi\u1ec7m t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC), \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m xung n\u1eb1m trong kho\u1ea3ng t\u1eeb 100MHz \u0111\u1ebfn 1000MHz, v\u1edbi kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c xung l\u00e0 20 xung. \u0110i\u1ec7n \u00e1p xung tho\u00e1ng qua nhanh l\u00e0 4000V, t\u1ea7n s\u1ed1 xung l\u00e0 5kHz, th\u1eddi gian k\u00e9o d\u00e0i l\u00e0 15ms v\u00e0 chu k\u1ef3 l\u00e0 300ms. Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 s\u1ebd kh\u00f4ng b\u1ecb tr\u1ee5c tr\u1eb7c, \u0111i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m th\u1ef1c s\u1ef1 t\u1ed1t. (T\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a c\u00f4ng ty ch\u00fang t\u00f4i \u0111\u1ec1u \u0111\u00e3 v\u01b0\u1ee3t qua b\u00e0i ki\u1ec3m tra. V\u00e0o th\u00e1ng 10 n\u0103m 2018, c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u00e3 \u0111\u1ea1t ch\u1ee9ng nh\u1eadn s\u1ea3n ph\u1ea9m CQC qu\u1ed1c gia cho d\u1ea3i \u0111i\u1ec7n \u00e1p t\u1eeb AC380V \u0111\u1ebfn AC450V. M\u1ed9t tu\u1ea7n sau \u0111\u00f3, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i \u0111\u00e3 tr\u1edf l\u1ea1i \u0111i\u1ec7n \u00e1p b\u00ecnh th\u01b0\u1eddng. N\u1ebfu thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y s\u1ea3n ph\u1ea9m l\u00e0 s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng qu\u00e1 \u00e1p xu\u1ea5t s\u1eafc. Th\u1eed nghi\u1ec7m n\u00e0y c\u0169ng ph\u1ea3n \u00e1nh hi\u1ec7u su\u1ea5t c\u1ee7a to\u00e0n b\u1ed9 s\u1ea3n ph\u1ea9m. N\u1ebfu s\u1ea3n ph\u1ea9m n\u00e0y c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng do ch\u00ednh qu\u00e1 \u00e1p, th\u00ec vi\u1ec7c l\u1eafp \u0111\u1eb7t s\u1ea3n ph\u1ea9m n\u00e0y s\u1ebd m\u1ea5t \u0111i \u00fd ngh\u0129a. Hi\u1ec7n nay, c\u00e1c s\u1ea3n ph\u1ea9m gi\u00e1 r\u1ebb tr\u00ean th\u1ecb tr\u01b0\u1eddng kh\u00f4ng th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m n\u00e0y. Do \u0111\u00f3, vi\u1ec7c th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ch\u00e1y l\u00e0 r\u1ea5t quan tr\u1ecdng khi ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m n\u00e0y \u0111\u1ec3 tr\u00e1nh nh\u1eefng t\u1ed5n th\u1ea5t kh\u00f4ng \u0111\u00e1ng c\u00f3 do s\u1ea3n ph\u1ea9m b\u1ecb l\u1ed7i g\u00e2y ra. H\u00e3y nh\u1edb!)\u00a0<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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3. Ph\u00e1t hi\u1ec7n r\u01a1le\u00a0<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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Th\u00f4ng th\u01b0\u1eddng, h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u s\u1eed d\u1ee5ng r\u01a1le \u0111i\u1ec7n t\u1eeb cho d\u00f2ng \u0111i\u1ec7n nh\u1ecf v\u00e0 r\u01a1le kh\u00f3a t\u1eeb cho d\u00f2ng \u0111i\u1ec7n l\u1edbn. \u0110i\u1ec1u n\u00e0y l\u00e0 hi\u1ec3n nhi\u00ean v\u00e0 c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y khi th\u00e1o v\u1ecf s\u1ea3n ph\u1ea9m. N\u00ean s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 r\u01a1le kh\u00f3a t\u1eeb, v\u00ec ch\u00fang mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ed1t tr\u01b0\u1edbc d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng.<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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4. Ki\u1ec3m tra d\u00e2y d\u1eabn c\u00f3 \u0111i\u1ec7n\u00a0<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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C\u00e1ch n\u00e0y tr\u1ef1c quan h\u01a1n. H\u00e3y m\u1edf s\u1ea3n ph\u1ea9m ra v\u00e0 ki\u1ec3m tra xem d\u00e2y c\u00f3 ph\u1ea3i l\u00e0 d\u00e2y \u0111\u1ed3ng kh\u00f4ng, c\u0169ng nh\u01b0 k\u00edch th\u01b0\u1edbc c\u1ee7a d\u00e2y.\u00a0<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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5. Ph\u00e1t hi\u1ec7n nhi\u1ec5u h\u00e0i\u00a0<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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N\u1ebfu s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m th\u00f4ng th\u01b0\u1eddng v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, ch\u00fang c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng theo t\u1eebng l\u00f4, ch\u1ee7 y\u1ebfu th\u1ec3 hi\u1ec7n qua hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e8n b\u00e1o tr\u00ean s\u1ea3n ph\u1ea9m d\u1ea7n m\u1edd \u0111i. \u0110\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng s\u1ea3n ph\u1ea9m k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng, v\u00e0 hi\u1ec7n t\u1ea1i ch\u01b0a c\u00f3 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra hi\u1ec7u qu\u1ea3 n\u00e0o cho t\u00ecnh hu\u1ed1ng n\u00e0y. Kh\u00e1ch h\u00e0ng ch\u1ec9 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra v\u1ea5n \u0111\u1ec1 sau khi \u0111\u00e3 s\u1eed d\u1ee5ng s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, nh\u01b0ng c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean chuy\u00ean nghi\u1ec7p c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch th\u00e1o r\u1eddi s\u1ea3n ph\u1ea9m (hi\u1ec7n t\u1ea1i, c\u00e1c s\u1ea3n ph\u1ea9m kinh t\u1ebf v\u00e0 ti\u00eau chu\u1ea9n c\u1ee7a c\u00f4ng ty ch\u00fang t\u00f4i s\u1ebd kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng).<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

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6. Th\u1eed nghi\u1ec7m m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng c\u1ee7a to\u00e0n b\u1ed9 s\u1ea3n ph\u1ea9m\u00a0<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n
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\u00a0 \u00a0N\u1ebfu c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 c\u1ee7a r\u01a1le \u0111i\u1ec7n t\u1eeb l\u00e0 kho\u1ea3ng 1,5W, c\u00f2n c\u1ee7a r\u01a1le gi\u1eef t\u1eeb l\u00e0 kho\u1ea3ng 0,8W, v\u00e0 \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m l\u00e0 AC230V (thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i m\u1ed9t pha), th\u00ec n\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi c\u00f3 \u0111i\u1ec1u ki\u1ec7n kinh t\u1ebf, b\u1ea1n n\u00ean ch\u1ecdn lo\u1ea1i r\u01a1le \u0111i\u1ec7n t\u1eeb; ng\u01b0\u1ee3c l\u1ea1i, b\u1ea1n n\u00ean ch\u1ecdn lo\u1ea1i r\u01a1le gi\u1eef t\u1eeb cho thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i.<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"

T\u1eeb kh\u00f3a: thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i ba pha b\u1ed1n d\u00e2y, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i 4P, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebfu \u00e1p t\u1ef1 ph\u1ee5c h\u1ed3i, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p, th\u1eed nghi\u1ec7m EMC\u00a0<\/p>","protected":false},"author":1,"featured_media":7075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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