{"id":21411,"date":"2026-01-24T22:44:16","date_gmt":"2026-01-24T14:44:16","guid":{"rendered":"https:\/\/viox.com\/?p=21411"},"modified":"2026-01-24T22:46:38","modified_gmt":"2026-01-24T14:46:38","slug":"from-c1-c5-and-cx-the-corrosion-resistance-grade-and-design-lifespan-of-metal-parts","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/from-c1-c5-and-cx-the-corrosion-resistance-grade-and-design-lifespan-of-metal-parts\/","title":{"rendered":"T\u1eeb C1-C5 v\u00e0 CX: C\u1ea5p \u0111\u1ed9 Ch\u1ed1ng \u0102n M\u00f2n v\u00e0 Tu\u1ed5i Th\u1ecd Thi\u1ebft K\u1ebf c\u1ee7a C\u00e1c B\u1ed9 Ph\u1eadn Kim Lo\u1ea1i"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Close-up-of-a-rusted-electrical-cabinet-enclosure-showing-orange-corrosion-and-peeling-paint-after-3-4-years-of-coastal-C4-exposure.webp\" alt=\"Close up of a rusted electrical cabinet enclosure showing orange corrosion and peeling paint after 3-4 years of coastal C4 exposure\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 1: T\u00e1c \u0111\u1ed9ng c\u1ee7a \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng \u2014 m\u1ed9t t\u1ee7 \u0111i\u1ec7n b\u1ecb g\u1ec9 s\u00e9t cho th\u1ea5y l\u1edbp ph\u1ee7 b\u1ecb h\u1ecfng sau 3-4 n\u0103m trong khu v\u1ef1c ven bi\u1ec3n C4.<\/figcaption><\/figure>\n<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>C\u00e1c th\u00e0nh ph\u1ea7n kim lo\u1ea1i trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u0111ang b\u1ecb bao v\u00e2y. \u0110\u1ed9 \u1ea9m len l\u1ecfi v\u00e0o. S\u01b0\u01a1ng mu\u1ed1i \u0103n m\u00f2n. M\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh xu\u1ed1ng c\u1ea5p. N\u1ebfu kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 th\u00edch h\u1ee3p, s\u1ef1 \u0103n m\u00f2n s\u1ebd bi\u1ebfn thi\u1ebft b\u1ecb \u0111\u00e1ng tin c\u1eady th\u00e0nh nh\u1eefng h\u1ecfng h\u00f3c t\u1ed1n k\u00e9m. \u0110\u00e2y l\u00e0 l\u00fac ISO 12944 ra \u0111\u1eddi\u2014ti\u00eau chu\u1ea9n to\u00e0n c\u1ea7u chuy\u1ec3n \u0111\u1ed5i m\u1ee9c \u0111\u1ed9 kh\u1eafc nghi\u1ec7t c\u1ee7a m\u00f4i tr\u01b0\u1eddng th\u00e0nh c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf kh\u1ea3 thi cho h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7.<\/p>\n<p>ISO 12944 ho\u1ea1t \u0111\u1ed9ng tr\u00ean hai tr\u1ee5c. Tr\u1ee5c th\u1ee9 nh\u1ea5t x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 kh\u1eafc nghi\u1ec7t th\u1ef1c s\u1ef1 c\u1ee7a m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n\u2014t\u1eeb v\u0103n ph\u00f2ng c\u00f3 ki\u1ec3m so\u00e1t kh\u00ed h\u1eadu (C1) \u0111\u1ebfn c\u00e1c gi\u00e0n khoan ngo\u00e0i kh\u01a1i kh\u1eafc nghi\u1ec7t (CX). Tr\u1ee5c th\u1ee9 hai \u0111\u1eb7t ra m\u1ed1c th\u1eddi gian b\u1ea3o tr\u00ec c\u1ee7a b\u1ea1n: t\u1eeb vi\u1ec7c s\u1eeda ch\u1eefa nh\u1ecf t\u1ed1n k\u00e9m sau m\u1ed7i 7 n\u0103m \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1nh m\u1ebd k\u00e9o d\u00e0i h\u01a1n 25 n\u0103m. Hi\u1ec3u \u0111\u01b0\u1ee3c khu\u00f4n kh\u1ed5 n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho c\u00e1c k\u1ef9 s\u01b0 ch\u1ec9 \u0111\u1ecbnh <strong>k\u1ebft c\u1ea5u th\u00e9p, th\u00e2n v\u1ecf t\u1ee7 \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng h\u1ed7 tr\u1ee3 k\u1ebft c\u1ea5u<\/strong>. N\u00f3 \u0111\u1ecbnh h\u00ecnh tr\u1ef1c ti\u1ebfp vi\u1ec7c mua s\u1eafm, ng\u00e2n s\u00e1ch b\u1ea3o tr\u00ec v\u00e0 tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i m\u00e3 ISO 12944 th\u00e0nh ng\u00f4n ng\u1eef th\u1ef1c t\u1ebf v\u00e0 k\u1ebft n\u1ed1i ti\u00eau chu\u1ea9n v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p th\u1ef1c t\u1ebf.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-matrix-diagram-showing-ISO-12944-corrosivity-categories-C1-C2-C3-C4-C5-CX-on-the-vertical-axis-and-durability-tiers-L-M-H-VH-on-the-horizontal-axis.webp\" alt=\"Technical matrix diagram showing ISO 12944 corrosivity categories C1-CX and durability tiers L-VH\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 2: Ma tr\u1eadn l\u1ef1a ch\u1ecdn ISO 12944 \u2014 T\u01b0\u01a1ng quan gi\u1eefa c\u00e1c lo\u1ea1i \u0103n m\u00f2n (D\u1ecdc) v\u1edbi k\u1ef3 v\u1ecdng v\u1ec1 \u0111\u1ed9 b\u1ec1n (Ngang).<\/figcaption><\/figure>\n<hr \/>\n<h2>ISO 12944 l\u00e0 g\u00ec?<\/h2>\n<p>ISO 12944 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u1ec1 <strong>b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n cho k\u1ebft c\u1ea5u th\u00e9p b\u1eb1ng h\u1ec7 th\u1ed1ng s\u01a1n b\u1ea3o v\u1ec7<\/strong>. N\u00f3 \u00e1p d\u1ee5ng c\u1ee5 th\u1ec3 cho <strong>c\u00e1c th\u00e0nh ph\u1ea7n th\u00e9p k\u1ebft c\u1ea5u v\u00e0 th\u00e2n v\u1ecf t\u1ee7 \u0111i\u1ec7n b\u1eb1ng th\u00e9p<\/strong> ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u00ed quy\u1ec3n. \u0110\u01b0\u1ee3c ph\u00e1t h\u00e0nh l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1998, n\u00f3 \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e0nh chu\u1ea9n m\u1ef1c \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn tr\u00ean to\u00e0n c\u1ea7u \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7. B\u1ea3n s\u1eeda \u0111\u1ed5i n\u0103m 2018\u2014ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh\u2014\u0111\u00e3 gi\u1edbi thi\u1ec7u danh m\u1ee5c CX (c\u1ef1c k\u1ef3) v\u00e0 m\u1edf r\u1ed9ng c\u00e1c t\u00f9y ch\u1ecdn \u0111\u1ed9 b\u1ec1n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i nh\u01b0 \u0111i\u1ec7n gi\u00f3 ngo\u00e0i kh\u01a1i, l\u1eafp \u0111\u1eb7t n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi ven bi\u1ec3n v\u00e0 m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1edbi kh\u1eafc nghi\u1ec7t.<\/p>\n<p><strong>L\u00e0m r\u00f5 ph\u1ea1m vi quan tr\u1ecdng:<\/strong> ISO 12944 KH\u00d4NG \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n ri\u00eang l\u1ebb b\u00ean trong v\u1ecf t\u1ee7\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1ed1i \u0111\u1ea7u cu\u1ed1i, MCB, contactor ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn d\u1eabn \u0111i\u1ec7n kh\u00e1c. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y y\u00eau c\u1ea7u c\u00e1c chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n ri\u00eang bi\u1ec7t (xem ph\u1ea7n \u201cRanh gi\u1edbi \u1ee9ng d\u1ee5ng\u201d b\u00ean d\u01b0\u1edbi). Ti\u00eau chu\u1ea9n n\u00e0y ch\u1ec9 t\u1eadp trung v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t th\u00e9p \u0111\u01b0\u1ee3c s\u01a1n\/ph\u1ee7 c\u1ee7a k\u1ebft c\u1ea5u v\u00e0 th\u00e2n v\u1ecf t\u1ee7.<\/p>\n<p>S\u1ee9c m\u1ea1nh c\u1ee7a ti\u00eau chu\u1ea9n n\u1eb1m \u1edf s\u1ef1 \u0111\u01a1n gi\u1ea3n c\u1ee7a n\u00f3: kh\u00f4ng c\u1ea7n ph\u1ecfng \u0111o\u00e1n. Thay v\u00ec tranh c\u00e3i v\u1ec1 c\u00e1c y\u00eau c\u1ea7u m\u01a1 h\u1ed3 nh\u01b0 \u201cs\u01a1n t\u1ed1t\u201d ho\u1eb7c \u201clo\u1ea1i h\u00e0ng h\u1ea3i\u201d, ISO 12944 cung c\u1ea5p c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c\u2014c\u1ea5p \u0111\u1ed9 chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t, lo\u1ea1i s\u01a1n l\u00f3t, \u0111\u1ed9 d\u00e0y m\u00e0ng kh\u00f4 (DFT), s\u1ed1 l\u1edbp s\u01a1n v\u00e0 quy tr\u00ecnh ki\u1ec3m tra trong ph\u00f2ng th\u00ed nghi\u1ec7m. T\u00ednh kh\u00e1ch quan n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng cho \u0111\u1ea5u th\u1ea7u, h\u1ee3p \u0111\u1ed3ng mua s\u1eafm v\u00e0 x\u00e1c minh ch\u1ea5t l\u01b0\u1ee3ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n<hr \/>\n<h2>C\u00e1c lo\u1ea1i \u0103n m\u00f2n: C1 \u0111\u1ebfn CX<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-3-panel-comparison-chart-illustrating-environmental-exposure-conditions-for-ISO-12944-C1-indoor-low-corrosion.webp\" alt=\"Comparison chart illustrating environmental exposure conditions for ISO 12944 C1, C3 and C5 categories\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 3: So s\u00e1nh m\u00f4i tr\u01b0\u1eddng gi\u1eefa \u0111i\u1ec1u ki\u1ec7n ph\u01a1i nhi\u1ec5m C1 (Trong nh\u00e0), C3 (Ven bi\u1ec3n v\u1eeba ph\u1ea3i) v\u00e0 C5 (Ngo\u00e0i kh\u01a1i kh\u1eafc nghi\u1ec7t).<\/figcaption><\/figure>\n<p>ISO 12944-2 ph\u00e2n lo\u1ea1i m\u00f4i tr\u01b0\u1eddng th\u00e0nh s\u00e1u lo\u1ea1i \u0103n m\u00f2n. M\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c: m\u1ee9c \u0111\u1ed9 \u1ea9m, k\u1ebft qu\u1ea3 t\u1eeb s\u1ef1 ng\u01b0ng t\u1ee5, c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m trong kh\u00ed quy\u1ec3n (SO\u2082) v\u00e0 s\u1ef1 l\u1eafng \u0111\u1ecdng mu\u1ed1i \u1edf c\u00e1c khu v\u1ef1c ven bi\u1ec3n. Ti\u00eau chu\u1ea9n \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u1ed9 \u0103n m\u00f2n b\u1eb1ng c\u00e1ch \u0111o \u0111\u1ed9 hao h\u1ee5t kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 hao h\u1ee5t \u0111\u1ed9 d\u00e0y c\u1ee7a c\u00e1c m\u1eabu th\u00e9p v\u00e0 k\u1ebdm ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c ph\u01a1i trong m\u1ed9t n\u0103m.<\/p>\n<h3>C1: \u0110\u1ed9 \u0103n m\u00f2n r\u1ea5t th\u1ea5p<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> C\u00e1c t\u00f2a nh\u00e0 c\u00f3 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed v\u1edbi kh\u00f4ng kh\u00ed s\u1ea1ch<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> T\u00f2a nh\u00e0 v\u0103n ph\u00f2ng, tr\u01b0\u1eddng h\u1ecdc, kh\u00e1ch s\u1ea1n, trung t\u00e2m mua s\u1eafm<br \/>\n<em>T\u1eadp trung v\u00e0o n\u1ed9i th\u1ea5t:<\/em> C\u00f3 (C1 b\u00ean ngo\u00e0i r\u1ea5t hi\u1ebfm)<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> \u22641,3 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> \u22640,1 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> T\u1ed1i thi\u1ec3u 10\u201315 n\u0103m<\/p>\n<p>C1 v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m \u0103n m\u00f2n. Trong m\u00f4i tr\u01b0\u1eddng trong nh\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, ngay c\u1ea3 nh\u00f4m kh\u00f4ng ph\u1ee7 c\u0169ng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00f4 th\u1eddi h\u1ea1n. H\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 \u1edf \u0111\u00e2y l\u00e0 t\u1ed1i thi\u1ec3u\u2014m\u1ed9t l\u1edbp acrylic ho\u1eb7c alkyd duy nh\u1ea5t, t\u1ed5ng DFT kho\u1ea3ng 60\u2013100 \u00b5m.<\/p>\n<h3>C2: \u0110\u1ed9 \u0103n m\u00f2n th\u1ea5p<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> Khu v\u1ef1c n\u00f4ng th\u00f4n, v\u00f9ng \u00f4n \u0111\u1edbi, \u00f4 nhi\u1ec5m t\u1ed1i thi\u1ec3u; c\u00e1c t\u00f2a nh\u00e0 kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi c\u00f3 nguy c\u01a1 ng\u01b0ng t\u1ee5<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> Nh\u00e0 kho n\u00f4ng th\u00f4n, c\u01a1 s\u1edf n\u00f4ng nghi\u1ec7p, nh\u00e0 thi \u0111\u1ea5u th\u1ec3 thao<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> &gt;1,3 \u0111\u1ebfn 25 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> &gt;0,1 \u0111\u1ebfn 0,7 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> 7\u201310 n\u0103m<\/p>\n<p>C2 \u00e1p d\u1ee5ng cho m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi s\u1ea1ch s\u1ebd ho\u1eb7c kh\u00f4ng gian trong nh\u00e0 kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi. Kh\u00f4ng c\u00f3 kh\u00f4ng kh\u00ed mu\u1ed1i. \u00d4 nhi\u1ec5m SO\u2082 l\u00e0 t\u1ed1i thi\u1ec3u. H\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 t\u0103ng l\u00ean m\u1ed9t c\u00e1ch khi\u00eam t\u1ed1n: m\u1ed9t l\u1edbp s\u01a1n l\u00f3t + m\u1ed9t l\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng, DFT 100\u2013150 \u00b5m.<\/p>\n<h3>C3: \u0110\u1ed9 \u0103n m\u00f2n trung b\u00ecnh<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> B\u1ea7u kh\u00f4ng kh\u00ed \u0111\u00f4 th\u1ecb v\u00e0 c\u00f4ng nghi\u1ec7p; \u00f4 nhi\u1ec5m SO\u2082 v\u1eeba ph\u1ea3i; khu v\u1ef1c ven bi\u1ec3n c\u00f3 \u0111\u1ed9 m\u1eb7n th\u1ea5p<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> Nh\u00e0 m\u00e1y th\u00e0nh ph\u1ed1, nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, nh\u00e0 m\u00e1y bia, nh\u00e0 gi\u1eb7t, l\u1eafp \u0111\u1eb7t ven bi\u1ec3n c\u00f3 \u0111\u1ed9 m\u1eb7n th\u1ea5p<br \/>\n<em>V\u00ed d\u1ee5 v\u1ec1 n\u1ed9i th\u1ea5t:<\/em> Ph\u00f2ng s\u1ea3n xu\u1ea5t c\u00f3 \u0111\u1ed9 \u1ea9m cao v\u1edbi m\u1ed9t s\u1ed1 \u00f4 nhi\u1ec5m<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> &gt;25 \u0111\u1ebfn 50 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> &gt;0,7 \u0111\u1ebfn 2,1 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> 5\u20137 n\u0103m (b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean)<\/p>\n<p>C3 l\u00e0 n\u01a1i nhi\u1ec1u c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p \u0111\u1eb7t ch\u00e2n \u0111\u1ebfn. \u0110\u1ed9 \u1ea9m t\u0103ng cao; s\u1ef1 ng\u01b0ng t\u1ee5 x\u1ea3y ra th\u01b0\u1eddng xuy\u00ean. Kh\u00f4ng kh\u00ed mang theo b\u1ee5i c\u00f4ng nghi\u1ec7p v\u00e0 SO\u2082 nh\u1eb9. L\u1edbp ph\u1ee7 hi\u1ec7n bao g\u1ed3m s\u01a1n l\u00f3t epoxy gi\u00e0u k\u1ebdm v\u00e0 l\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng b\u1eb1ng polyurethane \u0111\u1ec3 ch\u1ed1ng tia c\u1ef1c t\u00edm. T\u1ed5ng DFT: 120\u2013200 \u00b5m. M\u00f4i tr\u01b0\u1eddng C3 l\u00e0 \u0111i\u1ec3n h\u00ecnh cho <strong>k\u1ebft c\u1ea5u th\u00e9p, khung thi\u1ebft b\u1ecb v\u00e0 th\u00e2n v\u1ecf t\u1ee7 \u0111i\u1ec7n<\/strong> trong c\u00e1c nh\u00e0 m\u00e1y \u0111\u00f4 th\u1ecb v\u00e0 nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m. C\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong nh\u01b0 kh\u1ed1i \u0111\u1ea7u cu\u1ed1i, MCB v\u00e0 contactor b\u00ean trong t\u1ee7 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 C3 s\u1eed d\u1ee5ng c\u00e1c chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 ri\u00eang c\u1ee7a ch\u00fang (m\u1ea1 \u0111i\u1ec7n, v\u1eadt li\u1ec7u kh\u00f4ng g\u1ec9) nh\u01b0 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong ph\u1ea7n \u201cRanh gi\u1edbi \u1ee9ng d\u1ee5ng\u201d.<\/p>\n<h3>C4: \u0110\u1ed9 \u0103n m\u00f2n cao<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> Khu c\u00f4ng nghi\u1ec7p c\u00f3 \u0111\u1ed9 m\u1eb7n v\u1eeba ph\u1ea3i; v\u00f9ng ven bi\u1ec3n c\u00f3 s\u01b0\u01a1ng mu\u1ed1i theo m\u00f9a<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> Nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, c\u01a1 s\u1edf b\u1ec3 b\u01a1i, x\u01b0\u1edfng \u0111\u00f3ng t\u00e0u c\u00f3 \u0111\u1ed9 m\u1eb7n v\u1eeba ph\u1ea3i, khu c\u00f4ng nghi\u1ec7p ven bi\u1ec3n<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> &gt;50 \u0111\u1ebfn 80 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> &gt;2,1 \u0111\u1ebfn 4,2 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> 4\u20135 n\u0103m (b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean)<\/p>\n<p>C4 gi\u1edbi thi\u1ec7u r\u1ee7i ro \u0103n m\u00f2n nghi\u00eam tr\u1ecdng. S\u01b0\u01a1ng mu\u1ed1i hi\u1ec7n l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1. \u0110\u1ed9 \u1ea9m v\u1eabn cao. M\u1ed9t t\u1ea5m th\u00e9p tr\u1ea7n ti\u1ebfp x\u00fac v\u1edbi C4 s\u1ebd c\u00f3 d\u1ea5u hi\u1ec7u g\u1ec9 s\u00e9t r\u00f5 r\u00e0ng trong v\u00f2ng v\u00e0i th\u00e1ng. L\u1edbp ph\u1ee7 y\u00eau c\u1ea7u 2\u20133 l\u1edbp: s\u01a1n l\u00f3t epoxy gi\u00e0u k\u1ebdm (100\u2013150 \u00b5m), l\u1edbp trung gian epoxy (100\u2013150 \u00b5m), l\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng b\u1eb1ng polyurethane (80\u2013100 \u00b5m). T\u1ed5ng DFT: 200\u2013250 \u00b5m. \u0110i\u1ec1u n\u00e0y \u00e1p d\u1ee5ng cho k\u1ebft c\u1ea5u th\u00e9p v\u00e0 <strong>th\u00e2n v\u1ecf\/t\u1ee7<\/strong>. VIOX <a href=\"https:\/\/test.viox.com\/vi\/cable-gland\/\">\u0111\u1ea7u n\u1ed1i c\u00e1p<\/a> v\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/waterproof-connector\/\">\u0111\u1ea7u n\u1ed1i ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ea7u v\u00e0o c\u00e1p xuy\u00ean qua c\u00e1c b\u1ee9c t\u01b0\u1eddng v\u1ecf t\u1ee7 \u0111\u01b0\u1ee3c s\u01a1n C4 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo IEC 60068-2-11 v\u00e0 x\u1ebfp h\u1ea1ng IP (xem ph\u1ea7n \u201cRanh gi\u1edbi \u1ee9ng d\u1ee5ng\u201d).<\/p>\n<h3>C5: \u0110\u1ed9 \u0103n m\u00f2n r\u1ea5t cao<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> Khu c\u00f4ng nghi\u1ec7p c\u00f3 \u0111\u1ed9 \u1ea9m cao v\u1edbi b\u1ea7u kh\u00f4ng kh\u00ed kh\u1eafc nghi\u1ec7t; v\u00f9ng ven bi\u1ec3n c\u00f3 \u0111\u1ed9 m\u1eb7n cao<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> C\u00e1c c\u0103n c\u1ee9 h\u1ed7 tr\u1ee3 ngo\u00e0i kh\u01a1i, nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t \u1edf c\u00e1c khu v\u1ef1c \u1ea9m \u01b0\u1edbt, l\u1eafp \u0111\u1eb7t h\u00e0ng h\u1ea3i c\u00f3 \u0111\u1ed9 m\u1eb7n cao, c\u00e1c \u0111\u1ecba \u0111i\u1ec3m c\u00f4ng nghi\u1ec7p nhi\u1ec7t \u0111\u1edbi<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> &gt;80 \u0111\u1ebfn 200 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> &gt;4.2 \u0111\u1ebfn 8.4 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> 3\u20134 n\u0103m (b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean)<\/p>\n<p>C5 l\u00e0 m\u1ee9c kh\u1eafc nghi\u1ec7t. \u0102n m\u00f2n t\u0103ng t\u1ed1c kh\u00f4ng ng\u1eebng. M\u1ed9t d\u1ea7m th\u00e9p tr\u1ea7n s\u1ebd xu\u1ea5t hi\u1ec7n r\u1ed7 s\u00e2u v\u00e0 m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 trong m\u1ed9t n\u0103m. H\u1ec7 th\u1ed1ng s\u01a1n ph\u1ee7 tr\u1edf n\u00ean ch\u1ecbu t\u1ea3i n\u1eb7ng: l\u1edbp l\u00f3t epoxy gi\u00e0u k\u1ebdm (100\u2013150 \u00b5m), l\u1edbp trung gian epoxy d\u00e0y (150\u2013250 \u00b5m), l\u1edbp ph\u1ee7 ngo\u00e0i polyurethane (100\u2013150 \u00b5m). T\u1ed5ng DFT th\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 300\u2013320 \u00b5m. B\u1eaft bu\u1ed9c ph\u1ea3i c\u00f3 nhi\u1ec1u l\u1edbp s\u01a1n. Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t ph\u1ea3i \u0111\u1ea1t Sa3 (l\u00e0m s\u1ea1ch b\u1eb1ng phun c\u00e1t g\u1ea7n nh\u01b0 tr\u1eafng) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u00e1m d\u00ednh. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n cho <strong>c\u00e1c n\u1ec1n t\u1ea3ng ngo\u00e0i kh\u01a1i k\u1ebft c\u1ea5u, t\u00e0u bi\u1ec3n v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00f4ng nghi\u1ec7p quan tr\u1ecdng<\/strong>. C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c g\u1eafn b\u00ean trong c\u00e1c c\u1ea5u tr\u00fac n\u00e0y (t\u1eeb VIOX ho\u1eb7c c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c) tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n \u0111i\u1ec7n, kh\u00f4ng ph\u1ea3i ISO 12944.<\/p>\n<h3>CX: \u0110\u1ed9 \u0103n m\u00f2n c\u1ef1c cao<\/h3>\n<p><em>M\u00f4i tr\u01b0\u1eddng \u0111i\u1ec3n h\u00ecnh:<\/em> C\u00e1c khu v\u1ef1c ngo\u00e0i kh\u01a1i c\u00f3 \u0111\u1ed9 m\u1eb7n cao; \u0111\u1ed9 \u1ea9m c\u1ef1c cao + m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p kh\u1eafc nghi\u1ec7t; kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi\/c\u1eadn nhi\u1ec7t \u0111\u1edbi v\u1edbi \u0111\u1ed9 \u1ea9m dai d\u1eb3ng<\/p>\n<p><em>V\u00ed d\u1ee5:<\/em> C\u00e1c gi\u00e0n khoan d\u1ea7u kh\u00ed ngo\u00e0i kh\u01a1i, c\u00e1c c\u00f4ng tr\u00ecnh ven bi\u1ec3n nhi\u1ec7t \u0111\u1edbi kh\u1eafc nghi\u1ec7t, c\u00e1c c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 thi\u1ebft b\u1ecb d\u01b0\u1edbi bi\u1ec3n<br \/>\n<em>Hao h\u1ee5t th\u00e9p (N\u0103m 1):<\/em> &gt;200 \u0111\u1ebfn 700 \u00b5m<br \/>\n<em>Hao h\u1ee5t k\u1ebdm (N\u0103m 1):<\/em> &gt;8.4 \u0111\u1ebfn 25 \u00b5m<br \/>\n<em>Kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec \u0111i\u1ec3n h\u00ecnh:<\/em> 2\u20133 n\u0103m (b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean)<\/p>\n<p>CX l\u00e0 gi\u1edbi h\u1ea1n cu\u1ed1i c\u00f9ng. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 gi\u1edbi thi\u1ec7u danh m\u1ee5c n\u00e0y v\u00e0o n\u0103m 2018 \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng hi\u1ec7n \u0111\u1ea1i (trang tr\u1ea1i \u0111i\u1ec7n gi\u00f3 ngo\u00e0i kh\u01a1i, \u0111i\u1ec7n m\u1eb7t tr\u1eddi n\u1ed5i). T\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n l\u00e0 phi th\u01b0\u1eddng. Th\u00e9p tr\u1ea7n xu\u1ed1ng c\u1ea5p r\u00f5 r\u1ec7t trong v\u00f2ng v\u00e0i tu\u1ea7n. H\u1ec7 th\u1ed1ng s\u01a1n ph\u1ee7 th\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 350\u2013450 \u00b5m DFT, k\u1ebft h\u1ee3p l\u1edbp l\u00f3t epoxy gi\u00e0u k\u1ebdm, nhi\u1ec1u l\u1edbp trung gian d\u00e0y v\u00e0 l\u1edbp ph\u1ee7 ngo\u00e0i polysiloxane ho\u1eb7c polyurethane aliphatic chuy\u00ean d\u1ee5ng. C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1edfi ISO 12944-9 (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 NORSOK M-501 cho ngo\u00e0i kh\u01a1i) v\u00e0 vi\u1ec7c th\u1eed nghi\u1ec7m r\u1ea5t nghi\u00eam ng\u1eb7t v\u00e0 k\u00e9o d\u00e0i.<\/p>\n<hr \/>\n<h2>Ranh gi\u1edbi \u1ee9ng d\u1ee5ng: Nh\u1eefng g\u00ec ISO 12944 bao g\u1ed3m v\u00e0 kh\u00f4ng bao g\u1ed3m<\/h2>\n<p>M\u1ed9t \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng m\u00e0 c\u00e1c k\u1ef9 s\u01b0 ph\u1ea3i hi\u1ec3u: <strong>ISO 12944 \u00e1p d\u1ee5ng cho th\u00e9p k\u1ebft c\u1ea5u v\u00e0 th\u00e2n v\u1ecf\u2014kh\u00f4ng \u00e1p d\u1ee5ng cho c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n b\u00ean trong.<\/strong><\/p>\n<h3>Nh\u1eefng g\u00ec ISO 12944 BAO G\u1ed2M:<\/h3>\n<ul>\n<li>Khung k\u1ebft c\u1ea5u th\u00e9p (c\u1ea7u, th\u00e1p, t\u00f2a nh\u00e0 c\u00f4ng nghi\u1ec7p)<\/li>\n<li>Th\u00e2n v\u1ecf\/t\u1ee7 \u0111i\u1ec7n b\u1eb1ng th\u00e9p<\/li>\n<li>T\u1ea5m g\u1eafn, m\u00e1ng c\u00e1p v\u00e0 gi\u00e1 \u0111\u1ee1 b\u1eb1ng th\u00e9p<\/li>\n<li>V\u1ecf thi\u1ebft b\u1ecb th\u00e9p ngo\u00e0i tr\u1eddi<\/li>\n<\/ul>\n<h3>Nh\u1eefng g\u00ec ISO 12944 KH\u00d4NG BAO G\u1ed2M:<\/h3>\n<ul>\n<li><strong>Kh\u1ed1i \u0111\u1ea7u cu\u1ed1i, \u0111\u1ea7u n\u1ed1i v\u00e0 d\u00e2y d\u1eabn b\u00ean trong v\u1ecf<\/strong> \u2013 Ch\u00fang s\u1eed d\u1ee5ng l\u1edbp m\u1ea1 \u0111i\u1ec7n (thi\u1ebfc, b\u1ea1c, v\u00e0ng) ho\u1eb7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u (th\u00e9p kh\u00f4ng g\u1ec9 316L, \u0111\u1ed3ng m\u1ea1 niken, nh\u1ef1a PA66) theo th\u1eed nghi\u1ec7m phun mu\u1ed1i IEC 60068-2-11 ho\u1eb7c x\u1ebfp h\u1ea1ng NEMA\/IP<\/li>\n<li><strong>B\u1ed9 ng\u1eaft m\u1ea1ch (MCB, MCCB)<\/strong> \u2013 \u0110\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng l\u1edbp m\u1ea1 b\u00ean trong + khoa h\u1ecdc v\u1eadt li\u1ec7u, kh\u00f4ng ph\u1ea3i s\u01a1n<\/li>\n<li><strong>Ti\u1ebfp \u0111i\u1ec3m v\u00e0 r\u01a1le<\/strong> \u2013 D\u1ef1a v\u00e0o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u1ea1 (thi\u1ebfc ho\u1eb7c b\u1ea1c m\u1ea1 \u0111i\u1ec7n tr\u00ean \u0111\u1ed3ng) + v\u1ecf k\u00edn (IP54\/IP55)<\/li>\n<li><strong>B\u1ea5t k\u1ef3 th\u00e0nh ph\u1ea7n d\u1eabn \u0111i\u1ec7n n\u00e0o<\/strong> \u2013 Vi\u1ec7c ph\u1ee7 h\u00e0ng tr\u0103m micromet s\u01a1n epoxy l\u00ean m\u1ed9t \u0111\u1ea7u n\u1ed1i mang d\u00f2ng \u0111i\u1ec7n s\u1ebd g\u00e2y ra s\u1ef1 c\u1ed1 c\u00e1ch \u0111i\u1ec7n ho\u1eb7c h\u1ecfng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac<\/li>\n<\/ul>\n<p><strong>T\u1ea1i sao s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u1ea1i quan tr\u1ecdng:<\/strong> Ch\u1ec9 \u0111\u1ecbnh \u201cl\u1edbp ph\u1ee7 ISO 12944 C5\u201d cho kh\u1ed1i \u0111\u1ea7u cu\u1ed1i ho\u1eb7c MCB l\u00e0 kh\u00f4ng ch\u00ednh x\u00e1c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 kh\u00f4ng th\u1ef1c t\u1ebf. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nhau:<\/p>\n<ul>\n<li><strong>IEC 60068-2-11<\/strong> \u2013 Th\u1eed nghi\u1ec7m phun mu\u1ed1i (96 ho\u1eb7c 1000 gi\u1edd)<\/li>\n<li><strong>X\u1ebfp h\u1ea1ng lo\u1ea1i NEMA<\/strong> \u2013 B\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u1ecf<\/li>\n<li><strong>X\u1ebfp h\u1ea1ng IP<\/strong> \u2013 B\u1ea3o v\u1ec7 ch\u1ed1ng x\u00e2m nh\u1eadp (b\u1ee5i\/\u0111\u1ed9 \u1ea9m)<\/li>\n<li><strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u1ea1 c\u1ea5p th\u00e0nh ph\u1ea7n<\/strong> \u2013 \u0110\u1ed9 d\u00e0y l\u1edbp, \u0111\u1ed9 b\u00e1m d\u00ednh, \u0111\u1ed9 c\u1ee9ng theo IEC 60068-2-50<\/li>\n<\/ul>\n<p>Trong mua s\u1eafm th\u1ef1c t\u1ebf: M\u1ed9t t\u1ee7 \u0111i\u1ec7n <strong>th\u00e2n v\u1ecf<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh \u201cISO 12944 C4-M\u201d (c\u00f4ng nghi\u1ec7p ven bi\u1ec3n, \u0111\u1ed9 b\u1ec1n trung b\u00ecnh). C\u00e1c <strong>th\u00e0nh ph\u1ea7n b\u00ean trong<\/strong> v\u1ecf \u0111\u00f3 (kh\u1ed1i \u0111\u1ea7u cu\u1ed1i, MCB, contactor t\u1eeb VIOX ho\u1eb7c \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh) \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ri\u00eang theo \u0111\u1ed9 d\u00e0y l\u1edbp m\u1ea1, lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 x\u1ebfp h\u1ea1ng IP c\u1ee7a ch\u00fang\u2014kh\u00f4ng ph\u1ea3i theo ISO 12944.<\/p>\n<hr \/>\n<h2>C\u00e1c c\u1ea5p \u0111\u1ed9 b\u1ec1n: L\u1eadp k\u1ebf ho\u1ea1ch chu k\u1ef3 b\u1ea3o tr\u00ec<\/h2>\n<p>\u0110\u1ed9 b\u1ec1n, theo ng\u00f4n ng\u1eef ISO 12944, kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ea3o h\u00e0nh. \u0110\u00f3 l\u00e0 <strong>th\u1eddi gian d\u1ef1 ki\u1ebfn cho \u0111\u1ebfn l\u1ea7n s\u01a1n b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean<\/strong> l\u00e0 b\u1eaft bu\u1ed9c. H\u00e3y coi n\u00f3 nh\u01b0 m\u1ed9t tham s\u1ed1 l\u1eadp k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u1ef1 \u0111\u1ea3m b\u1ea3o. Khi m\u1ed9t l\u1edbp ph\u1ee7 \u0111\u1ea1t \u0111\u1ebfn Ri3 tr\u00ean thang \u0111o ch\u00e2u \u00c2u (kho\u1ea3ng 5\u201310% di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t b\u1ecb r\u1ec9 s\u00e9t c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng), c\u1ea7n ph\u1ea3i b\u1ea3o tr\u00ec l\u1edbn.<\/p>\n<h3>Th\u1ea5p (L): L\u00ean \u0111\u1ebfn 7 n\u0103m<\/h3>\n<p>T\u1ed1t nh\u1ea5t cho: C\u00e1c \u1ee9ng d\u1ee5ng C1 trong nh\u00e0, m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 \u0103n m\u00f2n th\u1ea5p \u0111\u01b0\u1ee3c che ch\u1eafn ho\u1eb7c c\u00e1c c\u1ea5u tr\u00fac t\u1ea1m th\u1eddi<br \/>\nH\u1ec7 th\u1ed1ng \u0111i\u1ec3n h\u00ecnh: Acrylic ho\u1eb7c alkyd m\u1ed9t l\u1edbp (60\u2013100 \u00b5m DFT)<br \/>\nT\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu: Tr\u1ea3 tr\u01b0\u1edbc th\u1ea5p nh\u1ea5t; s\u01a1n ph\u1ee7 l\u1ea1i th\u01b0\u1eddng xuy\u00ean<\/p>\n<h3>Trung b\u00ecnh (M): 7\u201315 n\u0103m<\/h3>\n<p>T\u1ed1t nh\u1ea5t cho: C\u00e1c c\u01a1 s\u1edf C2 n\u00f4ng th\u00f4n v\u00e0 C3 \u0111\u00f4 th\u1ecb v\u1edbi ng\u00e2n s\u00e1ch b\u1ea3o tr\u00ec v\u1eeba ph\u1ea3i<br \/>\nH\u1ec7 th\u1ed1ng \u0111i\u1ec3n h\u00ecnh: L\u1edbp l\u00f3t epoxy + l\u1edbp ph\u1ee7 ngo\u00e0i acrylic (120\u2013180 \u00b5m DFT)<br \/>\n\u1ee8ng d\u1ee5ng: Nhi\u1ec1u nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p c\u00e2n b\u1eb1ng chi ph\u00ed v\u00e0 tu\u1ed5i th\u1ecd \u1edf \u0111\u00e2y.<\/p>\n<h3>Cao (H): 15\u201325 n\u0103m<\/h3>\n<p>T\u1ed1t nh\u1ea5t cho: C\u00e1c \u0111\u1ecba \u0111i\u1ec3m c\u00f4ng nghi\u1ec7p ven bi\u1ec3n C4, v\u1ecf \u0111i\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, thi\u1ebft b\u1ecb kh\u00f3 ti\u1ebfp c\u1eadn<br \/>\nH\u1ec7 th\u1ed1ng \u0111i\u1ec3n h\u00ecnh: Epoxy gi\u00e0u k\u1ebdm + epoxy d\u00e0y + polyurethane (200\u2013280 \u00b5m DFT)<br \/>\n\u1ee8ng d\u1ee5ng: C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n VIOX trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t th\u01b0\u1eddng ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n cao.<\/p>\n<h3>R\u1ea5t cao (VH): H\u01a1n 25 n\u0103m<\/h3>\n<p>T\u1ed1t nh\u1ea5t cho: M\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t C5\u2013CX, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng, c\u1ea5u tr\u00fac ngo\u00e0i kh\u01a1i<br \/>\nH\u1ec7 th\u1ed1ng \u0111i\u1ec3n h\u00ecnh: H\u1ec7 th\u1ed1ng nhi\u1ec1u l\u1edbp ti\u00ean ti\u1ebfn; epoxy gi\u00e0u k\u1ebdm, nhi\u1ec1u l\u1edbp trung gian epoxy, l\u1edbp ph\u1ee7 ngo\u00e0i chuy\u00ean d\u1ee5ng (300\u2013450 \u00b5m DFT)<br \/>\n\u1ee8ng d\u1ee5ng: N\u1ec1n t\u1ea3ng \u0111i\u1ec7n gi\u00f3 ngo\u00e0i kh\u01a1i, c\u01a1 s\u1edf h\u00f3a ch\u1ea5t quan tr\u1ecdng, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u01b0\u1edbi bi\u1ec3n<\/p>\n<hr \/>\n<h2>Th\u1eed nghi\u1ec7m trong ph\u00f2ng th\u00ed nghi\u1ec7m: T\u1eeb ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ebfn th\u1ebf gi\u1edbi th\u1ef1c<\/h2>\n<p>ISO 12944-6 \u0111\u1ecbnh ngh\u0129a c\u00e1ch th\u1ee9c x\u00e1c nh\u1eadn h\u1ec7 th\u1ed1ng s\u01a1n ph\u1ee7. C\u00e1c th\u1eed nghi\u1ec7m m\u00f4 ph\u1ecfng c\u00e1c t\u00e1c nh\u00e2n g\u00e2y \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng\u2014phun mu\u1ed1i, chu k\u1ef3 \u0111\u1ed9 \u1ea9m, tia UV, thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9\u2014\u0111\u1ec3 d\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf.<\/p>\n<h3>Ch\u01b0\u01a1ng tr\u00ecnh Th\u1eed nghi\u1ec7m Kh\u00ed quy\u1ec3n (C2 \u0111\u1ebfn C5)<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ea1ng m\u1ee5c C2\u2013C5, th\u1eed nghi\u1ec7m bao g\u1ed3m:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; border-spacing: 0; margin-bottom: 20px;\" border=\"1\">\n<tbody>\n<tr style=\"background-color: #f5f5f5;\">\n<td style=\"padding: 8px;\"><strong>Ph\u01b0\u01a1ng ph\u00e1p Ki\u1ec3m tra<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>C2 Th\u1ea5p<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>C3 Trung b\u00ecnh<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>C4 Cao<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>C5 R\u1ea5t cao<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>M\u1ee5c \u0111\u00edch<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Ng\u01b0ng t\u1ee5 \u0110\u1ed9 \u1ea9m (ISO 6270-1)<\/strong><\/td>\n<td style=\"padding: 8px;\">48\u2013120 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">120\u2013480 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">120\u2013720 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">480\u20131200 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">M\u00f4 ph\u1ecfng s\u01b0\u01a1ng s\u1edbm, ng\u01b0ng t\u1ee5 trong nh\u00e0, s\u1ef1 \u0103n m\u00f2n do mu\u1ed1i<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Phun Mu\u1ed1i Trung t\u00ednh (ISO 9227)<\/strong><\/td>\n<td style=\"padding: 8px;\">T\u1ed1i thi\u1ec3u<\/td>\n<td style=\"padding: 8px;\">240 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">480\u2013720 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">720\u20131440 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">M\u00f4 ph\u1ecfng s\u1ef1 t\u1ea5n c\u00f4ng c\u1ee7a kh\u00f4ng kh\u00ed m\u1eb7n ven bi\u1ec3n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Ng\u00e2m N\u01b0\u1edbc (ISO 2812-2)<\/strong><\/td>\n<td style=\"padding: 8px;\">T\u1ed1i thi\u1ec3u<\/td>\n<td style=\"padding: 8px;\">T\u1ed1i thi\u1ec3u<\/td>\n<td style=\"padding: 8px;\">T\u1ed1i thi\u1ec3u<\/td>\n<td style=\"padding: 8px;\">T\u1ed1i thi\u1ec3u<\/td>\n<td style=\"padding: 8px;\">X\u00e1c \u0111\u1ecbnh nguy c\u01a1 ph\u1ed3ng r\u1ed9p th\u1ea9m th\u1ea5u<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>L\u00e3o h\u00f3a Theo chu k\u1ef3 (Ph\u1ee5 l\u1ee5c B)<\/strong><\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng c\u00f3<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng c\u00f3<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng c\u00f3<\/td>\n<td style=\"padding: 8px;\">1680\u20132400 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">K\u1ebft h\u1ee3p tia UV, \u0111\u1ed9 \u1ea9m, phun mu\u1ed1i, chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1ed9 b\u1ec1n C5 R\u1ea5t Cao ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c 480 gi\u1edd ng\u01b0ng t\u1ee5, 1440 gi\u1edd phun mu\u1ed1i v\u00e0 1680 gi\u1edd l\u00e3o h\u00f3a theo chu k\u1ef3\u2014t\u1ed5ng c\u1ed9ng h\u01a1n 3600 gi\u1edd th\u1eed nghi\u1ec7m t\u00edch l\u0169y. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed9 b\u1ec1n r\u1ea5t cao c\u00f3 gi\u00e1 cao h\u01a1n 2\u20133 l\u1ea7n so v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed9 b\u1ec1n trung b\u00ecnh.<\/p>\n<h3>Ch\u01b0\u01a1ng tr\u00ecnh Th\u1eed nghi\u1ec7m Ng\u00e2m (Im1\u2013Im3 cho c\u00e1c Th\u00e0nh ph\u1ea7n Ch\u00f4n ho\u1eb7c \u01af\u1edbt)<\/h3>\n<p>V\u00ec <a href=\"https:\/\/test.viox.com\/vi\/cable-gland\/\">\u0111\u1ea7u n\u1ed1i c\u00e1p<\/a> v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n trong d\u1ecbch v\u1ee5 ng\u1eadp ho\u1eb7c \u01b0\u1edbt:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; border-spacing: 0; margin-bottom: 20px;\" border=\"1\">\n<tbody>\n<tr style=\"background-color: #f5f5f5;\">\n<td style=\"padding: 8px;\"><strong>H\u1ea1ng m\u1ee5c Ng\u00e2m<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>Lo\u1ea1i N\u01b0\u1edbc<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>\u0110\u1ed9 b\u1ec1n cao<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>\u0110\u1ed9 b\u1ec1n R\u1ea5t Cao<\/strong><\/td>\n<td style=\"padding: 8px;\"><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Im1<\/strong><\/td>\n<td style=\"padding: 8px;\">N\u01b0\u1edbc ng\u1ecdt (s\u00f4ng)<\/td>\n<td style=\"padding: 8px;\">3000 gi\u1edd ng\u00e2m + 1440 gi\u1edd ng\u01b0ng t\u1ee5<\/td>\n<td style=\"padding: 8px;\">4000 gi\u1edd + 2160 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">Th\u1ee7y \u0111i\u1ec7n, c\u00e1c c\u00f4ng tr\u00ecnh \u0111\u1eadp<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Im2<\/strong><\/td>\n<td style=\"padding: 8px;\">N\u01b0\u1edbc bi\u1ec3n (kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 cat\u1ed1t)<\/td>\n<td style=\"padding: 8px;\">3000 gi\u1edd ng\u00e2m + 1440 gi\u1edd phun mu\u1ed1i<\/td>\n<td style=\"padding: 8px;\">4000 gi\u1edd + 2160 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">C\u00e1c c\u00f4ng tr\u00ecnh bi\u1ec3n ng\u1eadp n\u01b0\u1edbc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Im3<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0110\u1ea5t (\u0111\u01b0\u1eddng \u1ed1ng ch\u00f4n ng\u1ea7m)<\/td>\n<td style=\"padding: 8px;\">3000 gi\u1edd ng\u00e2m + 1440 gi\u1edd phun mu\u1ed1i<\/td>\n<td style=\"padding: 8px;\">4000 gi\u1edd + 2160 gi\u1edd<\/td>\n<td style=\"padding: 8px;\">\u1ed0ng d\u1eabn \u0111i\u1ec7n ng\u1ea7m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>H\u1ec7 th\u1ed1ng S\u01a1n v\u00e0 \u0110\u1ed9 d\u00e0y M\u00e0ng Kh\u00f4 (DFT)<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-cutaway-diagram-showing-a-5-layer-industrial-paint-coating-system-applied-to-steel-substrate.webp\" alt=\"Technical cutaway diagram showing a 5 layer industrial paint coating system applied to steel substrate with DFT measurements\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 4: C\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 \u2014 m\u1eb7t c\u1eaft chi ti\u1ebft c\u1ee7a h\u1ec7 th\u1ed1ng s\u01a1n 5 l\u1edbp minh h\u1ecda c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0110\u1ed9 d\u00e0y M\u00e0ng Kh\u00f4 (DFT).<\/figcaption><\/figure>\n<p>ISO 12944-5 quy \u0111\u1ecbnh c\u00e1c h\u1ec7 th\u1ed1ng s\u01a1n ph\u1ee7 cho m\u1ed7i s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n. <strong>\u0110\u1ed9 d\u00e0y M\u00e0ng Kh\u00f4 (DFT)<\/strong> l\u00e0 r\u1ea5t quan tr\u1ecdng: \u0111\u00f3 l\u00e0 \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 kh\u00f4 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng micromet (\u00b5m). D\u00e0y h\u01a1n kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng t\u1ed1t h\u01a1n\u2014\u0111\u1ed9 b\u00e1m d\u00ednh quan tr\u1ecdng\u2014nh\u01b0ng DFT l\u00e0 \u0111\u00f2n b\u1ea9y ch\u00ednh cho \u0111\u1ed9 b\u1ec1n.<\/p>\n<h3>C\u00e1c H\u1ec7 th\u1ed1ng Nhi\u1ec1u l\u1edbp Ph\u1ee7 \u0110i\u1ec3n h\u00ecnh<\/h3>\n<p><strong>C1 Th\u1ea5p:<\/strong><\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng: Acrylic m\u1ed9t l\u1edbp<\/li>\n<li>L\u1edbp l\u00f3t: Kh\u00f4ng c\u00f3<\/li>\n<li>L\u1edbp ph\u1ee7 ngo\u00e0i: Acrylic (80 \u00b5m)<\/li>\n<li>L\u1edbp ph\u1ee7: 1<\/li>\n<li>T\u1ed5ng DFT: 80 \u00b5m<\/li>\n<\/ul>\n<p><strong>C3 Trung b\u00ecnh (Ti\u00eau chu\u1ea9n C\u00f4ng nghi\u1ec7p):<\/strong><\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng: Epoxy k\u1ebdm + polyurethane<\/li>\n<li>L\u1edbp l\u00f3t: Epoxy gi\u00e0u k\u1ebdm (100 \u00b5m)<\/li>\n<li>L\u1edbp trung gian: Epoxy (80 \u00b5m)<\/li>\n<li>L\u1edbp ph\u1ee7 ngo\u00e0i: Polyurethane ch\u1ed1ng tia UV (80 \u00b5m)<\/li>\n<li>L\u1edbp ph\u1ee7: 3<\/li>\n<li>T\u1ed5ng DFT: 260 \u00b5m<\/li>\n<\/ul>\n<p><strong>C5 R\u1ea5t Cao (C\u00f4ng nghi\u1ec7p Kh\u1eafc nghi\u1ec7t):<\/strong><\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng: Epoxy ch\u1ecbu t\u1ea3i n\u1eb7ng + polysiloxane<\/li>\n<li>L\u1edbp l\u00f3t: Epoxy gi\u00e0u k\u1ebdm (120 \u00b5m)<\/li>\n<li>L\u1edbp trung gian 1: Epoxy t\u1ea1o l\u1edbp d\u00e0y (120 \u00b5m)<\/li>\n<li>L\u1edbp trung gian 2: Epoxy d\u00e0y (100 \u00b5m)<\/li>\n<li>L\u1edbp ph\u1ee7 ngo\u00e0i: Polyurethane aliphatic ho\u1eb7c polysiloxane (80\u2013100 \u00b5m)<\/li>\n<li>S\u1ed1 l\u1edbp: 4\u20135<\/li>\n<li>T\u1ed5ng \u0111\u1ed9 d\u00e0y l\u1edbp s\u01a1n kh\u00f4 (DFT): 420\u2013440 \u00b5m<\/li>\n<\/ul>\n<p>M\u1ed7i l\u1edbp c\u00f3 m\u1ed9t ch\u1ee9c n\u0103ng ri\u00eang: l\u1edbp l\u00f3t gi\u00e0u k\u1ebdm t\u1ef1 hy sinh \u0111\u1ec3 b\u1ea3o v\u1ec7 th\u00e9p (b\u1ea3o v\u1ec7 \u0111i\u1ec7n h\u00f3a), l\u1edbp trung gian t\u1ea1o \u0111\u1ed9 d\u00e0y v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV, v\u00e0 l\u1edbp ph\u1ee7 ngo\u00e0i cung c\u1ea5p \u0111\u1ed9 b\u00f3ng, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 m\u1ed9t b\u1ec1 m\u1eb7t hy sinh.<\/p>\n<hr \/>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Array-of-three-freshly-coated-steel-structural-beams-with-bright-epoxy-grey-blue-finish-and-glossy-protective-coating-for-C5-CX-extreme-offshore-exposure.webp\" alt=\"Array of three freshly coated steel structural beams with bright epoxy grey blue finish for C5 CX exposure\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 5: B\u1ea3o v\u1ec7 hi\u1ec7u su\u1ea5t cao \u2014 C\u00e1c d\u1ea7m k\u1ebft c\u1ea5u m\u1edbi \u0111\u01b0\u1ee3c s\u01a1n ph\u1ee7, chu\u1ea9n b\u1ecb cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i kh\u01a1i C5\/CX kh\u1eafc nghi\u1ec7t.<\/figcaption><\/figure>\n<h3>V\u1ecf t\u1ee7 \u0111i\u1ec7n trong Khu c\u00f4ng nghi\u1ec7p ven bi\u1ec3n (C4)<\/h3>\n<p>M\u1ed9t t\u1ee7 \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n b\u1eb1ng th\u00e9p \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean b\u1ebfn t\u00e0u g\u1ea7n m\u1ed9t b\u1ebfn c\u1ea3ng c\u00f3 \u0111\u1ed9 m\u1eb7n v\u1eeba ph\u1ea3i, ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi h\u01a1i mu\u1ed1i quanh n\u0103m. <strong>Th\u00e2n t\u1ee7<\/strong> (khung th\u00e9p k\u1ebft c\u1ea5u v\u00e0 c\u00e1c t\u1ea5m b\u00ean) ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u0103n m\u00f2n C4. Ng\u01b0\u1eddi ch\u1ec9 \u0111\u1ecbnh ch\u1ecdn <strong>C4-M (\u0110\u1ed9 b\u1ec1n trung b\u00ecnh, 5\u20137 n\u0103m)<\/strong> cho th\u00e2n t\u1ee7.<\/p>\n<p><strong>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt th\u00e2n t\u1ee7 (ISO 12944):<\/strong> L\u1edbp l\u00f3t epoxy gi\u00e0u k\u1ebdm (80 \u00b5m) + l\u1edbp trung gian epoxy (100 \u00b5m) + l\u1edbp ph\u1ee7 ngo\u00e0i polyurethane (80 \u00b5m) = t\u1ed5ng \u0111\u1ed9 d\u00e0y l\u1edbp s\u01a1n kh\u00f4 (DFT) 260 \u00b5m. Th\u1eed nghi\u1ec7m bao g\u1ed3m 480 gi\u1edd phun mu\u1ed1i, 240 gi\u1edd ng\u01b0ng t\u1ee5 \u0111\u1ed9 \u1ea9m. L\u1ecbch b\u1ea3o tr\u00ec: ki\u1ec3m tra h\u00e0ng n\u0103m, s\u01a1n l\u1ea1i c\u00e1c b\u1ec1 m\u1eb7t ch\u00ednh sau m\u1ed7i 5\u20137 n\u0103m.<\/p>\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong (KH\u00d4NG theo ISO 12944):<\/strong> B\u00ean trong t\u1ee7 n\u00e0y, VIOX <a href=\"https:\/\/test.viox.com\/vi\/terminal-block\/\">kh\u1ed1i thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">MCB (aptomat)<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/din-rail\/\">DIN<\/a>, V\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/modular-contactor\/\">c\u00e1c ti\u1ebfp \u0111i\u1ec3m<\/a> \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ri\u00eang theo:<\/p>\n<ul>\n<li><strong>Kh\u1ed1i \u0111\u1ea5u d\u00e2y (terminal block):<\/strong> \u0110\u1ea7u n\u1ed1i b\u1eb1ng \u0111\u1ed3ng m\u1ea1 thi\u1ebfc theo IEC 60068-2-11 (t\u1ed1i thi\u1ec3u 96 gi\u1edd phun mu\u1ed1i)<\/li>\n<li><strong>MCB:<\/strong> Ti\u1ebfp \u0111i\u1ec3m m\u1ea1 b\u1ea1c ho\u1eb7c thi\u1ebfc, v\u1ecf k\u00edn IP54<\/li>\n<li><strong>Thanh ray DIN:<\/strong> Th\u00e9p m\u1ea1 k\u1ebdm v\u1edbi m\u1ea1 niken cho c\u00e1c khu v\u1ef1c ti\u1ebfp x\u00fac<\/li>\n<li><strong>Contactor (kh\u1edfi \u0111\u1ed9ng t\u1eeb):<\/strong> Ti\u1ebfp \u0111i\u1ec3m b\u1eb1ng \u0111\u1ed3ng m\u1ea1 niken, cu\u1ed9n d\u00e2y k\u00edn theo NEMA Type 3R<\/li>\n<\/ul>\n<p>Th\u00e2n t\u1ee7 b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong; c\u00e1c th\u00e0nh ph\u1ea7n s\u1eed d\u1ee5ng m\u1ea1\/khoa h\u1ecdc v\u1eadt li\u1ec7u, kh\u00f4ng ph\u1ea3i l\u1edbp s\u01a1n d\u00e0y.<\/p>\n<h3>K\u1ebft c\u1ea5u h\u1ea1 t\u1ea7ng ngo\u00e0i kh\u01a1i: Th\u00e9p s\u01a1n (C5\u2013CX)<\/h3>\n<p>M\u1ed9t khung \u0111\u1ee1 cho m\u1ed9t n\u1ec1n t\u1ea3ng \u0111i\u1ec7n gi\u00f3 ngo\u00e0i kh\u01a1i bao g\u1ed3m th\u00e9p k\u1ebft c\u1ea5u ti\u1ebfp x\u00fac v\u1edbi phun mu\u1ed1i li\u00ean t\u1ee5c c\u00f3 \u0111\u1ed9 m\u1eb7n cao, \u0111\u1ed9 \u1ea9m c\u1ef1c cao v\u00e0 tia UV. Lo\u1ea1i \u0103n m\u00f2n: <strong>CX (C\u1ef1c k\u1ef3 kh\u1eafc nghi\u1ec7t)<\/strong>. Y\u00eau c\u1ea7u tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf: 25+ n\u0103m.<\/p>\n<p><strong>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt th\u00e9p k\u1ebft c\u1ea5u (ISO 12944):<\/strong> H\u1ec7 th\u1ed1ng C5-VH ho\u1eb7c CX-VH. Epoxy gi\u00e0u k\u1ebdm (120 \u00b5m) + hai l\u1edbp trung gian epoxy d\u00e0y (m\u1ed7i l\u1edbp 100 \u00b5m) + l\u1edbp ph\u1ee7 ngo\u00e0i polysiloxane (100 \u00b5m) = t\u1ed5ng \u0111\u1ed9 d\u00e0y l\u1edbp s\u01a1n kh\u00f4 (DFT) 420 \u00b5m. Th\u1eed nghi\u1ec7m bao g\u1ed3m 1440 gi\u1edd phun mu\u1ed1i, 480 gi\u1edd ng\u01b0ng t\u1ee5 \u0111\u1ed9 \u1ea9m v\u00e0 1680 gi\u1edd l\u00e3o h\u00f3a tu\u1ea7n ho\u00e0n. \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt n\u00e0y th\u00fac \u0111\u1ea9y vi\u1ec7c mua s\u1eafm: t\u1ea5t c\u1ea3 c\u00e1c m\u1ed1i h\u00e0n k\u1ebft c\u1ea5u, \u1ed1c v\u00edt v\u00e0 b\u1ec1 m\u1eb7t ph\u1ea3i \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n s\u01a1n ph\u1ee7 nghi\u00eam ng\u1eb7t n\u00e0y.<\/p>\n<p><strong>\u0110\u1ea7u n\u1ed1i c\u00e1p v\u00e0 \u0111\u1ea7u n\u1ed1i (KH\u00d4NG theo ISO 12944):<\/strong> C\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n t\u1ea1i giao di\u1ec7n c\u1ea5u tr\u00fac\u2014<a href=\"https:\/\/test.viox.com\/vi\/cable-gland\/\">\u0111\u1ea7u n\u1ed1i c\u00e1p<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/waterproof-connector\/\">\u0111\u1ea7u n\u1ed1i ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc<\/a>, h\u1ed9p n\u1ed1i\u2014\u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh theo:<\/p>\n<ul>\n<li><strong>\u1ed0ng lu\u1ed3n c\u00e1p (cable gland):<\/strong> Th\u00e2n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L, ren b\u1eb1ng \u0111\u1ed3ng thau m\u1ea1 \u0111i\u1ec7n, v\u00f2ng \u0111\u1ec7m silicone ho\u1eb7c EPDM<\/li>\n<li><strong>\u0110\u1ea7u n\u1ed1i ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc:<\/strong> Ti\u1ebfp \u0111i\u1ec3m m\u1ea1 b\u1ea1c, v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, x\u1ebfp h\u1ea1ng IP67\/IP68<\/li>\n<li><strong>H\u1ed9p n\u1ed1i:<\/strong> Th\u00e2n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c th\u00e9p s\u01a1n t\u0129nh \u0111i\u1ec7n (b\u00ean ngo\u00e0i C5) v\u1edbi c\u00e1c \u0111\u1ea7u n\u1ed1i b\u00ean trong m\u1ea1 niken<\/li>\n<\/ul>\n<p>C\u1ea5u tr\u00fac th\u00e9p s\u01a1n (ISO 12944) v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n \u0111\u01b0\u1ee3c m\u1ea1, k\u00edn (ti\u00eau chu\u1ea9n IEC) ph\u1ed1i h\u1ee3p v\u1edbi nhau nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng.<\/p>\n<h3>C\u01a1 s\u1edf ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m: M\u00f4i tr\u01b0\u1eddng trong nh\u00e0 c\u00f3 \u0111\u1ed9 \u1ea9m cao (C3)<\/h3>\n<p>B\u00ean trong m\u1ed9t nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, \u0111\u1ed9 \u1ea9m b\u00ean trong r\u1ea5t cao; n\u01b0\u1edbc\/s\u1ef1 ng\u01b0ng t\u1ee5 th\u01b0\u1eddng xuy\u00ean bao ph\u1ee7 thi\u1ebft b\u1ecb. SO\u2082 xung quanh t\u1eeb giao th\u00f4ng g\u1ea7n \u0111\u00f3 l\u00e0 th\u1ea5p. Ph\u00e2n lo\u1ea1i: <strong>C3 (\u0110\u1ed9 \u0103n m\u00f2n trung b\u00ecnh)<\/strong>.<\/p>\n<p><strong>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt th\u00e9p k\u1ebft c\u1ea5u\/l\u1eafp \u0111\u1eb7t (ISO 12944):<\/strong> Khung thi\u1ebft b\u1ecb, gi\u00e1 \u0111\u1ee1 v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t th\u00e9p l\u1ed9 ra \u0111\u01b0\u1ee3c s\u01a1n theo C3-M (\u0111\u1ed9 b\u1ec1n 7\u201315 n\u0103m). \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt: L\u1edbp l\u00f3t epoxy gi\u00e0u k\u1ebdm (100 \u00b5m) + l\u1edbp trung gian epoxy (80 \u00b5m) + l\u1edbp ph\u1ee7 ngo\u00e0i polyurethane (80 \u00b5m) = t\u1ed5ng 260 \u00b5m. Th\u1eed nghi\u1ec7m bao g\u1ed3m 240 gi\u1edd phun mu\u1ed1i (m\u00f4 ph\u1ecfng mu\u1ed1i h\u00fat \u1ea9m t\u1eeb vi\u1ec7c x\u1eed l\u00fd th\u1ef1c ph\u1ea9m), 120 gi\u1edd ng\u01b0ng t\u1ee5 \u0111\u1ed9 \u1ea9m.<\/p>\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n (KH\u00d4NG theo ISO 12944):<\/strong> Thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n b\u00ean trong m\u00f4i tr\u01b0\u1eddng n\u00e0y (t\u1eeb VIOX ho\u1eb7c c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c) bao g\u1ed3m <a href=\"https:\/\/test.viox.com\/vi\/modular-contactor\/\">c\u00f4ng t\u1eafc t\u01a1 m\u00f4-\u0111un<\/a>, kh\u1ed1i \u0111\u1ea7u cu\u1ed1i v\u00e0 c\u1ea3m bi\u1ebfn. Ch\u00fang \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi:<\/p>\n<ul>\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c \u0111\u1ed3ng m\u1ea1 niken<\/strong> \u0111\u1ea7u cu\u1ed1i (v\u1eadt li\u1ec7u c\u1ea5p th\u1ef1c ph\u1ea9m)<\/li>\n<li><strong>Cu\u1ed9n d\u00e2y k\u00edn<\/strong> v\u1ecf (t\u1ed1i thi\u1ec3u IP54) v\u1edbi cu\u1ed9n d\u00e2y k\u00edn epoxy (KH\u00d4NG s\u01a1n)<\/li>\n<li><strong>Nh\u1ef1a (PA66 ho\u1eb7c POM)<\/strong> c\u00e1c th\u00e0nh ph\u1ea7n c\u00e1ch \u0111i\u1ec7n, v\u1ed1n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/li>\n<\/ul>\n<p>Khung th\u00e9p s\u01a1n duy tr\u00ec m\u00f4i tr\u01b0\u1eddng kh\u00f4 r\u00e1o b\u00ean trong v\u1ecf \u0111i\u1ec7n; c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong s\u1eed d\u1ee5ng khoa h\u1ecdc v\u1eadt li\u1ec7u v\u00e0 v\u1ecf k\u00edn.<\/p>\n<hr \/>\n<h2>Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng<\/h2>\n<h3>Q1: \u0110\u1ed9 b\u1ec1n c\u00f3 gi\u1ed1ng nh\u01b0 b\u1ea3o h\u00e0nh kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. \u0110\u1ed9 b\u1ec1n l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 l\u1eadp k\u1ebf ho\u1ea1ch k\u1ef9 thu\u1eadt \u2014 th\u1eddi gian cho \u0111\u1ebfn khi <em>b\u1ea3o tr\u00ec l\u1edbn \u0111\u1ea7u ti\u00ean<\/em> l\u00e0 c\u1ea7n thi\u1ebft. M\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 \u0111\u1ed9 b\u1ec1n 15 n\u0103m c\u00f3 th\u1ec3 c\u00f3 b\u1ea3o h\u00e0nh 10 n\u0103m v\u00ec b\u1ea3o h\u00e0nh li\u00ean quan \u0111\u1ebfn chuy\u1ec3n giao r\u1ee7i ro v\u00e0 tr\u00e1ch nhi\u1ec7m ph\u00e1p l\u00fd. \u0110\u1ed9 b\u1ec1n gi\u00fap b\u1ea1n l\u00ean l\u1ecbch b\u1ea3o tr\u00ec; b\u1ea3o h\u00e0nh l\u00e0 m\u1ed9t \u0111\u1ea3m b\u1ea3o ph\u00e1p l\u00fd\/th\u01b0\u01a1ng m\u1ea1i.<\/p>\n<h3>Q2: L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 bi\u1ebft m\u00f4i tr\u01b0\u1eddng c\u1ee7a t\u00f4i l\u00e0 C3 hay C4?<\/h3>\n<p><strong>C\u00e1c ch\u1ec9 s\u1ed1 C3:<\/strong> B\u1ea7u kh\u00f4ng kh\u00ed \u0111\u00f4 th\u1ecb\/c\u00f4ng nghi\u1ec7p, ng\u01b0ng t\u1ee5 kh\u00f4ng th\u01b0\u1eddng xuy\u00ean trong nh\u00e0, m\u00f9i SO\u2082 nh\u1eb9, \u0111\u1ed9 m\u1eb7n th\u1ea5p ho\u1eb7c kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng ra bi\u1ec3n.<br \/>\n<strong>C\u00e1c ch\u1ec9 s\u1ed1 C4:<\/strong> V\u1ecb tr\u00ed ven bi\u1ec3n, th\u01b0\u1eddng xuy\u00ean c\u00f3 h\u01a1i mu\u1ed1i, \u0111\u1ed9 \u1ea9m li\u00ean t\u1ee5c, \u0103n m\u00f2n th\u1ea5y r\u00f5 tr\u00ean th\u00e9p kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 trong v\u00f2ng 1\u20132 th\u00e1ng.<\/p>\n<p>Tham kh\u1ea3o b\u1ea3n \u0111\u1ed3 \u0103n m\u00f2n c\u1ee5c b\u1ed9 (nhi\u1ec1u t\u1ed5 ch\u1ee9c ti\u00eau chu\u1ea9n qu\u1ed1c gia c\u00f4ng b\u1ed1) ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00e0 cung c\u1ea5p l\u1edbp ph\u1ee7 c\u00f3 chuy\u00ean m\u00f4n trong khu v\u1ef1c. VIOX c\u00f3 th\u1ec3 t\u01b0 v\u1ea5n d\u1ef1a tr\u00ean v\u1ecb tr\u00ed v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u01a1 s\u1edf c\u1ee7a b\u1ea1n.<\/p>\n<h3>C\u00e2u h\u1ecfi 3: T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng C3 trong m\u00f4i tr\u01b0\u1eddng C5 v\u00e0 ti\u1ebft ki\u1ec7m ti\u1ec1n kh\u00f4ng?<\/h3>\n<p>V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, th\u00ec c\u00f3. V\u1ec1 m\u1eb7t th\u1ef1c t\u1ebf, th\u00ec kh\u00f4ng. M\u1ed9t h\u1ec7 th\u1ed1ng C3 (DFT 260 \u00b5m, 3 l\u1edbp s\u01a1n) s\u1ebd xu\u1ea5t hi\u1ec7n r\u1ec9 s\u00e9t nghi\u00eam tr\u1ecdng v\u00e0 c\u1ea7n b\u1ea3o tr\u00ec trong v\u00f2ng 1\u20132 n\u0103m trong m\u00f4i tr\u01b0\u1eddng C5 (trong khi k\u1ef3 v\u1ecdng c\u01a1 b\u1ea3n l\u00e0 5+ n\u0103m). Kho\u1ea3n ti\u1ebft ki\u1ec7m ban \u0111\u1ea7u s\u1ebd bi\u1ebfn m\u1ea5t do chi ph\u00ed nh\u00e2n c\u00f4ng s\u01a1n l\u1ea1i v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. H\u00e3y ch\u1ec9 \u0111\u1ecbnh \u0111\u00fang lo\u1ea1i ngay t\u1eeb \u0111\u1ea7u.<\/p>\n<h3>C\u00e2u h\u1ecfi 4: DFT l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng?<\/h3>\n<p>\u0110\u1ed9 d\u00e0y m\u00e0ng kh\u00f4 (DFT) l\u00e0 \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 sau khi kh\u00f4, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng micromet. N\u00f3 l\u00e0 <strong>y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n<\/strong>. M\u00e0ng c\u00e0ng d\u00e0y th\u00ec kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a r\u1ec9 s\u00e9t c\u00e0ng l\u00e2u. DFT \u0111\u01b0\u1ee3c x\u00e1c minh trong qu\u00e1 tr\u00ecnh thi c\u00f4ng b\u1eb1ng th\u01b0\u1edbc \u0111o \u0111\u1ed9 d\u00e0y m\u00e0ng \u01b0\u1edbt v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn sau khi \u0111\u00f3ng r\u1eafn b\u1eb1ng th\u01b0\u1edbc \u0111o \u0111\u1ed9 d\u00e0y m\u00e0ng kh\u00f4. Ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7.<\/p>\n<h3>C\u00e2u h\u1ecfi 5: T\u00f4i n\u00ean ki\u1ec3m tra thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 bao l\u00e2u m\u1ed9t l\u1ea7n?<\/h3>\n<p><strong>M\u00f4i tr\u01b0\u1eddng C1:<\/strong> C\u1ee9 3\u20135 n\u0103m m\u1ed9t l\u1ea7n.<br \/>\n<strong>M\u00f4i tr\u01b0\u1eddng C2\u2013C3:<\/strong> C\u1ee9 1\u20132 n\u0103m m\u1ed9t l\u1ea7n.<br \/>\n<strong>M\u00f4i tr\u01b0\u1eddng C4\u2013CX:<\/strong> H\u00e0ng n\u0103m ho\u1eb7c hai n\u0103m m\u1ed9t l\u1ea7n.<\/p>\n<p>Ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf, m\u1ea5t \u0111\u1ed9 b\u00e1m d\u00ednh ho\u1eb7c r\u1ec9 s\u00e9t cho ph\u00e9p s\u1eeda ch\u1eefa c\u1ee5c b\u1ed9 tr\u01b0\u1edbc khi c\u1ea7n b\u1ea3o tr\u00ec l\u1edbn. Ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd l\u1edbp ph\u1ee7 v\u00e0 gi\u1ea3m t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu.<\/p>\n<hr \/>\n<h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n<p><strong>ISO 12944 l\u00e0 m\u1ed9t khu\u00f4n kh\u1ed5 hai tr\u1ee5c:<\/strong> c\u1ea5p \u0111\u1ed9 \u0103n m\u00f2n (C1\u2013CX) x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a m\u00f4i tr\u01b0\u1eddng; c\u1ea5p \u0111\u1ed9 b\u1ec1n (L, M, H, VH) x\u00e1c \u0111\u1ecbnh kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec.<\/p>\n<p><strong>Hi\u1ec3u r\u00f5 m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n:<\/strong> Ph\u00e2n lo\u1ea1i sai m\u1ed9t c\u01a1 s\u1edf C4 ven bi\u1ec3n th\u00e0nh C3 d\u1eabn \u0111\u1ebfn h\u1ecfng h\u00f3c s\u1edbm v\u00e0 s\u01a1n l\u1ea1i kh\u1ea9n c\u1ea5p t\u1ed1n k\u00e9m. S\u1eed d\u1ee5ng b\u1ea3n \u0111\u1ed3 \u0103n m\u00f2n khu v\u1ef1c v\u00e0 chuy\u00ean m\u00f4n \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n<p><strong>DFT l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n:<\/strong> L\u1edbp ph\u1ee7 c\u00e0ng d\u00e0y th\u00ec tu\u1ed5i th\u1ecd c\u00e0ng cao. Ch\u1ec9 \u0111\u1ecbnh DFT ch\u00ednh x\u00e1c ngay t\u1eeb \u0111\u1ea7u; kh\u00f4ng th\u1ecfa hi\u1ec7p trong qu\u00e1 tr\u00ecnh thi c\u00f4ng. X\u00e1c minh th\u00f4ng qua ki\u1ec3m tra tr\u01b0\u1edbc khi nghi\u1ec7m thu.<\/p>\n<p><strong>H\u1ec7 th\u1ed1ng nhi\u1ec1u l\u1edbp \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt:<\/strong> M\u1ed7i l\u1edbp\u2014l\u1edbp l\u00f3t, l\u1edbp trung gian, l\u1edbp ph\u1ee7 ngo\u00e0i\u2014ph\u1ee5c v\u1ee5 m\u1ed9t ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3. Kh\u00f4ng thay th\u1ebf; t\u00ednh to\u00e0n v\u1eb9n ph\u1ee5 thu\u1ed9c v\u00e0o to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p><strong>\u0110\u1ed9 b\u1ec1n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 l\u1eadp k\u1ebf ho\u1ea1ch:<\/strong> S\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 \u0111\u1eb7t ra c\u00e1c khung th\u1eddi gian v\u00e0 ng\u00e2n s\u00e1ch b\u1ea3o tr\u00ec, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1eddi h\u1ee9a b\u1ea3o h\u00e0nh. T\u1ea7n su\u1ea5t b\u1ea3o tr\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c ph\u00e2n lo\u1ea1i ch\u00ednh x\u00e1c.<\/p>\n<p><strong>Ph\u1ea1m vi r\u00f5 r\u00e0ng\u2014ISO 12944 \u00e1p d\u1ee5ng cho th\u00e9p k\u1ebft c\u1ea5u v\u00e0 th\u00e2n v\u1ecf, KH\u00d4NG \u00e1p d\u1ee5ng cho c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n b\u00ean trong:<\/strong> Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh h\u1ec7 th\u1ed1ng s\u01a1n cho k\u1ebft c\u1ea5u th\u00e9p v\u00e0 b\u00ean ngo\u00e0i t\u1ee7 \u0111i\u1ec7n. C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n ri\u00eang l\u1ebb b\u00ean trong t\u1ee7 \u0111i\u1ec7n (kh\u1ed1i \u0111\u1ea7u cu\u1ed1i, MCB, contactor) d\u1ef1a tr\u00ean m\u1ea1 \u0111i\u1ec7n (thi\u1ebfc, b\u1ea1c, v\u00e0ng), l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u (th\u00e9p kh\u00f4ng g\u1ec9, PA66) v\u00e0 v\u1ecf k\u00edn (x\u1ebfp h\u1ea1ng IP), tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 IEC 60068-2-11 v\u00e0 x\u1ebfp h\u1ea1ng NEMA Type. Nh\u1ea7m l\u1eabn hai chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 n\u00e0y l\u00e0 m\u1ed9t l\u1ed7i \u0111\u1eb7c t\u1ea3 ph\u1ed5 bi\u1ebfn m\u00e0 c\u00e1c k\u1ef9 s\u01b0 \u0111i\u1ec7n c\u00f3 kinh nghi\u1ec7m s\u1ebd nh\u1eadn ra ngay l\u1eadp t\u1ee9c.<\/p>\n<p><strong>Thi\u1ebft k\u1ebf t\u1ee7 \u0111i\u1ec7n l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng hai c\u1ea5p:<\/strong> Nh\u1eefng <strong>th\u00e2n v\u1ecf<\/strong> tu\u00e2n theo ISO 12944 (s\u01a1n\/l\u1edbp ph\u1ee7), t\u1ea1o ra m\u1ed9t h\u00e0ng r\u00e0o b\u1ea3o v\u1ec7. <strong>th\u00e0nh ph\u1ea7n b\u00ean trong<\/strong> tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n \u0111i\u1ec7n (m\u1ea1\/v\u1eadt li\u1ec7u\/ni\u00eam phong), b\u1ea3o v\u1ec7 c\u00e1c ph\u1ea7n t\u1eed d\u1eabn \u0111i\u1ec7n th\u1ef1c t\u1ebf. C\u1ea3 hai ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ch\u00ednh x\u00e1c, nh\u01b0ng ch\u00fang l\u00e0 nh\u1eefng h\u1ec7 th\u1ed1ng ho\u00e0n to\u00e0n kh\u00e1c nhau.<\/p>\n<p><strong>S\u1ea3n ph\u1ea9m VIOX v\u00e0 ISO 12944:<\/strong> VIOX <a href=\"https:\/\/test.viox.com\/vi\/cable-gland\/\">\u0111\u1ea7u n\u1ed1i c\u00e1p<\/a> v\u00e0 c\u00e1c \u0111\u1ea7u n\u1ed1i ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf ranh gi\u1edbi\u2014l\u1eafp xuy\u00ean qua c\u00e1c b\u1ee9c t\u01b0\u1eddng t\u1ee7 \u0111\u01b0\u1ee3c s\u01a1n theo ti\u00eau chu\u1ea9n ISO 12944. Trong b\u1ed1i c\u1ea3nh \u0111\u00f3, c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ea7u v\u00e0o n\u00e0y \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh theo IEC 60068-2-11 (th\u1eed nghi\u1ec7m phun mu\u1ed1i) v\u00e0 x\u1ebfp h\u1ea1ng IP. VIOX <a href=\"https:\/\/test.viox.com\/vi\/terminal-block\/\">kh\u1ed1i thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">C\u00f4ng<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/modular-contactor\/\">c\u00e1c ti\u1ebfp \u0111i\u1ec3m<\/a>, V\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/din-rail\/\">DIN<\/a> b\u00ean trong t\u1ee7 \u0111i\u1ec7n tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n ri\u00eang c\u1ee7a ch\u00fang (m\u1ea1 c\u1ea5p th\u00e0nh ph\u1ea7n, v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac, v\u1ecf k\u00edn)\u2014kh\u00f4ng ph\u1ea3i ISO 12944.<\/p>\n<hr \/>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>\u0102n m\u00f2n kh\u00f4ng t\u1ef1 th\u00f4ng b\u00e1o. V\u00e0o th\u1eddi \u0111i\u1ec3m r\u1ec9 s\u00e9t c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y xu\u1ea5t hi\u1ec7n, thi\u1ec7t h\u1ea1i \u0111\u00e3 x\u1ea3y ra. ISO 12944 bi\u1ebfn s\u1ef1 ph\u1ecfng \u0111o\u00e1n th\u00e0nh \u0111\u1ed9 ch\u00ednh x\u00e1c, cung c\u1ea5p cho b\u1ea1n m\u1ed9t khu\u00f4n kh\u1ed5 c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh c\u00e1c l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 ng\u00e2n s\u00e1ch c\u1ee7a b\u1ea1n.<\/p>\n<p>Cho d\u00f9 b\u1ea1n \u0111ang b\u1ea3o v\u1ec7 m\u1ed9t nh\u00e0 kho n\u00f4ng th\u00f4n C2 khi\u00eam t\u1ed1n hay m\u1ed9t n\u1ec1n t\u1ea3ng ngo\u00e0i kh\u01a1i C5, ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p m\u1ed9t l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng: \u0111o l\u01b0\u1eddng m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n, ch\u1ecdn c\u1ea5p \u0111\u1ed9 b\u1ec1n c\u1ee7a b\u1ea1n, ch\u1ec9 \u0111\u1ecbnh h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7, ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m th\u00edch h\u1ee3p v\u00e0 x\u00e1c minh DFT t\u1ea1i \u1ee9ng d\u1ee5ng. K\u1ebft qu\u1ea3: thi\u1ebft b\u1ecb t\u1ed3n t\u1ea1i\u2014v\u00e0 ph\u00e1t tri\u1ec3n\u2014trong su\u1ed1t tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf d\u1ef1 ki\u1ebfn c\u1ee7a n\u00f3.<\/p>\n<p>C\u1ea7n h\u01b0\u1edbng d\u1eabn ch\u1ec9 \u0111\u1ecbnh b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a b\u1ea1n? C\u00e1c k\u1ef9 s\u01b0 VIOX c\u00f3 th\u1ec3 gi\u00fap \u0111i\u1ec1u ch\u1ec9nh c\u00e1c y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c danh m\u1ee5c ISO 12944 v\u00e0 \u0111\u1ec1 xu\u1ea5t <a href=\"https:\/\/test.viox.com\/vi\/terminal-block\/\">kh\u1ed1i thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/cable-gland\/\">gi\u1ea3i ph\u00e1p c\u00e1p<\/a>, V\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/ac-contactor\/\">c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n<\/a> ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n. <a href=\"https:\/\/test.viox.com\/vi\/contact\/\">Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1131.63px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1131.63px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Figure 1: The impact of environmental stress \u2014 a rusted electrical cabinet showing coating failure after 3-4 years in a C4 coastal zone. Introduction Metal components in electrical systems are under siege. Humidity creeps in. Salt spray corrodes. Industrial atmospheres accelerate degradation. Without proper protection, corrosion transforms reliable equipment into costly failures. This is where [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21412,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=21411"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21411\/revisions"}],"predecessor-version":[{"id":21414,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21411\/revisions\/21414"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/21412"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=21411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=21411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=21411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}