{"id":21586,"date":"2019-04-17T21:50:05","date_gmt":"2019-04-17T14:50:05","guid":{"rendered":"https:\/\/www.baohoxanh.com\/blog\/?p=21586"},"modified":"2026-09-04T13:46:11","modified_gmt":"2026-09-04T06:46:11","slug":"op-tai-chong-on-bao-ve-doi-tai-ban-an-toan-tai-me-tri","status":"publish","type":"post","link":"https:\/\/www.baohoxanh.com\/blog\/op-tai-chong-on-bao-ve-doi-tai-ban-an-toan-tai-me-tri\/","title":{"rendered":"\u1ed0p Tai Ch\u1ed1ng \u1ed2n G\u1eafn M\u0169 B\u1ea3o H\u1ed9 Cho C\u00f4ng Tr\u01b0\u1eddng T\u1ea1i M\u1ec5 Tr\u00ec"},"content":{"rendered":"<p>Tr\u00ean c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng, ng\u01b0\u1eddi lao \u0111\u1ed9ng ph\u1ea3i \u0111\u1ed9i m\u0169 b\u1ea3o h\u1ed9 su\u1ed1t ca \u2013 v\u00e0 \u0111\u00f3 c\u0169ng l\u00e0 l\u00fac ch\u1ecdn \u1ed1p tai ch\u1ed1ng \u1ed3n tr\u1edf n\u00ean r\u1eafc r\u1ed1i, v\u00ec ki\u1ec3u \u0111ai \u0111\u1ed9i \u0111\u1ea7u th\u00f4ng th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111eo c\u00f9ng m\u0169 c\u1ee9ng. \u1ed0p tai g\u1eafn m\u0169 b\u1ea3o h\u1ed9 (helmet-mounted) sinh ra \u0111\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u00fang b\u00e0i to\u00e1n \u0111\u00f3: c\u1ed1c ch\u1ed1ng \u1ed3n l\u1eafp tr\u1ef1c ti\u1ebfp v\u00e0o khe b\u00ean h\u00f4ng m\u0169, l\u1eadt l\u00ean khi ngh\u1ec9 v\u00e0 h\u1ea1 xu\u1ed1ng khi v\u00e0o v\u00f9ng \u1ed3n. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o c\u1ea5u t\u1ea1o ng\u00e0m g\u1eafn, ti\u00eau chu\u1ea9n EN 352-3, c\u00e1ch \u0111\u1ecdc SNR\/NRR v\u00e0 nguy\u00ean t\u1eafc ch\u1ecdn gi\u1eefa \u1ed1p tai v\u00e0 n\u00fat tai theo m\u1ee9c \u1ed3n \u2013 th\u1eddi gian \u0111eo.<\/p>\n<h2>\u1ed0p Tai G\u1eafn M\u0169 B\u1ea3o H\u1ed9 L\u00e0 G\u00ec V\u00e0 Khi N\u00e0o N\u00ean D\u00f9ng<\/h2>\n<p>\u0110\u00e2y l\u00e0 bi\u1ebfn th\u1ec3 c\u1ee7a \u1ed1p tai ch\u1ed1ng \u1ed3n, thay v\u00ec c\u00f3 g\u1ecdng th\u00e9p v\u00f2ng qua \u0111\u1ec9nh \u0111\u1ea7u th\u00ec hai c\u1ed1c ch\u1ed1ng \u1ed3n \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o hai c\u00e1nh tay \u0111\u00f2n c\u00f3 l\u00f2 xo, c\u1eafm v\u00e0o khe (slot) hai b\u00ean v\u00e0nh m\u0169 b\u1ea3o h\u1ed9. Khe ti\u00eau chu\u1ea9n c\u1ee7a \u0111a s\u1ed1 m\u0169 c\u00f4ng nghi\u1ec7p r\u1ed9ng <strong>30 mm<\/strong>, n\u00ean ph\u1ea7n l\u1edbn \u1ed1p tai g\u1eafn m\u0169 tr\u00ean th\u1ecb tr\u01b0\u1eddng d\u00f9ng ng\u00e0m 30 mm.<\/p>\n<p>N\u00ean \u01b0u ti\u00ean lo\u1ea1i g\u1eafn m\u0169 trong c\u00e1c t\u00ecnh hu\u1ed1ng sau:<\/p>\n<ul>\n<li>C\u00f4ng vi\u1ec7c b\u1eaft bu\u1ed9c \u0111\u1ed9i m\u0169 c\u1ee9ng li\u00ean t\u1ee5c: x\u00e2y d\u1ef1ng, l\u1eafp d\u1ef1ng k\u1ebft c\u1ea5u th\u00e9p, khai th\u00e1c \u0111\u00e1, x\u01b0\u1edfng \u0111\u00fac.<\/li>\n<li>Ng\u01b0\u1eddi lao \u0111\u1ed9ng ra v\u00e0o v\u00f9ng \u1ed3n nhi\u1ec1u l\u1ea7n trong ca \u2013 c\u1ea7n l\u1eadt l\u00ean h\u1ea1 xu\u1ed1ng nhanh m\u00e0 kh\u00f4ng ph\u1ea3i th\u00e1o m\u0169.<\/li>\n<li>M\u00f4i tr\u01b0\u1eddng b\u1ee5i b\u1ea9n, tay d\u00ednh d\u1ea7u m\u1ee1 \u2013 n\u01a1i vi\u1ec7c nh\u00e9t n\u00fat tai b\u1eb1ng ng\u00f3n tay b\u1ea9n l\u00e0 r\u1ee7i ro nhi\u1ec5m khu\u1ea9n \u1ed1ng tai.<\/li>\n<li>C\u1ea7n \u0111eo \u0111\u1ed3ng th\u1eddi k\u00ednh b\u1ea3o h\u1ed9 ho\u1eb7c t\u1ea5m che m\u1eb7t g\u1eafn tr\u00ean m\u0169.<\/li>\n<\/ul>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu c\u00f4ng vi\u1ec7c kh\u00f4ng \u0111\u1ed9i m\u0169 c\u1ee9ng th\u00ec b\u1ea3n \u0111ai \u0111\u1ed9i \u0111\u1ea7u ho\u1eb7c \u0111ai sau g\u00e1y v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf h\u01a1n \u2013 tham kh\u1ea3o th\u00eam nh\u00f3m <a href=\"https:\/\/www.baohoxanh.com\/bit-tai-chong-on\">\u1ed1p tai ch\u1ed1ng \u1ed3n<\/a> \u0111\u1ec3 so s\u00e1nh c\u00e1c ki\u1ec3u \u0111eo.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2015\/11\/op-tai-chong-on-je-201.jpg\" alt=\"\u1ed0p tai ch\u1ed1ng \u1ed3n v\u1edbi c\u1ed1c nh\u1ef1a v\u00e0 \u0111\u1ec7m tai b\u1ea3n r\u1ed9ng\" loading=\"lazy\" width=\"1200\" height=\"1200\" title=\"\"><\/p>\n<h2>C\u1ea5u T\u1ea1o C\u1ee7a M\u1ed9t B\u1ed9 \u1ed0p Tai G\u1eafn M\u0169<\/h2>\n<h3>Ng\u00e0m G\u1eafn V\u00e0 C\u00e1nh Tay \u0110\u00f2n<\/h3>\n<p>Ng\u00e0m nh\u1ef1a k\u1ef9 thu\u1eadt c\u1eafm v\u00e0o khe 30 mm tr\u00ean v\u00e0nh m\u0169, c\u00e1nh tay \u0111\u00f2n b\u1eb1ng th\u00e9p l\u00f2 xo b\u1ecdc nh\u1ef1a t\u1ea1o l\u1ef1c \u00e9p \u00e1p c\u1ed1c v\u00e0o v\u00e0nh tai. L\u1ef1c \u00e9p n\u00e0y l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 gi\u1ea3m \u1ed3n: qu\u00e1 y\u1ebfu s\u1ebd h\u1edf \u00e2m, qu\u00e1 m\u1ea1nh g\u00e2y \u0111au th\u00e1i d\u01b0\u01a1ng sau v\u00e0i gi\u1edd. C\u00e1c m\u1eabu t\u1ed1t c\u00f3 ba n\u1ea5c v\u1ecb tr\u00ed r\u00f5 r\u00e0ng: <em>l\u00e0m vi\u1ec7c<\/em> (\u00e1p s\u00e1t tai), <em>ch\u1edd<\/em> (\u1ed1p h\u1edd s\u00e1t m\u00e1 m\u0169) v\u00e0 <em>c\u1ea5t<\/em> (l\u1eadt h\u1eb3n l\u00ean tr\u00ean).<\/p>\n<h3>C\u1ed1c Ch\u1ed1ng \u1ed2n V\u00e0 \u0110\u1ec7m Tai<\/h3>\n<p>C\u1ed1c nh\u1ef1a ABS c\u00e1ch \u00e2m b\u00ean ngo\u00e0i, b\u00ean trong l\u00e0 m\u00fat h\u1ea5p th\u1ee5 \u00e2m t\u1ea7n s\u1ed1 cao. Vi\u1ec1n ti\u1ebfp x\u00fac l\u00e0 \u0111\u1ec7m b\u1ecdt PVC ho\u1eb7c \u0111\u1ec7m gel; \u0111\u1ec7m gel m\u1ec1m h\u01a1n, k\u00edn h\u01a1n v\u00e0 m\u00e1t h\u01a1n khi l\u00e0m vi\u1ec7c ngo\u00e0i tr\u1eddi n\u1eafng n\u00f3ng mi\u1ec1n B\u1eafc \u2013 \u0111i\u1ec3m \u0111\u00e1ng \u0111\u1ea7u t\u01b0 th\u00eam v\u1edbi ca 8 gi\u1edd. B\u1ec1 m\u1eb7t \u0111\u1ec7m r\u1ed9ng gi\u00fap ph\u00e2n b\u1ed5 \u00e1p l\u1ef1c, gi\u1ea3m c\u1ea3m gi\u00e1c t\u00ec \u0111\u00e8 quanh v\u00e0nh tai.<\/p>\n<h3>Kh\u1ea3 N\u0103ng \u0110i\u1ec1u Ch\u1ec9nh<\/h3>\n<p>C\u1ed1c ph\u1ea3i tr\u01b0\u1ee3t l\u00ean xu\u1ed1ng \u0111\u01b0\u1ee3c theo nhi\u1ec1u n\u1ea5c v\u00e0 xoay nh\u1eb9 theo tr\u1ee5c nghi\u00eang (earcup pivot) \u0111\u1ec3 \u00f4m tr\u1ecdn v\u00e0nh tai \u1edf nhi\u1ec1u h\u00ecnh d\u1ea1ng \u0111\u1ea7u kh\u00e1c nhau. Khi trang b\u1ecb cho c\u1ea3 t\u1ed5, h\u00e3y ki\u1ec3m tra \u1edf ng\u01b0\u1eddi c\u00f3 \u0111\u1ea7u nh\u1ecf nh\u1ea5t v\u00e0 l\u1edbn nh\u1ea5t \u2013 n\u1ebfu c\u1ea3 hai \u0111\u1ec1u \u00f4m k\u00edn th\u00ec m\u1eabu \u0111\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 mua s\u1ed1 l\u01b0\u1ee3ng l\u1edbn.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/03\/op-tai-chong-on-pc-03em.jpg\" alt=\"C\u1eadn c\u1ea3nh c\u00e1nh tay \u0111\u00f2n v\u00e0 ng\u00e0m g\u1eafn c\u1ee7a \u1ed1p tai ch\u1ed1ng \u1ed3n\" loading=\"lazy\" width=\"500\" height=\"500\" title=\"\"><\/p>\n<h2>Ti\u00eau Chu\u1ea9n EN 352-3 V\u00e0 C\u00e1ch \u0110\u1ecdc Th\u00f4ng S\u1ed1 Gi\u1ea3m \u1ed2n<\/h2>\n<p>B\u1ed9 ti\u00eau chu\u1ea9n ch\u00e2u \u00c2u EN 352 chia theo ki\u1ec3u \u0111eo, v\u00e0 \u0111\u00e2y l\u00e0 \u0111i\u1ec3m nhi\u1ec1u ng\u01b0\u1eddi mua nh\u1ea7m:<\/p>\n<ul>\n<li><strong>EN 352-1<\/strong> \u2013 \u1ed1p tai c\u00f3 \u0111ai \u0111\u1ed9i \u0111\u1ea7u ho\u1eb7c \u0111ai sau g\u00e1y.<\/li>\n<li><strong>EN 352-2<\/strong> \u2013 n\u00fat tai (d\u1ea1ng nh\u00e9t, c\u00f3 d\u00e2y ho\u1eb7c kh\u00f4ng d\u00e2y).<\/li>\n<li><strong>EN 352-3<\/strong> \u2013 \u1ed1p tai g\u1eafn tr\u00ean m\u0169 b\u1ea3o h\u1ed9 ho\u1eb7c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 m\u1eb7t. L\u1ef1c \u00e9p \u1edf \u0111\u00e2y do ch\u00ednh k\u1ebft c\u1ea5u m\u0169 t\u1ea1o ra, n\u00ean s\u1ea3n ph\u1ea9m ph\u1ea3i \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m <em>c\u00f9ng m\u1eabu m\u0169 c\u1ee5 th\u1ec3<\/em>.<\/li>\n<\/ul>\n<p>H\u1ec7 qu\u1ea3 th\u1ef1c t\u1ebf: m\u1ed9t b\u1ed9 \u1ed1p tai ch\u1ec9 \u0111\u01b0\u1ee3c coi l\u00e0 \u0111\u1ea1t EN 352-3 khi l\u1eafp v\u1edbi danh s\u00e1ch m\u0169 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn k\u00e8m. G\u1eafn \u1ed1p tai c\u1ee7a h\u00e3ng A v\u00e0o m\u0169 c\u1ee7a h\u00e3ng B kh\u00f4ng n\u1eb1m trong danh s\u00e1ch t\u01b0\u01a1ng th\u00edch th\u00ec s\u1ed1 li\u1ec7u gi\u1ea3m \u1ed3n c\u00f4ng b\u1ed1 kh\u00f4ng c\u00f2n gi\u00e1 tr\u1ecb. Khi \u0111\u1eb7t h\u00e0ng, h\u00e3y y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n r\u1eb1ng \u1ed1p tai t\u01b0\u01a1ng th\u00edch v\u1edbi \u0111\u00fang d\u00f2ng <a href=\"https:\/\/www.baohoxanh.com\/mu-bao-ho\">m\u0169 b\u1ea3o h\u1ed9 lao \u0111\u1ed9ng<\/a> m\u00e0 nh\u00e0 m\u00e1y \u0111ang d\u00f9ng.<\/p>\n<p>V\u1ec1 con s\u1ed1 gi\u1ea3m \u1ed3n:<\/p>\n<ul>\n<li><strong>SNR<\/strong> (Single Number Rating, ch\u00e2u \u00c2u) v\u00e0 <strong>NRR<\/strong> (M\u1ef9) \u0111\u1ec1u l\u00e0 gi\u00e1 tr\u1ecb gi\u1ea3m \u1ed3n g\u1ed9p, t\u00ednh theo hai ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau n\u00ean kh\u00f4ng so s\u00e1nh tr\u1ef1c ti\u1ebfp \u0111\u01b0\u1ee3c.<\/li>\n<li><strong>H\/M\/L<\/strong> l\u00e0 m\u1ee9c gi\u1ea3m \u1ed3n \u1edf t\u1ea7n s\u1ed1 cao \u2013 trung \u2013 th\u1ea5p. Ti\u1ebfng \u1ed3n m\u00e1y n\u00e9n, m\u00e1y ph\u00e1t \u0111i\u1ec7n thi\u00ean v\u1ec1 t\u1ea7n th\u1ea5p n\u00ean c\u1ea7n ch\u1ec9 s\u1ed1 L t\u1ed1t; ti\u1ebfng m\u00e1y c\u1eaft, m\u00e0i, kh\u00ed n\u00e9n x\u1ea3 thi\u00ean t\u1ea7n cao \u2013 ch\u1ec9 s\u1ed1 H quan tr\u1ecdng h\u01a1n.<\/li>\n<li>M\u1ee9c \u1ed3n c\u00f2n l\u1ea1i \u01b0\u1edbc t\u00ednh \u2248 m\u1ee9c \u1ed3n m\u00f4i tr\u01b0\u1eddng tr\u1eeb SNR. M\u1ee5c ti\u00eau l\u00e0 \u0111\u01b0a v\u1ec1 kho\u1ea3ng <strong>70\u201380 dB(A)<\/strong> \u2013 kh\u00f4ng ph\u1ea3i c\u00e0ng th\u1ea5p c\u00e0ng t\u1ed1t, v\u00ec gi\u1ea3m qu\u00e1 s\u00e2u (d\u01b0\u1edbi 70 dB) khi\u1ebfn ng\u01b0\u1eddi lao \u0111\u1ed9ng kh\u00f4ng nghe \u0111\u01b0\u1ee3c c\u1ea3nh b\u00e1o, ti\u1ebfng xe l\u00f9i, ti\u1ebfng \u0111\u1ed3ng \u0111\u1ed9i g\u1ecdi \u2013 g\u00e2y m\u1ea5t an to\u00e0n ng\u01b0\u1ee3c.<\/li>\n<\/ul>\n<p>T\u1ea1i Vi\u1ec7t Nam, gi\u1edbi h\u1ea1n ti\u1ebfp x\u00fac ti\u1ebfng \u1ed3n theo QCVN 24:2016\/BYT l\u00e0 85 dB(A) cho ca 8 gi\u1edd; v\u01b0\u1ee3t ng\u01b0\u1ee1ng n\u00e0y b\u1eaft bu\u1ed9c ph\u1ea3i trang b\u1ecb ph\u01b0\u01a1ng ti\u1ec7n b\u1ea3o v\u1ec7 th\u00ednh gi\u00e1c.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/02\/nut-tai-chong-on.jpg\" alt=\"N\u00fat tai ch\u1ed1ng \u1ed3n d\u1ea1ng nh\u00e9t d\u00f9ng song song v\u1edbi \u1ed1p tai trong nh\u00e0 m\u00e1y\" loading=\"lazy\" width=\"512\" height=\"512\" title=\"\"><\/p>\n<p>B\u1ea3ng ch\u1ecdn \u0111\u00e3 c\u00f3 s\u1eb5n, v\u00e0 n\u00f3 \u0111i ng\u01b0\u1ee3c tr\u1ef1c gi\u00e1c mua h\u00e0ng. <a href=\"https:\/\/www.hse.gov.uk\/noise\/hearingprotection.htm\" target=\"_blank\" rel=\"noopener nofollow\">H\u01b0\u1edbng d\u1eabn v\u1ec1 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 th\u00ednh l\u1ef1c c\u1ee7a C\u01a1 quan An to\u00e0n v\u00e0 S\u1ee9c kh\u1ecfe Anh<\/a> gh\u00e9p m\u1ee9c \u1ed3n v\u1edbi d\u1ea3i SNR n\u00ean ch\u1ecdn: 85\u201390 dB l\u1ea5y SNR t\u1eeb 20 tr\u1edf xu\u1ed1ng, 90\u201395 dB l\u1ea5y 20\u201330, 95\u2013100 dB l\u1ea5y 25\u201335, ch\u1ec9 t\u1eeb 100 dB tr\u1edf l\u00ean m\u1edbi l\u1ea5y SNR t\u1eeb 30. M\u1ee5c ti\u00eau l\u00e0 k\u00e9o m\u1ee9c t\u1ea1i tai v\u1ec1 kho\u1ea3ng 70\u201380 dB, kh\u00f4ng ph\u1ea3i xu\u1ed1ng th\u1ea5p nh\u1ea5t c\u00f3 th\u1ec3. H\u01b0\u1edbng d\u1eabn n\u00f3i r\u00f5 l\u00fd do: \u00e9p m\u1ee9c t\u1ea1i tai xu\u1ed1ng d\u01b0\u1edbi 70 dB khi\u1ebfn ng\u01b0\u1eddi \u0111eo kh\u00f4ng nghe \u0111\u01b0\u1ee3c ti\u1ebfng g\u1ecdi v\u00e0 ti\u1ebfng c\u00f2i c\u1ea3nh b\u00e1o, v\u00e0 ng\u01b0\u1eddi b\u1ecb c\u00f4 l\u1eadp nh\u01b0 v\u1eady th\u01b0\u1eddng t\u1ef1 th\u00e1o b\u1ed9 \u1ed1p ra gi\u1eefa ca.<\/p>\n<h2>\u1ed0p Tai Hay N\u00fat Tai: Ch\u1ecdn Theo M\u1ee9c \u1ed2n V\u00e0 Th\u1eddi Gian \u0110eo<\/h2>\n<p>Hai lo\u1ea1i n\u00e0y kh\u00f4ng thay th\u1ebf nhau m\u00e0 b\u1ed5 sung cho nhau. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft nguy\u00ean t\u1eafc ch\u1ecdn m\u00e0 c\u00e1n b\u1ed9 an to\u00e0n c\u00f3 th\u1ec3 d\u00f9ng ngay:<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ecnh hu\u1ed1ng<\/th>\n<th>N\u00ean d\u00f9ng<\/th>\n<th>L\u00fd do<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ra v\u00e0o v\u00f9ng \u1ed3n nhi\u1ec1u l\u1ea7n, \u0111\u1ed9i m\u0169 c\u1ee9ng c\u1ea3 ca<\/td>\n<td>\u1ed0p tai g\u1eafn m\u0169<\/td>\n<td>L\u1eadt l\u00ean h\u1ea1 xu\u1ed1ng trong 1 gi\u00e2y, kh\u00f4ng ph\u1ea3i th\u00e1o m\u0169<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ee9ng m\u1ed9t v\u1ecb tr\u00ed su\u1ed1t ca, nhi\u1ec7t \u0111\u1ed9 cao, \u1ed3n \u0111\u1ec1u<\/td>\n<td>N\u00fat tai<\/td>\n<td>Nh\u1eb9, kh\u00f4ng b\u00ed n\u00f3ng quanh tai, \u0111eo li\u00ean t\u1ee5c d\u1ec5 ch\u1ecbu h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u1ed2n r\u1ea5t l\u1edbn tr\u00ean 100 dB(A), b\u00faa h\u01a1i, \u0111\u1ee5c ph\u00e1<\/td>\n<td>K\u1ebft h\u1ee3p c\u1ea3 hai (dual protection)<\/td>\n<td>C\u1ed9ng th\u00eam kho\u1ea3ng 5\u20136 dB so v\u1edbi d\u00f9ng ri\u00eang lo\u1ea1i t\u1ed1t nh\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>Ng\u01b0\u1eddi vi\u00eam \u1ed1ng tai, hay ra m\u1ed3 h\u00f4i, m\u00f4i tr\u01b0\u1eddng b\u1ee5i b\u1ea9n<\/td>\n<td>\u1ed0p tai<\/td>\n<td>Kh\u00f4ng \u0111\u01b0a v\u1eadt th\u1ec3 v\u00e0o \u1ed1ng tai, gi\u1ea3m nguy c\u01a1 nhi\u1ec5m khu\u1ea9n<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00e1ch tham quan, nh\u00e2n vi\u00ean v\u0103n ph\u00f2ng v\u00e0o x\u01b0\u1edfng ng\u1eafn<\/td>\n<td>N\u00fat tai d\u00f9ng m\u1ed9t l\u1ea7n<\/td>\n<td>Chi ph\u00ed th\u1ea5p, ph\u00e1t nhanh, kh\u00f4ng c\u1ea7n v\u1ec7 sinh t\u00e1i s\u1eed d\u1ee5ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Th\u1ef1c t\u1ebf nhi\u1ec1u nh\u00e0 m\u00e1y trang b\u1ecb song song: \u1ed1p tai g\u1eafn m\u0169 cho t\u1ed5 thi c\u00f4ng ngo\u00e0i hi\u1ec7n tr\u01b0\u1eddng, c\u00f2n <a href=\"https:\/\/www.baohoxanh.com\/nut-tai-chong-on\">n\u00fat tai ch\u1ed1ng \u1ed3n<\/a> ph\u00e1t th\u00eam cho ca \u0111\u00eam v\u00e0 kh\u00e1ch ra v\u00e0o. To\u00e0n b\u1ed9 c\u00e1c gi\u1ea3i ph\u00e1p <a href=\"https:\/\/www.baohoxanh.com\/bao-ho-tai\">b\u1ea3o h\u1ed9 tai<\/a> \u0111\u1ec1u n\u00ean \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u1ed9t k\u1ebf ho\u1ea1ch ki\u1ec3m so\u00e1t ti\u1ebfng \u1ed3n th\u1ed1ng nh\u1ea5t thay v\u00ec mua l\u1ebb theo t\u1eebng t\u1ed5.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/04\/op-tai-chong-on-cao-cap-1.jpg\" alt=\"\u0110\u1ec7m tai b\u1eb1ng b\u1ecdt m\u1ec1m c\u1ea7n thay \u0111\u1ecbnh k\u1ef3 khi c\u1ee9ng l\u1ea1i ho\u1eb7c n\u1ee9t\" loading=\"lazy\" width=\"600\" height=\"600\" title=\"\"><\/p>\n<h2>\u0110eo \u0110\u00fang C\u00e1ch, V\u1ec7 Sinh V\u00e0 Thay \u0110\u1ec7m<\/h2>\n<p>Ch\u1ec9 c\u1ea7n m\u1ed9t s\u1ee3i t\u00f3c d\u00e0y, g\u1ecdng k\u00ednh ho\u1eb7c m\u1ed9t g\u00f3c kh\u0103n tr\u00f9m len v\u00e0o vi\u1ec1n \u0111\u1ec7m l\u00e0 hi\u1ec7u qu\u1ea3 gi\u1ea3m \u1ed3n c\u00f3 th\u1ec3 m\u1ea5t 3\u20135 dB. C\u00e1c b\u01b0\u1edbc \u0111eo \u0111\u00fang:<\/p>\n<ol>\n<li>\u0110\u1ed9i m\u0169 b\u1ea3o h\u1ed9, ch\u1ec9nh \u0111ai \u0111\u1ea7u v\u1eeba v\u1eb7n tr\u01b0\u1edbc, sau \u0111\u00f3 m\u1edbi h\u1ea1 \u1ed1p tai.<\/li>\n<li>V\u00e9n h\u1ebft t\u00f3c, khu\u1ef7 tai ra kh\u1ecfi v\u00f9ng \u0111\u1ec7m; \u0111eo k\u00ednh b\u1ea3o h\u1ed9 c\u00f3 g\u1ecdng m\u1ea3nh n\u1ebfu ph\u1ea3i d\u00f9ng \u0111\u1ed3ng th\u1eddi.<\/li>\n<li>Tr\u01b0\u1ee3t c\u1ed1c sao cho \u0111\u1ec7m \u00f4m k\u00edn to\u00e0n b\u1ed9 v\u00e0nh tai, kh\u00f4ng \u0111\u1ec3 h\u1edf ph\u00eda d\u01b0\u1edbi d\u00e1i tai.<\/li>\n<li>Ki\u1ec3m tra nhanh: b\u1ecbt tay ngo\u00e0i c\u1ed1c, n\u1ebfu \u00e2m thanh gi\u1ea3m th\u00eam r\u00f5 r\u1ec7t ngh\u0129a l\u00e0 \u0111ang b\u1ecb h\u1edf, c\u1ea7n ch\u1ec9nh l\u1ea1i.<\/li>\n<\/ol>\n<p>V\u1ec7 sinh cu\u1ed1i ca: lau c\u1ed1c v\u00e0 \u0111\u1ec7m b\u1eb1ng kh\u0103n \u1ea9m v\u1edbi x\u00e0 ph\u00f2ng trung t\u00ednh, kh\u00f4ng d\u00f9ng c\u1ed3n c\u00f4ng nghi\u1ec7p hay dung m\u00f4i v\u00ec l\u00e0m gi\u00f2n v\u00e0 n\u1ee9t \u0111\u1ec7m. \u0110\u1ec3 kh\u00f4 t\u1ef1 nhi\u00ean, kh\u00f4ng ph\u01a1i n\u1eafng g\u1eaft.<\/p>\n<p>\u0110\u1ec7m tai l\u00e0 v\u1eadt t\u01b0 ti\u00eau hao: n\u00ean thay \u0111\u1ecbnh k\u1ef3 <strong>3\u20136 th\u00e1ng<\/strong> t\u00f9y c\u01b0\u1eddng \u0111\u1ed9 s\u1eed d\u1ee5ng, ho\u1eb7c thay ngay khi \u0111\u1ec7m c\u1ee9ng l\u1ea1i, n\u1ee9t, b\u1eb9p kh\u00f4ng \u0111\u00e0n h\u1ed3i, d\u00ednh d\u1ea7u m\u1ee1 kh\u00f4ng t\u1ea9y \u0111\u01b0\u1ee3c. Khi mua \u1ed1p tai s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, h\u00e3y \u0111\u1eb7t k\u00e8m b\u1ed9 \u0111\u1ec7m thay th\u1ebf \u2013 chi ph\u00ed nh\u1ecf nh\u01b0ng gi\u1eef \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 c\u1ee7a c\u1ea3 l\u00f4 h\u00e0ng.<\/p>\n<h2>L\u01b0u \u00dd Khi Trang B\u1ecb S\u1ed1 L\u01b0\u1ee3ng L\u1edbn Cho C\u00f4ng Tr\u01b0\u1eddng<\/h2>\n<ul>\n<li><strong>\u0110o \u1ed3n tr\u01b0\u1edbc khi mua:<\/strong> d\u00f9ng m\u00e1y \u0111o m\u1ee9c \u00e2m t\u1ea1i c\u00e1c v\u1ecb tr\u00ed thao t\u00e1c \u0111\u1ec3 bi\u1ebft c\u1ea7n SNR bao nhi\u00eau, tr\u00e1nh mua d\u01b0 g\u00e2y kh\u00f3 giao ti\u1ebfp ho\u1eb7c mua thi\u1ebfu kh\u00f4ng \u0111\u1ee7 b\u1ea3o v\u1ec7.<\/li>\n<li><strong>Th\u1ed1ng nh\u1ea5t d\u00f2ng m\u0169:<\/strong> ch\u1ec9 n\u00ean d\u00f9ng m\u1ed9t ho\u1eb7c hai d\u00f2ng m\u0169 tr\u00ean c\u00f9ng c\u00f4ng tr\u01b0\u1eddng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi b\u1ed9 \u1ed1p tai \u0111\u1ec1u l\u1eafp v\u1eeba khe 30 mm v\u00e0 n\u1eb1m trong danh s\u00e1ch t\u01b0\u01a1ng th\u00edch \u0111\u00e3 ch\u1ee9ng nh\u1eadn.<\/li>\n<li><strong>Ph\u00e2n lo\u1ea1i theo t\u1ed5:<\/strong> t\u1ed5 v\u1eadn h\u00e0nh m\u00e1y \u0111\u1ee5c, m\u00e1y c\u1eaft c\u1ea7n SNR cao; t\u1ed5 gi\u00e1m s\u00e1t, k\u1ef9 thu\u1eadt \u0111i l\u1ea1i nhi\u1ec1u n\u00ean d\u00f9ng m\u1ee9c v\u1eeba \u0111\u1ec3 v\u1eabn nghe \u0111\u01b0\u1ee3c \u0111\u00e0m tho\u1ea1i.<\/li>\n<li><strong>D\u1ef1 tr\u00f9 v\u1eadt t\u01b0 thay th\u1ebf:<\/strong> \u0111\u1eb7t th\u00eam 20\u201330% b\u1ed9 \u0111\u1ec7m v\u00e0 m\u1ed9t s\u1ed1 c\u00e1nh tay \u0111\u00f2n d\u1ef1 ph\u00f2ng \u2013 chi ti\u1ebft n\u00e0y hay g\u00e3y khi rung l\u1eafc, va \u0111\u1eadp.<\/li>\n<li><strong>Hu\u1ea5n luy\u1ec7n \u0111eo \u0111\u00fang:<\/strong> ph\u00e1t \u1ed1p tai m\u00e0 kh\u00f4ng h\u01b0\u1edbng d\u1eabn v\u1ecb tr\u00ed \u0111\u1ec7m th\u00ec hi\u1ec7u qu\u1ea3 th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 ch\u1ec9 c\u00f2n m\u1ed9t n\u1eeda so v\u1edbi s\u1ed1 li\u1ec7u ph\u00f2ng th\u00ed nghi\u1ec7m.<\/li>\n<\/ul>\n<h2>L\u1eafp V\u1eeba M\u0169 N\u00e0o, Gi\u1ea3m \u1ed2n K\u00e9m H\u01a1n Bao Nhi\u00eau V\u00e0 Khi N\u00e0o Thay C\u1ea3 B\u1ed9<\/h2>\n<h3>\u1ed0p Tai G\u1eafn M\u0169 C\u00f3 L\u1eafp \u0110\u01b0\u1ee3c V\u00e0o M\u1ecdi Lo\u1ea1i M\u0169 B\u1ea3o H\u1ed9 Kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. Ch\u1ec9 l\u1eafp \u0111\u01b0\u1ee3c v\u00e0o m\u0169 c\u00f3 khe b\u00ean chu\u1ea9n (th\u01b0\u1eddng 30 mm) v\u00e0 ph\u1ea3i n\u1eb1m trong danh s\u00e1ch t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo EN 352-3. M\u0169 kh\u00f4ng c\u00f3 khe, m\u0169 nh\u1ef1a m\u1ecfng ho\u1eb7c m\u0169 v\u1ea3i kh\u00f4ng d\u00f9ng \u0111\u01b0\u1ee3c lo\u1ea1i n\u00e0y.<\/p>\n<h3>M\u1ee9c Gi\u1ea3m \u1ed2n C\u1ee7a \u1ed0p Tai G\u1eafn M\u0169 C\u00f3 Th\u1ea5p H\u01a1n B\u1ea3n \u0110ai \u0110\u1ed9i \u0110\u1ea7u Kh\u00f4ng?<\/h3>\n<p>Th\u01b0\u1eddng th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat, kho\u1ea3ng 1\u20133 dB, do l\u1ef1c \u00e9p ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebft c\u1ea5u m\u0169 v\u00e0 v\u1ecb tr\u00ed khe. B\u00f9 l\u1ea1i, ng\u01b0\u1eddi lao \u0111\u1ed9ng \u0111eo th\u01b0\u1eddng xuy\u00ean h\u01a1n v\u00ec ti\u1ec7n, n\u00ean hi\u1ec7u qu\u1ea3 b\u1ea3o v\u1ec7 th\u1ef1c t\u1ebf trong c\u1ea3 ca th\u01b0\u1eddng t\u1ed1t h\u01a1n.<\/p>\n<h3>C\u00f3 N\u00ean \u0110eo \u0110\u1ed3ng Th\u1eddi N\u00fat Tai V\u00e0 \u1ed0p Tai?<\/h3>\n<p>C\u00f3, trong m\u00f4i tr\u01b0\u1eddng \u1ed3n r\u1ea5t l\u1edbn (tr\u00ean 100 dB(A)). Tuy nhi\u00ean m\u1ee9c gi\u1ea3m \u1ed3n kh\u00f4ng c\u1ed9ng d\u1ed3n s\u1ed1 h\u1ecdc m\u00e0 ch\u1ec9 t\u0103ng th\u00eam kho\u1ea3ng 5\u20136 dB so v\u1edbi thi\u1ebft b\u1ecb t\u1ed1t h\u01a1n trong hai lo\u1ea1i. C\u1ea7n \u0111\u00e1nh gi\u00e1 l\u1ea1i kh\u1ea3 n\u0103ng nghe c\u1ea3nh b\u00e1o tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng \u0111\u1ea1i tr\u00e0.<\/p>\n<h3>Bao L\u00e2u Ph\u1ea3i Thay C\u1ea3 B\u1ed9 \u1ed0p Tai?<\/h3>\n<p>N\u1ebfu \u0111\u1ec7m \u0111\u01b0\u1ee3c thay \u0111\u1ecbnh k\u1ef3, th\u00e2n \u1ed1p tai th\u01b0\u1eddng d\u00f9ng \u0111\u01b0\u1ee3c 2\u20133 n\u0103m. Ph\u1ea3i thay ngay khi c\u1ed1c n\u1ee9t, c\u00e1nh tay \u0111\u00f2n m\u1ea5t l\u1ef1c l\u00f2 xo (\u1ed1p tai r\u01a1i xu\u1ed1ng khi c\u00fai \u0111\u1ea7u) ho\u1eb7c ng\u00e0m g\u1eafn l\u1ecfng, kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed tr\u00ean m\u0169.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u1ed1p tai ch\u1ed1ng \u1ed3n b\u1ea3o v\u1ec7 \u0111\u00f4i tai c\u1ee7a b\u1ea1n<\/p>\n","protected":false},"author":969,"featured_media":35562,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6934],"tags":[179,4069,232],"class_list":["post-21586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xoa-gsc","tag-nut-tai-chong-on","tag-nut-tai-chong-on-chat-luong-cao","tag-op-tai-chong-on"],"_links":{"self":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/21586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/users\/969"}],"replies":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/comments?post=21586"}],"version-history":[{"count":25,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/21586\/revisions"}],"predecessor-version":[{"id":95359,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/21586\/revisions\/95359"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media\/35562"}],"wp:attachment":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media?parent=21586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/categories?post=21586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/tags?post=21586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}