![\"Thang](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/07\/thang-nhom-rut-gon-xin.jpg\" "\\"\\"")
<\/figure>\n\n\n\nThang Nh\u00f4m R\u00fat G\u1ecdn V\u00e0 B\u00e0i To\u00e1n Ch\u1ed7 C\u1ea5t Trong X\u01b0\u1edfng<\/h2>\n\n\n\n
M\u1ed9t c\u00e2y thang \u0111\u01a1n b\u1ed1n m\u00e9t chi\u1ebfm h\u1ebft m\u1ed9t v\u00e1ch t\u01b0\u1eddng kho, v\u00e0 kh\u00f4ng qua \u0111\u01b0\u1ee3c c\u1ea7u thang b\u1ed9 c\u1ee7a t\u00f2a nh\u00e0. \u0110\u00f3 l\u00e0 l\u00fd do \u0111\u1ed9i b\u1ea3o tr\u00ec th\u01b0\u1eddng kh\u00f4ng mang thang t\u1eeb kho \u0111\u1ebfn hi\u1ec7n tr\u01b0\u1eddng m\u00e0 \u0111i k\u00ea gh\u1ebf, k\u00ea th\u00f9ng. Thang r\u00fat g\u1ecdn gi\u1ea3i quy\u1ebft \u0111\u00fang \u0111i\u1ec3m ngh\u1ebdn n\u00e0y.<\/p>\n\n\n\n
Nh\u00f3m vi\u1ec7c h\u1ee3p nh\u1ea5t g\u1ed3m thay b\u00f3ng \u0111\u00e8n sau khi \u0111\u00e3 c\u1eaft \u0111i\u1ec7n, v\u1ec7 sinh m\u00e1y l\u1ea1nh, ki\u1ec3m tra \u0111\u1ea7u b\u00e1o kh\u00f3i, k\u00e9o d\u00e2y m\u1ea1ng tr\u00ean tr\u1ea7n, s\u01a1n v\u00e1 t\u01b0\u1eddng. \u0110\u1eb7c \u0111i\u1ec3m chung l\u00e0 th\u1eddi gian \u1edf tr\u00ean thang ng\u1eafn, thao t\u00e1c nh\u1eb9 v\u00e0 v\u1ecb tr\u00ed thay \u0111\u1ed5i li\u00ean t\u1ee5c. Kh\u1ea3 n\u0103ng mang theo t\u1eeb ph\u00f2ng n\u00e0y sang ph\u00f2ng kh\u00e1c quan tr\u1ecdng h\u01a1n \u0111\u1ed9 v\u1eefng c\u1ee7a m\u1ed9t ch\u1ed7 \u0111\u1ee9ng c\u1ed1 \u0111\u1ecbnh.<\/p>\n\n\n\n
Nh\u00f3m vi\u1ec7c kh\u00f4ng h\u1ee3p c\u0169ng r\u1ea5t r\u00f5. C\u00f4ng vi\u1ec7c \u0111\u1ee9ng h\u00e0ng gi\u1edd tr\u00ean thang, mang v\u1eadt n\u1eb7ng l\u00ean xu\u1ed1ng nhi\u1ec1u l\u01b0\u1ee3t, ho\u1eb7c thao t\u00e1c c\u1ea7n r\u1ec3 ng\u01b0\u1eddi sang hai b\u00ean \u0111\u1ec1u n\u00ean d\u00f9ng thang ch\u1eef A c\u00f3 b\u1eadc r\u1ed9ng ho\u1eb7c gi\u00e0n gi\u00e1o di \u0111\u1ed9ng. Thang \u1ed1ng l\u1ed3ng c\u00f3 b\u1eadc h\u1eb9p, \u0111\u1ee9ng l\u00e2u r\u1ea5t \u0111au l\u00f2ng b\u00e0n ch\u00e2n.<\/p>\n\n\n\n
Ch\u1ed7 c\u1ea5t l\u00e0 \u01b0u th\u1ebf, nh\u01b0ng c\u0169ng n\u00ean t\u00ednh \u0111\u00fang. Khi thu l\u1ea1i, thang v\u1eabn n\u1eb7ng g\u1ea7n b\u1eb1ng l\u00fac m\u1edf, ch\u1ec9 ng\u1eafn h\u01a1n ch\u1ee9 kh\u00f4ng nh\u1eb9 h\u01a1n. M\u1ed9t c\u00e2y thang r\u00fat lo\u1ea1i b\u1ed1n m\u00e9t c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 v\u00e0 kh\u00f4ng ph\u1ea3i ai c\u0169ng x\u00e1ch m\u1ed9t tay \u0111i xa \u0111\u01b0\u1ee3c. Con s\u1ed1 tr\u1ecdng l\u01b0\u1ee3ng n\u00ean h\u1ecfi tr\u01b0\u1edbc, v\u00ec n\u00f3 quy\u1ebft \u0111\u1ecbnh vi\u1ec7c thang c\u00f3 \u0111\u01b0\u1ee3c mang \u0111i hay n\u1eb1m l\u1ea1i trong kho.<\/p>\n\n\n\n
Khi N\u00e0o C\u1ea7n R\u00fat \u0110\u01a1n, Khi N\u00e0o C\u1ea7n R\u00fat Ch\u1eef A<\/h2>\n\n\n\n
Lo\u1ea1i r\u00fat \u0111\u01a1n l\u00e0 m\u1ed9t th\u00e2n th\u1eb3ng, khi m\u1edf h\u1ebft t\u1ea1o th\u00e0nh c\u00e2y thang d\u1ef1a. N\u00f3 lu\u00f4n c\u1ea7n m\u1ed9t m\u1eb7t t\u01b0\u1eddng ho\u1eb7c m\u1ed9t k\u1ebft c\u1ea5u \u0111\u1ec3 t\u1ef1a v\u00e0o. \u0110\u1ed5i l\u1ea1i, v\u1edbi c\u00f9ng chi\u1ec1u d\u00e0i \u1ed1ng, lo\u1ea1i n\u00e0y v\u01b0\u01a1n cao h\u01a1n h\u1eb3n v\u00e0 g\u1ecdn h\u01a1n khi c\u1ea5t.<\/p>\n\n\n\n
Lo\u1ea1i r\u00fat ch\u1eef A c\u00f3 b\u1ea3n l\u1ec1 \u1edf gi\u1eefa, m\u1edf ra th\u00e0nh h\u00ecnh ch\u1eef A t\u1ef1 \u0111\u1ee9ng \u0111\u01b0\u1ee3c. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn cho ch\u1ed7 kh\u00f4ng c\u00f3 t\u01b0\u1eddng \u0111\u1ec3 t\u1ef1a, ch\u1eb3ng h\u1ea1n gi\u1eefa nh\u00e0 x\u01b0\u1edfng hay gi\u1eefa s\u1ea3nh. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 chi\u1ec1u cao l\u00e0m vi\u1ec7c ch\u1ec9 c\u00f2n kho\u1ea3ng m\u1ed9t n\u1eeda so v\u1edbi khi d\u00f9ng \u1edf ch\u1ebf \u0111\u1ed9 d\u1ef1a t\u01b0\u1eddng, v\u00e0 b\u1ea3n l\u1ec1 l\u00e0 th\u00eam m\u1ed9t chi ti\u1ebft c\u00f3 th\u1ec3 h\u1ecfng.<\/p>\n\n\n\n Kh\u1ea3 n\u0103ng m\u1edf t\u1eebng ph\u1ea7n kh\u00e1c nhau theo m\u1eabu. C\u00f3 m\u1eabu cho ph\u00e9p ch\u1ec9 k\u00e9o l\u00ean s\u1ed1 \u0111\u1ed1t c\u1ea7n d\u00f9ng r\u1ed3i kho\u00e1 l\u1ea1i, r\u1ea5t ti\u1ec7n khi tr\u1ea7n th\u1ea5p. C\u00f3 m\u1eabu b\u1eaft bu\u1ed9c m\u1edf h\u1ebft m\u1edbi kho\u00e1 ch\u1eafc. Kh\u00e1c bi\u1ec7t n\u00e0y \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 l\u00e0m vi\u1ec7c h\u1eb1ng ng\u00e0y, n\u00ean h\u1ecfi r\u00f5 tr\u01b0\u1edbc khi mua.<\/p>\n\n\n\n C\u00e1ch thu thang c\u0169ng kh\u00e1c nhau gi\u1eefa c\u00e1c d\u00f2ng. Lo\u1ea1i thu t\u1eebng \u0111\u1ed1t m\u1ea5t th\u1eddi gian h\u01a1n nh\u01b0ng an to\u00e0n cho ng\u00f3n tay. Lo\u1ea1i thu m\u1ed9t l\u1ea7n nhanh h\u01a1n nh\u01b0ng n\u1ebfu ng\u01b0\u1eddi d\u00f9ng \u0111\u1eb7t tay sai ch\u1ed7 s\u1ebd b\u1ecb k\u1eb9p. \u0110\u00e2y l\u00e0 tai n\u1ea1n nh\u1ecf nh\u01b0ng r\u1ea5t hay x\u1ea3y ra, v\u00e0 n\u00ean \u0111\u01b0\u1ee3c nh\u1eafc trong bu\u1ed5i b\u00e0n giao thi\u1ebft b\u1ecb.<\/p>\n\n\n\n M\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u c\u0169 vi\u1ebft r\u1eb1ng thang nh\u00f4m ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c c\u1ee9u h\u1ecfa v\u00ec kh\u00f4ng b\u1eaft l\u1eeda. C\u00e2u \u0111\u00f3 b\u1ecf qua \u0111i\u1ec1u quan tr\u1ecdng h\u01a1n nhi\u1ec1u: nh\u00f4m d\u1eabn \u0111i\u1ec7n r\u1ea5t t\u1ed1t. M\u1ed9t c\u00e2y thang nh\u00f4m ch\u1ea1m v\u00e0o d\u00e2y \u0111i\u1ec7n tr\u1edf th\u00e0nh \u0111\u01b0\u1eddng d\u1eabn n\u1ed1i th\u1eb3ng t\u1eeb d\u00e2y xu\u1ed1ng ng\u01b0\u1eddi \u0111ang \u0111\u1ee9ng tr\u00ean n\u00f3.<\/p>\n\n\n\n V\u00ec v\u1eady, tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng d\u00f9ng thang nh\u00f4m \u1edf n\u01a1i c\u00f3 \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean cao, kh\u00f4ng d\u1ef1ng thang nh\u00f4m \u0111\u1ec3 s\u1eeda t\u1ee7 \u0111i\u1ec7n, v\u00e0 kh\u00f4ng mang thang nh\u00f4m d\u1ef1ng \u0111\u1ee9ng \u0111i b\u0103ng qua s\u00e2n c\u00f3 d\u00e2y \u0111i\u1ec7n v\u1eaft ngang. C\u00f4ng vi\u1ec7c g\u1ea7n \u0111i\u1ec7n ph\u1ea3i d\u00f9ng thang v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n, th\u01b0\u1eddng l\u00e0 thang composite s\u1ee3i th\u1ee7y tinh.<\/p>\n\n\n\n Chuy\u1ec7n nh\u00f4m ch\u1ecbu nhi\u1ec7t c\u0169ng hay b\u1ecb hi\u1ec3u qu\u00e1 tay: nh\u00f4m kh\u00f4ng ch\u00e1y nh\u01b0ng m\u1ec1m \u0111i r\u1ea5t s\u1edbm khi g\u1eb7p nhi\u1ec7t cao, v\u00e0 n\u00f3ng l\u00ean r\u1ea5t nhanh khi \u1edf g\u1ea7n ngu\u1ed3n l\u1eeda. \u0110i\u1ec1u \u0111\u00f3 khi\u1ebfn n\u00f3 kh\u00f4ng ph\u1ea3i l\u1ef1a ch\u1ecdn m\u1eb7c \u0111\u1ecbnh cho c\u00f4ng vi\u1ec7c ch\u1eefa ch\u00e1y, v\u00e0 c\u00e0ng kh\u00f4ng n\u00ean d\u00f9ng g\u1ea7n l\u00f2 nung hay khu v\u1ef1c h\u00e0n c\u1eaft.<\/p>\n\n\n\n Ng\u01b0\u1ee3c l\u1ea1i, \u1edf m\u00f4i tr\u01b0\u1eddng b\u00ecnh th\u01b0\u1eddng th\u00ec nh\u00f4m c\u00f3 \u01b0u th\u1ebf th\u1eadt: kh\u00f4ng m\u1ee5c nh\u01b0 g\u1ed7, kh\u00f4ng g\u1ec9 nh\u01b0 th\u00e9p, kh\u00f4ng h\u00fat \u1ea9m v\u00e0 g\u1ea7n nh\u01b0 kh\u00f4ng c\u1ea7n b\u1ea3o d\u01b0\u1ee1ng b\u1ec1 m\u1eb7t. \u0110\u00f3 l\u00e0 l\u00fd do n\u00f3 ph\u1ed5 bi\u1ebfn, ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u00ec n\u00f3 an to\u00e0n h\u01a1n trong m\u1ecdi t\u00ecnh hu\u1ed1ng. Danh m\u1ee5c thang theo v\u1eadt li\u1ec7u v\u00e0 chi\u1ec1u cao n\u1eb1m \u1edf trang thang nh\u00f4m b\u1ea3o h\u1ed9<\/a>.<\/p>\n\n\n\n EN 131 l\u00e0 b\u1ed9 ti\u00eau chu\u1ea9n ch\u00e2u \u00c2u cho thang di \u0111\u1ed9ng, \u00e1p d\u1ee5ng cho c\u1ea3 thang ch\u1eef A, thang d\u1ef1a v\u00e0 thang r\u00fat. Ph\u1ea7n EN 131-1 quy \u0111\u1ecbnh ki\u1ec3u lo\u1ea1i v\u00e0 k\u00edch th\u01b0\u1edbc, ph\u1ea7n EN 131-2 quy \u0111\u1ecbnh ph\u00e9p th\u1eed v\u00e0 c\u00e1ch ghi nh\u00e3n. B\u1ea3n s\u1eeda \u0111\u1ed5i l\u1edbn c\u00f3 hi\u1ec7u l\u1ef1c t\u1eeb th\u00e1ng 01\/2019 v\u00e0 \u0111\u00e3 thay cho c\u00e1c ti\u00eau chu\u1ea9n c\u0169 c\u1ee7a Anh.<\/p>\n\n\n\n Con s\u1ed1 hay g\u1eb7p tr\u00ean nh\u00e3n l\u00e0 150 kg. C\u1ea7n \u0111\u1ecdc \u0111\u00fang: \u0111\u00e2y l\u00e0 t\u1ea3i tr\u1ecdng t\u1ed5ng t\u1ed1i \u0111a, bao g\u1ed3m c\u1ea3 ng\u01b0\u1eddi d\u00f9ng, d\u1ee5ng c\u1ee5, thi\u1ebft b\u1ecb v\u00e0 v\u1eadt li\u1ec7u mang theo. M\u1ed9t ng\u01b0\u1eddi n\u1eb7ng 80 kg mang theo th\u00f9ng \u0111\u1ed3 ngh\u1ec1 v\u00e0 cu\u1ed9n d\u00e2y \u0111\u00e3 chi\u1ebfm ph\u1ea7n l\u1edbn h\u1ea1n m\u1ee9c. \u0110\u00e2y kh\u00f4ng ph\u1ea3i t\u1ea3i tr\u1ecdng th\u1eed t\u1ed1i thi\u1ec3u nh\u01b0 nhi\u1ec1u m\u00f4 t\u1ea3 vi\u1ebft nh\u1ea7m.<\/p>\n\n\n\n Ph\u00e2n lo\u1ea1i th\u1ee9 hai tr\u00ean nh\u00e3n l\u00e0 Professional v\u00e0 Non-professional. C\u1ea3 hai c\u00f9ng m\u1ee9c t\u1ea3i 150 kg, kh\u00e1c nhau \u1edf s\u1ed1 chu k\u1ef3 th\u1eed \u0111\u1ed9 b\u1ec1n: b\u1ea3n chuy\u00ean nghi\u1ec7p ch\u1ecbu 50.000 chu k\u1ef3, b\u1ea3n gia d\u1ee5ng ch\u1ec9 10.000 chu k\u1ef3. B\u1ea3n gia d\u1ee5ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng trong m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c, d\u00f9 nh\u00ecn b\u1ec1 ngo\u00e0i gi\u1ed1ng h\u1ec7t.<\/p>\n\n\n\n Chi ti\u1ebft \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1ch \u0111\u1ecdc nh\u00e3n v\u00e0 hai m\u1ee9c ph\u00e2n lo\u1ea1i c\u00f3 tr\u00ean trang c\u1ee7a Ladder Association v\u1ec1 EN 131<\/a>. \u0110\u00e2y l\u00e0 hi\u1ec7p h\u1ed9i ngh\u1ec1 v\u1ec1 thang, t\u00e0i li\u1ec7u vi\u1ebft cho ng\u01b0\u1eddi d\u00f9ng ch\u1ee9 kh\u00f4ng ph\u1ea3i cho ph\u00f2ng th\u00ed nghi\u1ec7m, n\u00ean d\u1ec5 tra khi c\u1ea7n \u0111\u1ed1i chi\u1ebfu m\u1ed9t nh\u00e3n c\u1ee5 th\u1ec3.<\/p>\n\n\n\n M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch \u0111\u1ecdc th\u00f4ng s\u1ed1 t\u1eeb ngu\u1ed3n g\u1ed1c: d\u00f2ng Xtend and Climb 770P c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t M\u1ef9 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u1ecdng l\u01b0\u1ee3ng 25 pound, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng kho\u1ea3ng 11,3 kg, chi\u1ec1u cao thu g\u1ecdn 32 inch v\u00e0 \u0111\u1ea1t ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n c\u1ee7a M\u1ef9 v\u00e0 Canada. \u0110\u00f3 l\u00e0 d\u1ea1ng th\u00f4ng s\u1ed1 c\u00f3 th\u1ec3 tra l\u1ea1i tr\u00ean trang h\u00e3ng, kh\u00e1c v\u1edbi nh\u1eefng con s\u1ed1 ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf trang b\u00e1n l\u1ebb.<\/p>\n\n\n\n Khi \u0111\u00e0m ph\u00e1n mua, n\u00ean y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p ghi v\u00e0o h\u1ee3p \u0111\u1ed3ng ba th\u00f4ng s\u1ed1: chi\u1ec1u cao m\u1edf t\u1ed1i \u0111a, chi\u1ec1u cao thu g\u1ecdn v\u00e0 t\u1ea3i tr\u1ecdng t\u1ed5ng. Ba con s\u1ed1 n\u00e0y d\u1ec5 ki\u1ec3m ch\u1ee9ng khi nh\u1eadn h\u00e0ng, kh\u00e1c v\u1edbi nh\u1eefng c\u00e2u m\u00f4 t\u1ea3 chung chung v\u1ec1 \u0111\u1ed9 b\u1ec1n.<\/p>\n\n\n\n To\u00e0n b\u1ed9 \u0111\u1ed9 an to\u00e0n c\u1ee7a thang r\u00fat n\u1eb1m \u1edf c\u00e1c ch\u1ed1t kho\u00e1 gi\u1eefa c\u00e1c \u0111\u1ed1t. M\u1ed7i \u0111\u1ed1t c\u00f3 m\u1ed9t c\u1eb7p ch\u1ed1t b\u1eadt ra hai b\u00ean khi \u0111\u1ed1t \u0111\u01b0\u1ee3c k\u00e9o h\u1ebft h\u00e0nh tr\u00ecnh. Ch\u1ed1t kh\u00f4ng b\u1eadt h\u1ebft ngh\u0129a l\u00e0 \u0111\u1ed1t \u0111\u00f3 ch\u1ec9 \u0111ang t\u1ef3 v\u00e0o ma s\u00e1t, v\u00e0 n\u00f3 s\u1ebd tr\u01b0\u1ee3t xu\u1ed1ng khi c\u00f3 t\u1ea3i.<\/p>\n\n\n\n Ph\u1ea7n l\u1edbn m\u1eabu c\u00f3 ch\u1ec9 b\u00e1o m\u00e0u \u1edf khe ch\u1ed1t: m\u1ed9t v\u1ec7t hi\u1ec7n ra khi ch\u1ed1t \u0111\u00e3 v\u00e0o \u0111\u00fang v\u1ecb tr\u00ed. Vi\u1ec7c ki\u1ec3m t\u1eebng ch\u1ed1t sau khi k\u00e9o thang l\u00ean, tr\u01b0\u1edbc khi \u0111\u1eb7t ch\u00e2n l\u00ean b\u1eadc \u0111\u1ea7u ti\u00ean, ch\u1ec9 m\u1ea5t v\u00e0i gi\u00e2y. \u0110\u00e2y l\u00e0 thao t\u00e1c hay b\u1ecb b\u1ecf khi ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 quen tay v\u00e0 \u0111ang v\u1ed9i.<\/p>\n\n\n\n Nguy\u00ean nh\u00e2n ch\u1ed1t k\u1eb9t th\u01b0\u1eddng l\u00e0 b\u1ee5i, c\u00e1t v\u00e0 v\u1eefa kh\u00f4 l\u1ecdt v\u00e0o l\u00f2ng \u1ed1ng. Thang d\u00f9ng \u1edf c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng d\u00ednh v\u1eefa r\u1ea5t nhanh, v\u00e0 v\u1eefa kh\u00f4 trong khe ch\u1ed1t l\u00e0m l\u00f2 xo m\u1ea5t l\u1ef1c. C\u00e1ch x\u1eed l\u00fd l\u00e0 th\u1ed5i s\u1ea1ch khe b\u1eb1ng kh\u00ed n\u00e9n v\u00e0 lau kh\u00f4 sau m\u1ed7i \u0111\u1ee3t, kh\u00f4ng x\u1ecbt d\u1ea7u tr\u00e0n lan v\u00ec d\u1ea7u gi\u1eef b\u1ee5i l\u1ea1i.<\/p>\n\n\n\n C\u0103n c\u1ee9 lo\u1ea1i b\u1ecf c\u1ea7n r\u00f5 r\u00e0ng: ch\u1ec9 c\u1ea7n m\u1ed9t c\u1eb7p ch\u1ed1t kh\u00f4ng b\u1eadt \u0111\u1ee7 ho\u1eb7c kh\u00f4ng t\u1ef1 h\u1ed3i v\u1ec1 v\u1ecb tr\u00ed th\u00ec c\u1ea3 c\u00e2y thang ph\u1ea3i \u0111\u01b0a ra kh\u1ecfi s\u1eed d\u1ee5ng. Kh\u00f4ng ch\u1eafp v\u00e1 b\u1eb1ng c\u00e1ch tr\u00e1nh d\u00f9ng \u0111\u1ed1t \u0111\u00f3, v\u00ec ng\u01b0\u1eddi d\u00f9ng sau kh\u00f4ng bi\u1ebft quy \u01b0\u1edbc \u0111\u00f3 v\u00e0 s\u1ebd k\u00e9o h\u1ebft chi\u1ec1u d\u00e0i.<\/p>\n\n\n\n V\u1edbi thang d\u1ef1a, g\u00f3c nghi\u00eang quy\u1ebft \u0111\u1ecbnh vi\u1ec7c thang tr\u01b0\u1ee3t ch\u00e2n hay l\u1eadt ng\u1eeda. Quy t\u1eafc d\u1ec5 nh\u1edb l\u00e0 t\u1ec9 l\u1ec7 b\u1ed1n m\u1ed9t: c\u1ee9 b\u1ed1n \u0111\u01a1n v\u1ecb chi\u1ec1u cao t\u1ef1a t\u01b0\u1eddng th\u00ec ch\u00e2n thang \u0111\u1eb7t c\u00e1ch ch\u00e2n t\u01b0\u1eddng m\u1ed9t \u0111\u01a1n v\u1ecb. Thang cao b\u1ed1n m\u00e9t th\u00ec ch\u00e2n \u0111\u1eb7t c\u00e1ch t\u01b0\u1eddng kho\u1ea3ng m\u1ed9t m\u00e9t.<\/p>\n\n\n\n D\u1ef1ng qu\u00e1 \u0111\u1ee9ng th\u00ec thang d\u1ec5 l\u1eadt ra sau khi ng\u01b0\u1eddi v\u1edbi tay. D\u1ef1ng qu\u00e1 tho\u1ea3i th\u00ec ch\u00e2n thang tr\u01b0\u1ee3t ra xa, nh\u1ea5t l\u00e0 tr\u00ean n\u1ec1n g\u1ea1ch \u01b0\u1edbt hay n\u1ec1n c\u00f3 b\u1ee5i xi m\u0103ng. Ph\u1ea7n \u0111\u1ec7m cao su \u1edf ch\u00e2n thang ph\u1ea3i c\u00f2n \u0111\u1ee7 v\u00e0 c\u00f2n b\u00e1m; \u0111\u1ec7m m\u1ea5t ho\u1eb7c ch\u00e2n thang tr\u01a1 nh\u00f4m l\u00e0 t\u00ecnh tr\u1ea1ng ph\u1ea3i x\u1eed l\u00fd tr\u01b0\u1edbc khi d\u00f9ng.<\/p>\n\n\n\n V\u1edbi c\u00f4ng vi\u1ec7c \u1edf \u0111\u1ed9 cao l\u1edbn ho\u1eb7c k\u00e9o d\u00e0i, thang kh\u00f4ng c\u00f2n l\u00e0 gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p v\u00e0 ph\u1ea3i chuy\u1ec3n sang gi\u00e0n gi\u00e1o ho\u1eb7c s\u00e0n n\u00e2ng. Trong tr\u01b0\u1eddng h\u1ee3p b\u1eaft bu\u1ed9c d\u00f9ng thang, ng\u01b0\u1eddi l\u00e0m ph\u1ea3i \u0111eo \u0111ai an to\u00e0n to\u00e0n th\u00e2n v\u00e0 m\u00f3c d\u00e2y ch\u1ed1ng r\u01a1i v\u00e0o \u0111i\u1ec3m neo \u0111\u1ed9c l\u1eadp v\u1edbi c\u00e2y thang; \u0111ai eo ch\u1ec9 gi\u1eef t\u01b0 th\u1ebf, kh\u00f4ng h\u00e3m \u0111\u01b0\u1ee3c c\u00fa r\u01a1i. C\u00e1c lo\u1ea1i \u0111ai v\u00e0 c\u00e1ch ch\u1ecdn \u0111i\u1ec3m neo \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf trang \u0111ai an to\u00e0n cho th\u1ee3 leo cao<\/a>.<\/p>\n\n\n\n Thang r\u00fat c\u00f3 nhi\u1ec1u chi ti\u1ebft chuy\u1ec3n \u0111\u1ed9ng h\u01a1n thang th\u01b0\u1eddng, n\u00ean c\u1ea7n b\u1ea3o d\u01b0\u1ee1ng d\u00f9 v\u1eadt li\u1ec7u nh\u00f4m kh\u00f4ng g\u1ec9. Ph\u1ea7n hay b\u1ecb b\u1ecf qu\u00ean l\u00e0 m\u1eb7t trong c\u1ee7a \u1ed1ng, n\u01a1i b\u1ee5i v\u00e0 c\u00e1t t\u00edch t\u1ee5 r\u1ed3i c\u00e0o x\u01b0\u1edbc th\u00e0nh \u1ed1ng m\u1ed7i l\u1ea7n thu m\u1edf.<\/p>\n\n\n\n Sau m\u1ed7i \u0111\u1ee3t d\u00f9ng ngo\u00e0i tr\u1eddi, n\u00ean m\u1edf h\u1ebft thang, lau kh\u00f4 t\u1eebng \u0111\u1ed1t t\u1eeb tr\u00ean xu\u1ed1ng r\u1ed3i m\u1edbi thu l\u1ea1i. N\u01b0\u1edbc \u0111\u1ecdng trong l\u00f2ng \u1ed1ng khi thang \u1edf tr\u1ea1ng th\u00e1i thu s\u1ebd \u1edf l\u1ea1i r\u1ea5t l\u00e2u, l\u00e0m b\u1ea9n gio\u0103ng v\u00e0 g\u00e2y k\u1eb9t. \u0110\u00e2y c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn khi\u1ebfn thang m\u1edf ra kh\u00f3 v\u00e0 k\u00eau r\u00edt.<\/p>\n\n\n\n Gio\u0103ng nh\u1ef1a gi\u1eefa c\u00e1c \u0111\u1ed1t l\u00e0m nhi\u1ec7m v\u1ee5 d\u1eabn h\u01b0\u1edbng v\u00e0 gi\u1eef \u0111\u1ed1t kh\u00f4ng r\u01a1 l\u1eafc ngang. Gio\u0103ng m\u00f2n l\u00e0m thang l\u1ecfng, khi \u0111\u1ee9ng l\u00ean c\u00f3 c\u1ea3m gi\u00e1c \u0111u sang hai b\u00ean. \u0110\u00e2y l\u00e0 chi ti\u1ebft thay \u0111\u01b0\u1ee3c, nh\u01b0ng ph\u1ea3i \u0111\u00fang ph\u1ee5 t\u00f9ng c\u1ee7a h\u00e3ng; c\u1eaft nh\u1ef1a t\u1ef1 ch\u1ebf s\u1ebd sai dung sai v\u00e0 l\u00e0m ch\u1ed1t kho\u00e1 kh\u00f4ng \u0103n kh\u1edbp.<\/p>\n\n\n\n V\u1ec1 c\u1ea5t gi\u1eef, n\u00ean \u0111\u1ec3 thang n\u1eb1m ngang tr\u00ean gi\u00e1 ho\u1eb7c d\u1ef1ng \u1edf g\u00f3c c\u00f3 ch\u1eb7n, tr\u00e1nh \u0111\u1ec3 t\u1ef1a v\u00e1ch r\u1ed3i \u0111\u1ed5 \u0111\u00e8 v\u00e0o ng\u01b0\u1eddi. Kh\u00f4ng \u0111\u1ec3 v\u1eadt n\u1eb7ng \u0111\u00e8 l\u00ean th\u00e2n thang, v\u00ec \u1ed1ng nh\u00f4m m\u00f3p m\u1ed9t ch\u1ed7 l\u00e0 c\u1ea3 \u0111\u1ed1t \u0111\u00f3 kh\u00f4ng tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c n\u1eefa.<\/p>\n\n\n\n Cu\u1ed1i c\u00f9ng, n\u00ean \u0111\u00e1nh s\u1ed1 t\u1eebng c\u00e2y thang v\u00e0 g\u1eafn m\u1ed9t th\u1ebb ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3. N\u1ed9i dung ki\u1ec3m g\u1ecdn trong b\u1ed1n m\u1ee5c: ch\u1ed1t kho\u00e1 t\u1eebng \u0111\u1ed1t, \u0111\u1ec7m ch\u00e2n, \u0111\u1ed9 th\u1eb3ng c\u1ee7a th\u00e2n \u1ed1ng, v\u00e0 t\u00ecnh tr\u1ea1ng nh\u00e3n ghi t\u1ea3i tr\u1ecdng. Thang m\u1ea5t nh\u00e3n l\u00e0 thang kh\u00f4ng c\u00f2n c\u0103n c\u1ee9 s\u1eed d\u1ee5ng, v\u00e0 n\u00ean d\u00e1n nh\u00e3n thay th\u1ebf theo h\u1ed3 s\u01a1 g\u1ed1c ch\u1ee9 kh\u00f4ng ghi tay theo tr\u00ed nh\u1edb.<\/p>\n\n\n\n V\u1edbi \u0111\u01a1n v\u1ecb c\u00f3 nhi\u1ec1u thang, n\u00ean g\u1ed9p vi\u1ec7c ki\u1ec3m thang v\u00e0o c\u00f9ng l\u1ecbch ki\u1ec3m c\u00e1c thi\u1ebft b\u1ecb l\u00e0m vi\u1ec7c tr\u00ean cao kh\u00e1c, thay v\u00ec l\u00e0m ri\u00eang l\u1ebb. D\u00e2y \u0111ai, d\u00e2y neo, m\u00f3c kh\u00f3a v\u00e0 thang \u0111\u1ec1u xu\u1ed1ng c\u1ea5p theo c\u00f9ng m\u1ed9t nh\u00f3m nguy\u00ean nh\u00e2n l\u00e0 tia c\u1ef1c t\u00edm, \u0111\u1ed9 \u1ea9m v\u00e0 va \u0111\u1eadp, n\u00ean ki\u1ec3m c\u00f9ng \u0111\u1ee3t s\u1ebd \u0111\u1ee1 b\u1ecf s\u00f3t. Danh m\u1ee5c thi\u1ebft b\u1ecb \u0111i k\u00e8m cho nh\u00f3m c\u00f4ng vi\u1ec7c n\u00e0y n\u1eb1m \u1edf trang ch\u1ed1ng r\u01a1i ng\u00e3 khi l\u00e0m vi\u1ec7c tr\u00ean cao<\/a>.<\/p>\n\n\n\n Ph\u1ea7n c\u00f2n l\u1ea1i li\u00ean quan t\u1edbi ng\u01b0\u1eddi d\u00f9ng ch\u1ee9 kh\u00f4ng t\u1edbi thi\u1ebft b\u1ecb. Thang r\u00fat g\u1ecdn d\u1ec5 mang n\u00ean hay \u0111\u01b0\u1ee3c \u0111\u01b0a cho ng\u01b0\u1eddi ch\u01b0a t\u1eebng d\u00f9ng lo\u1ea1i n\u00e0y. Hai thao t\u00e1c c\u1ea7n h\u01b0\u1edbng d\u1eabn tr\u01b0\u1edbc l\u00e0 c\u00e1ch m\u1edf kh\u00f3a t\u1eebng \u0111\u1ed1t v\u00e0 c\u00e1ch thu thang kh\u00f4ng k\u1eb9p tay. Bu\u1ed5i h\u01b0\u1edbng d\u1eabn n\u0103m ph\u00fat cho ng\u01b0\u1eddi m\u1edbi x\u1eed l\u00fd \u0111\u01b0\u1ee3c ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 nh\u1ecf m\u00e0 lo\u1ea1i thang n\u00e0y hay g\u00e2y ra.<\/p>\n\n\n\n Cu\u1ed1i c\u00f9ng, n\u00ean x\u00e1c \u0111\u1ecbnh r\u00f5 gi\u1edbi h\u1ea1n thay th\u1ebf. Thang r\u00fat g\u1ecdn l\u00e0 c\u00f4ng c\u1ee5 ti\u1ebfp c\u1eadn nhanh cho vi\u1ec7c ng\u1eafn \u1edf \u0111\u1ed9 cao v\u1eeba. Khi c\u00f4ng vi\u1ec7c chuy\u1ec3n sang d\u1ea1ng l\u1eb7p l\u1ea1i h\u1eb1ng ng\u00e0y \u1edf c\u00f9ng m\u1ed9t v\u1ecb tr\u00ed, gi\u1ea3i ph\u00e1p \u0111\u00fang l\u00e0 l\u1eafp thang c\u1ed1 \u0111\u1ecbnh ho\u1eb7c s\u00e0n thao t\u00e1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i mua th\u00eam thang r\u00fat. Nh\u1eadn ra th\u1eddi \u0111i\u1ec3m chuy\u1ec3n \u0111\u1ed5i \u0111\u00f3 gi\u00fap tr\u00e1nh \u0111\u01b0\u1ee3c nh\u00f3m tai n\u1ea1n x\u1ea3y ra v\u00ec d\u00f9ng \u0111\u00fang c\u00f4ng c\u1ee5 nh\u01b0ng sai b\u1ed1i c\u1ea3nh.<\/p>\n\n\n\n Thang nh\u00f4m r\u00fat g\u1ecdn thu l\u1ea1i c\u00f2n kho\u1ea3ng m\u1ed9t m\u00e9t n\u00ean d\u1ec5 c\u1ea5t v\u00e0 d\u1ec5 mang \u0111i, nh\u01b0ng thu l\u1ea1i kh\u00f4ng l\u00e0m thang nh\u1eb9 h\u01a1n. B\u00e0i vi\u1ebft \u0111i v\u00e0o nh\u00f3m vi\u1ec7c h\u1ee3p, gi\u1edbi h\u1ea1n khi l\u00e0m g\u1ea7n \u0111i\u1ec7n, c\u00e1ch \u0111\u1ecdc nh\u00e3n EN 131 v\u00e0 ch\u1ed1t kho\u00e1 t\u1eebng \u0111\u1ed1t. <\/p>\n","protected":false},"author":969,"featured_media":61631,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6934],"tags":[264,1871,6036],"class_list":["post-9618","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xoa-gsc","tag-thang-nhom-rut-gon","tag-thang-nhom-rut-gon-chat-luong","tag-thang-nhom-rut-gon-tot"],"_links":{"self":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/9618","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=9618"}],"version-history":[{"count":22,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/9618\/revisions"}],"predecessor-version":[{"id":98232,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/9618\/revisions\/98232"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media\/61631"}],"wp:attachment":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media?parent=9618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/categories?post=9618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/tags?post=9618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Thang](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/10\/thang-nhom-rut-gon-tien-loi.png\" "\\"\\"")
<\/figure>\n\n\n\nNh\u00f4m D\u1eabn \u0110i\u1ec7n: Gi\u1edbi H\u1ea1n Kh\u00f4ng \u0110\u01b0\u1ee3c B\u1ecf Qua<\/h2>\n\n\n\n
Nh\u00e3n EN 131 V\u00e0 M\u1ee9c T\u1ea3i 150 kg<\/h2>\n\n\n\n
![\"Thang](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/10\/thang-rut-gon-nhom-dai-loan.jpg\" "\\"\\"")
<\/figure>\n\n\n\nCh\u1ed1t Kho\u00e1 T\u1eebng \u0110\u1ed1t L\u00e0 Chi Ti\u1ebft Hay H\u1ecfng<\/h2>\n\n\n\n
D\u1ef1ng Thang Theo T\u1ec9 L\u1ec7 B\u1ed1n M\u1ed9t<\/h2>\n\n\n\n
B\u1ea3o D\u01b0\u1ee1ng \u1ed0ng L\u1ed3ng V\u00e0 Gio\u0103ng<\/h2>\n\n\n\n
![\"Thang](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/01\/Thang-nhom-rut-gon-son-la.jpg\" "\\"\\"")
<\/figure>\n\n\n\n![\"Thang](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2017\/06\/thang-nhom-rut-gon.jpg\" "\\"\\"")
<\/figure>\n","protected":false},"excerpt":{"rendered":"