{"id":9765,"date":"2019-04-22T23:05:39","date_gmt":"2019-04-22T23:05:39","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=9765"},"modified":"2019-04-22T23:05:39","modified_gmt":"2019-04-22T23:05:39","slug":"overhead-power-line-clearance-regulations","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/energy-and-power\/overhead-power-line-clearance-regulations\/","title":{"rendered":"Quy \u0111\u1ecbnh v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ee7a \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng: \u0110\u1ea3m b\u1ea3o an to\u00e0n c\u00f4ng c\u1ed9ng"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Quy \u0111\u1ecbnh v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ee7a \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng: \u0110\u1ea3m b\u1ea3o an to\u00e0n c\u00f4ng c\u1ed9ng<\/h2>\n\n<p>\u0110\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng c\u00f3 m\u1eb7t \u1edf kh\u1eafp n\u01a1i trong x\u00e3 h\u1ed9i hi\u1ec7n \u0111\u1ea1i c\u1ee7a ch\u00fang ta, cung c\u1ea5p \u0111i\u1ec7n cho c\u00e1c h\u1ed9 gia \u0111\u00ecnh, doanh nghi\u1ec7p v\u00e0 c\u1ed9ng \u0111\u1ed3ng. Tuy nhi\u00ean, nh\u1eefng \u0111\u01b0\u1eddng d\u00e2y n\u00e0y g\u00e2y ra m\u1ed1i nguy hi\u1ec3m \u0111\u00e1ng k\u1ec3 cho s\u1ef1 an to\u00e0n n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec v\u00e0 qu\u1ea3n l\u00fd \u0111\u00fang c\u00e1ch. C\u00f3 nh\u1eefng h\u01b0\u1edbng d\u1eabn nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec \u1edf \u0111\u1ed9 cao an to\u00e0n so v\u1edbi m\u1eb7t \u0111\u1ea5t v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh kh\u00e1c.<\/p>\n\n<h3 class=\"wp-block-heading\">Quy \u0111\u1ecbnh c\u1ee7a qu\u1ed1c gia v\u00e0 \u0111\u1ecba ph\u01b0\u01a1ng<\/h3>\n\n<p>B\u1ed9 lu\u1eadt \u0111i\u1ec7n qu\u1ed1c gia (NEC) v\u00e0 B\u1ed9 lu\u1eadt an to\u00e0n \u0111i\u1ec7n qu\u1ed1c gia (NESC) thi\u1ebft l\u1eadp kho\u1ea3ng c\u00e1ch an to\u00e0n t\u1ed1i thi\u1ec3u cho c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng nh\u1eb1m b\u1ea3o v\u1ec7 c\u00f4ng ch\u00fang kh\u1ecfi b\u1ecb \u0111i\u1ec7n gi\u1eadt. C\u00e1c b\u1ed9 lu\u1eadt n\u00e0y cung c\u1ea5p c\u00e1c h\u01b0\u1edbng d\u1eabn chung, nh\u01b0ng c\u00e1c v\u0103n ph\u00f2ng ki\u1ec3m tra x\u00e2y d\u1ef1ng \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t h\u01a1n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u00e0 m\u1ed1i nguy hi\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i li\u00ean h\u1ec7 v\u1edbi v\u0103n ph\u00f2ng ki\u1ec3m tra x\u00e2y d\u1ef1ng \u0111\u1ecba ph\u01b0\u01a1ng c\u1ee7a b\u1ea1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c quy t\u1eafc v\u00e0 quy \u0111\u1ecbnh ch\u00ednh x\u00e1c \u00e1p d\u1ee5ng t\u1ea1i c\u1ed9ng \u0111\u1ed3ng c\u1ee7a b\u1ea1n.<\/p>\n\n<h3 class=\"wp-block-heading\">H\u01b0\u1edbng d\u1eabn v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n cho c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3<\/h3>\n\n<h2 class=\"wp-block-heading\">V\u1ec9a h\u00e8 v\u00e0 l\u1ed1i \u0111i cho ng\u01b0\u1eddi \u0111i b\u1ed9:<\/h2>\n\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng khu v\u1ef1c ch\u1ec9 d\u00e0nh cho ng\u01b0\u1eddi \u0111i b\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ec9a h\u00e8, boong v\u00e0 hi\u00ean nh\u00e0, kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc t\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n th\u01b0\u1eddng l\u00e0 14,5 feet. Chi\u1ec1u cao n\u00e0y \u0111\u01b0\u1ee3c coi l\u00e0 \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1ed1i \u0111i an to\u00e0n cho ng\u01b0\u1eddi \u0111i b\u1ed9, ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi mang theo d\u1ee5ng c\u1ee5 ho\u1eb7c c\u00e1c v\u1eadt d\u1ee5ng kh\u00e1c. Tuy nhi\u00ean, \u1edf nh\u1eefng khu v\u1ef1c th\u01b0\u1eddng di\u1ec5n ra ho\u1ea1t \u0111\u1ed9ng c\u01b0\u1ee1i ng\u1ef1a, kho\u1ea3ng c\u00e1ch an to\u00e0n t\u1ed1i thi\u1ec3u t\u0103ng l\u00ean 16 feet \u0111\u1ec3 c\u00f3 th\u1ec3 ch\u1ee9a nh\u1eefng ng\u01b0\u1eddi c\u01b0\u1ee1i ng\u1ef1a.<\/p>\n\n<h2 class=\"wp-block-heading\">\u0110\u01b0\u1eddng l\u00e1i xe v\u00e0 b\u00e3i \u0111\u1eadu xe:<\/h2>\n\n<p>\u0110\u1ed1i v\u1edbi \u0111\u01b0\u1eddng l\u00e1i xe v\u00e0 c\u00e1c l\u1ed1i \u0111i kh\u00e1c d\u00e0nh cho xe c\u00f3 chi\u1ec1u cao d\u01b0\u1edbi 8 feet, kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc t\u1ed1i thi\u1ec3u nh\u01b0 sau:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>12 feet \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u1eabn \u0111i\u1ec7n 120-240 v\u00f4n qua \u0111\u01b0\u1eddng l\u00e1i xe d\u00e2n c\u01b0<\/li>\n<li>16 feet \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u1eabn \u0111i\u1ec7n 120-240 v\u00f4n \u0111i qua \u0111\u01b0\u1eddng l\u00e1i xe, b\u00e3i \u0111\u1eadu xe v\u00e0 h\u1ebbm<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">\u0110\u01b0\u1eddng ph\u1ed1 v\u00e0 \u0111\u01b0\u1eddng b\u1ed9 c\u00f3 ph\u01b0\u01a1ng ti\u1ec7n th\u01b0\u01a1ng m\u1ea1i:<\/h2>\n\n<p>\u0110\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 \u0111\u01b0\u1eddng l\u00e1i xe, h\u1ebbm, \u0111\u01b0\u1eddng ho\u1eb7c ph\u1ed1 n\u00e0o c\u00f3 kh\u1ea3 n\u0103ng c\u00f3 xe cao h\u01a1n 8 feet ch\u1ea1y qua, kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc t\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n l\u00e0 15,5 feet so v\u1edbi m\u1eb7t \u0111\u1ea5t t\u1ea1i \u0111i\u1ec3m th\u1ea5p nh\u1ea5t c\u1ee7a ch\u00fang.<\/p>\n\n<h2 class=\"wp-block-heading\">H\u1ed3 b\u01a1i, b\u1ed3n t\u1eafm n\u01b0\u1edbc n\u00f3ng v\u00e0 ao:<\/h2>\n\n<p>C\u00e1c d\u00e2y \u0111i\u1ec7n tr\u00ean c\u00e1c c\u00f4ng tr\u00ecnh ch\u1ee9a n\u01b0\u1edbc c\u00f3 y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n ri\u00eang:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>22 1\/2 feet \u0111\u1ed1i v\u1edbi c\u00e1c d\u00e2y \u0111i\u1ec7n tr\u00ean h\u1ed3 b\u01a1i ho\u1eb7c b\u1ed3n t\u1eafm n\u01b0\u1edbc n\u00f3ng, \u0111\u01b0\u1ee3c \u0111o \u0111\u1ebfn b\u1ec1 m\u1eb7t n\u01b0\u1edbc ho\u1eb7c ch\u00e2n c\u1ee7a b\u00e0n nh\u1ea3y<\/li>\n<li>17 feet \u0111\u1ed1i v\u1edbi c\u00e1c d\u00e2y \u0111i\u1ec7n tr\u00ean ao ho\u1eb7c h\u1ed3<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">\u0110\u01b0\u1eddng d\u00e2y li\u00ean l\u1ea1c<\/h3>\n\n<p>C\u00e1c y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y li\u00ean l\u1ea1c (\u0111i\u1ec7n tho\u1ea1i, truy\u1ec1n h\u00ecnh c\u00e1p, internet, v.v.) kh\u00e1c nhau t\u00f9y theo t\u1eebng c\u1ed9ng \u0111\u1ed3ng. Tuy nhi\u00ean, NESC cung c\u1ea5p c\u00e1c h\u01b0\u1edbng d\u1eabn chung sau:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>9 1\/2 feet \u0111\u1ed1i v\u1edbi d\u00e2y d\u1eef li\u1ec7u tr\u00ean lu\u1ed3ng giao th\u00f4ng c\u1ee7a ng\u01b0\u1eddi \u0111i b\u1ed9<\/li>\n<li>15 1\/2 feet \u0111\u1ed1i v\u1edbi d\u00e2y d\u1eef li\u1ec7u tr\u00ean lu\u1ed3ng giao th\u00f4ng c\u1ee7a ph\u01b0\u01a1ng ti\u1ec7n<\/li>\n<li>10 feet \u0111\u1ed1i v\u1edbi d\u00e2y d\u1eef li\u1ec7u tr\u00ean h\u1ed3 b\u01a1i ho\u1eb7c b\u1ed3n t\u1eafm n\u01b0\u1edbc n\u00f3ng<\/li>\n<\/ul>\n\n<p>Ngo\u00e0i ra, ph\u1ea3i c\u00f3 kho\u1ea3ng c\u00e1ch 30 inch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u00e2y li\u00ean l\u1ea1c v\u00e0 c\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u1ecbch v\u1ee5 \u0111i\u1ec7n.<\/p>\n\n<h3 class=\"wp-block-heading\">\u0110o kho\u1ea3ng c\u00e1ch an to\u00e0n v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba<\/h3>\n\n<p>Kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc t\u1ed1i thi\u1ec3u ph\u1ea3i \u0111\u01b0\u1ee3c \u0111o t\u1eeb \u0111i\u1ec3m th\u1ea5p nh\u1ea5t c\u1ee7a \u0111\u1ed9 v\u00f5ng c\u1ee7a d\u00e2y. C\u00e1c thay \u0111\u1ed5i theo m\u00f9a v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh. V\u00ed d\u1ee5, \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 tuy\u1ebft r\u01a1i d\u00e0y, c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i t\u0103ng kho\u1ea3ng c\u00e1ch an to\u00e0n trong nh\u1eefng th\u00e1ng m\u00f9a \u0111\u00f4ng \u0111\u1ec3 t\u00ednh \u0111\u1ebfn kho\u1ea3ng c\u00e1ch gi\u1ea3m t\u1eeb m\u1eb7t \u0111\u1ea5t \u0111\u1ebfn d\u00e2y d\u1eabn.<\/p>\n\n<p>\u0110i\u1ec1u b\u1eaft bu\u1ed9c l\u00e0 ph\u1ea3i nh\u1eadn bi\u1ebft c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng khi v\u1eadn h\u00e0nh m\u00e1y m\u00f3c n\u00f4ng nghi\u1ec7p, v\u00ec ti\u1ebfp x\u00fac v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y n\u00e0y c\u00f3 th\u1ec3 g\u00e2y th\u01b0\u01a1ng t\u00edch nghi\u00eam tr\u1ecdng ho\u1eb7c t\u1eed vong. C\u1ea7n v\u1eadn h\u00e0nh m\u00e1y m\u00f3c n\u00f4ng nghi\u1ec7p m\u1ed9t c\u00e1ch th\u1eadn tr\u1ecdng, \u0111\u1ea3m b\u1ea3o h\u1ea1 th\u1ea5p c\u00e1c m\u00e1y khoan v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn cao kh\u00e1c xu\u1ed1ng m\u1ee9c an to\u00e0n khi di chuy\u1ec3n d\u01b0\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n.<\/p>\n\n<p>Xe t\u1ea3i c\u00f3 th\u00f9ng l\u1eadt v\u00e0 s\u01a1 mi r\u01a1 mo\u00f3c c\u0169ng g\u00e2y ra nguy hi\u1ec3m khi th\u00f9ng l\u1eadt c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean. Ng\u01b0\u1eddi l\u00e1i xe ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f9ng l\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c h\u1ea1 xu\u1ed1ng tr\u01b0\u1edbc khi di chuy\u1ec3n xe.<\/p>\n\n<h3 class=\"wp-block-heading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a kho\u1ea3ng c\u00e1ch an to\u00e0n th\u00edch h\u1ee3p<\/h3>\n\n<p>Vi\u1ec7c duy tr\u00ec kho\u1ea3ng c\u00e1ch an to\u00e0n theo chi\u1ec1u d\u1ecdc th\u00edch h\u1ee3p cho c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng r\u1ea5t c\u1ea7n thi\u1ebft cho s\u1ef1 an to\u00e0n c\u00f4ng c\u1ed9ng. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u00e3 thi\u1ebft l\u1eadp, ch\u00fang ta c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro x\u1ea3y ra tai n\u1ea1n \u0111i\u1ec7n v\u00e0 \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111i\u1ec7n an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u1ed9ng \u0111\u1ed3ng c\u1ee7a ch\u00fang ta.<\/p>","protected":false},"excerpt":{"rendered":"<p>Quy \u0111\u1ecbnh v\u1ec1 kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ee7a \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng: \u0110\u1ea3m b\u1ea3o an to\u00e0n c\u00f4ng c\u1ed9ng \u0110\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tr\u00ean kh\u00f4ng c\u00f3 m\u1eb7t \u1edf kh\u1eafp n\u01a1i trong&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14016],"tags":[8840,14013,14015,3976,14014],"class_list":["post-9765","post","type-post","status-publish","format-standard","hentry","category-energy-and-power","tag-electrical-safety","tag-overhead-power-lines","tag-electrical-hazards","tag-public-safety","tag-clearance-regulations"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/9765","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=9765"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/9765\/revisions"}],"predecessor-version":[{"id":9766,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/9765\/revisions\/9766"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=9765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=9765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=9765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}