{"id":599,"date":"2025-12-09T15:41:32","date_gmt":"2025-12-09T15:41:32","guid":{"rendered":"https:\/\/ninhson-vn.com\/?p=599"},"modified":"2025-12-09T15:41:32","modified_gmt":"2025-12-09T15:41:32","slug":"cac-cap-do-chong-chay-ul94-trong-hat-nhua","status":"publish","type":"post","link":"https:\/\/ninhson-vn.com\/?p=599","title":{"rendered":"C\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 trong h\u1ea1t nh\u1ef1a."},"content":{"rendered":"

C\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 \u2013 Ti\u00eau Chu\u1ea9n, \u0110\u1eb7c T\u00ednh & Ph\u00e2n Lo\u1ea1i Chi Ti\u1ebft<\/strong><\/h1>\n

UL94<\/strong> l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y<\/strong> c\u1ee7a nh\u1ef1a v\u00e0 v\u1eadt li\u1ec7u polymer, \u0111\u01b0\u1ee3c ban h\u00e0nh b\u1edfi t\u1ed5 ch\u1ee9c UL (Underwriters Laboratories \u2013 Hoa K\u1ef3)<\/strong>. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n quan tr\u1ecdng trong ng\u00e0nh khu\u00f4n m\u1eabu, \u0111i\u1ec7n \u2013 \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb gia d\u1ee5ng, \u00f4 t\u00f4, v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y cao.<\/p>\n

\n

1. UL l\u00e0 g\u00ec?<\/strong><\/h1>\n

UL \u2013 Underwriters Laboratories<\/strong> \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp t\u1eeb n\u0103m 1894<\/strong> t\u1ea1i Hoa K\u1ef3. Ti\u1ec1n th\u00e2n l\u00e0 m\u1ed9t t\u1ed5 ch\u1ee9c \u0111\u01b0\u1ee3c l\u1eadp ra b\u1edfi ng\u00e0nh b\u1ea3o hi\u1ec3m \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 an to\u00e0n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 ph\u00f2ng tr\u00e1nh ch\u00e1y n\u1ed5.<\/p>\n

Ng\u00e0y nay UL l\u00e0 t\u1ed5 ch\u1ee9c phi l\u1ee3i nhu\u1eadn<\/strong>, chuy\u00ean \u0111\u00e1nh gi\u00e1 v\u00e0 ch\u1ee9ng nh\u1eadn an to\u00e0n v\u1edbi ph\u01b0\u01a1ng ch\u00e2m:<\/p>\n

UL c\u00f3 h\u01a1n 800 danh m\u1ee5c<\/strong> th\u1eed nghi\u1ec7m, trong \u0111\u00f3 UL94<\/strong> l\u00e0 ti\u00eau chu\u1ea9n quan tr\u1ecdng nh\u1ea5t v\u1ec1:<\/p>\n

    \n
  • \n

    \u0110\u1ed9 ch\u00e1y (flammability)<\/p>\n<\/li>\n

  • \n

    Kh\u1ea3 n\u0103ng t\u1ef1 t\u1eaft<\/p>\n<\/li>\n

  • \n

    Kh\u1ea3 n\u0103ng ng\u0103n ng\u1ecdn l\u1eeda lan truy\u1ec1n<\/p>\n<\/li>\n<\/ul>\n

    \n

    2. UL94 \u2013 Ti\u00eau chu\u1ea9n \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y c\u1ee7a nh\u1ef1a<\/strong><\/h1>\n

    UL94 ph\u00e2n chia th\u00e0nh nhi\u1ec1u c\u1ea5p \u0111\u1ed9, t\u1eeb th\u1ea5p \u2192 cao<\/strong>, g\u1ed3m:<\/p>\n

    \n
    \n\n\n\n\n\n\n\n\n\n\n
    M\u1ee9c ch\u1ed1ng ch\u00e1y<\/th>\nC\u1ea5p \u0111\u1ed9<\/th>\n<\/tr>\n<\/thead>\n
    Th\u1ea5p<\/td>\nUL94 HB<\/td>\n<\/tr>\n
    Trung b\u00ecnh<\/td>\nUL94 V-2<\/td>\n<\/tr>\n
    T\u1ed1t<\/td>\nUL94 V-1<\/td>\n<\/tr>\n
    R\u1ea5t t\u1ed1t<\/td>\nUL94 V-0<\/td>\n<\/tr>\n
    Cao c\u1ea5p<\/td>\nUL94 5VB<\/td>\n<\/tr>\n
    Cao nh\u1ea5t<\/td>\nUL94 5VA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    3. UL94 HB \u2013 Th\u1eed nghi\u1ec7m \u0111\u1ed1t ngang (Horizontal Burning Test)<\/strong><\/h1>\n

    \u0110\u00e2y l\u00e0 c\u1ea5p th\u1ea5p nh\u1ea5t<\/strong>, kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 d\u1eadp t\u1eaft.<\/p>\n

    Ph\u01b0\u01a1ng ph\u00e1p th\u1eed<\/strong><\/h3>\n
      \n
    • \n

      M\u1eabu th\u1eed \u0111\u01b0\u1ee3c \u0111\u1eb7t n\u1eb1m ngang<\/strong>.<\/p>\n<\/li>\n

    • \n

      \u0110\u1ed1t trong 30 gi\u00e2y<\/strong> b\u1eb1ng \u0111\u00e8n kh\u00f2.<\/p>\n<\/li>\n

    • \n

      \u0110o t\u1ed1c \u0111\u1ed9 lan ch\u00e1y<\/strong>.<\/p>\n<\/li>\n<\/ul>\n

      \u0110i\u1ec1u ki\u1ec7n \u0111\u1ea1t UL94 HB<\/strong><\/h3>\n

      M\u1eabu \u0111\u1ea1t m\u1ed9t trong 3 y\u00eau c\u1ea7u:<\/p>\n

        \n
      1. \n

        \u0110\u1ed9 d\u00e0y 3.05\u20133.81 mm<\/strong> \u2192 t\u1ed1c \u0111\u1ed9 ch\u00e1y \u2264 38.1 mm\/ph\u00fat<\/strong><\/p>\n<\/li>\n

      2. \n

        \u0110\u1ed9 d\u00e0y < 3.05 mm<\/strong> \u2192 t\u1ed1c \u0111\u1ed9 ch\u00e1y \u2264 76.2 mm\/ph\u00fat<\/strong><\/p>\n<\/li>\n

      3. \n

        M\u1eabu t\u1ef1 t\u1eaft tr\u01b0\u1edbc khi l\u1eeda lan \u0111\u1ebfn 101.6 mm<\/strong><\/p>\n<\/li>\n<\/ol>\n

        \n

        4. UL94 V-0 \/ V-1 \/ V-2 \u2013 Th\u1eed nghi\u1ec7m \u0111\u1ed1t \u0111\u1ee9ng (Vertical Burning Test)<\/strong><\/h1>\n

        Ph\u01b0\u01a1ng ph\u00e1p th\u1eed<\/strong><\/h3>\n
          \n
        • \n

          M\u1eabu \u0111\u1eb7t th\u1eb3ng \u0111\u1ee9ng<\/strong>.<\/p>\n<\/li>\n

        • \n

          \u0110\u1ed1t 10 gi\u00e2y<\/strong>, t\u1eaft \u2192 \u0111\u1ed1t l\u1ea1i th\u00eam 10 gi\u00e2y<\/strong>.<\/p>\n<\/li>\n

        • \n

          \u0110\u00e1nh gi\u00e1 theo:<\/p>\n

            \n
          • \n

            Th\u1eddi gian ch\u00e1y c\u00f2n l\u1ea1i<\/p>\n<\/li>\n

          • \n

            T\u00ecnh tr\u1ea1ng ch\u1ea3y nh\u1ecf gi\u1ecdt (drip)<\/p>\n<\/li>\n

          • \n

            Kh\u1ea3 n\u0103ng g\u00e2y ch\u00e1y t\u1ea5m b\u00f4ng d\u01b0\u1edbi m\u1eabu<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

            B\u1ea3ng so s\u00e1nh chi ti\u1ebft<\/strong><\/h3>\n
            \n
            \n\n\n\n\n\n\n\n\n\n
            Ti\u00eau ch\u00ed<\/th>\nUL94 V-2<\/th>\nUL94 V-1<\/th>\nUL94 V-0<\/th>\n<\/tr>\n<\/thead>\n
            Th\u1eddi gian ch\u00e1y sau m\u1ed7i l\u1ea7n \u0111\u1ed1t<\/td>\n\u226430 s<\/td>\n\u226430 s<\/td>\n\u226410 s<\/td>\n<\/tr>\n
            T\u1ed5ng th\u1eddi gian ch\u00e1y sau 10 l\u1ea7n \u0111\u1ed1t<\/td>\n\u2264250 s<\/td>\n\u2264250 s<\/td>\n\u226450 s<\/td>\n<\/tr>\n
            Ch\u00e1y lan t\u1edbi k\u1eb9p gi\u1eef m\u1eabu<\/td>\nKh\u00f4ng cho ph\u00e9p<\/td>\nKh\u00f4ng cho ph\u00e9p<\/td>\nKh\u00f4ng cho ph\u00e9p<\/td>\n<\/tr>\n
            Ch\u1ea3y gi\u1ecdt g\u00e2y ch\u00e1y cotton<\/td>\nCho ph\u00e9p<\/strong><\/td>\nKh\u00f4ng<\/td>\nKh\u00f4ng<\/td>\n<\/tr>\n
            Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y<\/td>\nTrung b\u00ecnh<\/td>\nT\u1ed1t<\/td>\nR\u1ea5t t\u1ed1t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
            \n

            5. UL94 5VB & 5VA \u2013 C\u1ea5p ch\u1ed1ng ch\u00e1y cao nh\u1ea5t<\/strong><\/h1>\n

            \u0110\u00e2y l\u00e0 c\u1ea5p d\u00e0nh cho c\u00e1c s\u1ea3n ph\u1ea9m y\u00eau c\u1ea7u \u0111\u1ed9 an to\u00e0n tuy\u1ec7t \u0111\u1ed1i<\/strong>:<\/p>\n

              \n
            • \n

              Thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p<\/p>\n<\/li>\n

            • \n

              V\u1ecf m\u00e1y \u0111i\u1ec7n t\u1eed cao c\u1ea5p<\/p>\n<\/li>\n

            • \n

              Linh ki\u1ec7n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao<\/p>\n<\/li>\n<\/ul>\n

              Ph\u01b0\u01a1ng ph\u00e1p th\u1eed<\/strong><\/h3>\n
                \n
              • \n

                T\u01b0\u01a1ng t\u1ef1 V-0\/V-1\/V-2 nh\u01b0ng s\u1eed d\u1ee5ng ng\u1ecdn l\u1eeda m\u1ea1nh g\u1ea5p 10 l\u1ea7n<\/strong>.<\/p>\n<\/li>\n

              • \n

                Th\u1eed th\u00eam b\u00e0i Pluck Test<\/strong> (th\u1eed ph\u00e1 h\u1ee7y b\u1eb1ng l\u1eeda).<\/p>\n<\/li>\n<\/ul>\n

                \u0110i\u1ec1u ki\u1ec7n \u0111\u1ea1t<\/strong><\/h3>\n

                UL94 5VB<\/strong><\/h4>\n

                Ph\u1ea3i \u0111\u1ea1t t\u1ea5t c\u1ea3:<\/p>\n

                  \n
                • \n

                  Th\u1eddi gian ch\u00e1y sau 5 l\u1ea7n \u0111\u1ed1t: \u226460 s<\/p>\n<\/li>\n

                • \n

                  Kh\u00f4ng c\u00f3 ch\u1ea3y gi\u1ecdt<\/p>\n<\/li>\n

                • \n

                  Kh\u00f4ng b\u1ecb th\u1ee7ng \u0111\u00e1ng k\u1ec3 t\u1ea1i v\u00f9ng ti\u1ebfp x\u00fac l\u1eeda<\/p>\n<\/li>\n<\/ul>\n

                  UL94 5VA<\/strong> (Cao nh\u1ea5t)<\/h4>\n

                  Ph\u1ea3i \u0111\u1ea1t th\u00eam \u0111i\u1ec1u ki\u1ec7n:<\/p>\n

                    \n
                  • \n

                    Kh\u00f4ng b\u1ecb th\u1ee7ng<\/strong> sau 5 l\u1ea7n \u0111\u1ed1t 5 gi\u00e2y (Pluck Test)<\/p>\n<\/li>\n<\/ul>\n

                    \n

                    6. M\u1ee9c \u1ee9ng d\u1ee5ng c\u1ee7a c\u00e1c c\u1ea5p \u0111\u1ed9 UL94<\/strong><\/h1>\n
                    \n
                    \n\n\n\n\n\n\n\n\n\n\n
                    C\u1ea5p \u0111\u1ed9<\/th>\n\u1ee8ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
                    HB<\/strong><\/td>\nBao b\u00ec, s\u1ea3n ph\u1ea9m kh\u00f4ng y\u00eau c\u1ea7u ch\u1ed1ng ch\u00e1y<\/td>\n<\/tr>\n
                    V-2<\/strong><\/td>\nThi\u1ebft b\u1ecb gia d\u1ee5ng c\u01a1 b\u1ea3n<\/td>\n<\/tr>\n
                    V-1<\/strong><\/td>\nLinh ki\u1ec7n \u0111i\u1ec7n t\u1eed th\u00f4ng th\u01b0\u1eddng<\/td>\n<\/tr>\n
                    V-0<\/strong><\/td>\nV\u1ecf m\u00e1y \u0111i\u1ec7n, thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p, linh ki\u1ec7n \u00f4 t\u00f4<\/td>\n<\/tr>\n
                    5VB<\/strong><\/td>\nS\u1ea3n ph\u1ea9m c\u1ea7n ch\u1ed1ng ch\u00e1y cao<\/td>\n<\/tr>\n
                    5VA<\/strong><\/td>\nThi\u1ebft b\u1ecb an to\u00e0n, thi\u1ebft b\u1ecb \u0111i\u1ec7n cao c\u1ea5p, v\u1ecf thi\u1ebft b\u1ecb ch\u1ecbu nhi\u1ec7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
                    \n

                    7. T\u1ed5ng k\u1ebft\u00a0<\/strong><\/h1>\n
                      \n
                    • \n

                      UL94 l\u00e0 ti\u00eau chu\u1ea9n quan tr\u1ecdng \u0111\u00e1nh gi\u00e1 m\u1ee9c ch\u1ed1ng ch\u00e1y c\u1ee7a nh\u1ef1a<\/strong><\/p>\n<\/li>\n

                    • \n

                      C\u00e1c c\u1ea5p \u0111\u1ed9 t\u1eeb th\u1ea5p \u0111\u1ebfn cao: HB \u2192 V2 \u2192 V1 \u2192 V0 \u2192 5VB \u2192 5VA<\/strong><\/p>\n<\/li>\n

                    • \n

                      C\u1ea5p V-0<\/strong> tr\u1edf l\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u trong khu\u00f4n nh\u1ef1a k\u1ef9 thu\u1eadt<\/strong>, linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 c\u00f4ng nghi\u1ec7p<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                      C\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 \u2013 Ti\u00eau Chu\u1ea9n, \u0110\u1eb7c T\u00ednh & Ph\u00e2n Lo\u1ea1i Chi Ti\u1ebft UL94 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y c\u1ee7a nh\u1ef1a v\u00e0 v\u1eadt li\u1ec7u polymer, \u0111\u01b0\u1ee3c ban h\u00e0nh b\u1edfi t\u1ed5 ch\u1ee9c UL (Underwriters Laboratories \u2013 Hoa K\u1ef3). \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n quan tr\u1ecdng trong ng\u00e0nh khu\u00f4n….<\/p>\n","protected":false},"author":2,"featured_media":600,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"\nC\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 trong h\u1ea1t nh\u1ef1a. - C\u00d4NG TY TNHH TH\u01af\u01a0NG M\u1ea0I D\u1ecaCH V\u1ee4 V\u00c0 S\u1ea2N PH\u1ea8M NINH S\u01a0N<\/title>\n<meta name=\"description\" content=\"UL94 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y c\u1ee7a nh\u1ef1a \u0111\u01b0\u1ee3c ban h\u00e0nh b\u1edfi t\u1ed5 ch\u1ee9c UL (Underwriters Laboratories \u2013 Hoa K\u1ef3)\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 trong h\u1ea1t nh\u1ef1a.\" \/>\n<meta property=\"og:description\" content=\"UL94 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y c\u1ee7a nh\u1ef1a \u0111\u01b0\u1ee3c ban h\u00e0nh b\u1edfi t\u1ed5 ch\u1ee9c UL (Underwriters Laboratories \u2013 Hoa K\u1ef3)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ninhson-vn.com\/?p=599\" \/>\n<meta property=\"og:site_name\" content=\"C\u00d4NG TY TNHH TH\u01af\u01a0NG M\u1ea0I D\u1ecaCH V\u1ee4 V\u00c0 S\u1ea2N PH\u1ea8M NINH S\u01a0N\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-09T15:41:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ninhson-vn.com\/wp-content\/uploads\/z7310186706295_03edb0c1977cd317277d08664f1a3d21.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"536\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ninhson-vn.com\/?p=599\",\"url\":\"https:\/\/ninhson-vn.com\/?p=599\",\"name\":\"C\u00e1c C\u1ea5p \u0110\u1ed9 Ch\u1ed1ng Ch\u00e1y UL94 trong h\u1ea1t nh\u1ef1a. - 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