{"id":2459,"date":"2025-05-16T09:30:27","date_gmt":"2025-05-16T09:30:27","guid":{"rendered":"https:\/\/juyuans.com\/?p=2459"},"modified":"2025-05-17T00:57:59","modified_gmt":"2025-05-17T00:57:59","slug":"giai-ma-chat-chong-chay-va-dinh-muc-dien-ul94-v-0-5va-va-plc-duoc-giai-thich","status":"publish","type":"post","link":"https:\/\/juyuans.com\/vi\/giai-ma-chat-chong-chay-va-dinh-muc-dien-ul94-v-0-5va-va-plc-duoc-giai-thich\/","title":{"rendered":"Gi\u1ea3i m\u00e3 X\u1ebfp h\u1ea1ng Ch\u1ed1ng ch\u00e1y v\u00e0 \u0110i\u1ec7n: UL94 V-0, 5VA v\u00e0 PLC \u0111\u01b0\u1ee3c Gi\u1ea3i th\u00edch"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u:<\/span><\/span><\/h1>\n

Ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t \u0111i\u1ec7n v\u00e0 ch\u1ed1ng ch\u00e1y l\u00e0 nh\u1eefng c\u00e2n nh\u1eafc ch\u00ednh trong qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn nh\u1ef1a, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi ng\u00e0nh \u0111i\u1ec7n t\u1eed, \u0111i\u1ec7n, \u00f4 t\u00f4 v\u00e0 c\u00e1c ng\u00e0nh kh\u00e1c \u0111\u00f2i h\u1ecfi m\u1ee9c \u0111\u1ed9 an to\u00e0n cao. C\u00e1c thu\u1eadt ng\u1eef nh\u01b0 UL94 V-0, 5VA, x\u1ebfp h\u1ea1ng PLC, nhi\u1ec7t \u0111\u1ed9 RTI, v.v.<\/span> l\u00e0 ph\u1ed5 bi\u1ebfn nh\u01b0ng c\u00f3 th\u1ec3 g\u00e2y n\u1ea3n l\u00f2ng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch \u00fd ngh\u0129a th\u1ef1c s\u1ef1 c\u1ee7a c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y th\u00f4ng qua c\u00e1c v\u00ed d\u1ee5 \u0111\u1ec3 gi\u00fap b\u1ea1n nhanh ch\u00f3ng hi\u1ec3u v\u00e0 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ch\u00ednh x\u00e1c, v\u00e0 kh\u00f4ng c\u00f2n ph\u1ea3i b\u1eadn t\u00e2m \u0111\u1ebfn thu\u1eadt ng\u1eef ph\u1ee9c t\u1ea1p.<\/span><\/span><\/p>\n

\"B\u1ea2NG<\/a><\/p>\n

 <\/p>\n

01\uff5cX\u1ebfp h\u1ea1ng ch\u1ed1ng ch\u00e1y UL94 \u2013 hi\u1ec3u th\u1ebf n\u00e0o?<\/span><\/h2>\n

 <\/p>\n

UL94 l\u00e0 m\u1ed9t b\u1ed9 ti\u00eau chu\u1ea9n \u0111\u1ec3 ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u0111\u1ed1t ch\u00e1y c\u1ee7a nh\u1ef1a trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u00e1nh l\u1eeda kh\u00e1c nhau. C\u00e1c x\u1ebfp h\u1ea1ng ch\u00ednh l\u00e0 V-2, V-1, V-0 v\u00e0 c\u00e1c x\u1ebfp h\u1ea1ng cao h\u01a1n l\u00e0 5VB v\u00e0 5VA.<\/span><\/span><\/p>\n

\u00a0 \u00a0\u2714 V-0:<\/strong> V\u1eadt li\u1ec7u t\u1ef1 d\u1eadp t\u1eaft nhanh khi ch\u00e1y theo chi\u1ec1u th\u1eb3ng \u0111\u1ee9ng, kh\u00f4ng c\u00f3 gi\u1ecdt n\u00f3ng ch\u1ea3y v\u00e0 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng v\u00e0 \u0111\u1ed3 gia d\u1ee5ng.<\/span><\/span><\/p>\n

\u00a0 \u00a0\u2714 5VA:<\/strong> Kh\u00f4ng ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 d\u1eadp t\u1eaft m\u00e0 c\u00f2n ph\u1ea3i ch\u1ed1ng \u0111\u01b0\u1ee3c ng\u1ecdn l\u1eeda c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0 l\u00e0 ti\u00eau chu\u1ea9n chung cho c\u00e1c s\u1ea3n ph\u1ea9m quan tr\u1ecdng v\u1ec1 an to\u00e0n nh\u01b0 v\u1ecf \u0111i\u1ec7n v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p.<\/span><\/span><\/p>\n

G\u1ee3i \u00fd:<\/strong> N\u1ebfu s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n c\u00f3 nguy c\u01a1 ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao li\u00ean t\u1ee5c ho\u1eb7c ng\u1ecdn l\u1eeda, h\u00e3y \u01b0u ti\u00ean c\u00e1c v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u0111\u1ea1t 5VA.<\/span><\/span><\/p>\n

 <\/p>\n

02\uff5cX\u1ebfp h\u1ea1ng PLC: M\u1ed9t 'b\u1ea3ng \u0111i\u1ec3m' cho kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n<\/span><\/h2>\n

 <\/p>\n

PLC (H\u1ea1ng m\u1ee5c m\u1ee9c hi\u1ec7u su\u1ea5t)<\/strong> l\u00e0 th\u01b0\u1edbc \u0111o c\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng theo d\u00f5i \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u, c\u00f3 thang \u0111i\u1ec3m t\u1eeb 0 \u0111\u1ebfn 5, s\u1ed1 c\u00e0ng nh\u1ecf th\u00ec hi\u1ec7u su\u1ea5t c\u00e0ng cao.<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/strong><\/span>PLC 0 \u0111\u1ebfn 2:<\/strong> C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m v\u1edbi \u0111i\u1ec7n \u00e1p nh\u01b0 \u0111\u1ea7u n\u1ed1i, r\u01a1 le, v\u1ecf m\u00e1y bi\u1ebfn \u00e1p, v.v.<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/strong><\/span>PLC 5:<\/strong> D\u00e0nh cho c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u ho\u1eb7c nh\u1ef1a th\u00f4ng d\u1ee5ng c\u00f3 y\u00eau c\u1ea7u th\u1ea5p h\u01a1n v\u1ec1 dung sai \u0111i\u1ec7n \u00e1p.<\/span><\/span><\/p>\n

V\u00ed d\u1ee5, Celanese PBT 3316<\/a> th\u1ef1c hi\u1ec7n \u1edf PLC 2 trong th\u1eed nghi\u1ec7m CTI, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 cung c\u1ea5p hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i trong m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n \u00e1p cao.<\/span><\/span><\/p>\n

 <\/p>\n

<\/span>03\uff5cRTI v\u00e0 HDT: \u0110\u1eebng nh\u1ea7m l\u1eabn hi\u1ec7u su\u1ea5t ng\u1eafn h\u1ea1n v\u1edbi \u0111\u1ed9 tin c\u1eady d\u00e0i h\u1ea1n<\/span><\/h2>\n

 <\/p>\n

T\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a nhi\u1ec1u v\u1eadt li\u1ec7u c\u00f3 v\u1ebb \u1ea5n t\u01b0\u1ee3ng, nh\u01b0ng \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ph\u00e2n bi\u1ec7t ch\u00fang:<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/span>RTI (Ch\u1ec9 s\u1ed1 nhi\u1ec7t t\u01b0\u01a1ng \u0111\u1ed1i):<\/strong> \u0110o nhi\u1ec7t \u0111\u1ed9 m\u00e0 v\u1eadt li\u1ec7u s\u1ebd kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng trong th\u1eddi gian d\u00e0i v\u00e0 \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i: t\u00e1c \u0111\u1ed9ng \u0111i\u1ec7n, t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ea5u tr\u00fac.<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/span>HDT (Nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t):<\/strong> \u0110\u00e1nh gi\u00e1 \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t trong th\u1eddi gian ng\u1eafn.<\/span><\/span><\/p>\n

V\u00ed d\u1ee5, m\u1ed9t s\u1ed1 lo\u1ea1i nh\u1ef1a PBT gia c\u1ed1, v\u1edbi gi\u00e1 tr\u1ecb RTI l\u00ean t\u1edbi 140\u00b0C tr\u1edf l\u00ean, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea7n t\u1ecfa nhi\u1ec7t li\u00ean t\u1ee5c, trong khi gi\u00e1 tr\u1ecb HDT ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac c\u00f3 d\u1ec5 b\u1ecb bi\u1ebfn d\u1ea1ng hay kh\u00f4ng.<\/span><\/span><\/p>\n

 <\/p>\n

<\/span>04\uff5c\u0110\u1ed9 h\u00fat n\u01b0\u1edbc kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t con s\u1ed1 \u2013 n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 an to\u00e0n c\u1ee7a k\u1ebft c\u1ea5u<\/span><\/h2>\n

 <\/p>\n

M\u1ed9t s\u1ed1 lo\u1ea1i nh\u1ef1a, ch\u1eb3ng h\u1ea1n nh\u01b0 nylon (PA), c\u00f3 xu h\u01b0\u1edbng h\u1ea5p th\u1ee5 \u0111\u1ed9 \u1ea9m v\u00e0 n\u1edf ra trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 \u0111i\u1ec7n. M\u1eb7t kh\u00e1c, c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 PBT gia c\u1ed1 s\u1ee3i th\u1ee7y tinh c\u00f3 t\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 n\u01b0\u1edbc th\u1ea5p t\u1edbi 0,07%, cho ph\u00e9p ch\u00fang duy tr\u00ec kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt.<\/span><\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c \u0111\u1ea7u n\u1ed1i ho\u1eb7c linh ki\u1ec7n \u0111i\u1ec7n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111\u01b0\u1ee3c l\u1eafp v\u00e0o v\u00e0 th\u00e1o ra nhi\u1ec1u l\u1ea7n, v\u1eadt li\u1ec7u \u00edt th\u1ea5m n\u01b0\u1edbc c\u00f3 kh\u1ea3 n\u0103ng duy tr\u00ec dung sai v\u00e0 \u0111\u1ed9 tin c\u1eady ti\u1ebfp x\u00fac t\u1ed1t h\u01a1n.<\/span><\/span><\/p>\n

 <\/p>\n

05\uff5cPh\u1ee5 gia: Kh\u00f4ng \u0111\u1ec3 ch\u1ea5t ch\u1ed1ng ch\u00e1y 'tho\u00e1t ra'<\/span><\/h2>\n

 <\/p>\n

V\u1eadt li\u1ec7u ch\u1ed1ng ch\u00e1y halogen th\u00f4ng th\u01b0\u1eddng d\u1ec5 b\u1ecb di c\u01b0<\/strong> c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 b\u1ec1 m\u1eb7t d\u00ednh, k\u1ebft t\u1ee7a ho\u1eb7c \u0111\u1ed5i m\u00e0u. V\u1eadt li\u1ec7u nh\u01b0 PBT 3316<\/a>, \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u 'kh\u00f4ng di c\u01b0<\/strong>', c\u00f3 thi\u1ebft k\u1ebf b\u00f4i tr\u01a1n v\u00e0 c\u00f4ng th\u1ee9c t\u1ed1i \u01b0u, cho ph\u00e9p ch\u00fang duy tr\u00ec v\u1ebb ngo\u00e0i \u0111\u1eb9p m\u1eaft v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh khi s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/span><\/span><\/p>\n

 <\/p>\n

06\uff5cC\u00f2n c\u00e1c b\u1eadc HWI, HAI, HVTR v\u00e0 c\u00e1c b\u1eadc kh\u00e1c th\u00ec sao?<\/span><\/h2>\n

 <\/p>\n

Ngo\u00e0i UL94 v\u00e0 PLC th\u00f4ng th\u01b0\u1eddng, lo\u1ea1t UL 746 c\u00f2n bao g\u1ed3m:<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/span>HWI (Ch\u1ec9 s\u1ed1 \u0111i\u1ec7n tr\u1edf h\u1ed3 quang \u0111i\u1ec7n \u00e1p cao):<\/strong> Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i s\u1ef1 c\u1ed1 h\u1ed3 quang c\u1ee7a v\u1eadt li\u1ec7u.<\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/span>HAI (Ch\u1ec9 s\u1ed1 l\u00e3o h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 cao):<\/strong> Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 suy gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao trong th\u1eddi gian d\u00e0i.<\/span><\/span><\/p>\n

\u00a0 \u00a0\u2714 <\/span>HVTR (\u0110i\u1ec7n tr\u1edf theo d\u00f5i \u0111i\u1ec7n \u00e1p cao):<\/strong> Bi\u1ec3u th\u1ecb kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 \u0111i\u1ec7n c\u1ee7a b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u.<\/span><\/span><\/p>\n

Nh\u1eefng d\u1eef li\u1ec7u n\u00e0y ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c coi tr\u1ecdng trong thi\u1ebft k\u1ebf \u0111\u1ea7u n\u1ed1i v\u00e0 v\u1ecf \u0111i\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c c\u1ea5u tr\u00fac nhi\u1ec1u ch\u00e2n c\u00f3 m\u1eadt \u0111\u1ed9 cao, n\u01a1i ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ec9 b\u00e1o \u201cv\u00f4 h\u00ecnh nh\u01b0ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi an to\u00e0n\u201d.<\/span><\/span><\/p>\n

 <\/p>\n

<\/span>07 | K\u1ebft lu\u1eadn:<\/span><\/h2>\n

Cho d\u00f9 b\u1ea1n \u0111ang mua PBT, PA, PC, PP hay c\u00e1c v\u1eadt li\u1ec7u nh\u1ef1a kh\u00e1c, th\u00ec x\u1ebfp h\u1ea1ng ch\u1ed1ng ch\u00e1y, t\u00ednh ch\u1ea5t \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng an to\u00e0n l\u00e2u d\u00e0i. Hi\u1ec3u \u0111\u00fang c\u00e1c th\u00f4ng s\u1ed1 nh\u01b0 UL94, PLC v\u00e0 RTI s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c r\u1ee7i ro ngay t\u1eeb giai \u0111o\u1ea1n \u0111\u1ea7u l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a s\u1ea3n ph\u1ea9m.<\/span><\/p>\n

N\u1ebfu b\u1ea1n c\u1ea7n l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u nh\u1ef1a theo ng\u00e0nh, \u1ee9ng d\u1ee5ng ho\u1eb7c ti\u00eau chu\u1ea9n, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u chuy\u00ean nghi\u1ec7p v\u00e0 h\u1ed7 tr\u1ee3 m\u1eabu. Ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n gi\u1ea3i ph\u00e1p v\u1eadt li\u1ec7u to\u00e0n chu\u1ed7i cho thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u c\u1ee7a b\u1ea1n.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Introduction: Flame retardant and electrical performance indicators are key considerations in the plastics selection process, especially for electronics, electrical, automotive, and other industries that require high levels of safety. Terms such as UL94 V-0, 5VA, PLC rating, RTI temperature, etc. are common but can be discouraging. In this article, we will explain the real meaning […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2459","post","type-post","status-publish","format-standard","hentry","category-blog"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts\/2459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/comments?post=2459"}],"version-history":[{"count":0,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts\/2459\/revisions"}],"wp:attachment":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/media?parent=2459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/categories?post=2459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/tags?post=2459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}