{"id":2934,"date":"2026-07-09T17:51:24","date_gmt":"2026-07-09T17:51:24","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=2934"},"modified":"2026-07-09T17:51:26","modified_gmt":"2026-07-09T17:51:26","slug":"how-many-watts-on-a-15-amp-circuit","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/vi\/blog\/how-many-watts-on-a-15-amp-circuit\/","title":{"rendered":"C\u00f3 bao nhi\u00eau Watts tr\u00ean m\u1ed9t m\u1ea1ch 15 Amp?"},"content":{"rendered":"<p>M\u00f9a \u0111\u00f4ng n\u0103m ngo\u00e1i, m\u1ed9t c\u01b0 d\u00e2n Chicago \u0111\u00e3 c\u1eafm m\u1ed9t m\u00e1y s\u01b0\u1edfi 1.500 watt trong ph\u00f2ng kh\u00e1ch v\u00e0 b\u1eadt tivi c\u00f9ng m\u1ed9t chi\u1ebfc \u0111\u00e8n. Sau 20 ph\u00fat, c\u0103n ph\u00f2ng ch\u00ecm v\u00e0o b\u00f3ng t\u1ed1i. C\u1ea7u dao \u0111i\u1ec7n c\u00f3 \u0111\u1ecbnh m\u1ee9c 15 amp \u0111\u00e3 ng\u1eaft, v\u00e0 \u0111i\u1ec1u n\u00e0y kh\u00f4ng ph\u1ea3i do b\u1ea5t k\u1ef3 khi\u1ebfm khuy\u1ebft n\u00e0o m\u00e0 v\u00ec n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 mong mu\u1ed1n. T\u1ea3i qu\u00e1 cao \u0111\u1ed1i v\u1edbi m\u1ed9t c\u1ea7u dao \u0111\u1ec3 x\u1eed l\u00fd, v\u00e0 ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e3 b\u1ecb t\u1eaft \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u00e2y c\u00e1p ph\u00eda sau t\u01b0\u1eddng. C\u00f3 bao nhi\u00eau watt c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o m\u1ed9t m\u1ea1ch v\u1edbi 15 amp l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi r\u1ea5t ph\u1ed5 bi\u1ebfn. C\u00e2u tr\u1ea3 l\u1eddi th\u00ec \u0111\u01a1n gi\u1ea3n, nh\u01b0ng b\u1ee9c tranh t\u1ed5ng th\u1ec3 th\u00ec ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u; n\u00f3 li\u00ean quan \u0111\u1ebfn quy t\u1eafc 80%, v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ea3i li\u00ean t\u1ee5c v\u00e0 c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u00e2y c\u00e1ch \u0111i\u1ec7n.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2936\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/The-Basic-Calculation-Amps-\u00d7-Volts-Watts.webp\" alt=\"T\u00ednh To\u00e1n C\u01a1 B\u1ea3n Ampe \u00d7 Volt = Watt\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Ph\u00e9p T\u00ednh C\u01a1 B\u1ea3n: Amps \u00d7 Volts = Watts<\/h2>\n<p>M\u1ed9t m\u1ea1ch 15 amp c\u00f3 m\u1ed9t c\u00f4ng su\u1ea5t t\u1ed1i \u0111a l\u00fd thuy\u1ebft nh\u1ea5t \u0111\u1ecbnh, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ee9c \u0111i\u1ec7n \u00e1p. \u1ede B\u1eafc M\u1ef9, c\u1ea7u dao \u0111i\u1ec7n \u0111\u01a1n c\u1ef1c 15 amp th\u00f4ng th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf 120 volt. C\u00f4ng th\u1ee9c \u0111\u1ec3 t\u00ecm c\u00f4ng su\u1ea5t t\u1ed1i \u0111a c\u1ee7a n\u00f3 l\u00e0:<\/p>\n<p><strong>Watts = Amps \u00d7 Volts<\/strong><\/p>\n<p><strong>800 watt = 15 amp \u00d7 120 volt<\/strong><\/p>\n<p>\u1ede ch\u00e2u \u00c2u v\u00e0 V\u01b0\u01a1ng qu\u1ed1c Anh, m\u1ea1ch 15 amp ch\u1ea1y \u1edf 230 volt cung c\u1ea5p 3.450 watt \u0111i\u1ec7n. M\u1ea1ch \u1edf \u00dac v\u00e0 New Zealand ho\u1ea1t \u0111\u1ed9ng theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1 s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng amp v\u00e0 c\u00f9ng m\u1ed9t \u0111i\u1ec7n \u00e1p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00f9ng c\u00f4ng su\u1ea5t 3.450 watt. \u0110i\u1ec1u \u0111ang gi\u00fap trong t\u00ecnh hu\u1ed1ng n\u00e0y l\u00e0 \u0111i\u1ec7n \u00e1p v\u00ec n\u00f3 l\u00e0 y\u1ebfu t\u1ed1 cung c\u1ea5p c\u00f4ng su\u1ea5t t\u1ed1i \u0111a. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y c\u00f4ng su\u1ea5t t\u1ed1i \u0111a l\u00fd thuy\u1ebft cho c\u00e1c m\u1ea1ch 15 amp \u1edf c\u00e1c \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i tr\u00ean th\u1ebf gi\u1edbi.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u1ee8ng d\u1ee5ng ch\u00ednh<\/th>\n<th>D\u00f2ng \u0110i\u1ec7n M\u1ea1ch<\/th>\n<th>C\u00f4ng Su\u1ea5t T\u1ed1i \u0110a L\u00fd Thuy\u1ebft<\/th>\n<th>Khu V\u1ef1c \u0110i\u1ec3n H\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>120 V<\/td>\n<td>15 A<\/td>\n<td>800 W<\/td>\n<td>B\u1eafc M\u1ef9<\/td>\n<\/tr>\n<tr>\n<td>230 V<\/td>\n<td>15 A<\/td>\n<td>450 W<\/td>\n<td>V\u01b0\u01a1ng qu\u1ed1c Anh, Ch\u00e2u \u00c2u, \u00dac, New Zealand<\/td>\n<\/tr>\n<tr>\n<td>240 V (\u0111\u00f4i c\u1ef1c)<\/td>\n<td>15 A<\/td>\n<td>600 W<\/td>\n<td>B\u1eafc M\u1ef9 (thi\u1ebft b\u1ecb l\u1edbn)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tuy nhi\u00ean, gi\u00e1 tr\u1ecb t\u1ed1i \u0111a l\u00fd thuy\u1ebft n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 gi\u00e1 tr\u1ecb n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u1ee9ng d\u1ee5ng. B\u1ed9 Quy T\u1eafc \u0110i\u1ec7n Qu\u1ed1c Gia (NEC) v\u00e0 c\u00e1c quy t\u1eafc d\u00e2y \u0111i\u1ec7n t\u01b0\u01a1ng t\u1ef1 \u1edf ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a th\u1ebf gi\u1edbi cung c\u1ea5p m\u1ed9t quy t\u1eafc quan tr\u1ecdng c\u1ea7n xem x\u00e9t, \u0111\u00f3 l\u00e0 quy t\u1eafc 80% cho t\u1ea3i li\u00ean t\u1ee5c. Hi\u1ec7p h\u1ed9i B\u1ea3o v\u1ec7 Ch\u00e1y Qu\u1ed1c gia (NFPA), c\u01a1 quan xu\u1ea5t b\u1ea3n NEC, cho bi\u1ebft t\u1ea3i li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 m\u1ed9t t\u1ea3i, ho\u1ea1t \u0111\u1ed9ng trong h\u01a1n ba gi\u1edd, v\u00e0 \u00e1p \u0111\u1eb7t gi\u1edbi h\u1ea1n r\u1eb1ng t\u1ea3i n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 80% c\u1ee7a \u0111\u1ecbnh m\u1ee9c c\u1ee7a c\u1ea7u dao. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 trong m\u1ed9t m\u1ea1ch c\u00f3 \u0111i\u1ec7n \u00e1p 120 volt v\u00e0 d\u00f2ng \u0111i\u1ec7n 15 amp, t\u1ea3i li\u00ean t\u1ee5c t\u1ed1i \u0111a b\u1eb1ng 12 amp, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 1.440 watt. Trong m\u1ed9t m\u1ea1ch 230 volt, t\u1ea3i li\u00ean t\u1ee5c t\u1ed1i \u0111a b\u1eb1ng 2.760 watt. V\u00ed d\u1ee5, m\u1ed9t m\u00e1y s\u01b0\u1edfi, m\u00e1y s\u01b0\u1edfi b\u1ec3 c\u00e1, ho\u1eb7c gi\u00e1 \u0111\u1ee1 m\u00e1y ch\u1ee7 n\u00ean tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t gi\u1edbi h\u1ea1n n\u00e0y. Trong tr\u01b0\u1eddng h\u1ee3p t\u1ea3i kh\u00f4ng li\u00ean t\u1ee5c, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y n\u01b0\u1edbng b\u00e1nh, m\u00e1y s\u1ea5y t\u00f3c, l\u00f2 vi s\u00f3ng, v.v., c\u00f3 th\u1ec3 \u0111\u1ea1t g\u1ea7n \u0111\u1ebfn m\u1ee9c t\u1ed1i \u0111a l\u00fd thuy\u1ebft, nh\u01b0ng b\u1ea5t ch\u1ea5p \u0111i\u1ec1u n\u00e0y, ph\u1ea7n t\u1eed ng\u1eaft nhi\u1ec7t c\u1ee7a c\u1ea7u dao s\u1ebd ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2937\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/The-Protective-Devices-on-a-15-Amp-Circuit.webp\" alt=\"C\u00e1c Thi\u1ebft B\u1ecb B\u1ea3o V\u1ec7 tr\u00ean M\u1ea1ch 15 Amp\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>C\u00e1c Thi\u1ebft B\u1ecb B\u1ea3o V\u1ec7 tr\u00ean M\u1ea1ch 15 Amp<\/h2>\n<p>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c m\u1ea1ch 15 amp \u0111\u1ec1u c\u00f3 c\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7. B\u1ed9 ng\u1eaft m\u1ea1ch ho\u1eb7c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong h\u1ed9p \u1edf ph\u00eda sau t\u1ef1 \u0111\u1ed9ng ng\u1eaft khi d\u00f2ng \u0111i\u1ec7n \u0111\u1ea1t 15 amp. C\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau cung c\u1ea5p c\u00e1c m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 kh\u00e1c nhau, v\u00e0 vi\u1ec7c bi\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t gi\u00fap c\u00e1c ch\u1ee7 nh\u00e0, th\u1ee3 \u0111i\u1ec7n v\u00e0 qu\u1ea3n l\u00fd c\u01a1 s\u1edf l\u1ef1a ch\u1ecdn b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p cho m\u1ed7i m\u1ea1ch. HUYU s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 15 amp cho c\u00e1c l\u1eafp \u0111\u1eb7t gia \u0111\u00ecnh, kinh doanh v\u00e0 c\u00f4ng nghi\u1ec7p, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u1ee5c v\u1ee5 c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c nhau.<\/p>\n<ul>\n<li><strong>B\u1ed9 Ng\u1eaft M\u1ea1ch Miniature (MCB):<\/strong> B\u1ed9 ng\u1eaft m\u1ea1ch nhi\u1ec7t t\u1eeb ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch. M\u1ed9t MCB 15 amp c\u00f3 th\u1ec3 mang t\u1ed1i \u0111a 15 amp v\u00f4 th\u1eddi h\u1ea1n v\u00e0 s\u1ebd ng\u1eaft khi qu\u00e1 t\u1ea3i k\u00e9o d\u00e0i tr\u00ean m\u1ee9c \u0111\u00f3, ho\u1eb7c ngay l\u1eadp t\u1ee9c khi c\u00f3 ng\u1eafn m\u1ea1ch d\u00f2ng cao. \u0110\u00e2y l\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 c\u01a1 b\u1ea3n. HUYU\u2019s <a href=\"https:\/\/huyuglobal.com\/vi\/product\/hum18-63-10ka-miniature-circuit-breaker\/\">c\u1ea7u dao mini HUM18\u201163<\/a> cung c\u1ea5p b\u1ea3o v\u1ec7 n\u00e0y \u1edf \u0111\u1ecbnh d\u1ea1ng DIN-rail, v\u1edbi kh\u1ea3 n\u0103ng ng\u1eaft 10 kA v\u00e0 c\u00e1c \u0111\u01b0\u1eddng cong ng\u1eaft B, C v\u00e0 D \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i t\u1ea3i kh\u00e1c nhau.<\/li>\n<li><strong>B\u1ed9 Ng\u1eaft M\u1ea1ch D\u00f2ng R\u00f2 (RCCB):<\/strong> B\u1ea3o v\u1ec7 ch\u1ed1ng r\u00f2 r\u1ec9 \u0111\u1ea5t \u2014 d\u00f2ng \u0111i\u1ec7n ch\u1ea3y xu\u1ed1ng \u0111\u1ea5t qua m\u1ed9t ng\u01b0\u1eddi ho\u1eb7c n\u01b0\u1edbc \u2014 nh\u01b0ng kh\u00f4ng b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i. M\u1ed9t RCCB tr\u00ean m\u1ea1ch 15 amp ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t MCB ho\u1eb7c c\u1ea7u ch\u00ec \u0111\u1ec3 cung c\u1ea5p b\u1ea3o v\u1ec7 ho\u00e0n ch\u1ec9nh. HUYU\u2019s <a href=\"https:\/\/huyuglobal.com\/vi\/product\/vrl11b-type-b-rccb\/\">VRL11B Lo\u1ea1i B RCCB<\/a> cung c\u1ea5p b\u1ea3o v\u1ec7 d\u00f2ng r\u00f2 cho c\u00e1c m\u1ea1ch n\u01a1i c\u00f3 th\u1ec3 c\u00f3 r\u00f2 r\u1ec9 DC.<\/li>\n<li><strong>B\u1ed9 Ng\u1eaft M\u1ea1ch D\u00f2ng R\u00f2 v\u1edbi Qu\u00e1 T\u1ea3i (RCBO):<\/strong> K\u1ebft h\u1ee3p c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t MCB v\u00e0 m\u1ed9t RCCB trong m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t. M\u1ed9t RCBO 15 amp b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i, ng\u1eafn m\u1ea1ch v\u00e0 r\u00f2 r\u1ec9 \u0111\u1ea5t \u0111\u1ed3ng th\u1eddi, v\u00e0 n\u00f3 chi\u1ebfm c\u00f9ng m\u1ed9t kh\u00f4ng gian DIN-rail nh\u01b0 m\u1ed9t MCB ti\u00eau chu\u1ea9n. \u0110\u00e2y l\u00e0 b\u1ea3o v\u1ec7 ho\u00e0n ch\u1ec9nh nh\u1ea5t cho m\u1ed9t m\u1ea1ch cu\u1ed1i \u0111\u01a1n. HUYU\u2019s <a href=\"https:\/\/huyuglobal.com\/vi\/product\/hum18le-63-rcbo-breaker\/\">HUM18LE\u201163 RCBO<\/a> cung c\u1ea5p b\u1ea3o v\u1ec7 k\u1ebft h\u1ee3p n\u00e0y, v\u1edbi ng\u1eaft nhi\u1ec7t \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh theo d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u1ea1ch.<\/li>\n<li><strong>Thi\u1ebft B\u1ecb Ph\u00e1t Hi\u1ec7n L\u1ed7i \u0110i\u1ec7n (AFDD):<\/strong> Ph\u00e1t hi\u1ec7n ch\u1eef k\u00fd \u0111i\u1ec7n \u0111\u1ed9c \u0111\u00e1o c\u1ee7a m\u1ed9t l\u1ed7i \u0111i\u1ec7n \u2014 s\u1ef1 ph\u00f3ng \u0111i\u1ec7n x\u1ea3y ra khi m\u1ed9t d\u00e2y b\u1ecb h\u1ecfng, m\u1ed9t k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo, ho\u1eb7c m\u1ed9t d\u00e2y b\u1ecb k\u1eb9p \u2014 v\u00e0 ng\u1eaft tr\u01b0\u1edbc khi l\u1ed7i c\u00f3 th\u1ec3 g\u00e2y ra h\u1ecfa ho\u1ea1n. AFDD ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u trong c\u00e1c m\u1ea1ch d\u00e2n c\u01b0 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi MCB ho\u1eb7c RCBO. Ch\u00fang nh\u1ea1y c\u1ea3m \u0111\u1ee7 \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t l\u1ed7i n\u1ed1i ti\u1ebfp m\u00e0 m\u1ed9t b\u1ed9 ng\u1eaft ti\u00eau chu\u1ea9n s\u1ebd kh\u00f4ng bao gi\u1edd th\u1ea5y, v\u00ec d\u00f2ng \u0111i\u1ec7n l\u1ed7i th\u1ea5p h\u01a1n ng\u01b0\u1ee1ng ng\u1eaft c\u1ee7a b\u1ed9 ng\u1eaft.<\/li>\n<li><strong>Thi\u1ebft B\u1ecb B\u1ea3o V\u1ec7 S\u1ef1 C\u1ed1 \u0110i\u1ec7n (SPD):<\/strong> B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c s\u1ef1 c\u1ed1 \u0111i\u1ec7n \u00e1p t\u1eeb s\u00e9t, chuy\u1ec3n \u0111\u1ed5i ti\u1ec7n \u00edch, ho\u1eb7c t\u1eaft \u0111\u1ed9ng c\u01a1 l\u1edbn. M\u1ed9t SPD tr\u00ean m\u1ea1ch 15 amp s\u1ebd chuy\u1ec3n d\u00f2ng \u0111i\u1ec7n d\u01b0 th\u1eeba xu\u1ed1ng \u0111\u1ea5t tr\u01b0\u1edbc khi n\u00f3 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i. N\u00f3 kh\u00f4ng cung c\u1ea5p b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi m\u1ed9t b\u1ed9 ng\u1eaft. D\u00f2ng s\u1ea3n ph\u1ea9m SPD Type 2 c\u1ee7a HUYU cung c\u1ea5p b\u1ea3o v\u1ec7 n\u00e0y cho c\u00e1c b\u1ea3ng ph\u00e2n ph\u1ed1i.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2938\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/What-Can-You-Run-on-a-15-Amp-Circuit.webp\" alt=\"B\u1ea1n c\u00f3 th\u1ec3 v\u1eadn h\u00e0nh g\u00ec tr\u00ean m\u1ea1ch 15 Amp\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>B\u1ea1n c\u00f3 th\u1ec3 ch\u1ea1y g\u00ec tr\u00ean m\u1ed9t m\u1ea1ch 15 amp? T\u1ea3i th\u00f4ng th\u01b0\u1eddng v\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a ch\u00fang<\/h2>\n<p>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y li\u1ec7t k\u00ea c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng th\u00f4ng th\u01b0\u1eddng, c\u00f4ng su\u1ea5t \u0111i\u1ec3n h\u00ecnh c\u1ee7a ch\u00fang, v\u00e0 li\u1ec7u ch\u00fang c\u00f3 th\u1ec3 ch\u1ea1y an to\u00e0n tr\u00ean m\u1ea1ch 15 amp, 120 volt B\u1eafc M\u1ef9 \u2014 m\u1ed9t m\u00ecnh, ho\u1eb7c k\u1ebft h\u1ee3p. Gi\u1edbi h\u1ea1n li\u00ean t\u1ee5c 1,440 watt l\u00e0 th\u01b0\u1edbc \u0111o cho b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o c\u00f3 th\u1ec3 ch\u1ea1y trong th\u1eddi gian d\u00e0i.<\/p>\n<table style=\"width: 100%;\">\n<thead>\n<tr>\n<th style=\"width: 19.7462%;\">Thi\u1ebft b\u1ecb<\/th>\n<th style=\"width: 9.99207%;\">C\u00f4ng su\u1ea5t \u0111i\u1ec3n h\u00ecnh<\/th>\n<th style=\"width: 69.548%;\">An to\u00e0n tr\u00ean m\u1ea1ch 15A (T\u1ed1i \u0111a 1,800W \/ Li\u00ean t\u1ee5c 1,440W)?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"width: 19.7462%;\">B\u00f3ng \u0111\u00e8n LED (\u0111\u01a1n)<\/td>\n<td style=\"width: 9.99207%;\">5\u201315 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3, nhi\u1ec1u b\u00f3ng d\u1ec5 d\u00e0ng<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">S\u1ea1c laptop<\/td>\n<td style=\"width: 9.99207%;\">45\u2013100 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">Tivi (LED 55 inch)<\/td>\n<td style=\"width: 9.99207%;\">60\u2013150 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">L\u00f2 vi s\u00f3ng<\/td>\n<td style=\"width: 9.99207%;\">600\u20131,200 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3, nh\u01b0ng tr\u00e1nh chia s\u1ebb v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u0111i\u1ec7n cao kh\u00e1c<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">M\u00e1y n\u01b0\u1edbng b\u00e1nh m\u00ec<\/td>\n<td style=\"width: 9.99207%;\">800\u20131.500 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3, nh\u01b0ng g\u1ea7n gi\u1edbi h\u1ea1n li\u00ean t\u1ee5c<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">M\u00e1y s\u01b0\u1edfi di \u0111\u1ed9ng<\/td>\n<td style=\"width: 9.99207%;\">500 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3 ri\u00eang; kh\u00f4ng n\u00ean c\u00f3 thi\u1ebft b\u1ecb kh\u00e1c chia s\u1ebb m\u1ea1ch khi n\u00f3 ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">M\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed c\u1eeda s\u1ed5 (c\u1ee1 trung b\u00ecnh)<\/td>\n<td style=\"width: 9.99207%;\">900\u20131.500 W<\/td>\n<td style=\"width: 69.548%;\">C\u00f3, nh\u01b0ng n\u00f3 ti\u00eau th\u1ee5 ph\u1ea7n l\u1edbn c\u00f4ng su\u1ea5t c\u1ee7a m\u1ea1ch<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 19.7462%;\">M\u00e1y s\u1ea5y t\u00f3c<\/td>\n<td style=\"width: 9.99207%;\">200\u20131.875 W<\/td>\n<td style=\"width: 69.548%;\">\u1ede m\u1ee9c 1.875 W, n\u00f3 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c t\u1ed1i \u0111a l\u00fd thuy\u1ebft 1.800 W tr\u00ean m\u1ea1ch 120V v\u00e0 s\u1ebd l\u00e0m nh\u1ea3y c\u1ea7u dao 15A; c\u1ea7n m\u1ea1ch 20A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00f3 th\u1ec3 l\u1eafp \u1ed5 c\u1eafm 20 amp tr\u00ean m\u1ea1ch 15 amp kh\u00f4ng?<\/h2>\n<p>B\u1ed9 Quy chu\u1ea9n \u0110i\u1ec7n Qu\u1ed1c gia (NEC) cho ph\u00e9p m\u1ed9t \u1ed5 c\u1eafm 15 amp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ch 15 amp ho\u1eb7c \u1ed5 c\u1eafm 15 ho\u1eb7c 20 amp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ch 20 amp. \u1ed4 c\u1eafm 20 amp, c\u00f3 khe T cho ph\u00edch c\u1eafm trung t\u00ednh, ch\u1ec9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u00ean m\u1ea1ch 15 amp n\u1ebfu s\u1eed d\u1ee5ng c\u1ea7u dao 15 amp v\u00e0 d\u00e2y d\u1eabn c\u00f3 \u0111\u1ecbnh m\u1ee9c 15 amp. Lo\u1ea1i l\u1eafp \u0111\u1eb7t n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb v\u00ec c\u00f3 th\u1ec3 khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng c\u1eafm thi\u1ebft b\u1ecb 20 amp v\u00e0 l\u00e0m nh\u1ea3y m\u1ea1ch. C\u00e1ch l\u1eafp \u0111\u1eb7t t\u1ed1t nh\u1ea5t l\u00e0 \u1ed5 c\u1eafm c\u00f3 \u0111\u1ecbnh m\u1ee9c 15 amp, m\u1ea1ch 15 amp v\u00e0 d\u00e2y d\u1eabn \u0111\u1ed3ng 14 AWG.<span style=\"color: #333333; font-size: 16px; font-weight: 400;\"> \u0110\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 ch\u1ecdn c\u1ea7u dao ph\u00f9 h\u1ee3p cho m\u1ea1ch m\u1edbi ho\u1eb7c n\u00e2ng c\u1ea5p, h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <\/span><a style=\"font-size: 16px; font-weight: 400;\" href=\"https:\/\/huyuglobal.com\/vi\/blog\/what-size-circuit-breaker-do-i-need\/\">k\u00edch th\u01b0\u1edbc c\u1ea7u dao b\u1ea1n c\u1ea7n<\/a><span style=\"color: #333333; font-size: 16px; font-weight: 400;\"> h\u01b0\u1edbng d\u1eabn quy tr\u00ecnh \u0111\u1ecbnh c\u1ee1 d\u1ef1a tr\u00ean NEC.<\/span><\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>C\u00f3 th\u1ec3 ch\u1ea1y 1.500 watt tr\u00ean m\u1ea1ch 15 amp kh\u00f4ng?<\/h3>\n<p>Th\u1ef1c t\u1ebf, t\u1ea3i 1.500 watt k\u00e9o kho\u1ea3ng 12,5 amp t\u1eeb m\u1ea1ch 120 volt, n\u1eb1m trong gi\u1edbi h\u1ea1n c\u1ee7a c\u1ea7u dao 15 amp. Tuy nhi\u00ean, n\u1ebfu thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c ba gi\u1edd tr\u1edf l\u00ean, n\u00f3 vi ph\u1ea1m quy t\u1eafc t\u1ea3i li\u00ean t\u1ee5c 80% l\u00e0 1.440 watt v\u00e0 c\u00f3 th\u1ec3 l\u00e0m nh\u1ea3y c\u1ea7u dao. An to\u00e0n khi s\u1eed d\u1ee5ng 1.500 watt trong th\u1eddi gian ng\u1eafn, nh\u01b0 v\u1edbi m\u00e1y n\u01b0\u1edbng b\u00e1nh m\u00ec ho\u1eb7c \u1ea5m \u0111un n\u01b0\u1edbc.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 ch\u1ea1y bao nhi\u00eau watt tr\u00ean c\u1ea7u dao 15 amp?<\/h3>\n<p>C\u1ea7u dao 15 amp trong m\u1ea1ch 120 volt c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ea3i t\u1ed1i \u0111a 1.800 watt \u0111o gi\u00e1n \u0111o\u1ea1n v\u00e0 t\u1ea3i t\u1ed1i \u0111a 1.440 watt cho ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c. C\u1ea7u dao 15 amp t\u01b0\u01a1ng t\u1ef1 trong m\u1ea1ch 230 volt c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ea3i t\u1ed1i \u0111a 3.450 watt gi\u00e1n \u0111o\u1ea1n v\u00e0 2.760 watt trong tr\u01b0\u1eddng h\u1ee3p t\u1ea3i li\u00ean t\u1ee5c. 80% c\u1ee7a t\u1ea3i li\u00ean t\u1ee5c s\u1ebd l\u00e0 gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf trong s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb 1.800 watt tr\u00ean m\u1ea1ch 15 amp kh\u00f4ng?<\/h3>\n<p>Trong m\u1ea1ch 120 volt, t\u1ea3i 1.800 watt t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 15 amp, l\u00e0 gi\u1edbi h\u1ea1n c\u1ee7a m\u1ea1ch. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o c\u1eafm th\u00eam v\u00e0o m\u1ea1ch sau \u0111\u00f3, nh\u01b0 \u0111\u00e8n ho\u1eb7c b\u1ed9 s\u1ea1c \u0111i\u1ec7n tho\u1ea1i, s\u1ebd v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n c\u1ee7a m\u1ea1ch v\u00e0 l\u00e0m nh\u1ea3y c\u1ea7u dao. Trong h\u1ea7u h\u1ebft tr\u01b0\u1eddng h\u1ee3p, c\u1ea7u dao s\u1ebd ho\u1ea1t \u0111\u1ed9ng n\u1ebfu thi\u1ebft b\u1ecb ch\u1ec9 d\u00f9ng trong th\u1eddi gian ng\u1eafn. Tuy nhi\u00ean, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 quy chu\u1ea9n, n\u00ean s\u1eed d\u1ee5ng m\u1ea1ch 20 amp.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 l\u1eafp \u1ed5 c\u1eafm 20 amp tr\u00ean m\u1ea1ch 15 amp kh\u00f4ng?<\/h3>\n<p>C\u00f3 th\u1ec3 l\u1eafp \u1ed5 c\u1eafm 15 amp ho\u1eb7c 20 amp tr\u00ean m\u1ea1ch 20 amp theo quy \u0111\u1ecbnh NEC, nh\u01b0ng kh\u00f4ng n\u00ean l\u1eafp \u1ed5 c\u1eafm ki\u1ec3u 20 amp tr\u00ean m\u1ea1ch 15 amp v\u00ec n\u00f3 g\u1ee3i \u00fd \u0111\u1ecbnh m\u1ee9c cao h\u01a1n \u0111\u1ecbnh m\u1ee9c th\u1ef1c t\u1ebf c\u1ee7a m\u1ea1ch. C\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ecbnh m\u1ee9c \u1ed5 c\u1eafm ph\u00f9 h\u1ee3p v\u1edbi c\u1ea7u dao, t\u1ee9c l\u00e0 d\u00f9ng \u1ed5 c\u1eafm 15 amp tr\u00ean c\u1ea7u dao 15 amp.<\/p>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.nfpa.org\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 (Quy chu\u1ea9n \u0110i\u1ec7n Qu\u1ed1c gia) \u2014 \u0110i\u1ec1u 210.20<\/a>. Y\u00eau c\u1ea7u v\u1ec1 t\u1ea3i li\u00ean t\u1ee5c v\u00e0 kh\u00f4ng li\u00ean t\u1ee5c tr\u00ean c\u00e1c m\u1ea1ch nh\u00e1nh. Hi\u1ec7p h\u1ed9i B\u1ea3o v\u1ec7 Ch\u1ed1ng ch\u00e1y Qu\u1ed1c gia.<\/li>\n<li><a href=\"https:\/\/www.esfi.org\" rel=\"nofollow noopener\" target=\"_blank\">T\u1ed5 ch\u1ee9c An to\u00e0n \u0110i\u1ec7n Qu\u1ed1c t\u1ebf (ESFI) \u2014 An to\u00e0n \u0110i\u1ec7n trong Nh\u00e0<\/a>. H\u01b0\u1edbng d\u1eabn v\u1ec1 t\u1ea3i m\u1ea1ch, k\u00edch th\u01b0\u1edbc b\u1ed9 ng\u1eaft m\u1ea1ch, v\u00e0 quy t\u1eafc t\u1ea3i li\u00ean t\u1ee5c 80%.<\/li>\n<li><a href=\"https:\/\/www.energy.gov\/energysaver\/estimating-appliance-and-home-electronic-energy-use\" rel=\"nofollow noopener\" target=\"_blank\">B\u1ed9 N\u0103ng l\u01b0\u1ee3ng Hoa K\u1ef3 \u2014 M\u00e1y t\u00ednh S\u1eed d\u1ee5ng N\u0103ng l\u01b0\u1ee3ng Thi\u1ebft b\u1ecb<\/a>. D\u1eef li\u1ec7u tham kh\u1ea3o v\u1ec1 c\u00f4ng su\u1ea5t ti\u00eau chu\u1ea9n v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li><a href=\"https:\/\/www.leviton.com\" rel=\"nofollow noopener\" target=\"_blank\">Leviton \u2014 \u1ed4 c\u1eafm d\u00e2n d\u1ee5ng v\u00e0 \u0110\u00e1nh gi\u00e1 M\u1ea1ch<\/a>. H\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 vi\u1ec7c ph\u00f9 h\u1ee3p d\u00f2ng \u0111i\u1ec7n \u1ed5 c\u1eafm v\u1edbi d\u00f2ng \u0111i\u1ec7n m\u1ea1ch v\u00e0 ti\u1ebft di\u1ec7n d\u00e2y d\u1eabn.<\/li>\n<\/ul>\n<p>C\u00e2u h\u1ecfi <strong>bao nhi\u00eau watt tr\u00ean m\u1ea1ch 15 amp<\/strong> c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi s\u1ed1 h\u1ecdc \u0111\u01a1n gi\u1ea3n \u2014 1.800 watt tr\u00ean ngu\u1ed3n 120 volt, 3.450 watt tr\u00ean ngu\u1ed3n 230 volt \u2014 nh\u01b0ng con s\u1ed1 quan tr\u1ecdng trong th\u1ef1c t\u1ebf l\u00e0 gi\u1edbi h\u1ea1n t\u1ea3i li\u00ean t\u1ee5c 80% v\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp trong b\u1ea3ng \u0111i\u1ec7n. M\u1ed9t MCB, RCBO, ho\u1eb7c AFDD tr\u00ean m\u1ea1ch \u0111\u00f3 cung c\u1ea5p c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 v\u01b0\u1ee3t qu\u00e1 \u0111\u1ecbnh m\u1ee9c amp, v\u00e0 nhi\u1ec7m v\u1ee5 c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch l\u00e0 m\u1edf m\u1ea1ch tr\u01b0\u1edbc khi d\u00e2y \u0111i\u1ec7n trong t\u01b0\u1eddng tr\u1edf th\u00e0nh c\u1ea7u ch\u00ec. HUYU cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 15 amp \u2014 MCB, RCCB, RCBO, v\u00e0 b\u1ed9 ng\u1eaft DC \u2014 cho c\u00e1c c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng, th\u01b0\u01a1ng m\u1ea1i v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, v\u00ec m\u1ea1ch \u0111i\u1ec7n c\u1ea5p ngu\u1ed3n cho nh\u00e0 ho\u1eb7c nh\u00e0 m\u00e1y ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi thi\u1ebft b\u1ecb m\u1edf m\u1ea1ch ch\u00ednh x\u00e1c khi c\u1ea7n v\u00e0 gi\u1eef m\u1ea1ch ch\u00ednh x\u00e1c khi ph\u1ea3i.<\/p>","protected":false},"excerpt":{"rendered":"<p>Last winter, a Chicago resident plugged in a 1,500-watt space heater in the living room and switched on the television and a lamp. After 20 minutes, the room was plunged into darkness. The circuit breaker rated at 15 amps tripped, and this was not due to any defect but because it performed as intended. The [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2935,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2934","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/2934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/comments?post=2934"}],"version-history":[{"count":1,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/2934\/revisions"}],"predecessor-version":[{"id":2939,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/2934\/revisions\/2939"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/media\/2935"}],"wp:attachment":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/media?parent=2934"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/categories?post=2934"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/tags?post=2934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}