FUSE的標(biāo)示為 T3.15AL250V
不明白中間怎么有個(gè)L是什么意思啊?
請(qǐng)知道的大俠告知,謝謝~~
FUSE的標(biāo)示????
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@sally_smile
問了下工程師為什么要這么寫?他說是叫低熔斷,是這樣的嗎?還說什么是通過了UL就增加了個(gè)L,暈~~~
規(guī)格上有 H, L :
H 高熔斷. 可承受瞬間短路電流 3500A, Fuse 不致造成危險(xiǎn). 其外殼多為陶瓷. 且內(nèi)置石英砂.
L 低熔斷. 即一般玻璃管 Fuse. 當(dāng)高短路電流時(shí), 會(huì)破裂.
以往在北歐 (Nordic) 有特殊要求需使用 "高熔斷" Fuse.
這兩者要求是不同的. 如果有同伴是作 Fuse. 那查一下 IEC 127 應(yīng)該有更明確說明.
H 高熔斷. 可承受瞬間短路電流 3500A, Fuse 不致造成危險(xiǎn). 其外殼多為陶瓷. 且內(nèi)置石英砂.
L 低熔斷. 即一般玻璃管 Fuse. 當(dāng)高短路電流時(shí), 會(huì)破裂.
以往在北歐 (Nordic) 有特殊要求需使用 "高熔斷" Fuse.
這兩者要求是不同的. 如果有同伴是作 Fuse. 那查一下 IEC 127 應(yīng)該有更明確說明.
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L- 表示低分?jǐn)嗄芰?請(qǐng)參考如下說明(摘自IEC60065)
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on
each fuse-holder or close to the fuse-link, in the given order:
? a symbol denoting the relative prearcing time/current characteristic;
examples are:
F, denoting quick acting;
T, denoting time lag;
? the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
currents of 1 A or more;
? a symbol denoting the breaking capacity of the assigned fuse-link;
examples are:
L, denoting low breaking capacity;
E, denoting enhanced breaking capacity;
H, denoting high breaking capacity.
Examples of marking: T 315 L or T 315 mA L
F 1,25 H or F 1,25 A H
? the voltage rating of the fuse, where a fuse with a lower rated voltage could be fitted in error.
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on
each fuse-holder or close to the fuse-link, in the given order:
? a symbol denoting the relative prearcing time/current characteristic;
examples are:
F, denoting quick acting;
T, denoting time lag;
? the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
currents of 1 A or more;
? a symbol denoting the breaking capacity of the assigned fuse-link;
examples are:
L, denoting low breaking capacity;
E, denoting enhanced breaking capacity;
H, denoting high breaking capacity.
Examples of marking: T 315 L or T 315 mA L
F 1,25 H or F 1,25 A H
? the voltage rating of the fuse, where a fuse with a lower rated voltage could be fitted in error.
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@ls_2
L-表示低分?jǐn)嗄芰?請(qǐng)參考如下說明(摘自IEC60065)14.5.2.2Forfuse-linksaccordingtoIEC60127,thefollowingmarkingshallbelocatedoneachfuse-holderorclosetothefuse-link,inthegivenorder:?asymboldenotingtherelativeprearcingtime/currentcharacteristic;examplesare:F,denotingquickacting;T,denotingtimelag;?theratedcurrentinmilliamperesforratedcurrentsbelow1A,andinamperesforratedcurrentsof1Aormore;?asymboldenotingthebreakingcapacityoftheassignedfuse-link;examplesare:L,denotinglowbreakingcapacity;E,denotingenhancedbreakingcapacity;H,denotinghighbreakingcapacity.Examplesofmarking:T315LorT315mALF1,25HorF1,25AH?thevoltageratingofthefuse,whereafusewithalowerratedvoltagecouldbefittedinerror.
對(duì), 65的標(biāo)準(zhǔn)寫的很細(xì),
還有個(gè)前提是會(huì)影響安全并直接接在供電線路上
Fuse-links, DIRECTLY CONNECTED TO THE MAINS, used in order to prevent the apparatus from becoming unsafe
還有個(gè)前提是會(huì)影響安全并直接接在供電線路上
Fuse-links, DIRECTLY CONNECTED TO THE MAINS, used in order to prevent the apparatus from becoming unsafe
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