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    <td height="30" align="center"><font style="font-size:16px"><b>东莞近30年的生产厂家：保险丝选型重要参数</b></font></td>
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    <td height="35" align="center" style="border-bottom: 1px solid #CCCCCC"><font color="#999999">时间：2026-09-11　点击：4</font></td>
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    <td class="txt"><h1 style="margin-top:0;margin-right:0;margin-bottom:14px;margin-left:0;text-indent:0;padding:0 0 0 0 ;background:rgb(255,255,255)"><strong style="font-size: 18px; text-align: justify;"><span style="font-family: Arial; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px;">100<span style="font-size: 18px; font-family: 微软雅黑;">多年前由爱迪生发明</span></span></strong><strong style="font-size: 18px; text-align: justify;"><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-family: 微软雅黑;">的保险丝</span></strong><strong style="font-size: 18px; text-align: justify;"><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-family: 微软雅黑;">用于保护当时昂贵的白炽灯！！！</span></strong></h1><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph;background:rgb(255,255,255)"><span style="font-size: 18px;"><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;">保险丝的本质是一种基于电流热效应的过电流保护元件，其核心功能是通过自身熔断切断异常电流，从而保护电路安全。</span></strong><strong><span style="font-family: 微软雅黑; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px;">东莞市安都电子有限公司</span></strong><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;">作为最早一批国产崛起保险丝厂家，至今发展</span></strong><strong><span style="font-family: 微软雅黑; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px;"><span style="font-size: 18px; font-family: 微软雅黑;">近</span><span style="font-size: 18px; font-family: Arial;">30</span></span></strong><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;">年，研发设计团队均来至国际企业，深耕</span></strong><strong><span style="font-family: 微软雅黑; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px;">电子保护元器件，在行业内颇有口碑</span></strong><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;">。</span></strong><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph;background:rgb(255,255,255)"><span style="font-size: 18px;"><strong><span style="font-family: 微软雅黑; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px;"><span style="font-size: 18px; font-family: 微软雅黑;">主要生产的产品有：汽车插片保险丝、螺栓保险丝、平板式保险丝、管状电流保险丝、方形保险丝</span><span style="font-size: 18px; font-family: Arial;">/</span><span style="font-size: 18px; font-family: 微软雅黑;">背包保险丝、温度保险丝、电流保险座、汽车保险丝座、汽车保险盒等产品</span></span></strong><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph;background:rgb(255,255,255)">产品应用于产品广泛应用于家用电器、电吹风机、汽车、新能源汽车、房车、叉车、发电站、太阳能设备、光伏发电设备、家用储能、风力发电设备、车载设备、充电桩、新能源电池、逆变器、汽车线束、电子设备以及其他电子系统等领域。</p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph;background:rgb(255,255,255)"><span style="font-family: 微软雅黑; color: rgb(51, 51, 51); letter-spacing: 0px; font-size: 18px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph;background:rgb(255,255,255)"><span style="font-size: 18px;"><strong><span style="color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;">接下来重点分享下保险丝的选型重要参考参数：</span></strong><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px;">1<span style="font-size: 18px; font-family: 微软雅黑;">、额定电流</span><span style="font-size: 18px; font-family: Arial;">In---</span><span style="font-size: 18px; font-family: 微软雅黑;">最核心参数</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 18px; font-family: 微软雅黑;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">保险丝的额定电流是指它的</span><span style="color: rgb(87, 107, 149); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">公称额定电流</span><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">,&nbsp;通常就是</span><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">电路能</span>&nbsp;</span></strong></span><span style="font-size: 18px;"><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">&nbsp;够工作的最大电流值。</span></strong><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"></span></strong></span><img width="553" height="68" src="https://www.autoido.cn/editor/themes/default/images/spacer.gif"/></p><p><span style="font-size: 18px;"><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">2<span style="font-size: 18px; font-family: 微软雅黑;">、额定电压</span><span style="font-size: 18px; font-family: Arial;">Un---</span><span style="font-size: 18px; font-family: 微软雅黑;">断开后的耐压力</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">保险丝的额定电压是指它的公称额定电压</span>,&nbsp;通常就是</span><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">保险丝</span></strong><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">断开后能够承受的最大电压值。</span></strong><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p><span style="font-size: 18px;"><span style="letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">通电时保险丝两端电压极小（仅压降），</span><span style="font-family: 微软雅黑; letter-spacing: 1px; font-size: 17px; background: rgb(255, 255, 255);"><br/></span><span style="letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">断开后两端承受全部电路电压，因此&nbsp;</span><span style="color: rgb(24, 95, 165); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">Un ≥ 电路电压</span><span style="letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">。</span></span><img width="553" height="83" src="https://www.autoido.cn/editor/themes/default/images/spacer.gif"/><span style="font-size: 18px;"><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 13px; background: rgb(255, 255, 255);"><br/></span><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">3<span style="font-size: 18px; font-family: 微软雅黑;">、环境温度</span><span style="font-size: 18px; font-family: Arial;">---</span><span style="font-size: 18px; font-family: 微软雅黑;">影响载流能力</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">环境温度或已知的工作温度</span>,&nbsp;对保险丝的动作是有影响的</span></strong><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">*&nbsp;环境温度越高,&nbsp;保险丝的工作时就越热,&nbsp;其寿命也就越短</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">*&nbsp;不管是&nbsp;UL&nbsp;规格还是&nbsp;IEC规格,&nbsp;保险丝的各项要求都是指在</span><span style="background-color: rgb(255, 255, 255); font-family: 华文仿宋; font-size: 18px; letter-spacing: 1px;">室温条件下的</span><span style="background-color: rgb(255, 255, 255); font-family: 华文仿宋; font-size: 18px; letter-spacing: 1px;">&nbsp;25°C，如环境或工作温度较高，则要考虑保险</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">丝的温度折减率。</span></p><p><img width="553" height="144" src="https://www.autoido.cn/editor/themes/default/images/spacer.gif"/><span style="font-size: 18px;"><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">&nbsp;</span></strong></span></p><p><span style="font-size: 18px;"><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">4<span style="font-size: 18px; font-family: 微软雅黑;">、</span></span></strong><strong><span style="color: rgb(87, 107, 149); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">熔断特性</span></strong><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">&nbsp;— <span style="font-size: 18px; font-family: 微软雅黑;">时间</span><span style="font-size: 18px; font-family: Arial;">-</span><span style="font-size: 18px; font-family: 微软雅黑;">电流曲线 </span><span style="font-size: 18px; font-family: Arial;">(I-T)</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: Arial;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">当流经保险丝的电流超过额定电流时,&nbsp;熔体温度逐渐上升，</span></p><p><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">&nbsp; &nbsp;以至最后保险丝被烧断,我们把这都归属为一种过载状态。</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">时间</span>/电流特性是保险丝最主要的电性能指标</span></strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">，</span><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">它表明了保险</span></strong><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">丝在不同过载电流负载下熔断的时间范围。</span></strong><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">保险丝要求有一定的过载能力</span></strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">：</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">&nbsp; UL规范保险丝的最大不</span><span style="color: rgb(87, 107, 149); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">熔断电流</span><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">是</span>110%In；</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">保险丝也要求在超过限量的过载电流时能及时地烧断</span></strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">：</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:77px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">UL规范保险丝的在135%In\160%In\200%In\350%In\600%In也有一定的熔断时间要求范围</span></p><p><span style="font-size: 18px;"><strong><span style="font-family: Arial; color: rgb(25, 35, 56); letter-spacing: 0px; font-size: 16px; background: rgb(255, 255, 255);"><br/></span></strong><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">5<span style="font-size: 18px; font-family: 华文仿宋;">、分断能力 </span><span style="font-size: 18px; font-family: Arial;">Ir — </span><span style="font-size: 18px; font-family: 华文仿宋;">最关键的安全指标</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">分断能力是保险丝最主要的安全指标。它表明了在规定的电压下</span>,&nbsp;保险丝能安全地切断的最大电流。</span></strong><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">分断能力也称为最大分</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">断能力或短路分断能力。&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:84px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;当超过</span><span style="color: rgb(87, 107, 149); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;">额定分断电流</span><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">值时</span>,&nbsp;保险丝有可能出现破碎，爆炸，喷</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 华文仿宋; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">溅，引起周围人身或其他元器件的燃烧和破坏等不安全现象。</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><img width="554" height="554" src="https://www.autoido.cn/editor/themes/default/images/spacer.gif"/><span style="font-family: 宋体; font-size: 18px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">6<span style="font-size: 18px; font-family: 华文仿宋;">、熔化热能值</span><span style="font-size: 18px; font-family: Arial;">&nbsp;</span></span></strong><strong><span style="font-family: Arial; color: rgb(87, 107, 149); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">I²t</span></strong><strong><span style="font-family: Arial; color: rgb(64, 118, 0); letter-spacing: 0px; font-size: 20px; background: rgb(255, 255, 255);">&nbsp;—&nbsp;<span style="font-size: 18px; font-family: 华文仿宋;">耐浪涌的关键</span></span></strong><strong><span style="color: rgb(64, 118, 0); letter-spacing: 0px; background: rgb(255, 255, 255); font-size: 18px; font-family: 华文仿宋;"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 微软雅黑; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">用于判断保险丝能否承受启动浪涌电流</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 微软雅黑; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">物理含义</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 微软雅黑; letter-spacing: 1px; font-size: 17px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 微软雅黑;">熔断保险丝所需的最小能量，单位</span> <span style="font-size: 18px; font-family: 微软雅黑;">A²s（安培平方秒）</span><br/></span><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">I²t = I² × t&nbsp; → &nbsp;电流越大，允许时间越短</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: 微软雅黑; letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px;">选型原则</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">保险丝&nbsp;</span><span style="color: rgb(24, 95, 165); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">If²t</span><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">（耐受值）必须&nbsp;</span><span style="color: rgb(59, 109, 17); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">&gt;</span><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">&nbsp;电路浪涌&nbsp;</span><span style="color: rgb(186, 117, 23); letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">Ir²t</span><span style="font-family: 微软雅黑; letter-spacing: 1px; font-size: 17px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 微软雅黑;">（释放值）</span><br/><span style="font-size: 18px; font-family: 微软雅黑;">安全工作条件：</span></span><span style="font-family: 微软雅黑; letter-spacing: 1px; font-size: 12px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 微软雅黑;">选用的</span> <span style="font-size: 18px; font-family: 微软雅黑;">I²t ≤ 20%</span></span><span style="letter-spacing: 1px; background: rgb(255, 255, 255); font-size: 18px; font-family: 微软雅黑;">&nbsp;保险丝额定 I²t</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:48px;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;</span><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">I</span></strong><strong><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup></strong><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t值是直接测定切断保险丝所需的能量值</span></strong><strong><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"></span></strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">*&nbsp;总量&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t (清除&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t) =&nbsp;熔化&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t +&nbsp;飞弧&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">&nbsp;清除&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t&nbsp;是指保险丝彻底断开过程中的全部热能量</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-size: 18px;"><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: 华文仿宋;">熔化</span>&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t (相当于&nbsp;IEC标准中的预飞弧&nbsp;I</span><sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; vertical-align: super; background: rgb(255, 255, 255);">2</span></sup><span style="font-family: 华文仿宋; letter-spacing: 1px; font-size: 19px; background: rgb(255, 255, 255);">t)&nbsp;是指从熔体熔</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:24px;margin-left:0;padding:0 0 0 0 ;text-align:justify;text-justify:inter-ideograph"><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p><span style="font-family: Calibri; font-size: 18px;">&nbsp;</span></p><p><br/></p></td>
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