环氧树脂绝缘板

一、环氧树脂绝缘板产品介绍
   环氧树脂绝缘板产品是用浸渍纸、棉布、玻璃布、浸渍酚醛、环氧树脂，经烘焙热压而成的硬质板状绝缘材料。环氧酚醛树脂绝缘板具有较高的机械强度、介电性能、耐油性和耐腐蚀性，环氧酚醛树脂绝缘板适用于要求较高的电工机械、电器设备中作绝缘结构件，并可在潮湿环境和变压器中使用，耐热等级为B级。

二、环氧树脂绝缘板产品技术要求
1、环氧树脂绝缘板外观、表面应平整光滑，不允许有杂质和其他明显的缺陷，允许有轻微的擦伤，边缘应切割整齐，端面不得有分层和裂纹。
2、环氧树脂绝缘板尺寸：面积不得小于380×480平方毫米，如需特殊规格，可同供需双方协议生产。其它数据详见机电部标准。
3、环氧树脂绝缘板产品可根用户要求，加工成各种规格板、管、垫、法兰、瓦、等异形件。

三、黄色环氧板技术参数

1、外观 表面应平滑，无气泡、皱纹和裂纹。
2、标称厚度及允许偏差见表1。
表1 　mm 

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background:#cccccc;">标称厚度 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background:#cccccc;">偏差 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background:#cccccc;">标准厚度 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background:#cccccc;">偏差 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.4 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.10 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">8.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.72 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.5 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.12 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">10.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.82 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.6 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.13 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">12.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.94 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.8 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.16 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">14.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.02 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.18 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">16.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.12 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.2 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.20 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">20.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.30 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.6 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.24 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">25.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.50 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">2.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.28 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">30.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.70 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">2.5 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.33 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">35.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.95 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">3.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.37 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">40.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.10 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">4.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.45 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">45.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.30 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">5.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.52 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">50.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.45 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">6.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.60 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">60.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.50 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">  <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">  <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">80.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.80 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="543" colspan="4" ****="border-color:#ece9d8;padding:0cm;width:407.3pt;background-color:****ansparent;">注： 1 其他允许偏差可由供需双方协商。 2 对于标称厚度不在所列的优选厚度之一者，其允许偏差应采用下一个较大的优选厚度的偏差。
3、平直度见表2。表2 层压板表面距直尺的大允许偏差mm
<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" rowspan="2" width="166" ****="border-color:#ece9d8;padding:0cm;width:124.5pt;background:#cccccc;">厚度 （d） <**** valign="top" width="370" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:277.5pt;background:#cccccc;">直尺长度 <****><**** valign="top" width="189" ****="border-color:#ece9d8;padding:0cm;width:5cm;background:#cccccc;">1000 <**** valign="top" width="180" ****="border-color:#ece9d8;padding:0cm;width:135pt;background:#cccccc;">500 <****><**** valign="top" width="166" ****="border-color:#ece9d8;padding:0cm;width:124.5pt;background-color:****ansparent;">1.6≤d≤3 3<> 6<> 8< d <**** valign="top" width="189" ****="border-color:#ece9d8;padding:0cm;width:5cm;background-color:****ansparent;">见注 10 8 6 <**** valign="top" width="180" ****="border-color:#ece9d8;padding:0cm;width:135pt;background-color:****ansparent;">见注 2.5 2.0 1.5 <****><**** valign="top" width="535" colspan="3" ****="border-color:#ece9d8;padding:0cm;width:401.25pt;background-color:****ansparent;">>注：对标称厚度在1.6 mm≤d≤3 mm的允许偏差正在考虑之中

4、性能要求见表4。表4性能要求

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background:#cccccc;">序 号 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background:#cccccc;">指 标 名 称 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background:#cccccc;">单 位 <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background:#cccccc;">指 标 值 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background:#cccccc;">说明 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">1 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">垂直层向弯曲强度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MPa <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥340 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">2 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向冲击强度 （简支梁法） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">KJ/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥33 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">3 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向冲击强度 （悬臂梁法） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">kJ/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥34 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">4 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">垂直层向电气强度 （90℃±2℃油中） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MV/m <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">见表5 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">5 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向击穿电压 （90℃±2℃油中） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">kV <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥35 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">6a <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介电常数 （48Hz-62Hz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤5.5 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">6b <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介电常数 （1MHz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤5.5 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">7 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">马丁温度纵向 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥200 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">8 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">热稳定性 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">200 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">9 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">耐油性变压器油中4h <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">130 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">10 <**** valign="top" width="200" ****="border-bottom-color:#ece9d8;padding:0cm;width:149.7pt;border-right-color:#ece9d8;border-left-color:#ece9d8;background-color:****ansparent;">拉伸强度纵向 横向 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MPa <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥314 ≥216 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">11 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">粘合强度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">N <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥5600 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">12 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">表面电阻率常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">13 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">体积电阻率常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ·m <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">14 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向绝缘电阻常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">15a <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介质损耗因数 （48Hz-62Hz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤0.04 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">15b <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介质损耗因数 （1MHz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤0.04 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">16 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">浸水后绝缘电阻 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">Ω <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥5.0× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">17 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">密度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">g/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">（1.7-1.9） <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">18 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">吸水性 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">mg <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">见表6 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">-

表5垂直层向电气强度

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">平均厚度 mm <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">电气强度 MV/m <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">厚度 mm <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">电气强度 MV/m <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥16.9 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">1.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥12.7 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.5 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥16.1 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">1.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥12.2 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥15.6 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.8 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.7 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥15.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.2 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.4 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.8 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.1 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.9 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.5 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.5 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.9 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.8 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.2 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥13.7 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.5 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥13.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">3.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.2

注：1 对90℃±2℃油中垂直层向电气强度，可任选20s逐级升压和1min耐压试验要求中的一种。对符合二者之一要求的材料，应视其90℃±2℃油中垂直层向电气强度是符合本标准要求的。 2 如果测得的试样厚度算术平均值是介于表中两厚度之间，则其指标值应从内插法求取。如果测得的厚度算术平均值小于0.4mm，则其电气强度指标值取≥16.9MV/m。如果标称厚度为3mm，并且测得的厚度算术平均值大于3mm时，则其电气强度的指标值取≥10.2MV/m表6吸水性

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="100%" ****="margin:auto auto auto 1.15pt;width:656px;"><****><****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background:#cccccc;">试样厚度平均值 mm <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background:#cccccc;">吸水性 mg <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background:#cccccc;">试样厚度平均值 mm <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background:#cccccc;">吸水性 mg <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.4 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤25 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤27 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">8 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤31 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.8 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">10 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤34 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.0 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">12 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤38 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.2 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">14 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤41 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤19 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">16 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤46 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">2.0 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤20 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">20 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤52 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">2.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤21 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">25 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤61 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">3 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤22 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">单面加工至22.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤73 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">4 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤23 <**** valign="top" width="99" ****="border-bottom-color:#ece9d8;padding:0cm;border-top-color:#ece9d8;width:73.9pt;border-right-color:#ece9d8;background-color:****ansparent;"> 

注：1如果测得的试样厚度算术平均值是介于表中两厚度之间，则其指标值应从内插法求得。2如果测得的厚度算术平均值小于0.4mm，则其指标值取≤17mg。如果标称厚度为25mm并测得的厚度算术平均值大于25mm时，则其指标值取≤61mg。标称厚度大于25mm的板材，则应从单面加工至22.5mm且加工面应是比较光滑的。
  3240环氧板是由电工用无碱玻璃纤维布浸以环氧酚醛树脂，经烘焙、热压而成。
  3240环氧板具有较高的机械和介电性能，较好的耐热性和耐潮性，并有良好的机械加工性，耐热等级为B级。
  3240环氧板适用于电机、电器设备中作为绝缘结构零部件，并可在潮温环境和变压器油中使用。
  324环氧板以较高的机械性能和电气性能，广泛应用在发电机、马达、电子器具上作为绝缘材料和构件。在变压器油压环境和湿度环境中也非常适用。

7、环氧树脂和所用的固化剂的反应是通过直接加成反应或树脂分子中环氧基的开环聚合反应来进行的，没有水或其它挥发性副产物放出。它们和不饱和聚酯树脂、酚醛树脂相比，在固化过程中显示出很低的收缩性（小于2%）。

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