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自承式室外（HYYC）电话线

<h3><img src="/Resource/News/2024/09/14/b1fa2698b7ce45ce98b3fef8a9a19778.png" data-filename="/" style="width: 91px;">&nbsp;&nbsp;自承式室外（HYYC）电话线</h3><h3><img src="/Resource/News/2024/09/14/a80f78deea654066bc6ffa1fd74e30af.jpg" data-filename="/" style="width: 630px;"></h3><h3><img src="/Resource/News/2024/09/14/3487df96a5f748f98e4cfd3f5cf87701.png" data-filename="/" style="width: 95px;"></h3><h3>引用标准： YD/T 840-1996<table bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%" border="1" style="color: rgb(68, 68, 68); font-family: arial, helvetica, sans-serif; font-size: 12px; font-weight: 400;"><tbody><tr><td valign="top" width="96">型号</td><td valign="top" width="156">导体（铜）</td><td valign="top" width="276">对数</td><td valign="top" width="132">额定温度</td></tr><tr><td valign="top" width="96">HYYC</td><td valign="top" width="156">0.5、0.6、0.7、0.8</td><td valign="top" width="276">1P、2P、3P 、4P、 5P</td><td valign="top" width="132">60℃</td></tr></tbody></table>电气物理特性<table bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%" border="1" style="color: rgb(68, 68, 68); font-family: arial, helvetica, sans-serif; font-size: 12px; font-weight: 400;"><tbody><tr><td width="324">线对直流电阻不平衡</td><td width="168">%</td><td width="168">≤2.5</td></tr><tr><td width="324">工作电容</td><td width="168">nF/km</td><td width="168">≤66</td></tr><tr><td width="324">介电强度 (直流1分钟, )</td><td width="168">DC (V)</td><td width="168">1000</td></tr><tr><td width="324">绝缘电阻</td><td width="168">M Ω·km</td><td width="168">≥5000</td></tr><tr><td width="324">导体的断裂伸长率&nbsp;</td><td width="168">%</td><td width="168">≥15</td></tr><tr><td width="324">护套抗张强度</td><td width="168">MPa</td><td width="168">≥13.5</td></tr><tr><td width="324">护套断裂伸长率</td><td width="168">%</td><td width="168">≥350</td></tr></tbody></table>传输特性<table bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%" border="1" style="color: rgb(68, 68, 68); font-family: arial, helvetica, sans-serif; font-size: 12px; font-weight: 400;"><tbody><tr><td width="109" nowrap="">频率</td><td width="96" nowrap="">回损</td><td width="99" nowrap="">&nbsp;衰减</td><td width="108" nowrap="">近端串音衰减</td><td width="117" nowrap="">等电平远端串音衰减</td><td width="132" nowrap="">特性阻抗</td></tr><tr><td width="109" nowrap="">MHZ</td><td width="96" nowrap="">≥dB</td><td width="99" nowrap="">≤dB</td><td width="108" nowrap="">≥dB</td><td width="117" nowrap="">≥dB</td><td width="132" nowrap="">Ω</td></tr><tr><td width="109" nowrap="">1.0</td><td width="96" nowrap="">12.0</td><td width="99" nowrap="">2.6</td><td width="108" nowrap="">41.3</td><td width="117" nowrap="">39.0</td><td width="132" nowrap="">100±15</td></tr><tr><td width="109" nowrap="">2.0</td><td width="96" nowrap="">12.0</td><td width="99" nowrap="">3.8</td><td width="108" nowrap="">36.8</td><td width="117" nowrap="">33.0</td><td width="132" nowrap="">100±15</td></tr><tr><td width="109" nowrap="">4.0</td><td width="96" nowrap="">12.0</td><td width="99" nowrap="">5.6</td><td width="108" nowrap="">32.3</td><td width="117" nowrap="">27.0</td><td width="132" nowrap="">100±15</td></tr><tr><td width="109" nowrap="">8.0</td><td width="96" nowrap="">12.0</td><td width="99" nowrap="">8.5</td><td width="108" nowrap="">27.8</td><td width="117" nowrap="">20.9</td><td width="132" nowrap="">100±15</td></tr><tr><td width="109" nowrap="">10.0</td><td width="96" nowrap="">12.0</td><td width="99" nowrap="">9.7</td><td width="108" nowrap="">26.3</td><td width="117" nowrap="">19.0</td><td width="132" nowrap="">100±15</td></tr><tr><td width="109" nowrap="">16.0</td><td width="96" nowrap="">10.0</td><td width="99" nowrap="">13.1</td><td width="108" nowrap="">23.2</td><td width="117" nowrap="">14.9</td><td width="132" nowrap="">100±15</td></tr></tbody></table></h3>