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电气专业设计规范

lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>电缆管的内径与电缆外径之比不得小于</span>1.5<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>；混凝土管、陶土管、石棉水泥管除应满足上述要求外，其内径尚不宜小于</span>100mm<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.4<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>每根电缆管的弯头不应超过</span>3<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>个，直角弯不应超过</span>2<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>个。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.5<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>电缆管明敷时应符合下列要求：</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>一、电缆管应安装牢固；电缆管支持点间的距离，当设计无规定时，不宜超过</span>3m<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>。</span><span lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:
"Times New Roman"'> </span><span style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>二、当塑料管的直线长度超过</span>30m<span lang=ZH-CN style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>时，宜加装伸缩节。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.6<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>电缆管的连接应符合下列要求：</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>一、金属电缆管连接应牢固，密封应良好，两管口应对准。套接的短套管或带螺纹的管接头的长度，不应小于电缆管外径的</span>2.2<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>倍。金属电缆管不宜直接对焊。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>二、硬质塑料管在套接或插接时，其插入深度宜为管子内径的</span>1.1<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>～</span>1.8<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>倍。在插接面上应涂以胶合剂粘牢密封；采用套接时套管两端应封焊。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.7<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>引至设备的电缆管管口位置，应便于与设备连接并不妨碍设备拆装和进出。并列敷设的电缆管管口应排列整齐。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.8<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>利用电缆的保护钢管作接地线时，应先焊好接地线；有螺纹的管接头处，应用跳线焊接，再敷设电缆。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>第</span>3.0.9<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>条</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>敷设混凝土、陶土、石棉水泥等电缆管时，其地基应坚实、平整，不应有沉陷。电缆管的敷设应符合下列要求：</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>一、电缆管的埋设深度不应小于</span>0.7m<span lang=ZH-CN style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>；在人行道下面敷设时，不应小于</span>0.5m<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>二、电缆管应有不小于</span>0.1%<span lang=ZH-CN style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的排水坡度。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>三、电缆管连接时，管孔应对准，接缝应严密，不得有地下水和泥浆渗入。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<P class=MsoNormal align=center style='text-align:center;line-height:18.0pt;
mso-layout-grid-align:none'><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'><A NAME="A4"></A>第四章</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>电缆支架的配制与安装</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></P>

<p class=MsoNormal align=left style='text-align:left;line-height:18.0pt;
mso-layout-grid-align:none'><span style='font-family:宋体;mso-hansi-font-family:
"Times New Roman"'><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>第</span>4.0.1<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>条</span><span lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:
"Times New Roman"'> </span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>电缆支架的加工应符合下列要求：</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>