chanli123456
发表于 2008-3-6 14:52:17
布线的一点经验(下)
<p class=MsoNormal style="BACKGROUND: white; MARGIN: 0cm 0cm 0pt; WORD-BREAK: break-all; TEXT-INDENT: 19pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" align=left><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"> 6</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">.金属管的敷设</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">:<br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">金属管暗设时应符合下列要求:</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">预埋在墙体中间的金属管内径不宜超过</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">50</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">,楼板中的管径宜为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">15~20MM</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">,直线布管</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">30</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米处设暗线盒。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">敷设在混凝土、水泥里的金属管,其地基应坚实平整。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">金属管连接时,管孔应对准,接缝应严密,不得有水和泥浆渗入。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">金属管道应有不小于</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.1%</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">的排水坡度。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">建筑群间的金属管道埋设深度不应小于</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.7</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米;在人行道下面敷设时,不应小于</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.5</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 7</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">.金属管暗设时按下列要求施工:</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 1.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">金属管应用卡子固定,支持点间的间距不应超过</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">3</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米。在距接线盒</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.3</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米处,要用管卡将管子固定。在弯头的地方,两边也要固定。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 2.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">光缆与电缆同管敷设时,应在暗管内预置塑料子管。将光缆敷设在子管内,使光缆和电缆分开布放,子管的外径应为光缆外径的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">2.5</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">倍。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 3.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">当弱电管道与强电管道平行布设时,应尽量使两者有一定的间距,以</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">13CM</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">左右为宜。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 4.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">当线路明配时,弯曲半径不宜小于管外径的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">6</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">倍,当两个接线盒间只有一个弯曲时,其弯曲半径不宜小于管外径的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">4</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">倍。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 5.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">水平线垂直敷设的明配电线保护管,其水平垂直安装的允许偏差为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">1.5%</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">,全长偏差不应大于管内径的确良</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">1/2</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 6.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">钢管不应有折扁和裂缝,管内应无铁屑及毛刺,切断口应平整、管口应光滑。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 7.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">薄壁电线管的连接必须采用丝扣连接,管道套丝长度不应小于接头长度的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">1/2</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">,在管接头两端应加跨接地线(不小于</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">4</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">平方毫米铜芯电线)。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 8.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">砼楼板、墙及砖结构内暗装的各种信息点接线盒</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">与管连接应采用迫母固定。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 9.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">暗敷与砼内的接线盒要求用湿水泥纸或塑料泡沫填满内部,不允许用水泥纸包外面。预埋在楼板、剪力墙内的钢管、接线盒应固定牢固,预防移位。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 10.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">当电线管与设备直接连接时,应将管敷设到设备的接线盒内;当钢管与设备间接连接时,应增设电线保护软管或可挠金属保护管(金属软管)连接;选用软管接头时,不得利用金属软管作为接地体。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 11.</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">镀锌钢管或可挠金属电线保护管的跨接接地线,宜采用专用接地线卡跨接,不应采用熔焊连接。明配钢管应排列整齐,固定点的间距应均匀,钢管管卡间的最大距离应符合规范的要求:管卡与终端、弯头中点、电气器具或接线盒(箱)。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 12. </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">边缘的距离宜为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">150—500</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">毫米,中间的管卡最大间距为:厚壁钢管</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">DN15—20</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">1.5</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米,薄壁钢管</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">DN15—20</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">1.5</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米,天花吊顶内敷设的钢管应按明配管要求施工。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 13. </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">管内穿线前应将管内积水及杂物清除干净,导线在管内不得有接头,接头应在接线盒内进行,管口处应加塑料护咀,不同回路、不同电压等级、交流和直流的导线不应穿入同根管内。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> 14. </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">管线穿过建筑物伸缩缝时,应在伸缩缝两端留接线盒和接地螺栓。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">四.弱电电缆敷设</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆敷设前须先核准电缆型号、截面是否与设计相同,进行目测和物理粗测。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆敷设前必须详细勘查放缆现场环境,确定最佳放缆方案。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">对截面为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">25</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">平方毫米及以上电缆,放缆时应增设电缆导向缆辘,以避免拉伤电缆。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆敷设应根据用电设备位置,在桥架内由里到外整齐排列。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">对于使用电缆规格相同的设备,放缆时应先远后近。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆固定时,在转弯处弯曲半径不小于电缆直径的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">6</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">倍。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">每放一个回路,都必须在电缆头、尾上绑挂电缆铭牌,铭牌上应编上每回路编号、电缆型号、规格及长度。也可号码管作标识。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">布放电缆的牵引力,少于电缆允许张力的</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">80%</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">。对直径为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.5</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">毫米的双绞线,牵引拉力不能超过去时</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">100N</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">;直径为</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">0.4</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">毫米的双绞线,牵线力不能超过</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">70N</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">对批量购进的四对双绞电缆,应从任意三盘中抽出</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">100</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">米进行电缆电气性能抽样测试。对电缆长度、衰减、近端串扰等几项指标进行测试。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">五.电缆头制作安装</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆头制作前应校对,对其物理性能进行粗测;对不同功能的电缆可用摇表、万用表、电话机待设备进行测量。四对</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">UTP</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">双绞线,必要时打上模块实测。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">制作电缆头前,根据连接的设备、模块考虑电缆的预留余量。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">电缆进入配电箱(柜)内应剥去电缆外层保护皮,并用尼龙扎带等加以固定。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">铠装电缆引入电箱后应在铠钾上焊接好接地引线,或加装专门接地夹。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">在配电箱内接线空间一般比较宽裕,选用压接铜线耳制作电缆头,在电视上一般使用开口线耳制作电缆头。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">采用压接线耳,在压接线耳两端朝不同方向和压接一次,采用开口线耳时,将开口处敲紧敲密,并涂上非酸性焊锡膏后灌锡减低接触电阻。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">压接线耳截面应与导线截面相同,开口线耳载流量不应低于导线载流量。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">在有腐蚀性或对供电要求较高的场所,所有铜</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt">-</span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">铜接点都应搪锡或加涂导电膏,以减少接触面发热。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">线耳压接完毕后均应彻底清理干净,并包扎与相序一致的色带。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><br /> l </span><span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma; mso-font-kerning: 0pt">控制电缆头两端导线压接接线端子后必须包扎良好。</span><span lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></p><p class=MsoNormal style="BACKGROUND: white; MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" align=left><span lang=EN-US style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: Tahoma; mso-font-kerning: 0pt"><o:p> </o:p></span></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><span lang=EN-US><o:p><font face="Times New Roman" size=3> </font></o:p></span></p>
hithyo
发表于 2008-3-9 23:43:43
<p>虽然是这样那样的标准,可是我见工地上很多都没有按标准做哦,尤其是隐蔽工程,这对以后维护造成很大麻烦哦!</p>
xyjin1986
发表于 2008-3-10 11:52:12
可不可以说一下工地上怎么做?
兆业
发表于 2008-3-14 12:19:02
不错,支持!
bjx1998rw
发表于 2008-3-14 22:13:12
<p>学习学习</p><p> </p>
xiaxia0599
发表于 2008-4-8 23:08:36
<img height=24 src="Images/Emoticons/41.gif" width=24 border=0 />
wangge19730315
发表于 2008-4-9 13:41:44
顶一下<img height=24 src="Images/Emoticons/48.gif" width=24 border=0 />
shahaizi2008
发表于 2008-4-10 23:35:54
<p>我看过这个了 呵呵</p>
zhoujirong
发表于 2008-4-11 15:02:58
不错,顶下
gjh1987118
发表于 2008-4-21 09:13:43
<p>可以的~~ 值得参考~~~~~~~~~</p>