泉州闽雀机电有限公司

<p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, &#39;Helvetica Neue&#39;, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei UI&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif; font-size: 17px; font-variant-ligatures: normal; letter-spacing: 0.544px; orphans: 2; text-align: justify; white-space: normal; widows: 2; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);">电缆桥架在穿过防火墙及防火楼板时，应采取防火隔离措施，防止火灾沿线路延燃；防火隔离墙、板，应配合土建施工预留洞口，在洞口处预埋好护边角钢，施工时根据电缆敷设的层数和根数用L50×50×5角钢作固定框，同时将固定柜焊在护边角钢上；也可以先作好框在土建施工中砌体或浇灌混凝土时安装在墙、板中。&nbsp;</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, &#39;Helvetica Neue&#39;, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei UI&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif; font-size: 17px; font-variant-ligatures: normal; letter-spacing: 0.544px; orphans: 2; text-align: justify; white-space: normal; widows: 2; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="letter-spacing: 0.544px; line-height: 2em;">&nbsp;桥架的接地，当设计允许利用桥架系统构成接地干线回路时，应符合下列要求:</span><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, &#39;Helvetica Neue&#39;, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei UI&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif; font-size: 17px; font-variant-ligatures: normal; letter-spacing: 0.544px; orphans: 2; text-align: justify; white-space: normal; widows: 2; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);">1. 金属电缆桥架及其支架引入或引出的金属电缆导管必须接地（PE）或接零（PEN）可靠，且必须符合下列规范:<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"/>(1) 金属电缆桥架及其支架全长，与接地（PE）或接零（PEN）干线相连接不小于2处，使整个桥架为一个电气通路。&nbsp;<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"/>(2) 非镀锌电缆桥架间连接的两端跨接铜芯接地线，接地允许截面积不小于4mm2。&nbsp;<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"/>(3) 镀锌电缆桥架间连接板的两端可不跨接接地线，但连接板两端不少于2个有防松螺帽或防松垫圈的连接固定螺栓。&nbsp;<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"/>2. 盘、梯架端部之间连接电阻不应大于0.00033Ω并应用等电位联结测试仪（导通仪）或微Ω表测试，测试应在连接点的两侧进行，对整个桥架全长的两端连接电阻不应大于0.5Ω或由设计决定，否则应增加接地点，以满足要求。接地孔应消除涂层，与涂层接触的螺栓有一侧的平垫应使用带爪的专用接地垫圈。&nbsp;<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"/>3. 伸缩缝或软连接处需采用编织铜线连接。沿桥架全长另敷设接地干线时，每段（包括非直线段）托盘、梯架应至小有一点与接地干线可靠连接；在接地部位的连接处应装置弹簧垫圈，以免松动。</p><p><a href="http://www.fjmqjd.com/" target="_self" title="泉州桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">泉州桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="三明电缆桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">三明电缆桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="莆田桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">莆田桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="龙岩电缆桥架" textvalue="龙岩电缆桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">龙岩电缆桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="龙岩桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">龙岩桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="漳州电缆桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">漳州电缆桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="三明桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">三明桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="莆田电缆桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">莆田电缆桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="泉州电缆桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">泉州电缆桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" textvalue="漳州桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">漳州桥架</a><span style="color: rgb(255, 255, 255); font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(12, 82, 158);">，</span><a href="http://www.fjmqjd.com/" target="_self" title="闽雀桥架" style="box-sizing: content-box; text-decoration: none; word-break: break-all; word-wrap: break-word; margin-right: 10px; font-family: 微软雅黑; font-size: 12px; font-variant-ligatures: normal; orphans: 2; white-space: normal; widows: 2; color: rgb(255, 255, 255) !important; background: 0px 0px rgb(12, 82, 158);">闽雀桥架</a></p></p><p><img src='http://img.worldmetal.cn/202101/14/14-08-24-14-731982.jpg' alt='三明|龙岩电缆桥架' /></p>