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电缆敷设施工技术要求.doc

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电缆敷设施工技术要求 电缆敷设施工技术要求提要:电缆敷设前检查:电缆敷设前应检查电缆型号、电压、规格等,应符合设计要求,电缆绝缘良好,1kV以上的电缆要做直流耐压试验 于房地产E网 电缆敷设施工技术要求 ①电缆敷设前检查:电缆敷设前应检查电缆型号、电压、规格等,应符合设计要求,电缆绝缘良好,1kV以上的电缆要做直流耐压试验,1kV以下的电缆用500V摇表测绝缘,检查合格后方可敷设。垂直井道内大截面电缆敷设应采用慢速卷扬机向上牵引,关健部位须有人监护,并有可靠、便捷的通讯联系。 ②桥架、托盘上敷设:桥架、托盘上的电缆敷设须在土建抹面粉刷结束后进行,支架制作设专人机械加工,防腐完整,拉线或弹线安装,间距均匀,牢固,每一段桥架可靠接地,桥架、托盘应尽可能减少弯头,且弯度应满足本组最大直径电缆弯曲半径的要求,在敷设转弯处,尤其在落差较大处,避免角度过小,损伤电缆,应尽量延长平缓过渡。采用机械牵引敷设电缆之前,在桥架、托盘上始放点、转角处正确布置滚轴,并注意选择水平与垂直转角处的滚轴与转向器,防止电缆磨损。技术人员参照电缆清单,以相互间不发生交叉为目的,编制敷设顺序号,电缆盘旋转方向应与牵拉方向一致,并保持电缆在上方沿旋转线速度方向拉出,不得沿地拖拉,严禁绞拧等损伤电缆的情况发生,敷设电缆一定要做到精心安排,统一指挥,确保人身安全,保护电缆质量。 ③电缆终端头与电缆接头制作、接驳:在电缆头及电缆接头制作前,就做好检查工作,并符合下列要求: A相位正确 B绝缘纸应无受潮现象 c所用绝缘材料应符合要求 ④电力电缆的终端头、电缆接头的外壳与该处的电缆金属护套及铠装层均应良好接地,接地应采用铜绞线,截面不小于10mm2。制作电力电缆终端头和电缆接头时,其连接管和线鼻子的规格应与线芯相符,压接之压模尺寸应与导线规格相符,压接牢固。 ⑤电缆终端头与电气装置相连接时,固定螺栓必须加弹簧垫片,连接牢固,相序正确。 于房地产E网 Measures for the routine management of moral education in Middle SchoolsMethod of conventional management of moral education in middle schoolFirst, the guiding ideology:School moral education is an organic whole of the whole education work, always adhere to the school adhere to the moral education, education for this product, and actively promote the quality education, the school building efficient curriculum system of moral education, moral education, improve the sense of attraction and appeal, enhance the moral education work for through and timeliness. Teach everyone, service education and management education, and school moral education work must be with family education and community education closely together, to form a concerted pattern, and strive to create a good atmosphere for education, and to promote the all-round development of students, to establish a scientific moral education full of vigor the For long-term mechanism.Two, the goal of moral education:To guide the students to form the correct world outlook, outlook on life, values, to cultivate students unity and mutual assistance, honest and trustworthy, law-abi
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