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桥架敷设期间有哪些注意要点熟知?

文章来源:http://www.sddlqj.cn/   作者:电缆桥架厂家发布时间:2022-09-06 浏览次数:

返回:常见问题
电缆桥架线路的敷设一般有四种方式:直埋电缆敷设、排管电缆敷设、电缆沟或隧道内电缆敷设、桥架电缆敷设。下面济南桥架厂家为您解说。
There are generally four ways to lay cable bridge lines: directly buried cable laying, pipe laying, cable laying in cable trench or tunnel, and bridge cable laying. Next, Jinan Bridge manufacturer will explain for you.
水平敷设施工要点:
Key points of horizontal laying construction:
(1)敷设方法可用人力或机械牵引,机械敷设电缆的速度不宜超过15m/min。
(1) The laying method can be manual or mechanical traction, and the speed of mechanical cable laying should not exceed 15m / min.
(2)电缆沿桥架或托盘敷设时,应单层敷设,排列整齐。不宜交叉,拐弯处应以大截面电缆允许弯曲半径为准。
(2) When cables are laid along the bridge or tray, they shall be laid in single layer and arranged in order. It is not allowed to cross, and the allowable bending radius of large section cable shall prevail at the turning.
(3)不同等级电压的电缆应分层敷设,桥架下方应喷涂电缆走向标示。
(3) Cables with different voltage levels shall be laid in layers, and the cable direction signs shall be painted under the bridge.
电缆垂直敷设施工要点:
Construction points for vertical cable laying:
(1)垂直敷设,有条件的好自上而下敷设。土建未拆吊车前,将电缆吊至楼层顶部。敷设时,同截面电缆应先敷设低层,后敷设高层,要特别注意,在电缆盘附近和部分楼层应采取防滑措施。
(1) It shall be laid vertically and from top to bottom if conditions permit. Before the crane is removed for civil works, the cable shall be hoisted to the top of the floor. During laying, cables with the same cross-section shall be laid on the low floor first and then on the high floor. Special attention shall be paid to taking anti-skid measures near the cable tray and on some floors.
(2)电缆自下而上敷设时,小截面电缆人力可敷设时可用滑轮大绳人力牵引敷设。高层、大截面电缆宜用机械牵引敷设。
(2) When the cable is laid from bottom to top, the cable with small cross-section can be laid manually. When the cable can be laid manually, it can be pulled and laid manually by pulley and rope. High rise and large section cables should be laid by mechanical traction.
济南桥架
(3)沿桥架或托盘敷设时,每层少加装两道卡固支架。敷设时,应放一根立即卡固一根。
(3) When laying along the bridge or tray, each layer shall be equipped with at least two clamping supports. When laying, one should be placed and one should be clamped immediately.
(4)电缆穿过楼板时,应装套管,敷设完后应挂标识牌并用防火材料封堵严密。
(4) When the cable passes through the floor, it shall be installed with sleeves. After laying, it shall be hung with signboards and sealed tightly with fireproof materials.
直线段敷设施工要点:
Key points of laying in straight section:
(1)宜把电缆盘放在工井底面较高一侧的工井口外边,通过牵引钢丝绳,将电缆牵引拖过排管引到另一个井底面较低的工井。
(1) The cable reel should be placed outside the wellhead on the higher side of the working well bottom, and the cable should be pulled through the pipe row to another working well with a lower bottom by pulling the steel wire rope.
(2)排管内电缆敷设顺序原则上从下到上、从两边到中间逐层敷设,便于后期电缆施工。
(2) In principle, the cable laying sequence in the pipe row is from bottom to top, from both sides to the middle, layer by layer, so as to facilitate the later cable construction.
(3)余缆盘井应选择转角井或有中间接头前后井盘缆,且每个井盘缆不宜超过2根。
(3) The angle well or the front and rear well with intermediate joint shall be selected for the remaining cable reeling well, and no more than 2 cables shall be reeled for each well.
此外可以知道的是,为了便于施放电缆,减少电缆和管壁间的摩擦力,电缆入排管之前,可在其表面涂上与其护层不起化学作用的润滑物。更多注意事项就来我们网站http://www.sddlqj.cn咨询吧。
In addition, it can be known that in order to facilitate the laying of the cable and reduce the friction between the cable and the pipe wall, the cable can be coated with a lubricant that does not have a chemical effect with its sheath before entering the pipe. More precautions come to our website http://www.sddlqj.cn Let's consult.
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