The design and construction of weak current bridge is a part of weak current project. Compared with the central computer room equipment, it is irrelevant, but it is the foundation of weak current engineering. On the one hand, bridges are roads and bridges. Cables effectively connect the central machine room and terminal equipment together to form an organic whole. On the other hand, the bridge protects the cable from being pulled, dragged, scratched or touched, preventing the main cable from being suspended for a long time and maintaining good mechanical properties for a long time. Therefore, we should not ignore the role of bridges, but also face up to possible problems.

　　1.設計中存在的問題

　　1. Problems in design

　　1.弱線槽設計消耗:

　　1. Design consumption of weak trunking:

　　在綜合布線系統中，更值得注意的是水平分系統電纜橋架規格的計算，這也是該地區電纜橋架消耗的環節。在綜合布線系統中，辦公室網絡和電話系統布線所占比例，需要覆蓋每個辦公室的每一個角落。這些電纜通常使用六種較粗的電線，以及到桌面的光纖。從終端到機房，電纜的收斂性越來越大，所以在路徑上可以采用各種橋梁規格，節約成本。

　　In the generic cabling system, the most noteworthy is the calculation of the cable bridge specifications of the horizontal sub-system, which is also the largest part of the cable bridge consumption in this area. In the generic cabling system, office network and telephone system cabling accounts for the largest proportion, which needs to cover every corner of every office. These cables typically use six thicker wires, as well as fiber optic to the desktop. From the terminal to the machine room, the convergence of the cable is more and more big, so various bridge specifications can be used in the path, saving cost.

　　其他弱電線路，如:火災報警系統(包括廣播系統)是飛機上配備更多的，但飛機管道已被埋入;樓宇自控系統的所有設備和管道集中在新風室、空調室、冷凍室、水箱、控制室等房間，飛機上基本沒有設備。可以適當地使用螺紋管來促進連接。有線電視系統通常在標準層(辦公層)，端口只設置在總經理室和會議室。視頻監控系統一般安裝在走廊或電梯廳的兩端。一般公共走廊內只設置電子巡更系統和手機覆蓋系統的多點。防盜報警系統和門禁系統隨機設置。除公司嚴格管理外，總公司只在入口處設置總開關，重要部位設置防盜探測器。

　　Other weak current lines, such as fire alarm system (including broadcast system), are the most equipped on the aircraft, but the aircraft pipeline has been buried; all equipment and pipelines of building automatic control system are concentrated in the fresh air room, air conditioning room, freezing room, water tank, central control room and other rooms, and there is basically no equipment on the aircraft. Threaded pipe can be used properly to facilitate connection. The cable TV system is usually on the standard floor (office floor), and the port is only set in the general manager's room and meeting room. The video monitoring system is generally installed at both ends of the corridor or elevator hall. In general, the public corridor is only equipped with multiple points of electronic patrol system and mobile phone coverage system. Anti theft alarm system and access control system are set randomly. In addition to the strict management of the company, the head office only sets the main switch at the entrance, and sets the anti-theft detector at the important parts.

　　2.弱線槽安裝位置:

　　2. Installation position of weak trunking:

　　頂棚空間非常有限，各種管道都是水平和水平的，各種設備上下交錯，特別是在走廊區域，所有項目都很擁擠。沒有薄弱的橋梁的地方。一般先安裝在風管、消防管和噴淋管中。因此，橋梁設計應綜合考慮，并與其他進行適當的協商。施工前，更好多單位編制綜合管理圖，協商各自橋梁的位置。為了避免擋住強的路，我們不得不取消重做的路。

　　Ceiling space is very limited, all kinds of pipes are horizontal and horizontal, all kinds of equipment are staggered up and down, especially in corridor area, all projects are crowded. Where there are no weak bridges. Generally, it is installed in air pipe, fire pipe and spray pipe first. Therefore, bridge design should be considered comprehensively and properly negotiated with other disciplines. Before construction, it is better for multiple units to prepare comprehensive management drawings and negotiate the positions of their professional bridges. In order to avoid blocking the road of strong profession, we have to cancel the road of remaking.

　　此外，從配線架到工作區域內各信息口的雙絞線長度不應大于90m，電纜橋架路線不應過度纏繞。特別是在建筑物結構復雜的情況下，適當增加通信電纜橋架或設置多個接入點，也能有效避免網絡電纜敷設距離過長。

　　In addition, the length of the twisted pair from the distribution frame to each information port in the working area shall not be greater than 90m, and the cable bridge route shall not be excessively twisted. Especially in the case of complex building structure, it can also effectively avoid the long laying distance of network cable by properly increasing communication cable bridge or setting multiple access points.

　　2建設問題

　　2. Construction issues

　　1. 弱電立井預埋箱與立橋連接

　　1. Connection between embedded box of weak current shaft and vertical Bridge

　　這是建筑中更常見的問題之一。一般設計院弱電井圖的設計深度受限于預埋箱、設備箱、豎井槽的位置和規格，布局可以考慮。

　　This is one of the most common problems in architecture. The design depth of general design institute's weak current well drawing is limited by the location and specification of embedded box, equipment box and shaft slot, so the layout can be considered.

　　在項目初期，無法從各個方面去評估業主的需求，弱電項目滯后。在后期，業主(尤其是辦公樓)對弱電的需求和功能發生了很大的變化，前期的設計無法估計后期的需求和變化。因此，只做傳統的設計是不可原諒的。

　　In the early stage of the project, it is impossible to evaluate the needs of the owner from all aspects, and the weak current project lags behind. In the later stage, the owner (especially the office building) has a great change in the demand and function of weak current. The design in the early stage can not estimate the demand and change in the later stage. Therefore, it is inexcusable to only do traditional design.

　　2.在施工后期，處理這種聯系的方式只有兩種:

　　2. In the later stage of construction, there are only two ways to deal with this connection:

　　它可以連接到小槽或鉆到垂直槽的側壁，然后通過軟管連接。這是一件簡單的事情，不應該成為問題。但由于施工安排，槽口的安裝由土建總承包商負責，甲方安排弱電總承包商通過導線進行設備安裝。在穿線之前完成連接路徑是合理的，特別是在系統主電纜之前。但在實際工程中，由于施工環節不暢通，存在著種種問題。土建工程總承包按設計圖紙施工，未及時做好側向接地準備;弱電施工單位按照波谷不屬于弱電合同范圍，為了追趕進度，不考慮后果，匆匆越過了界線。結果，電纜剛好建在橋外，無法關閉，造成被動局面。

　　It can be connected to a small groove or drilled to the side wall of a vertical groove and then connected by a hose. This is a simple thing and should not be a problem. However, due to the construction arrangement, the general contractor of civil engineering shall be responsible for the installation of the notch, and Party A shall arrange the general contractor of weak current to install the equipment through the conductor. It is reasonable to complete the connection path before threading, especially before the main cable of the system. But in the actual project, because the construction link is not smooth, there are various problems. The general contracting of civil engineering works was carried out according to the design drawings, and the lateral grounding preparation was not made in time; the weak current construction unit was not within the scope of the weak current contract according to the trough, so in order to catch up with the progress, without considering the consequences, it crossed the boundary in a hurry. As a result, the cable was just outside the bridge and could not be closed, creating a passive situation.

　　因為有很多弱電系統，有的弱電井有斷點，有的系統，如計算機網絡，從用戶終端通過弱電井到機房有一條長約90米的線路，沒有斷點。成千上萬的線路已經就位、撤線等，建成后的連接線，人力和財力都無法再投入，而線路確實存在“風險”，很容易損壞線纜，留下隱患。

　　Because there are many weak current professional systems, some weak current wells have breakpoints, and some systems, such as computer networks, have a line about 90 meters long from the user terminal through the weak current wells to the computer room, without breakpoints. Thousands of lines have been put in place, removed, etc. after the completion of the connecting line, human and financial resources can no longer be invested, but the line does have a "risk", it is easy to damage the cable, leaving a hidden danger.

　　解決這個問題的方法是在線槽邊緣做一個大的“縫隙”，用密封把電纜插入縫隙中進行保護，然后固定好蓋子。弱電雖然沒有明確的規定，但也沒有必要通過主管部門(消防報警系統和保安除外)對弱電施工的嚴格檢查，在規定期限內提出整改意見。其他的監督檢查要寬松得多，但也違反了“行業建設原則”，這是真的不允許的。

　　The only way to solve this problem is to make a big "gap" at the edge of the trunking, insert the cable into the gap with a seal for protection, and then fix the cover. Although there is no clear regulation for weak current specialty, it is not necessary to pass the strict inspection on weak current construction by the competent department (except for fire alarm system and security), and put forward rectification opinions within the specified period. The supervision and inspection of other specialties is much looser, but it also violates the "industry construction principle", which is really not allowed.

　　以上是山東電纜橋架公司小編為大家介紹的相關內容，想要了解更多內容，歡迎訪問網站：http://www.12xw.com

　　The above is the relevant content introduced by Shandong cable bridge company. If you want to know more, please visit the website: http://www.12xw.com