槽式橋架作為布線工程的一個(gè)配套項(xiàng)目，目前尚無專門的規(guī)范指導(dǎo)，各生產(chǎn)廠家的規(guī)格程式缺乏通用性，因此，設(shè)計(jì)選型過程應(yīng)根據(jù)弱電各個(gè)系統(tǒng)電纜的類型、數(shù)量，合理選定適用的橋架。下面濟(jì)南電纜橋架廠家為您講解更多：

As a supporting project of wiring engineering, there is currently no specific specification guidance for slot type cable trays. The specifications and programs of various manufacturers lack universality. Therefore, the design and selection process should reasonably select suitable cable trays based on the type and quantity of cables in various weak current systems. Now, the manufacturer of cable tray in Jinan will explain more to you:

(1)、確定方向：根據(jù)建筑平面布置圖，結(jié)合空調(diào)管線和電氣管線等設(shè)置情況、方便維修，以及電纜路由的疏密來確定槽式橋架的佳路由。在室內(nèi)，盡可能沿建筑物的墻、柱、梁及樓板架設(shè)，例如在利用綜合管廊架設(shè)時(shí)，則應(yīng)在管道一側(cè)或上方平行架設(shè)，并考慮引下線和分支線盡量避免交叉，如無其它管架借用，則需自設(shè)立(支)柱。

(1) Determine the direction: Based on the building layout plan, combined with the installation of air conditioning pipelines and electrical pipelines, convenient maintenance, and the density of cable routing, determine the optimal route for the trough type bridge. Indoor, it is best to erect along the walls, columns, beams, and floors of the building. For example, when using a comprehensive pipe gallery, it should be erected parallel to one side or above the pipeline, and consideration should be given to avoiding the intersection of down conductors and branch lines as much as possible. If there are no other pipe racks to borrow, it is necessary to set up (support) columns by oneself.

(2)、荷載計(jì)算：計(jì)算槽式橋架主干線縱斷面上單位長度的電纜重量。

(2) Load calculation: Calculate the weight of the cable per unit length on the longitudinal section of the trunk line of the trough bridge.

(3)、確定橋架的寬度：根據(jù)布放電纜條數(shù)、電纜直徑及電纜的間距來確定槽式橋架的型號(hào)、規(guī)格, 托臂的長度,支柱的長度、間距、橋架的寬度和層數(shù)。

(3) Determine the width of the cable tray: Based on the number of cables laid, cable diameter, and cable spacing, determine the model and specifications of the trough type cable tray, the length of the support arm, the length and spacing of the pillars, the width and number of layers of the cable tray.

(4)、確定安裝方式：根據(jù)場所的設(shè)置條件確定橋架的固定方式，選擇懸吊式、直立式、側(cè)壁式或是混合式，連接件和緊固件一般是配套供應(yīng)的，此外，根據(jù)橋架結(jié)構(gòu)選擇相應(yīng)的蓋板。

(4) Determine the installation method: Determine the fixing method of the bridge based on the setting conditions of the site. Choose the suspension type, vertical type, side wall type, or hybrid type, and the connectors and fasteners are generally supplied in a complete set. In addition, select the corresponding cover plate according to the bridge structure.

(5)、繪出槽式橋架平、剖面圖,局部部位還應(yīng)繪出空間圖，開列材料表。

(5) Draw a flat and sectional view of the trough type cable tray, and also draw a space map for local parts, listing the material list.

2、如與電力槽式橋架合用時(shí)，應(yīng)將電力電纜和弱電電纜各放置一側(cè)，中間采用隔板分隔。

2. When used in conjunction with power trough type cable trays, power cables and weak current cables should be placed on one side respectively, separated by partitions in the middle.

3、弱電電纜與其它低電壓電纜合用橋架時(shí)，應(yīng)嚴(yán)格執(zhí)行選擇具有外屏蔽層的弱電系統(tǒng)的弱電電纜，避免相互間的干擾。

3. When using a bridge with weak current cables and other low-voltage cables, strict selection of weak current cables with external shielding layers should be carried out to avoid mutual interference.

槽式橋架安裝和橋架內(nèi)電纜敷設(shè)，應(yīng)按已批準(zhǔn)的設(shè)計(jì)文件施工。

The installation of trough type bridge and the laying of cables inside the bridge should be carried out in accordance with the approved design documents.

金屬槽式橋架及其支架和引入或引出的金屬電纜導(dǎo)管必須接地（PE）或接零（PEN）可靠，且必須符合下列規(guī)定:

The metal trough type cable tray and its bracket, as well as the metal cable conduits that are introduced or led out, must be reliably grounded (PE) or neutral (PEN), and must comply with the following regulations:

金屬槽式橋架及支架全長應(yīng)不少于2處與接地（PE）或接零（PEN）干線相連接；

The total length of the metal trough type bridge and bracket should not be less than 2 places connected to the grounding (PE) or neutral (PEN) main line;

非鍍鋅槽式橋架間連接板的兩端跨接線銅芯接地線，接地線小允許截面積不小于4mm2；

The copper core grounding wire at both ends of the connecting plate between non galvanized trough type cable trays, with a small allowable cross-sectional area of no less than 4mm2 for the grounding wire;

鍍鋅槽式橋架間連接板的兩端不跨接接地線，但連接板兩端不少于2個(gè)有防松螺帽或防松墊圈的連接固定螺栓。

The two ends of the connecting plate between the galvanized trough type cable tray shall not be connected to the grounding wire, but there shall be no less than two connection fixing bolts with locking nuts or washers at both ends of the connecting plate.

電纜敷設(shè)嚴(yán)禁有絞擰、鎧裝壓扁、護(hù)層斷裂和表面嚴(yán)重劃傷等缺陷。

Cable laying is strictly prohibited from defects such as twisting, flattening of armor, breakage of protective layer, and severe surface scratches.

槽式橋架處如有防火要求的場所，應(yīng)采取防火隔離措施。

If there are fire prevention requirements at the slot type bridge, fire isolation measures should be taken.

比起造價(jià)昂貴、高科技的硬件和軟件，橋架比較很不起眼，也很少為人關(guān)注，但它卻也是整個(gè)布線工程中不可缺少的部分。您有需求就來我們網(wǎng)站http://m.ymmgjx.net咨詢吧！

Compared to expensive and high-tech hardware and software, cable trays are relatively inconspicuous and rarely receive attention, but they are also an indispensable part of the entire wiring project. Come to our website if you have any needs http://m.ymmgjx.net Consult!