The selection of cable tray and pipeline is the same principle, according to the cable cross-sectional area * 2.5 = bridge cross-sectional area. Then select the cable tray height and width size ≥ the cross-sectional area according to the sample. What are the precautions for cable tray selection in Shandong?

電纜橋架選型主要應(yīng)該注意一下六個(gè)方面：

The selection of cable tray should pay attention to the following six aspects:

1、XQJ型電纜橋架裝置的較大載荷支撐間距應(yīng)小于允許載荷和支撐跨距。

1. The larger load support spacing of XQJ cable tray device should be less than the allowable load and support span.

2、選擇電纜橋架寬度時(shí)應(yīng)留有一定的備用空位，以便為今后增添電纜用。

2. When selecting the width of cable tray, there should be a certain spare space, so as to add cable for the future.

3、當(dāng)電力電纜和控制電纜較少時(shí),可同一電纜橋架安裝,但中間要用隔板將電力電纜和控制電纜隔開(kāi)敷設(shè)。

3. When there are few power cables and control cables, they can be installed on the same cable tray, but the power cables and control cables shall be laid separately with a partition in the middle.
          

4、當(dāng)山東電纜橋架水平敷設(shè)時(shí)，橋架之間的連接頭應(yīng)盡量設(shè)置在跨距的1/4左右處,水平走向的電纜每隔2米左右固定一下，垂直走向的電纜每隔1.5米左右固定一下。

4. When Shandong cable tray is laid horizontally, the connector between cable trays should be set at about 1 / 4 of the span as far as possible. The horizontal cable should be fixed every 2 meters or so, and the vertical cable should be fixed every 1.5 meters or so.

5、電纜橋架裝置應(yīng)有可靠接地。如利用橋架作為接地干線，應(yīng)將每層橋架的端部用16mm2軟銅線聯(lián)接（并聯(lián)）起來(lái)，與總接地干線相通，長(zhǎng)距離的電纜橋架每隔30--50米接地一次。

5. The cable tray device shall be reliably grounded. If the cable tray is used as the grounding main line, the end of each layer of cable tray shall be connected (in parallel) with 16mm2 soft copper wire to connect with the main grounding main line, and the long-distance cable tray shall be grounded every 30-50m.

6、電纜橋架裝置除需屏蔽裝保護(hù)罩外，在室外安裝時(shí)應(yīng)在其加裝保護(hù)罩，防止日曬雨淋，對(duì)如需焊接安裝時(shí)，焊件四周的焊縫厚度不得小于母材的厚度，焊口須防腐處理。

6. In addition to shielding and protective cover, protective cover shall be installed on the top layer of cable tray device during outdoor installation to prevent sunlight and rain. When welding and installation is required, the thickness of weld around weldment shall not be less than that of base metal, and the weld joint shall be treated with anti-corrosion.

了解了以上六點(diǎn)注意事項(xiàng)以后，能夠更好的幫助我們進(jìn)行電纜橋架選型。感謝您的閱讀，希望以上內(nèi)容對(duì)您有所幫助，如您想了解更多精彩內(nèi)容請(qǐng)點(diǎn)擊我們的官網(wǎng)：山東電纜橋架http://m.ymmgjx.net。

After understanding the above six points, it can help us to select the cable tray better. Thank you for reading, hope the above content is helpful to you, if you want to know more wonderful content, please click our official website: Shandong cable bridge http://m.ymmgjx.net .