梯形電纜橋架橫檔標(biāo)準(zhǔn)

梯形電纜橋架一般由底板、橫檔、蓋板和連接片組成，橫擔(dān)通過(guò)焊接固定在兩邊的側(cè)板上，側(cè)板加橫檔成為橋架的主體結(jié)構(gòu)，原來(lái)橋架橫檔都是橋架生產(chǎn)廠家自己生產(chǎn)，JB/T 10216-2013 電控配電用電纜橋架標(biāo)準(zhǔn)（下面簡(jiǎn)稱2013標(biāo)準(zhǔn)）中對(duì)于橫檔的標(biāo)準(zhǔn)要求作了相關(guān)規(guī)定。下面北京京運(yùn)偉業(yè)電纜小編就給大家具體介紹一下：  

標(biāo)準(zhǔn)1

橫檔與橫檔之間的距離一般為不應(yīng)大于300mm，距離再寬的話，就無(wú)法滿足橋架的安全載荷標(biāo)準(zhǔn)要求，參照2013橋架標(biāo)準(zhǔn)，一節(jié)2米的梯式橋架如果高度為100mm，則其每米載荷的標(biāo)準(zhǔn)要求為1000N，如果為高度為200mm,則其每米的標(biāo)準(zhǔn)要求載荷為3100N。

標(biāo)準(zhǔn)2

橋架橫檔的厚度應(yīng)該與橋架側(cè)邊的厚度為同一等級(jí)，例如橋架側(cè)邊板材的厚度標(biāo)準(zhǔn)為1.5mm，則橋架橫檔板材的厚度標(biāo)準(zhǔn)也應(yīng)該為1.5mm，當(dāng)然也可以選擇2.0mm厚一等級(jí)，電纜橋架制造廠家從成本方面考慮，很少會(huì)用厚一等級(jí)的橫檔。

標(biāo)準(zhǔn)3

橋架橫檔的寬度一般為40mm,敷設(shè)在梯式橋架上的電纜與橫檔的接觸寬度不要小于25mm，這是2013標(biāo)準(zhǔn)中關(guān)于接觸面積的要求，如果接觸面積過(guò)小，會(huì)導(dǎo)致橋架單個(gè)橫檔的承載載荷過(guò)大，導(dǎo)致橫檔撓度值過(guò)大發(fā)生彎曲變形，焊的不好的話這個(gè)橫檔還會(huì)掉落。

Trapezoidal cable bridge is generally composed of a bottom plate, a rail, a cover plate and a connecting piece. The cross arm is fixed on the side plate on both sides by welding. The side plate plus the rail becomes the main structure of the bridge. JB/T 10216-2013 Electrically controlled distribution cable tray standard (hereinafter referred to as 2013 standard) has made relevant provisions for the standard requirements of the transverse. The following Beijing Jingyun Weiye cable xiaobian will give you a specific introduction:

Standard 1

The distance between the crossbar and the crossbar should not be greater than 300mm. If the distance is wider, it cannot meet the safety load standard requirements of the bridge. Referring to the 2013 bridge standard, a 2 meter ladder bridge if the height is 100mm, the standard requirements of the load per meter are 1000N. If the height is 200mm, the standard load per meter is 3100N.

Standard 2

The thickness of the bridge rail should be the same grade as the thickness of the bridge side, for example, the thickness standard of the bridge side plate is 1.5mm, then the thickness standard of the bridge rail plate should also be 1.5mm, of course, you can also choose a grade of 2.0mm thick, cable bridge manufacturers from the cost point of view, rarely use a grade of thick rail.

Standard 3

Bridge generally is 40 mm, the width of rail laying on the ladder type cable on the bridge and the rail contact width is not less than 25 mm, this is about the contact area in 2013 standard requirements, if the contact area is too small, can lead to bridge the bearing load of a single rail is too big, cause a bending deformation of the rail deflection value is too large, the rail welding is not good words will fall off.