Be sure to select all cable types and accessories to meet the requirements of bridge standardization. Bridges in buildings can be erected independently or connected to various buildings and pipe gallery supports. Of course, if it is to be installed, it should be installed outdoors and use highly corrosive materials where it is difficult to maintain in the future. How much do you know about the acceptance requirements of cable tray? Let's have a look.

1.根據(jù)公司標(biāo)準(zhǔn)檢查橋架。

1. Check the bridge according to the company's standards.

2.檢驗(yàn)程序和方法

2. Inspection procedures and methods

(1)外觀：如果電纜橋架上的鋅涂層已損壞或其他涂層脫落。

(1) Appearance: if the zinc coating on the cable tray is damaged or other coatings fall off.

(2)電纜橋架本身要光滑且平整，并且外徑不得損壞電纜絕緣層。

(2) The cable tray itself shall be smooth and flat, and the outer diameter shall not damage the cable insulation layer.

(3)形狀：兩個(gè)相對(duì)的側(cè)面應(yīng)平行，且兩個(gè)側(cè)面應(yīng)垂直于底面，并且橫截面形狀應(yīng)筆直，并且邊緣無扭結(jié)，扭曲，裂紋和毛刺等缺陷。

(3) Shape: the two opposite sides shall be parallel, and the two sides shall be perpendicular to the bottom, and the cross-section shape shall be straight, and the edge shall be free of defects such as kink, twist, crack and burr.

3.表面處理

3. Surface treatment

橋梁框架的表面要根據(jù)施工現(xiàn)場(chǎng)環(huán)境的要求進(jìn)行貼面和包覆保護(hù)，并且各種保護(hù)層的厚度和粘附力要滿足橋梁框架的承重規(guī)范。

The surface of the bridge frame shall be covered and protected according to the requirements of the construction site environment, and the thickness and adhesion of various protective layers shall meet the load-bearing specifications of the bridge frame.

(1)厚度熱浸鍍鋅電纜橋架主體的厚度為1.53mm，小平均厚度55am，小局部厚度為45am。3mm的厚度是70am，局部是55am。

(1) The thickness of the main body of the hot-dip galvanized cable tray is 1.53mm, with a small average thickness of 55am and a small local thickness of 45am. The thickness of 3mm is 70am and 55am locally.

(2)鍍鋅鋅或鋅鎳合金。橋梁主體12am

(2) Galvanized zinc or zinc nickel alloy. Bridge body 12am

(3)氣溶膠或氣溶膠涂料。橋梁主體50am檢測(cè)方法：按(GB1764-79漆膜厚度測(cè)量方法)磁測(cè)厚儀進(jìn)行檢測(cè)。

(3) Aerosol or aerosol coating. 50am detection method of bridge main body: magnetic thickness gauge shall be used for detection according to (gb1764-79 paint film thickness measurement method).

(4)粘附力——檢測(cè)橋架自身的薄板的薄板或薄板的粘附強(qiáng)度。如果容易跌倒，則說明您沒有資格。

(4) Adhesion - test the adhesion strength of the thin plate or thin plate of the bridge itself. If you fall easily, you are not qualified.

(5)鍍鋅鋅和鋅合金。根據(jù)測(cè)試，它不應(yīng)脫落。

(5) Zinc and zinc alloys. According to the test, it should not fall off.

(6)氣溶膠或氣溶膠涂料。使用不低于(GB1720漆膜附著力測(cè)量方法)等級(jí)3的附著力測(cè)試儀進(jìn)行檢查。

(6) Aerosol or aerosol coating. Use an adhesion tester not lower than grade 3 of (gb1720 method for measuring adhesion of paint film) for inspection.

4.亮度。防護(hù)處理表面的光澤度不應(yīng)小于60，并且可以直接顯示光澤度計(jì)測(cè)得的數(shù)值。

4. Brightness. The gloss of the protective treated surface shall not be less than 60, and the value measured by the gloss meter can be directly displayed.

5.耐鹽霧。表面保護(hù)層要具有表4中指定的3級(jí)耐鹽霧性。

5. Salt fog resistance. The surface protective layer shall have grade 3 salt spray resistance specified in Table 4.

6.制造精度

6. Manufacturing accuracy

(1)橋長(zhǎng)度的偏差。當(dāng)長(zhǎng)度小于或等于2米時(shí)，偏差為2mm3mm，當(dāng)長(zhǎng)度大于2mm時(shí)，偏差為4mm

(1) Deviation of bridge length. When the length is less than or equal to 2m, the deviation is 2mm 3mm, and when the length is greater than 2mm, the deviation is 4mm

(2)支撐臂處于自由狀態(tài)時(shí)，垂直高度公差大為1/100

(2) When the support arm is free, the vertical height tolerance is greater than 1 / 100

(3)其他尺寸公差符合(GB1804-V尺寸公差)。

(3) Other dimensional tolerances comply with gb1804-v dimensional tolerances.

(4)橋面的平整度熱浸鍍鋅防護(hù)處理的平整度不超過每米8mm。電鍍鋅和噴漆，防護(hù)處理的平整度公差不超過每米4mm

(4) The flatness of bridge deck shall not exceed 8mm per meter after hot-dip galvanizing protection treatment. The flatness tolerance of galvanizing, painting and protective treatment shall not exceed 4mm per meter

(5)橋梁寬度的偏差。當(dāng)寬度大于400mm時(shí)，偏差為4mm，當(dāng)寬度小于或等于400mm時(shí)，偏差為3mm。取蓋板的正偏移量，取插槽底部寬度的負(fù)偏移量。

(5) Deviation of bridge width. When the width is greater than 400mm, the deviation is 4mm; when the width is less than or equal to 400mm, the deviation is 3mm. Take the positive offset of the cover plate and the negative offset of the bottom width of the slot.

7.電纜橋架要有良好的接地連接，當(dāng)該橋架用連接板連接時(shí)，任何未上漆的點(diǎn)與接地端子之間的連接電阻不得大于0、1歐姆。

7. The cable tray shall have a good grounding connection. When the tray is connected with a connecting plate, the connection resistance between any unpainted point and the grounding terminal shall not be greater than 0 or 1 ohm.