电缆桥架的安装规范标准涵盖多个方面，以下是详细的规范标准：

　　The installation specifications and standards for cable trays cover multiple aspects, and the following are detailed specifications and standards:

　　一、安装前的准备

　　1、 Preparation before installation

　　应根据桥架的平面布置图、各层标高及桥架进出建筑物的中心坐标进行定位划线，确保安装位置的准确性。

　　Positioning and marking should be carried out based on the layout plan of the bridge, the elevation of each floor, and the center coordinates of the bridge entering and exiting the building to ensure the accuracy of the installation position.

　　如果厂家未提供立柱及托臂成品，可根据设计要求现场制作或预制。制作时应将材料矫正平直，下料误差在允许范围内，切口处不应有卷边和毛刺。制作好的支架应牢固、平整、尺寸准确，并按设计要求涂刷防腐漆。

　　If the manufacturer does not provide finished columns and support arms, they can be made on site or prefabricated according to design requirements. During production, the material should be straightened and the cutting error should be within the allowable range. There should be no curled edges or burrs at the incision. The fabricated bracket should be firm, flat, accurately sized, and coated with anti-corrosion paint according to design requirements.

　　二、支架与吊架的安装

　　2、 Installation of brackets and hangers

　　支架与吊架所用钢材应平直，无显著扭曲。下料后长短偏差应在允许范围内，切口处应无卷边、毛刺。

　　The steel used for brackets and hangers should be straight and free from significant distortion. After cutting, the length deviation should be within the allowable range, and there should be no curled edges or burrs at the incision.

　　钢支架与吊架应焊接牢固，无显著变形。焊接前厚度超过一定标准的支架、铁件应打坡口，焊缝均匀平整，焊缝长度应符合要求，不得出现裂纹、咬边、气孔、凹陷、漏焊等缺陷。

　　The steel bracket and hanger should be welded firmly without significant deformation. Brackets and iron parts with a thickness exceeding a certain standard before welding should be chamfered, and the weld seam should be uniform and flat. The length of the weld seam should meet the requirements, and there should be no defects such as cracks, undercuts, pores, depressions, or missed welds.

　　支架与吊架应安装牢固，保证横平竖直。在有坡度的建筑物上安装支架与吊架时，应与建筑物的坡度、角度一致。

　　The bracket and hanger should be installed firmly to ensure horizontal and vertical alignment. When installing brackets and hangers on buildings with slopes, they should be consistent with the slope and angle of the building.

　　支架与吊架的规格一般不应小于规定值，如扁钢30mm×3mm、角钢25mm×25mm×3mm等。严禁用木砖固定支架与吊架。

　　The specifications of brackets and hangers should generally not be less than the specified values, such as flat steel 30mm × 3mm, angle steel 25mm × 25mm × 3mm, etc. It is strictly prohibited to use wooden bricks to fix brackets and hangers.

　　三、桥架的安装

　　3、 Installation of cable tray

　　桥架安装时，应使用专用连接片或成品构件进行连接，确保连接牢固可靠。直线段桥架可采用专用连接片连接，转弯、翻弯、变径、三通、四通处应采用成品构件连接。

　　When installing cable trays, specialized connecting pieces or finished components should be used for connection to ensure a firm and reliable connection. The straight section bridge can be connected with dedicated connecting pieces, and finished components should be used to connect at turns, bends, reducers, tees, and crosses.

　　桥架安装应牢固、横平竖直，接地跨接可靠。电缆桥架水平安装的支架间距为1.5~3m，垂直安装的支架间距不大于2m。

　　The installation of cable trays should be firm, horizontal and vertical, and the grounding should be reliable. The spacing between supports for horizontal installation of cable trays is 1.5-3m, and the spacing between supports for vertical installation is not more than 2m.

　　桥架的转弯、三通、弯头等连接处必须采用成品配件，保证电缆小允许弯曲半径。非镀锌桥架间连接板的两端必须跨接铜芯接地线，接地线小允许截面积不小于4mm?。

　　Finished accessories must be used at the bends, tees, elbows, and other connections of the cable tray to ensure the minimum allowable bending radius of the cable. The two ends of the connecting plate between non galvanized cable trays must be bridged with copper core grounding wires, and the minimum allowable cross-sectional area of the grounding wire shall not be less than 4mm ?.

　　桥架安装前必须核算桥架内电缆的总截面面积与桥架截面面积的比例，确保符合要求。桥架与支架间螺栓、桥架连接板螺栓应固定紧固无遗漏，螺母位于桥架外侧。

　　Before installing the cable tray, the ratio of the total cross-sectional area of the cables inside the tray to the cross-sectional area of the tray must be calculated to ensure compliance with the requirements. The bolts between the bridge and the bracket, as well as the bolts of the bridge connecting plate, should be securely fastened without any omissions, and the nuts should be located on the outside of the bridge.

　　四、特殊环境下的安装要求

　　4、 Installation requirements in special environments

　　在户外或潮湿环境下安装电缆桥架时，应采取防腐措施，如使用复合环氧树脂防腐阻燃型电缆桥架。

　　When installing cable trays outdoors or in humid environments, anti-corrosion measures should be taken, such as using composite epoxy resin anti-corrosion and flame-retardant cable trays.

　　在有爆炸危险的场所安装电缆桥架时，应符合爆炸和火灾危险环境电力装置设计规范的要求。

　　When installing cable trays in places with explosion hazards, they should comply with the requirements of the design specifications for electrical installations in explosive and fire hazardous environments.

　　电缆桥架穿越防火分区时，应在穿越处设置防火封堵。

　　When cable trays pass through fire compartments, fireproof sealing should be installed at the crossing points.

　　五、其他注意事项

　　5、 Other precautions

　　电缆桥架的安装及设计还应符合现行有关标准以及规范的规定。

　　The installation and design of cable trays should also comply with the current relevant national standards and specifications.

　　电缆桥架不应作为行人通道使用。

　　Cable trays should not be used as pedestrian walkways.

　　在容易受到机械损伤的处所或粉尘较多的场所安装电缆桥架时，应加保护罩。

　　When installing cable trays in areas prone to mechanical damage or in places with high levels of dust, protective covers should be added.

　　电缆桥架转弯处的转弯半径不应小于该桥架上电缆小允许弯曲半径的值。

　　The turning radius at the turning point of the cable tray should not be less than the maximum allowable bending radius of the cable on the tray.

　　桥架在每个支架上的固定应牢固，桥架内、外连接板应齐全，连接板的螺栓应紧固。

　　The fixing of the bridge on each bracket should be firm, and the connecting plates inside and outside the bridge should be complete. The bolts of the connecting plates should be tightened.

　　综上所述，电缆桥架的安装规范标准涵盖了多个方面，包括安装前的准备、支架与吊架的安装、桥架的安装、特殊环境下的安装要求以及其他注意事项等。在安装过程中，应严格遵守这些规范标准，确保电缆桥架的安装质量和性能。

　　In summary, the installation standards for cable trays cover multiple aspects, including preparation before installation, installation of brackets and hangers, installation of trays, installation requirements in special environments, and other precautions. During the installation process, these specifications and standards should be strictly followed to ensure the installation quality and safety performance of cable trays.

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　　This article is a friendly contribution from Shandong Cable Bridge For more related knowledge, please click http://www.sdhangfeng.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.