Trough type cable tray

槽式电缆桥架与托盘式电缆桥架是都可以敷设电力电缆；断面、结构形式不同而已。封闭的槽盒、无盖的托盘还有梯架都属于电缆桥架，三种桥架的结构形式不同，一些性能也有差异，比如防护性以槽式好、梯架差，但通风冷却性却相反。

Both trough type cable trays and tray type cable trays can be used for laying power cables; The cross-section and structural form are different. Closed cable trays, uncovered trays, and ladders all belong to cable trays. The three types of cable trays have different structural forms and some performance differences, such as good protective performance in the trough and poor ladder, but opposite ventilation and cooling performance.

槽式电缆桥架的优势在于屏蔽和防腐，主要适用于铺设截面小但是数量却非常多的电线电缆；而托盘式缆桥架优势在于载荷大和散热好，主要就是用于铺设截面大但是数量比较小的电力电缆。

The advantages of trough type cable trays lie in shielding and anti-corrosion, mainly suitable for laying wires and cables with small cross-section but a large quantity; The advantages of tray type cable trays lie in their large load and good heat dissipation, mainly used for laying power cables with large cross-section but relatively small quantity.

从外形来看，槽式电缆桥架是一种全封闭型电缆桥架。托盘桥架一般指的是有孔的槽式桥架。由于开了散热孔，托盘式桥架板材的厚度要更厚些。

From the appearance, the trough type cable tray is a fully enclosed cable tray. Tray trays generally refer to slotted trays with holes. Due to the opening of heat dissipation holes, the thickness of the tray type bridge board is thicker.

桥架：跨接表识，弯曲度一致

Cable tray: cross connection surface recognition, consistent bending degree

▲ 桥架跨接线连接要注意：用抓垫、平垫或把喷塑桥架的漆刮掉再用平垫、弹簧垫压紧。镀锌电缆桥架间连接板的两端不跨接接地线，但连接板两端不少于2个有防松螺帽或防松垫圈的连接固定螺栓（强标） 。于支架的接地，就是把支架与桥架连接处固定刮漆就可以（或是抓垫）。接地线小截面不小于4。

▲ Attention should be paid to the bridge jumper connection: use grab pads, flat pads, or scrape off the paint of the spray molded bridge before pressing it tightly with flat pads or spring pads. The two ends of the connecting plate between galvanized cable trays shall not be connected to the grounding wire, but there shall be no less than two connection fixing bolts (strong standard) with locking nuts or washers at both ends of the connecting plate. As for the grounding of the bracket, it is necessary to fix and paint the connection between the bracket and the bridge (or to grab a pad). The small cross-section of the grounding wire shall not be less than 4 square meters.

▲ 金属电缆桥架及其支架全长应不少于2处与接地（PE）或接零（PEN）干线相连接；

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

▲ 跨接线压线处细部做法：

▲ Detailed practice at the crimping point of the jumper wire:

注意垫片及顺序及螺栓外露的长度及接识、螺栓的位置；不能用连接螺栓固定跨接线。

Pay attention to the gasket and sequence, as well as the exposed length of bolts, grounding markings, and bolt positions; Do not use connecting bolts to secure jumper wires.

螺栓的个数；压接位置

Number of bolts; Crimping position

破漆压接不够规范，没弹簧垫及平垫

The broken paint crimping is not standardized enough, and there are no spring pads or flat pads

错误的压接，顺序不对

Wrong crimping, incorrect sequence

重要房间桥架的接地

Grounding of important room bridge

重要房间桥架的接地

Grounding of important room bridge

电井内桥架接地及标识

Grounding and identification of the cable tray in the electric well

▲ 桥架的安装：横平竖直，弯头处要平缓。当桥架分层时，好用组合架。

Installation of cable tray: Horizontal and vertical, with gentle bends. When the bridge is layered, it is easy to use a combination frame.

▲ 桥架内部要加设防火封堵或加设防火包。

Fire blocking or fire protection bags should be installed inside the bridge.

▲ 钢制30米，铝合金及塑料的15米要加伸缩节。过建筑物变形缝处（伸缩缝、沉降缝）加补偿装置。

Steel 30 meters, aluminum alloy and plastic 15 meters require expansion joints. Install compensation devices at the deformation joints (expansion joints, settlement joints) of the building.

▲ 桥架的支架间距一般要求水平的为1.5-3米，垂直的为2米一个。

The spacing between the supports of the cable tray is generally required to be 1.5 to 3 meters horizontally and 2 meters vertically.

▲ 螺母位于桥架的外侧。当支架与铝合金桥架连接时，注意防电化措施。

The nut is located on the outer side of the bridge. When connecting the bracket to the aluminum alloy bridge, pay attention to anti electrochemical measures.

▲ 注意转弯处支架的设置。

▲ Pay attention to the setting of brackets at turns.

▲ 配电室大型桥架要采用可调式组合支架 大型工程桥架弯曲度要一致。

▲ The large cable tray in the distribution room should use adjustable combination brackets, and the bending degree of the large engineering cable tray should be consistent.

三通变径使用合理

Reasonable use of tee reducer

桥架与水管交叉处桥架在上，实在没法布置的在桥架上方要做一挡水罩

The bridge is located at the intersection of the bridge and the water pipe, and if it is impossible to arrange it, a water shield should be installed above the bridge

桥架提早做在上

Build the bridge earlier

漂亮的桥架支墩

Beautiful bridge piers

托盘式桥架

cable tray 

1、槽式电缆桥架主要特点是屏蔽干扰，抗腐蚀，防火，对控制电缆屏蔽干扰和重腐蚀环境中电缆的防护都有较好效果，对控制电缆屏蔽干扰和重腐蚀环境中电缆的防护都有较好效果。适用于敷设计算机电缆、通信电缆、热电偶电缆及高灵敏系统的控制电缆等。用于敷设截面小但数量多的电线电缆。这也是弱电工程中经济实用的一种桥架。

1. The main characteristics of trough type cable trays are shielding interference, corrosion resistance, and fire prevention. They have good effects on controlling cable shielding interference and protecting cables in heavily corrosive environments. They also have good effects on controlling cable shielding interference and protecting cables in heavily corrosive environments. Suitable for laying computer cables, communication cables, thermocouple cables, and control cables for highly sensitive systems. Used for laying wires and cables with a small cross-section but a large quantity. This is also an economical and practical cable tray in weak current engineering.

2、托盘式桥架其表面处理可根据用户需要可分为镀锌、静电喷塑和热镀锌三种，防火和抗腐蚀性能要相对差一些，在重腐蚀环境中必须作特殊的防腐处理。托盘桥架底部有很多腰形孔，以利于散热，重量轻、载荷大，主要用于敷设截面大数量较少的电力电缆。

2. The surface treatment of tray type cable trays can be divided into three types according to user needs: galvanizing, electrostatic spraying, and hot galvanizing. The fire and corrosion resistance performance is relatively poor, and special anti-corrosion treatment must be carried out in heavily corrosive environments. There are many waist shaped holes at the bottom of the tray tray to facilitate heat dissipation. It is lightweight and has a large load, and is mainly used for laying power cables with a large cross-section and a small quantity.

镀锌桥架和热镀锌桥架

Galvanized and hot-dip galvanized cable trays

很多人以为镀锌桥架就是热镀锌桥架，其实是错误的，镀锌桥架不等于热镀锌桥架。

Many people think that galvanized cable trays are hot-dip galvanized cable trays, but it is actually a mistake. Galvanized cable trays are not equivalent to hot-dip galvanized cable trays.

热镀锌桥架又可分为“热浸锌”和“热镀锌”两种，镀锌就是“冷镀锌”或“电镀锌”。

Hot dip galvanized cable trays can be divided into two types: "hot dip galvanizing" and "hot dip galvanizing", with galvanizing being either "cold galvanizing" or "electro galvanizing".

镀锌桥架是用“冷镀锌板”制造而成，而热镀锌桥架是用冷镀锌桥架经过表面处理浸锌一层热镀锌制造而成，制造工艺不同。

Galvanized cable trays are made of "cold galvanized sheet", while hot-dip galvanized cable trays are made of a layer of hot-dip galvanizing after surface treatment, with different manufacturing processes.

冷镀锌桥架的冷镀锌锌层较热镀光亮，但较薄，抗锈蚀能力较弱。

The cold galvanized zinc layer of the cold galvanized bridge is brighter than that of the hot galvanizing, but it is thinner and has weaker rust resistance.

热镀锌桥架热镀锌镀层较厚，抗侵蚀能力较强。比镀锌桥架的寿命要长，无论是硬度还是耐冲击，热镀锌是占优势的。当然热镀锌桥架的成本较高。

The hot-dip galvanized coating on the bridge is thick and has strong corrosion resistance. Compared to galvanized cable trays, hot-dip galvanizing has an absolute advantage in terms of hardness and impact resistance. Of course, the cost of hot-dip galvanized cable trays is higher.

通常在工程应用的镀锌电缆桥架，其实就是冷镀锌桥架，因为热镀锌桥架制作成本较贵，厂家很少会堆积库存的，施工要求较高的工地会用到热镀锌桥架，客户去采购指定要“热镀锌桥架”，厂家才会生产定制。

The commonly used galvanized cable trays in engineering applications are actually cold galvanized trays. Due to the high production cost of hot-dip galvanized trays, manufacturers rarely accumulate inventory. Construction sites with high construction requirements will use hot-dip galvanized trays, and customers will purchase and specify "hot-dip galvanized trays" before the factory can produce customized ones.

铝合金桥架

Aluminum alloy bridge

铝合金电缆桥架具有外观漂亮、结构简单、式样独特、荷载能力大、重量轻等特点。铝合金电缆桥架表面阳极氧化后，它不但抗腐蚀、还有抗电磁干扰，尤其是抗屏蔽干扰，这是钢制桥架不可替代的。当然也较钢制桥架高很多。

Aluminum alloy cable trays have the characteristics of beautiful appearance, simple structure, unique style, large load capacity, and light weight. After anodizing the surface of aluminum alloy cable trays, they not only resist corrosion but also electromagnetic interference, especially shielding interference, which is irreplaceable for steel cable trays. Of course, the price is also much higher than that of steel cable trays.

缺点是不适用于工程防火要求较高的场所。

The disadvantage is that it is not suitable for places with high engineering fire protection requirements.

网格式桥架

Grid format cable tray

开放式网络桥架顾名思义又称为：金属网格式电缆桥架，开放式电缆桥架，网状桥架。网格式桥架来源于欧洲，是桥架的发展和创新，由于网格式的特点，网格式桥架不适用于室外或有污染腐蚀性的空气及飞溅液体的场合；适用于常见于高集成的数据机房、无尘车间、设备内外的通信、电气线路等……

Open network cable tray, as the name suggests, is also known as metal mesh cable tray, open cable tray, and mesh cable tray. The grid format bridge comes from Europe and is a development and innovation of the bridge. Due to the characteristics of the grid format, the grid format bridge is not suitable for outdoor or occasions with polluted and corrosive air and splashing liquids; Suitable for commonly used in highly integrated data rooms, dust-free workshops, communication inside and outside equipment, electrical circuits, etc

特点：

Features:

（1）提高了系统升级和维护能力，为升级留有余地；

(1) Improved system upgrade and maintenance capabilities, leaving room for upgrades;

（2）在综合布线系统可以灵活应用，适用于布线桥架的上下走线；

(2) It can be flexibly applied in the comprehensive wiring system and is suitable for the up and down routing of wiring trays;

（3）线路和设备的检修非常快速；

(3) The maintenance of lines and equipment is very fast and safe;

（4）节省了二次重复投资的昂贵成本；

(4) Saves expensive costs of secondary reinvestment;

（5）自重仅是传统桥架的1/5；

(5) The self weight is only 1/5 of that of traditional cable trays;

（6）比传统桥架节省2/3的安装时间；

(6) Save 2/3 of installation time compared to traditional cable trays;

（7）布线系统和周边生产环境更清洁，卫生和美观；

(7) The wiring system and surrounding production environment are cleaner, hygienic, and aesthetically pleasing;

（8）网状的机构使它的散热更好，有效的延长线缆的使用寿命。

(8) The mesh like structure provides better heat dissipation and effectively extends the service life of the cable.

在选择电缆桥架的荷载等级时，电缆桥架的工作均布荷载不应大于所选电缆桥架荷载等级的额定均布荷载，如果电缆桥架的支吊架的实际跨距不等于2m时，则工作均布荷载应满足要求。各种组件及支吊架在满足相应荷载的条件下，其规格尺寸应与托盘、梯架的直线段、弯通系列相匹配。

When selecting the load level of the cable tray, the working uniform load of the cable tray should not exceed the rated uniform load of the selected cable tray load level. If the actual span of the support and hanger of the cable tray is not equal to 2 meters, the working uniform load should meet the requirements. Under the conditions of meeting corresponding loads, the specifications and dimensions of various components and supports and hangers should match the straight section and bending series of trays and ladders.

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