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电缆桥架及金属线槽安装施工工作介绍

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电缆桥架及金属线槽安装施工工作介绍

在室内采用电缆桥架布线时,其电缆不应有黄麻或其他易延燃材料外护层。

Indoors using cable tray wiring, the cable should be no jute or other Yi Yan burning materials outer sheath.

在有腐蚀或特别潮湿的场所采用电缆桥架布线时,应根据腐蚀介质的不同采取相应的防护措施,并宜选用塑料护套电缆。

In corrosion or special damp places using cable tray wiring, should take the corresponding protective measures according to different corrosion medium, and appropriate chooses plastic sheath cable.

电缆桥架(托盘)水平安装时的距地高度一般不宜低于2.50m,垂直安装时距地1.80m以下部分应加金属盖板保护,但敷设在电气专用房间(如配电室,电气竖井、技术层等)内时除外。

Cable tray (tray) level when installation should not be commonly less than 2.50 m from ground height, vertical distance to 1.80 m in the following sections when installation should add metal cover plate to protect, but lay in electrical special room (such as substation, electrical shaft, technology level, etc.) within the exception.

电缆桥架水平安装时,宜按荷载曲线选取最佳跨距进行支撑,跨距一般为1.5~3m。垂直敷设时,其固定点间距不宜大于2m。

When mounted horizontally, cable tray should be selected according to the load curve best support span, span is generally 1.5 ~ 3 m. Vertical installation, the fixed point spacing should not be greater than 2 m.

几组电缆桥架在同一高度平行安装时,各相邻电缆桥架间应考虑维护、检修距离。

Several groups of parallel installation cable tray in the same height, the distance between adjacent cable tray should consider the maintenance or overhaul.

In the cable bridge frame can not span cable laying, cable cross section in the bridge fill rates: power cable should not be greater than 40%; Control cable should not be greater than 50%. The minimum net is apart from the cable tray with a variety of pipeline.

管道类别 平行净距(m) 交叉净距(m)

Pipe category Parallel to the net (m) cross net margins (m)

一般工艺管道 0.4 0.3

General process piping 0.4 0.3

具有腐蚀性液体(或气体)管道 0.5 0.5

Corrosive liquid (or gas) pipe 0.5 0.5

热力管道 有保温层 0.5 0.5

The heat pipe thermal insulation layer of 0.5 0.5

无保温层 1.0 1.0

No thermal insulation layer of 1.0 1.0