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How to install cable tray (1)


Cable tray is divided into metal cable tray ( Pre galvanized cable tray, galvanized cable tray, hot dip galvanized cable tray, Powder coated cable tray, Stainless steel cable tray, wire mesh cable tray or basket cable tray.), Polymer cable tray, FRP or GRP cable tray adn pvc trunking.

How to install cable tray?  here we will talk about how to install polymer cable tray.

1、Cutting cable tray groove body

According to the actual material size, use the special cutting saw to cut PHQ high strength whisker flame retardant plastic cable tray.The cut saw cut shall be perpendicular to the axis of the bridge assembly (bottom, side, cover) (2%) and be cut slowly to prevent damage to the cable tray assembly.After the cutting, a grater was applied to remove the port burr edges.

2、Cable tray groove body cleaning

Before connection, the cable tray groove shall use cotton yarn or dry cloth to wipe the inside of the bottom plate, side plate and socket clean to ensure no dust sand and water trace.When the surface is stained with oil, you must use cotton yarn dipped in acetone and other cleaners to wipe clean.

3、Assembly of cable tray grooves

First put the side plate vertically on the ground, the assembly mouth up, take a bottom plate, align the assembly mouth with the special PVC glue evenly, and then use a rubber hammer to completely bite the side plate with the bottom plate, adjust the side plate with the bottom plate, wipe the glue squeezed out from the two plates, stand for 3-5 minutes until the interface glue solidifies; put the other side plate vertically on the ground and repeat the above steps, as shown in Figure. 5.2.4-1.

 

PVC trunking

 

 

4、Installation of cable tray (Straight sections)

Plug the assembled two-section cable tray grooves into the cable tray directly, and reserve a 15cm-20cm gap between the two-section cable tray grooves.Use special PVC glue to evenly brush the gap 15cm-20cm directly inside, and then evenly brush 7.5cm-10cm outside the cable tray not being directly inserted into the cable tray.Then the two sections of the cable tray is inserted in place, the length of the bridge directly installed into the side plate in the two half of the two sections of the cable tray, and the hook buckle close, in order to prevent the thermal expansion and contraction of the plastic cable tray, there is a gap of 3mm-5mm between the two cable tray grooves. Tap directly to the groove with a rubber hammer or special tool.Wipe the glue out from two plates and stand for 3-5 minutes until the interface glue is cured.Figure 5.2.4-2, Figure 5.2.4-3. When the length of the linear section cable tray exceeds 20 meters, the special cable tray expansion section shall be used for compensation.

 

cable ducttrunking

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