tray bonding

[opm electrical]

what do most do with tray to ensure its bonded, earth tags at each joint like on galv trunking or are the joins substantial enough, only ask as a dont generally use it but its specced on a job to install for data cabling and can i run power cables in the same tray if i keep them segregated?

 

[Essexboy7]

on tray you need to use earth braids at each joint.Dont use earth tags.I cant see why you couldnt run power and data on the same tray as long as they are segregated but i would check the spec to see if there is anything against it

 

[Knobhead]

Have a look at THIS

 

[ian.settle1]

Have a look at THIS

Tony is this a US site?

 

[benji]

generally use wire basket for data lot easier to install, bond at one end if correct joints are used

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generally use wire basket for data lot easier to install, bond at one end if correct joints are used

 

[benji]

bit more info , if your using the basket as part of the earthing system it should be bonded at each end and every 15 mtr of the run
CABLOFIL Couplers
The standard IEC 61537 states that coupler resistance must not exceed 50mΩ. The test involves running an electric current trough the system (cable trays + couplers and measuring coupler resistance.

 

[Spoon]

Nothing wrong with putting power and data cables in the same trunking as long as it has multi-compartments.
We get ours from TOTAL CABLE MANAGEMENT SOLUTIONS - specialists in trunking, cable tray and ladder: Unitrunk

 

[Spoon]

Is it cable tray or trunking you intend to use?
These are the earth links for some cable tray or trunking Earth Link | Unitrunk

 

[Knobhead]

Tony is this a US site?

Read it. Some of the best information you will get. It doesn't go in to reg's it goes in to theory and good practice.

 

[Engineer54]

We always earth our cable trays, which are pretty extensive too. We use two copper earth connections at each joint diagonally opposed. Generally our tray/basket work runs are dedicated to either comm's, LV, MV, but if the need arises i have no problem if space allows, to run LV and Comms on the same tray for shorter distances. All our comms cabling is screened and rated 600V anyway...