Whats the key advantage of using light duty perforated cable trays? The perforations in the tray bottom allow for maximum airflow to cables, so they can stay cool and won’t build up heat.

Do you need to insert a piece of 41mm strut into a piece of concrete? There is an easy way to do this, all you need to do is use concrete insert channel. You can get 41x41mm or 41x21mm concrete insert channel, which comes with concrete insert lugs pre punched into the channel itself to insert into the wet concrete. When your concrete is set, your channel is secured. The lugs are strong enough that the 41x41mm concrete insert strut has a pullout load of 1030kg with a safety factor of 3:1, while the 41x21mm has a pullout load of 600kg, still with a safety factor of 3:1.

Putting bends into ET (EzyTray), ET3, or ET5 cable tray is easy:

• Make 3 cuts between the rungs of the length of tray that you want to bend.
• Bend the tray into shape.
• Put the ET/ET3/ET5 Radius plate into place along the side of the tray, and then attach it with an CNH and SBH Nut and Bolt kit…Easy!

Check it out here https://plus.google.com/106377114613051755272/posts

Cable Tray Installation

Here is an example of how multiple cable trays can be installed.