Discuss Cable tray in the Commercial Electrical Advice area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

i don't think there;s a hard and fast rule. i reckon about 6-7-ft. ( thats around 2 french revolutionary made up metres)
 
Its actually a very simple question which has a very complex answer, too many variants here to give a rule of thumb even-

-Type of tray (light, medium or heavy duty)
-Load on tray (Plus possible future additions)
-The material your fixing to.
-Any changers to the tray run like bends, lifts and drops etc may need additional support.
-Method of support (using rods can be done in various ways like direct to tray or a trapeze set-up that the tray sits on and often the better option of these particular 2 methods)

....to name a few considerations

Manufacturers usually have a PDF for guidance so just find out who makes it and look it up online.
 
they should be outside the tray, supporting 8" pieces of unistrut. the strut then supports the tray. how else can you get rid of all those zebedees lying round in your kit?
 
http://www.schneider-electric.co.uk...ay_and_ladder_best_practice_guide_2012-11.pdf

Page 63 onwards. Basically you need to calculate the weight of the tray plus weight of the cables to be installed then use the manufacturers data of the supports to space them according to the weight of load. You also need to consider the location its to be installed and allow for any external influences likely to be incurred...Like wind etc if installed outside for example.
 
Yes Andy.

Gripple do a full range of hangers for basket, trunking and even ladder. Although with ladder it will still require some strut to tie it in if large fault currents are possible.

It's quicker (can be a lot quicker) but higher purchase costs.

All the cool kids are using it...you know, the sparks who wear camo snickers pants and sun glasses.
 
Yes Andy.

Gripple do a full range of hangers for basket, trunking and even ladder. Although with ladder it will still require some strut to tie it in if large fault currents are possible.

It's quicker (can be a lot quicker) but higher purchase costs.

All the cool kids are using it...you know, the sparks who wear camo snickers pants and sun glasses.
I tried to be cool like that in the summer and got arrested.
 
I actually am sporting crotchless work trousers right now. The missus will be stitching them this weekend though. The rip has been getting bigger and nearly had a few "incidents" in front of customers this week.

As for the gripple tray supports, I'll leave them to the cool kids. I like my tray non-swingy.
 
Used the gripple wire and assesories when working on a Hospital which was built on a seismic fault line. No stud allowed just double sided strut with fabricated plates used as Hangers. gripple wire for every other bracket. Expansion joints every 20 meters!! Nightmare
 

Reply to Cable tray in the Commercial Electrical Advice area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock