drawings showing cable trunking

[shireelectrical]

Hi all,

just a question to see if anybody had drawings or plans off installations where there is cable tray and armoured cable to be installaed i am trying to find out about the industrial side off things have only ever worked on domestic and would like to see what the drawings look like before i head into this side off the industry many thanks in advance

craig

 

[Guitarist]

Good luck "heading off" into industrial electrics. I'm assuming that you will be working with some experienced guys.

 

[Knobhead]

A lot depends on the type of work your going in to. Only on very large jobs have I had a drawing showing a specific rout for cable runs. Normally you will get a cable schedule and a specification of materials to be used. IE ladder, tray or hangers. After that it would be up to you to use your common sense. And believe me over the years I’ve see some beauties. My favourite was a ladder rack run at head height across an emergency access rout in a chemical plant. (One contractor tripping over his bottom lip as I told him to get it shifted).

 

[D80]

Best ever, Royal Hospital in Belfast. Spark was told to install containment at 2.8M. That was, 2.8M from FFL. Not 2.8M from ceiling as he installed it. You had to step over it and it was in a corridor outside the plant room. Braincells would be lonely there :rolleyes2:

 

[ipf]

It's usually a case of visiting site and planning routes. As Tony says, it's generally the major jobs where actual routes are specified. In many cases, the architects or designers just want the finished article and either have no idea or couldn't care less about such 'minor' issues.

 

[Dcf]

only ever seen drawings with trunking routes etc on big jobs with a spec like the phone book.still doesn't stop them making an arse of it though. an example 50x 50m plant room 33kv substation 3x 11kv packaged subs ,generator backup et all,cable ladder installed hv and lv cabling all installed .then somebody looks at the ladder and says is that not upside down???.......indeed it was.couldnt put a pipe in snowman's mouth correctly!

 

[Engineer54]

If some are finding it hard to follow an electrical services drawing, just wait till you see a ''Combined Services'' drawing then!!

If you can wait a little while, i'll may be able to show you a small example of part of our service building electrical layout drawing, showing cable tray, trunking and conduit runs etc... Just now in the process of doing the initial design reviews to contractors submitted drawings, not seen the service building layout as yet!! ...

 

[Knobhead]

I don’t know about hard to follow, trying to find a non existent drawings has always been my problem.

Electrical, gas, water, air, hydraulic and instrument all fighting each other. At times it’s near come to blows. The instrument gang always used to suffer, signal cable snaking along our ladder rack or around gas or air pipes, they’d come back the next day to find it all on the floor. Eventually they learnt how to run racking.

Would be interesting to see one of your drawings.