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One multi core.

Pull boxes are small boxes on the edge of the foundation. these are where each conduits starts. https://files.engineering.com/getfile.aspx?folder=f3d0bb3e-adbb-4023-9c2c-75b5ef0610bd&file=jb.jpg

Thank you all for the ideas! @littleinch Rough pic attached (its a crude representation in ms paint, sorry!). The only places where we can actually see the cables are the pull boxes located on the foundation edges; rest of the conduits buried in the foundation. its a single run cable starting...

Installing new conduits is out of the equation. They will build a whole new tank in that case, if it comes to that.

@resqcapt19 WOW. Its exactly the case here too. Same wire used here; we are gonna replace them with newer models. Did you face difficulty in pulling the new cables?

Photos are always difficult as cameras are not allowed; Ill google for similar images though. Cracked conduits in the middle is the nightmare scenario, we are hoping for best. Over time the heat output of the cables have been insufficient; Client wants to replace them with the latest...

We will try first with the pressurized water and lets see if it produces any results!! Also not all of them are damaged so we will replace wherever it is possible.

Thank you waross for your valuable inputs. Yes these are cryogenic tanks hence the possibility of ground freezing up. The cables are indeed heating cables pulled through continuous conduits. Yes I am based in ME and I have encountered this exact problem in two other sites in the region (current...

Thank you all. Sorry about the late reply. These are SS tubes (3/4" ID) ID about 0.58" length over 20m with just heating cables pulled through them. installed over 40 years ago.

Hi all. We have been tasked with replacement of old heating cables pulled through conduits embedded in the foundation of storage tanks (for preventing frost heave). However, these conduits (3/4") are ancient and in many places clogged up. Just pulling out those old cables has proven to be...

Hello What are the precautions(against the induced currents in the armor) that should be followed while glanding single core armored cables inside a panel? In this particular case, there are 12 cables in total, 3 for each phase and neutral. The cables are AWA, gland plate used is also Aluminum...

"It would help to know under which zone these poles fall under inside the plant?." - zone 2 Both fixture and JB are ex d rated. "Needless to mention that the hose needs to be properly grounded to avoid any static." - Right now, grounded at one end (where liquid tight connector is used)...

Thanks a lot sir. You were very helpful.

Thanks for the detailed reply. Yeah we already did the work but I wanted to know the reason. I am eager to learn and this has been bugging me... Yes its a liquid tight flexible cable but the point I was trying make across was we were only connecting one end of the conduit using a liquid tight...

I was hoping to know the reasoning behind this comment.

Hello We are installing a couple of 12 meter high lightpoles in an oil and gas plant and were told to use flexible conduits wherever the unarmored cables are in the open. The cables run through the inside of the poles from the JB below to the 400W exd light fixtures on the top. The cables are...