Mains Cable Route

[Moortown89]

Hi guys I have been asked to carry out an EICR on a unit which is part of a large shed/warehouse (which back in the day was a big open planned building). The mains cable which supplies the unit (PVC/PVC tails) is routed through the full building in steel trunking which passes through various businesses before it gets to the unit that is being tested. The building/installation is approx 40 years old so unsure if this was ok at the time as I think it was maybe the first business that was converted from the original large open plan warehouse. Is this something that should be highlighted on the report? Is a warning label on the trunking enough to keep myself covered?

 

[davesparks]

What's the problem you are concerned about?

Unless I've misunderstood you've just got a distribution circuit installed in steel trunking.

 

[westward10]

Is there just one DNO supply?

 

[Moortown89]

Yes the DNO has one supply into the main switchroom, then there are various meters again in the same main switchroom which supply other businesses/outlets within the large warehouse. The unit I am working on is supplied with PVC/PVC tails in metal trunking. What I am concerned about is the fact this metal trunking passes through various businesses. They isolate their supply but there is still live cables in a trunking which is in their premises.

 

[westward10]

So it is essentially one installation. Regarding your worry of these live conductors passing through other businesses, assume something is live unless it is proved otherwise.

 

[davesparks]

I see no issue with this, it sounds like a relatively normal installation.

The use of insulated and sheathed cables inside steel trunking is a little odd, but not any kind of problem.