Cottage fed from pub next door.

[GBDamo]

The old landlord and owner has retired into the adjoining cottage. This cottage is fed from a 100 amp isolator that is Henley blocked off the meter tails from feed to the pub. The feed cable to the cottage is 16mm t&e and runs about 5-10m and feeds an old wilex rewireable fuse box. From a fuse in this board another 16mm t&e runs for about 10-15 m to a plastic non-RCD CU.

Assuming(I know) that the Ze and Ze at the CU are good I plan to swap two MCBs in the CU to run two new circuits in protected by compatible RCBOs.

Now if all tests ok I'm happy with the work I intend to do however I don't like the set up as is and have suggested that as a minimum he should look at some kind of additional protection in the form of an RCD.

Is this reasonable?

I'd look to put the RCD between the 100amp isolator and the original fuse box.

Other than nuke it from orbit, any advice.

 

[westward10]

Not sure how anyone connected a 16.0 T&E cable from the outgoing terminals of a Wylex standard board without reducing its csa.

 

[Strima]

Not sure how anyone connected a 16.0 T&E cable from the outgoing terminals of a Wylex standard board without reducing its csa.

It's a pub, would you expect the wiring to be done to any known logical standard?

 

[westward10]

Does the supply cable have circuit protection.
Is the cpc of the above cable adequate to support bonding.
Is there any main protective bonding in place.

 

[GBDamo]

Not sure how anyone connected a 16.0 T&E cable from the outgoing terminals of a Wylex standard board without reducing its csa.

One of many worms in this yet unopened can.

 

[GBDamo]

Does the supply cable have circuit protection.
Is the cpc of the above cable adequate to support bonding.
Is there any main protective bonding in place.

In order Yes, highly unlikely and to be investigated.

 

[westward10]

It is a bit confusing what you intend to do.

 

[GBDamo]

Remove two unused MCBs from the wylex CU in the cottage and replace them with RCBOs for two new radial circuits.

This will depend on:-

1. The suitability of the earthing arrangement from the cottage back to the mains head.
2. Determining how bondable services enter the cottage and ensuring they are bonded.
3. The overall load for the pub and cottage Vs the mains fuse.

The upfront RCD was merely to ease my twitchyness about the whole set up but not really my responsibility.

 

[westward10]

Will the CU take rcbos.

 

[Octopus]

I'd be providing an estimate (on the high side) and walking away ..............

 

[GBDamo]

Will the CU take rcbos.

To be investigated, could be a sub board.

 

[Strima]

Where is the water/gas fed from? If from the pub then there may be no requirement for bonding, but only testing will confirm this.

 

[GBDamo]

Where is the water/gas fed from? If from the pub then there may be no requirement for bonding, but only testing will confirm this.

Agreed, but if it's not present in the pub then work there would not be covered under my domestic installers scheme.

Like I said earlier, a potential right can of worms.

 

[Strima]

Agreed, but if it's not present in the pub then work there would not be covered under my domestic installers scheme.

Like I said earlier, a potential right can of worms.

I would say common sense should apply here however the schemes don't see it that way.

 

[GBDamo]

Not that common that common sense, might be one for the old man to do, a propper spark ;-)