I think this is wrong, thoughts please | on ElectriciansForums
Guest viewing is limited

Discuss I think this is wrong, thoughts please in the UK Electrical Forum area at ElectriciansForums.net

Joined
Jun 20, 2017
Messages
114
Reaction score
103
Location
Essex
Hi guys, been doing more testing and reporting on small blocks of flats and came across this scenario.

Block is PME with a small intake at the bottom containing most of the meters. The sub-mains/laterals then run through pvc conduit to the ccus in the flats where there is an Henly block making the PME connection. I think this is wrong as any fault current would have to go through the meter. What's your thoughts?
Pix below...


[ElectriciansForums.net] I think this is wrong, thoughts please [ElectriciansForums.net] I think this is wrong, thoughts please [ElectriciansForums.net] I think this is wrong, thoughts please
 
If I've understood the installation correctly, it's prohibited by reg 543.4.1 and ESQC reg 8(4) is quoted also.

The PME connection is only just in the flat each time, before the Neutral goes into the ccu, it was because the meters are remote it means a fault current would go through the meter.
Some of the flats have had the meters moved into them, (that's the Henly blocks you can see above the trunking in my original post) and the pme connection is before meter so I have no issues with them.
 
Ok, but where is the supplier's fuse? ( i.e. Can you describe the fusing arrangement for the building and the flats :) )

Yes the service head is a 100A 3 phase PME job that feeds a Ryefield board. Each fuse feeds a flat. Some of the meters for the flats are mounted on a trunking next to the Ryefield board. As said the laterals are run in PVC conduit with no separate Earthing conductor.
 
Sounds like the PME is done ok at the building cut out, but they have failed to link the MET to each of the flats. Instead they have created additional N-E links in contravention of reg 543.4.3 (is my thought).
 

Reply to I think this is wrong, thoughts please in the UK Electrical Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Sticky
  • Article
Wicked I've just actually looked through it and it's very smart. Some good stuff in it. There's a tile association company that do a magazine...
Replies
2
Views
315
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
295
  • Article
Hi everyone, Another weekend, another sale! Get ready for colder days with Haverland Radiators, combining efficiency with modern design. Keep...
Replies
0
Views
361

Similar threads

Thanks all for your comments, advice and suggestions. The following is probably pretty boring for most, and is simply a summary of how the job...
Replies
8
Views
782

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

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top