I had the misfortune to take the cover off this CU today ......

[Murdoch]

I mean why, just why?

 

[Andy™]

must have run out of red tape

 

[ProDave]

Which particular issue are you referring to? The very few connections in the earth terminal caught my eye.

 

[Fleeting]

Most of it is MI, imperial sized through probable metric entries. They should have at least fitted earth washers on them. The right side upper cable does not incorporate a cpc.

 

[Marvo]

The right side upper cable doesn't have a CPC but it looks like that doorbell tx has a separate multistranded wire CPC going to it.
Is that a self-drilling screw penetrating the base of the CU and nearly hitting the busbar?

 

[Murdoch]

so I was thinking single upfront rcd
micc mainly so cover used as cpc
g/y used to mark lives
too much copper on show
left hand mic damaged insulation

very poor workmanship …..


the screw is an optical illusion - it’s well behind the busbar

 

[kerching]

I bet whoever fitted it was sweating like Prince Andrew trying to get those Pyros in! Old pyro is very unforgiving, and looking at those bends...
Maybe an optical illusion but they look like they may be wedge pots so late 70s early 80s

 

[andy_spark]

Lack of a main earth conductor?
Neutral supply lead to RCD looks like it's twisted and not screwed into neutral bar correctly?

 

[mort2376]

Why did you take the cover off ? You know what's there now and have to deal with it.

 

[Murdoch]

Why did you take the cover off ? You know what's there now and have to deal with it.

Not true.

 

[apprentice87]

Why did you take the cover off ? You know what's there now and have to deal with it.

Why would that be?? If i walk down the street and see that next doors car has bald tyres, i am under no obligation to replace them..

john..

 

[mort2376]

I'm presuming ( probably wrongly ) that the op is working on something in that board or doing an eicr. Hence he will have to deal or note it.

 

[Murdoch]

I'm presuming ( probably wrongly ) that the op is working on something in that board or doing an eicr. Hence he will have to deal or note it.

Hum

Assessing a job but even if I was doing an EICR there are no C1’s so my only obligation is to deliver a proper EICR with C2’s

It’s the home owners responsibility to act on the report

 

[mort2376]

Yes hence the note it remark

 

[Marvo]

Is there actually a supply earth connected to the earth bar or is it just CPC's from the final circuit cables?

 

[Fleeting]

The main cpc to the DB is the sheath of an MI cable but it has no cpc from the gland to the earth bar.

 

[poni]

The main cpc to the DB is the sheath of an MI cable but it has no cpc from the gland to the earth bar

It was not needed when this MICC was installed, we used to do the glands up tight enough that we did not need an extra an CPC, a bit like using conduit as a CPC

 

[Captain Kirk]

I mean why, just why?View attachment 15477

WELL !!
Yes 9 out of 10 for actually getting it powered up.
A disclaimer of some sort needs to be issued after taking the cover off.
No earthing lead, No bonding, etc
This has been done by an industrial maintenance sparky who has worked with MICC but no clue about IEE regs

 

[UNG]

No earthing lead, No bonding, etc

It might not be needed it depends how good the continuity to the incoming gland is

This has been done by an industrial maintenance sparky who has worked with MICC but no clue about IEE regs

Looking at it I doubt whoever did it has worked with MICC looking at the way the lower MICC cables enter the bottom of the CU with tight bends in the conductors
Bare MI is a lot easier to rework than PVC covered and with a bit of fore thought and patience those cables could have been moved further back to avoid the tight bends under the MCB busbar
I did a lot of board changes involving MI upto 20 or so years ago and none of them looked as rough as that one when finished

 

[poni]

This has been done by an industrial maintenance sparky who has worked with MICC but no clue about IEE regs

All electricians work to the same IEE Regs, whether it's house bashing or doing real electrical work, - Industrial electricians have lots of other regs they have to follow as well as the IEE ones,