From a non solar guy, does this look OK

[GaryM]

here's one I did earlier!View attachment 12609 Not the best I've ever done but the only photie I've got to hand.
labels went on later before anyone comments!
Middle set of tails go to dedicated CU. Right hand tails (as we look at it) go to main CU

Moggy, make sure you don't strip the outer sheath of the tails outside of the henley block otherwise you have a single insulated conductor with no mechanical protection outside of an enclosure which would warrant a defect code on an EICR.

 

[GaryM]

HEY TC,

good pic! tails are undersized for 100amp suppliers fuse

The 20A MCB within the 2 way consumer unit would provide overload protection for the 16mm2 tails so not an issue though connecting before the suppliers meter is a serious no-no!
My 2 way solar CU is supplied with 10mm2 tails and that's not an issue either.

Absolute shocking job though. I'm just amazed somebody could actually carry out an installation like that and not give it a second thought

 

[Earthstore]

I think I have spotted another fault here chaps, they have brought the Earth in from the array, so bringing a potential into the equipmental zone, it should be on its own Earth spike, unless there are velux windows of course, which I doubt. Your thoughts?
I did not spot the RCD though, sorry.

 

[sambotc]

All looks like cheap tat as well, probably won't last more than a few years!

Think that's the roughest solar electrical install i've seen, I wonder what the roof work is like...

 

[dansk]

All looks like cheap tat as well, probably won't last more than a few years!

Think that's the roughest solar electrical install i've seen, I wonder what the roof work is like...

they keep popping up on this forum, i reckon there hundreds out their like this one and its only time before we all start picking up repair work for mis sized inverters, poor wiring, panels slipping. The trouble with that install also is were was the persons pride? who in the right mind leaves a job like that, yes ok im not proud of all my jobs, but even in my early days i wouldnt leave anything like that!

 

[fiardor]

Moggy, make sure you don't strip the outer sheath of the tails outside of the henley block otherwise you have a single insulated conductor with no mechanical protection outside of an enclosure which would warrant a defect code on an EICR.

Hey Gaz?

Does that include all tails in and out of the meter and main head too? As 95% of the instals i go to obviously dont now comply to the new EICR.
So?
Does that mean i have to make all necessary changes to the tails to make the instal/electrics comply?

Thanks

Fiardor

 

[GaryM]

It's always been the case that you can't have a single insulated conductor outside of an enclosure or containment but you're right, there's many installs out there with that issue and the DNO are more guilty than most, especially with their meter terminations. Maybe that's where the habit has come from?
If you're carrying out an EICR then just report and code them appropriately. No need to make any changes there and then, only if the customer chooses to have the defects rectified though the meter terminations are obviously the DNO's responsibility. You can still note them on your EICR though.

 

[fiardor]

It's always been the case that you can't have a single insulated conductor outside of an enclosure or containment but you're right, there's many installs out there with that issue and the DNO are more guilty than most, especially with their meter terminations. Maybe that's where the habit has come from?
If you're carrying out an EICR then just report and code them appropriately. No need to make any changes there and then, only if the customer chooses to have the defects rectified though the meter terminations are obviously the DNO's responsibility. You can still note them on your EICR though.

Duly noted thanks Gaz

And will from now on adhere to the new EICR. (mostly) LOL

 

[staedtler]

I think tails are undersized for 100 amp suppliers fuse

 

[GaryM]

I think tails are undersized for 100 amp suppliers fuse

If there's a 20A MCB in the 2 way CU then how can the tails be subjected to an overload greater than the rating of the MCB?
In other words, the MCB is your overload protection and the tails are fine.

Think of an 800A busbar chamber with a few 32A switch fuse isolators fed from it. Would you expect conductors rated at 800A to be terminated into the 32A switch fuse?

 

[Top Cat]

If there's a 20A MCB in the 2 way CU then how can the tails be subjected to an overload greater than the rating of the MCB?
In other words, the MCB is your overload protection and the tails are fine.

Think of an 800A busbar chamber with a few 32A switch fuse isolators fed from it. Would you expect conductors rated at 800A to be terminated into the 32A switch fuse?

If the RCD short circuited then the prospective fault current could be thousands of Amps.
Agree to a point about a busbar chamber but the small tails would or should be mechanically protected.

 

[GaryM]

They are mechanically protected - by their outer sheath. No other protection needed, subject to environment.
Many thousands of amps would be great for fast breaking of a protective device that's suitably rated to break the fault current without destroying itself.

 

[xiaoneitie]

yes, it will only have electricity he is using pass through it. the excess will go off to the grid so I'm not right in saying he will be charged for everything he generates. As you say, just no reduction in his bill!

 

[Dan]

Don't mind me while I bump some threads in the solar PV forum. If they're not current or applicable topics, just ignore the threads; they'll drop off the page. If they are, feel free to chip in and chat solar stuff in the solar panels forum.