Suuny Boy inverter SB3000 HF-30

[Gavin A]

tbf, I suspect the AC is going down, and the DC is going up in the conduit, so it's a relatively minor infraction of crossing the cables, and the inverter sticker looks like it's fallen off.

wiring diagram could be by the consumer unit, which'd be more sensible than the loft IMO.

Certainly far from the worst install I've seen pictures of

 

[moggy1968]

not sure if no seperation like that that would count as an observation or nonconformity, observation I suspect as you say it is probably just a cross over. Missing labels is an observation, as I know from my inspection today when stupidly I had missed one off!
The diagram has to be at the point of interconnection, which is the main fuse/meter position, which is often not where the DB is. I think thats because the diagram is regarded as for the use of the DNO.

But yes, none of these are major and overall it's a fairly tidy looking job, it's easy to nitpick!

 

[JulianC]

Re: AC & DC separation. Double insulated DC cable and insulated and sheathed flex or T/E is acceptable in the same bit of trunking is it not?

 

[moggy1968]

I actually can't see any refernce to physical seperation in 7671 or DTi Guide. It's one of those things we've always done, but now I'm thinking, do we have to worry about it!!

 

[SolarCity]

I actually can't see any refernce to physical seperation in 7671 or DTi Guide. It's one of those things we've always done, but now I'm thinking, do we have to worry about it!!

Likewise. I worried about induction from the AC cable but perhaps I'm worrying too much.

 

[Worcester]

Physical separation is a tick box on the commissioning report from the 2nd Edition guide, though which clause that comes directly from I have always been unable to trace! - As far as I am aware the only specific mention in the guide is the double ticked item 2.1.2 :

Double insulation (insulation comprising both basic & supplementary insulation, International Electrotechnical Vocabulary IEV 195-06-08), appropriate barriers and separation of parts must be applied to all systems with an open-circuit voltage of >120 Vd.c..

You might even be able to interpret that double insulated DC cables inherently achieve that requirement ....

Though it would be good practice anyway to keep them physically seperate, although the word and is important.