Last weeks pv job

[jackhammerJIM]

A nice pv job from a couple of weeks ago .

Tallest roof i have ever worked on at 42 metres which made the dc run difficult .






The ac side was easy in comparison with small short runs of swa . Enjoyed installing out in the sunshine which didn't

last long as the week after it ****ed down with rain and we were in a field doing a ground mount :cry_smile:

 

[jason121]

Are the inverters 15 KW EE project ones.

 

[Megavolt]

Wow a proper job there very nice to see

 

[jackhammerJIM]

they are 20 kw sma without the display

 

[jason121]

I have 12off 15kw SMA to install, they have come with built in DC Isolator. I didn't think SMA did this

 

[jackhammerJIM]

Its a 250 kw system with 10 x 20kw sma inverters 3 phase no display version don't have the model number to hand . can find out if you require

 

[Richard]

Looks very neat and tidy with you. Not critising atall, however personally i'm not sure about mounting trunking externally?

 

[davesparks]

What is your concern about mounting trunking externally?

 

[Guest77]

The tray looks rough but otherwise nice job

 

[davesparks]

I'm sure there is a good reason but why install a bussbar and 3x 4way DB when 1x 12way DB would do the same job?

I guess it could be that 10 of your PV units would overload a 125A DB, but then a 250A DB or a panel board would do wouldn't it?

 

[Gavin A]

I'm sure there is a good reason but why install a bussbar and 3x 4way DB when 1x 12way DB would do the same job?

I guess it could be that 10 of your PV units would overload a 125A DB, but then a 250A DB or a panel board would do wouldn't it?

10 x 20kW inverters = 200kW, or around 280-290A per phase.

probably more cost effective to go the buzz bar plus 3 x 100A boards than going for 1 300A board.


In other news, I can't get my head around how that can possibly be 42m high, no chance that cherry picker would get anything close to 42m, and I can only count 5-6 storeys on any of the pictures. 42 feet high sees a bit more likely.

It looks to be around the same height we were working on last week which was 14m to the gutter, 18m to the ridge.

 

[jackhammerJIM]

Its 42 metres gavin .

 

[malcolmsanford]

Have to admit I would have taken the tray vertically down into the pit but all in all not a bad litlte job.