Is this how it's done ?

[Earthstore]

Not all inverters need RCD protection, however, there should be an isolation switch at an accessible point, the loft is not an accessible point.

 

[whinmoor]

I can't believe they haven't used two AC isolators - one near the inverter and one at the house.

Why are there cables in the loft or is that a different job entirely?

Is the long cable buried? How deep?

 

[Pat Tester]

The loft cables are nothing to do with the Solar PV.

Yes the supply cable is buried but according to the client only about 150mm deep !

I will keep you informed re any further info.

Thanks again.

 

[whinmoor]

I can't believe 150mm is deep enough! Is it running down the garden? It should be at least 600mm with a yellow "cable below" warning tape halfway down.

 

[yellowvanman]

I can't believe 150mm is deep enough! Is it running down the garden? It should be at least 600mm with a yellow "cable below" warning tape halfway down.

Carefull - before you start specifying minimum depths.

BGB says 'should be at a a sufficient depth to avoid being damaged by any reasonably foreseeable disturbance of the ground' - the only place where the regs specifies minimum depths is agricultural, camp sites and marinas.

If buried at a depth of 150mm then whoever did it needs to have a good explanation to say why 150mm is sufficient.

 

[Eco Chap]

I can't believe 150mm is deep enough! Is it running down the garden? It should be at least 600mm with a yellow "cable below" warning tape halfway down.

The 600mm is only a recommendation. It's up to the designer to assess the depth of the buried cable. If its not considered to be on agricultural land I.e. a crop field or passing under a vegetable patch ect then bury it as the designer chooses. Mind you can never tell what tomorrow brings so 600mm is always a good recommendation

 

[Eco Chap]

Carefull - before you start specifying minimum depths.

BGB says 'should be at a a sufficient depth to avoid being damaged by any reasonably foreseeable disturbance of the ground' - the only place where the regs specifies minimum depths is agricultural, camp sites and marinas.

If buried at a depth of 150mm then whoever did it needs to have a good explanation to say why 150mm is sufficient.

Beaten to it

 

[jason121]

Because digging is hard work