Sol Ark bonding

[electrofelon]

See the attached drawing. They are showing the main electrical panel bonded. I am thinking that is a mistake yes?

 

[PWDickerson]

Looks wrong to me. N-G bond should be in the 200A fused disco.

 

[LarryFine]

I agree. It should be bonded in SW1 (the dot may indicate that it is), and not in E (MAIN).

This is basic stuff. Everything past SW1 should be wired like sub-panels are wired.

 

[electrofelon]

My only slight hesitation was it's a hybrid inverter, so I wasn't sure if there was some shenanigans going on like it being considered a separately derived system. But then the neutrals would need to be switched and not common and they are not. Apparently sol ark did this design and drawing.

 

[solarken]

My only slight hesitation was it's a hybrid inverter, so I wasn't sure if there was some shenanigans going on like it being considered a separately derived system. But then the neutrals would need to be switched and not common and they are not. Apparently sol ark did this design and drawing.

Is this a dwg you were given by a designer for a project? It may be that whoever created it went by Sol-Ark schematics in their manuals, which incorrectly show the N-G bond in the wrong location, consistently. Shame on Sol-Ark, they should fix. Also, there is no bypass switch in your dwg, so if the inverter fails in certain scenarios, the site will have no power until someone comes onsite and manually moves wires to bypass it before repair.

 

[electrofelon]

Is this a dwg you were given by a designer for a project? It may be that whoever created it went by Sol-Ark schematics in their manuals, which incorrectly show the N-G bond in the wrong location, consistently. Shame on Sol-Ark, they should fix. Also, there is no bypass switch in your dwg, so if the inverter fails in certain scenarios, the site will have no power until someone comes onsite and manually moves wires to bypass it before repair.

I was told that sol ark did the design and drawing.

So this product has no integral bypass capability? Is it common to provide an external bypass?

 

[PWDickerson]

We usually include a separate bypass switch when we install these.

 

[solarken]

I was told that sol ark did the design and drawing.

So this product has no integral bypass capability? Is it common to provide an external bypass?

Correct, the inverter does not have any integral mechanical bypass. If there is a serious failure, then anything off the load terminals will be without power. I am installing a similar Sol-Ark system now, and I designed in a bypass.