Rust associated with new solar/inverter system

[joppenheim]

Hi experts

What would cause extremely fast rusting?

We have recently installed a solar/inverter/battery system and in a period of 2 months, seen parts of the system including the breakers rust badly. Yes, there has been a lot of rain, but the system is in a dry garage with no visible water or damp penetration.

Are there specific types of cabling, bolts, screws that should be used that are rust proof?

 

[rh1]

I live 5 minutes from the coast. My system was installed last year. Also in the garage. No issue with rust. How damp is your garage?

 

[Arthur]

One possibility to check: galvanic corrosion. Can be because of the mix of metals you're using, or because your system isn't correctly wired, or both.

 

[Tomtomtom]

galvanic corrosion.

Got to be this. Sprayed everything clean with salt water or something?

 

[DapperDanMan]

or because your system isn't correctly wired

 

[one poster]

What would cause extremely fast rusting?

We have recently installed a solar/inverter/battery system

multiple possible causes already mentioned. If the batteries are lead acid - as opposed to the various lithium options - could also be corrosive gas from the batteries.

 

[RonSwanson]

Hi experts

What would cause extremely fast rusting?

We have recently installed a solar/inverter/battery system and in a period of 2 months, seen parts of the system including the breakers rust badly. Yes, there has been a lot of rain, but the system is in a dry garage with no visible water or damp penetration.

Are there specific types of cabling, bolts, screws that should be used that are rust proof?

Pics?

 

[TheChamp]

View attachment 1478295

But that should be localiser, no?

 

[soulie]

multiple possible causes already mentioned. If the batteries are lead acid - as opposed to the various lithium options - could also be corrosive gas from the batteries.

especially if the batteries are mounted under the inverter ,first big nono never mount lead acid underneath .

 

[soulie]

Hi experts

What would cause extremely fast rusting?

We have recently installed a solar/inverter/battery system and in a period of 2 months, seen parts of the system including the breakers rust badly. Yes, there has been a lot of rain, but the system is in a dry garage with no visible water or damp penetration.

Are there specific types of cabling, bolts, screws that should be used that are rust proof?

do you keep anything like spirits of salts or pool acids in the garage ?