Duct bank??

[Alwayslearningelec]

So to me this looks like a pre fabricated duct bank. My question is strut frames and not usually used for duct banks. Is it because they are fabricating and need to keep them together is why they're using them?

 

[don_resqcapt19]

It is common to specify some type of framing and supports for duct banks to keep the raceways in their correct locations. Duct spacing impacts duct bank ampacity calculations.

 

[Alwayslearningelec]

I see that pic was too big to attached. I thought underground duct banks only really utilized spacers . You need strut?

 

[don_resqcapt19]

I see that pic was too big to attached. I thought underground duct banks only really utilized spacers . You need strut?

What method used is up to the designer, not the installer.