Protection for water entry in fittings and LB's

[mtanio24]

Is it recommended to put a duck seal in the LB with conductors that penetrated
the wall of the house or concrete foundation to access the panel. Is this agains the code?
is it gonna creat heat? And is it against the code for conduit fill?

And by the way the conduit that goes inside the house came from the disconnect
not from the roof..

 

[al hildenbrand]

Using duct seal in an entrance fitting is standard operating procedure for a raceway that crosses a temperature difference. Be sure to have the side the condensate will form on designed to drain, or else add weep holes.

Up here, dews and damps will flow like anything through an improperly sealed raceway.

Same problem occurs with wiring walkin coolers and freezers.

 

[mtanio24]

Using duct seal in an entrance fitting is standard operating procedure for a raceway that crosses a temperature difference. Be sure to have the side the condensate will form on designed to drain, or else add weep holes.

Up here, dews and damps will flow like anything through an improperly sealed raceway.

Same problem occurs with wiring walkin coolers and freezers.

Hildenbrand, thanks. Where you from? Are you working with solar as well?

 

[al hildenbrand]

Get your Code book out and read 300.7

And

Welcome to the Forum.

 

[mtanio24]

Get your Code book out and read 300.7

And

Welcome to the Forum.

is there any code where to penetrate to the solar inverter?
Coz i just installed a 10k inverter outside and i penetrate to back of the inverter
where the TB are instead of making a 10" offset of pipe and come
in to the bottom of inverter. Ang one of the senior electrician
told me that i had to fix my pipping and bring it to the bottom of the inverter.
And I'm the first electrician who piped that way when it comes to 10k+ inverter..
and im new in the company but im doing electrical work for 6yrs

 

[Carultch]

is there any code where to penetrate to the solar inverter?
Coz i just installed a 10k inverter outside and i penetrate to back of the inverter
where the TB are instead of making a 10" offset of pipe and come
in to the bottom of inverter. Ang one of the senior electrician
told me that i had to fix my pipping and bring it to the bottom of the inverter.
And I'm the first electrician who piped that way when it comes to 10k+ inverter..
and im new in the company but im doing electrical work for 6yrs

Most inverters have manufacturer-specified locations where you can and cannot have conduit enter. If you weren't permitted to enter a location with conduit, there wouldn't (or at least, shouldn't) be a factory knockout in that position.

In any case, conduit bodies have to have their access cover accessible after the installation is complete. So, you cannot cover them with other equipment, even if you do install the wire beforehand.

 

[jaggedben]

is there any code where to penetrate to the solar inverter?
Coz i just installed a 10k inverter outside and i penetrate to back of the inverter
where the TB are instead of making a 10" offset of pipe and come
in to the bottom of inverter. Ang one of the senior electrician
told me that i had to fix my pipping and bring it to the bottom of the inverter.
And I'm the first electrician who piped that way when it comes to 10k+ inverter..
and im new in the company but im doing electrical work for 6yrs

There's nothing wrong with doing it that way.