Penetrating firewall between garage and dwelling

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Hi All,

I was wondering if anyone has guidance on the following...

Currently have Ethernet over Power(network connection) and Power over Ethernet(powers the camera) security camera that is connected in the small attic space above the garage. The dual electrical outlet allows me to power the camera with POE power injector and network connectivity with the Ethernet over Power converter.

This sufficed for a single camera setup. I am looking to add at least three more security cameras. The new cameras have heating and cooling built in and require 24VAC power input.

I have a networking distribution panel installed in the upstairs utility room inside the dwelling(washer/dryer). The attic space of the attached garage is adjacent to this utility room.

I would like to penetrate the firewall between the garage attic space and this utility room. The penetration would be twofold, one for low voltage power cables and the other for cat5/6 Ethernet runs that may in the future be carrying POE as well.

I would use the existing networking distribution panel to connect the Ethernet cables to my existing Ethernet switch and would like to install a new 24VAC power panel on a perpendicular wall in the utility room (6 -8 transformers).

My question is...I have read IRC in regards to attached garages and penetration of the fire separation, but not sure what the recommended method would be. I.e. Could just drill holes and feed the cables through and then use fire rated putty/sealant to seal around? Or should I use metal conduit and seal with fire resistant putty?

Also, are you allowed to install a low voltage panel on the inside of the utility room since it's adjacent to the attached garage?

Appreciate any guidance. I live in North Carolina. New home constructed in 2003.

 

[jkeyser14]

Hi All,

I was wondering if anyone has guidance on the following...

Currently have Ethernet over Power(network connection) and Power over Ethernet(powers the camera) security camera that is connected in the small attic space above the garage. The dual electrical outlet allows me to power the camera with POE power injector and network connectivity with the Ethernet over Power converter.

This sufficed for a single camera setup. I am looking to add at least three more security cameras. The new cameras have heating and cooling built in and require 24VAC power input.

I have a networking distribution panel installed in the upstairs utility room inside the dwelling(washer/dryer). The attic space of the attached garage is adjacent to this utility room.

I would like to penetrate the firewall between the garage attic space and this utility room. The penetration would be twofold, one for low voltage power cables and the other for cat5/6 Ethernet runs that may in the future be carrying POE as well.

I would use the existing networking distribution panel to connect the Ethernet cables to my existing Ethernet switch and would like to install a new 24VAC power panel on a perpendicular wall in the utility room (6 -8 transformers).

My question is...I have read IRC in regards to attached garages and penetration of the fire separation, but not sure what the recommended method would be. I.e. Could just drill holes and feed the cables through and then use fire rated putty/sealant to seal around? Or should I use metal conduit and seal with fire resistant putty?

Also, are you allowed to install a low voltage panel on the inside of the utility room since it's adjacent to the attached garage?

Appreciate any guidance. I live in North Carolina. New home constructed in 2003.

If you are just going through drywall, run the wire/cables through and use fire caulk. If you are going through a concrete or block wall, I would personally run the cables through pvc conduit to help protect them from abrasion. You would still need to seal around the conduit and around the wires with fire caulk.

AC wiring and ethernet cables should be run in separate conduit and it's a common practice to separate your data lines from the AC lines by 12-18 inches to help avoid noise on the lines.