Isolated Power Panels

[PaulOP]

Good Morning,

Just looking for someone to double check me on this, and make sure I didn't miss anything. I am new to Isolated Power Panels, and would like to have my bases covered.

This is for an operating room, the previous electrician wired the Isolated Power Panels in HCF Rated MC. It has since failed their test, and the surgery center is looking to rip it all out and get it done correctly.

Circuits

PG LifeLink standard Isolated Power Panels​

Standard Isolated Power Panel Specifications | PG Lifelink

www.pglifelink.com

• Looks like I will need XHHW-2 Stranded Copper wire, in Brown, Orange, and Green.

• A total run of all circuits of 450Ft or less per Panel.

• No more then 6 wires in a 3/4" conduit (Does this mean two circuits? or Three not counting grounds? )

There are 10 circuits per panel, so five conduits.

Conduit ​

It looks like operating rooms are considered "wet" locations. NFPA 6.3.2.3.4

Would I be able to use EMT with raintight fittings here? NEC 358.10 Uses permitted says yes I can use it in a wet location.
Or would I have to use Rigid because of a Article 517 code that I am not aware of?

The walls of this operating room are finished, we would run all the conduit exposed, and surface mounting it on the existing walls.
Unless there is a code reason not too? (With the exception that it might not look as clean)

Devices ​

The devices will be hospital grade duplex receptacles,

Because we are surface mounting the conduit, and this is a wet location.

I would assume I would need weather proof Boxes? weather proof covers? Or am I overthinking this?






Please let me know if there is anything else that I missed!

 

[roger]

Good Morning,

Just looking for someone to double check me on this, and make sure I didn't miss anything. I am new to Isolated Power Panels, and would like to have my bases covered.

This is for an operating room, the previous electrician wired the Isolated Power Panels in HCF Rated MC. It has since failed their test, and the surgery center is looking to rip it all out and get it done correctly.

Circuits

PG LifeLink standard Isolated Power Panels​

Standard Isolated Power Panel Specifications | PG Lifelink

www.pglifelink.com

• Looks like I will need XHHW-2 Stranded Copper wire, in Brown, Orange, and Green.

Correct, other insulation types will not have the dielectric strength. Take note that the conductors will have to have a stripe on them.

• A total run of all circuits of 450Ft or less per Panel.

Correct, leakage is accumulative and the more conductor total means more leakage.

• No more then 6 wires in a 3/4" conduit (Does this mean two circuits? or Three not counting grounds? )

There are 10 circuits per panel, so five conduits.

I always tried to keep it to 5 conductors per conduit run including the egc

Conduit ​

It looks like operating rooms are considered "wet" locations. NFPA 6.3.2.3.4

Would I be able to use EMT with raintight fittings here? NEC 358.10 Uses permitted says yes I can use it in a wet location.
Or would I have to use Rigid because of a Article 517 code that I am not aware of?

EMT is fine with regular fittings, we always used steel compression.

The walls of this operating room are finished, we would run all the conduit exposed, and surface mounting it on the existing walls.
Unless there is a code reason not too? (With the exception that it might not look as clean)

It needs to be inside the walls, regardless of codes the infection control people and state agency over healthcare facilities would have fits.

Devices ​

The devices will be hospital grade duplex receptacles,

Because we are surface mounting the conduit, and this is a wet location.

I would assume I would need weather proof Boxes? weather proof covers? Or am I overthinking this?

No, the conduit will be inside the walls and regular plates with mud rings. Pull up pictures of OR's, Triage rooms, other types of procedure rooms, unless it's a picture from a third world country you will not see exposed electrical conduit

Please let me know if there is anything else that I missed

Be sure to include a commissioning company to come test the rooms, this will take test sets that most EC's do not have. We had the equipment and did test existing rooms but on new installations to avoid conflicts of interest we would use SQ D's field testing and if you use their panels they can incorporate it in their pricing however they will commission others equipment.

 

[PaulOP]

Correct, other insulation types will not have the dielectric strength. Take note that the conductors will have to have a stripe on them.

Correct, leakage is accumulative and the more conductor total means more leakage.

I always tried to keep it to 5 conductors per conduit run including the egc

EMT is fine with regular fittings, we always used steel compression.

It needs to be inside the walls, regardless of codes the infection control people and state agency over healthcare facilities would have fits.

No, the conduit will be inside the walls and regular plates with mud rings. Pull up pictures of OR's, Triage rooms, other types of procedure rooms, unless it's a picture from a third world country you will not see exposed electrical conduit

Be sure to include a commissioning company to come test the rooms, this will take test sets that most EC's do not have. We use to use SQ D and if you use their panels they can incorporate in their pricing however they will commission others equipment.

It needs to be inside the walls, regardless of codes the infection control people and state agency over healthcare facilities would have fits.

I would prefer it in the walls as well, they were the ones that did not want the walls destroyed, I will give them push back and require that it goes in the walls.

Be sure to include a commissioning company to come test the rooms Good Call out! I will absolutely include that!