Minimum distance between Utility Transformer and CO2 Tank?

[ElectricNewEngland]

I am designing a 2,500KVA utility transformer that is 15 feet away from an existing CO2 Tank.
The local utility tells me "transformer(s) proximity in relation to CO2 tanks must comply with Class 1 "Hazardous Locations" as defined by the NEC and the Electrical Code for you municipality".
Is there a code section that defines the distance between a CO2 tank and a transformer?

 

[Gregg Harris]

I am designing a 2,500KVA utility transformer that is 15 feet away from an existing CO2 Tank.
The local utility tells me "transformer(s) proximity in relation to CO2 tanks must comply with Class 1 "Hazardous Locations" as defined by the NEC and the Electrical Code for you municipality".
Is there a code section that defines the distance between a CO2 tank and a transformer?

Carbon Dioxide is not a classified gas pertaining to a hazardous location.

It is non flammable and only hazardous in a confined area as an asphyxiation.

Ask your POCO for more details

 

[ElectricNewEngland]

Carbon Dioxide is not a classified gas pertaining to a hazardous location.

It is non flammable and only hazardous in a confined area as an asphyxiation.

Ask your POCO for more details

Thanks for your response.
I should also mention that all of this is outside the building, so there is no confined area.

 

[eprice]

Carbon Dioxide is not a classified gas pertaining to a hazardous location.

It is non flammable and only hazardous in a confined area as an asphyxiation.

Ask your POCO for more details

In fact, Carbon Dioxide is used in some fire extinguishers particularly suited for electrical fires.

 

[qcroanoke]

It is non flammable and only hazardous in a confined area as an asphyxiation.

Agreed, You don't want to be in an area protected by C02 when it is released.
I believe that fire codes require a time delay on release when a pull station is activated for that reason.
Gives you time to get out......