Minimum distance between Utility Transformer and CO2 Tank?

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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?
 
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
 
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.
 
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......
 
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