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Auxiliary Transformer Seals

Additional Information

(Contact us to receive information in hardcopy form.)


Auxiliary transformers contain oil.  During an abnormal event, oil can flow down conduits and enter the substation basement.

SRE Solution:

Auxiliary Transformer Seals are installed with a patented process using foam and caulk materials preventing oil leakage into cable space and by nearby equipment.  The conduit firestop also provides a seal against damaging contaminates such as dirt, yard stone, and water.  If oil filled equipment is within 10 feet of a building, be safe and prevent leakage!


The below picture depicts the aftermath of an auxiliary transformer fire.







SRE Advantages:

  • Ability to adjust cables and easily reinstall the designed fire protection system
  • Before and after matrix aid in proper system selection.  Also provides visual to compare completed work insuring correct installation. 
  • Design drawings are assembled allowing each step of the process is able to be understood by a novice installer.  Following each step in sequence insures a fire protection installation that will function in a fire/smoke event.
  • Ability for corrective maintenance to be performed 10, 20, even 30 years from now
  • System designs are installed by SRE’s trained and certified installers.
  • Ability to install while the unit is live.
  • Materials can withstand UV light.

Material(s) Description:
CP620 Fire Foam
CP601S Silicone Caulk



                                                  Substation Reliability Experts, Inc. 
   2175 Dunavant Street Charlotte, NC 28203      Office: (704) 377-2950      Fax: (704) 377-2950