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Utility and industrial customers are making the switch from mineral oil to Envirotemp FR3 fluid. So are customers who already specified a less-flammable fluid such as R-Temp® fluid. FR3 fluid is a soy-based, fire-resistant fluid and is PCB-free. FR3 fluid is the only non-silicone fluid that meets both the National Electric Code (NEC) and National Electric Safety Code (NESC) standards for less-flammable formulation as well as the UL listing requirements for use in electrical transformers (EOVK listing).
Envirotemp FR3 fluid is the only dielectric fluid to meet the strict quality control for optimum transformer cooling characteristics and offer additional advantages such as the highest flash/firepoint, best environmental profile, extended transformer insulation life, increased performance, and lowest cost.
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