Transformer Insulating Oil Type II
This is a highly refined mineral oil specifically formulated for use in electrical transformers, containing over 70% petroleum oils with less than 50% of any single hydrocarbon. It meets the criteria for light oils under 2710.12 as 90% or more distills at 210°C, and is classified under 2710.12.4545 due to its function as an insulating or transformer oil. The oil provides dielectric insulation and cooling in high-voltage transformers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically for electrical insulation
Motor oil base stocks fall under this if lacking transformer-specific dielectric properties, as they are not insulating oils.
If containing additives exceeding 30% by weight
Lubricating preparations with <70% petroleum oils shift to Chapter 34 as they no longer have petroleum as the basic constituent.
If containing over 50% of a single hydrocarbon
Mixtures exceeding 50% single hydrocarbon are classified separately within the same light oils group.
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Import Tips & Compliance
• Obtain Certificates of Analysis (COA) confirming volatile matter, distillation specs per ISO 3405, and hydrocarbon composition to verify classification; ensure MSDS includes flash point and purity for DOT compliance; common pitfall is misclassifying as general lubricant oils under 2710.19 if not proven insulating
Related Products under HTS 2710.12.45.45
Electrical Insulating Oil for Power Transformers
A naphthenic-based insulating oil designed for power distribution transformers, consisting of petroleum distillates with no single hydrocarbon over 50% by weight. Classified in 2710.12.4545 as a light oil preparation (>90% distill at 210°C) serving as transformer oil for insulation and heat dissipation. It complies with IEEE C57.106 standards for electrical performance.
Synthetic Blend Transformer Oil
A blend of highly refined petroleum oils (>70% content) with synthetic additives, used in high-performance transformers where no single hydrocarbon exceeds 50%. It qualifies as light oils under 2710.12 (distillation >90% at 210°C) and specifically as insulating oil in 2710.12.4545. Provides superior oxidation stability for long-term transformer operation.
High-Voltage Switchgear Insulating Oil
Refined mineral oil for insulating bushings and switchgear in high-voltage applications, with petroleum oils >70% and hydrocarbon mixtures <50% single compound. As a light oil (90%+ distill at 210°C), it fits 2710.12.4545 for insulating/transformer oils. Ensures arc quenching and dielectric strength in electrical substations.
Circuit Breaker Insulating Oil
Specialty petroleum oil for oil-immersed circuit breakers, featuring >70% petroleum content and balanced hydrocarbon mix (<50% any single). Meets light oil distillation test for 2710.12 and insulating function for .4545. Critical for interrupting high currents safely in electrical grids.
Naphthenic Transformer Fluid
Low-sulfur naphthenic insulating fluid for distribution transformers, >70% petroleum oils with no dominant hydrocarbon (>50%). Light oil per ISO 3405, classified 2710.12.4545 as transformer oil. Offers excellent low-temperature performance and gas absorption properties.
Askarel-Replacement Insulating Oil
Non-PCB mineral oil replacing old askarels in transformers, with >70% petroleum and <50% single hydrocarbon compliance. Qualifies as insulating light oil under 2710.12.4545 due to distillation profile. Used for retrofitting legacy electrical equipment.