绝缘系统中油的可靠性能取决于某些基本油特性，这些基本油特性会影响整个设备的特性。此类油特性是设备设计的组成部分，制造商对此负有最终责任。 发电商负有最终责任的在役设备的可靠运行也取决于保持某些基本油特性。遵守推荐的机油特性将有助于获得所需的设备特性。通常需要对绝缘系统的完整性进行其他测试或验证。

The reliable performance of oil in an insulation system depends upon certain basic oil characteristics which can affect overall apparatus characteristics. Such oil characteristics are integral parts of the equipment design for which the manufacturer has final responsibility. The reliable operation of the equipment in service for which the electric power producer has final responsibility also depends on maintaining certain basic oil characteristics. Adherence to the recommended oil characteristics will assist in obtaining the desired equipment characteristics. Other tests or verification of the integrity of the insulation system are often necessary and required.