本规范涵盖了多匝、导螺杆驱动和单匝线绕可变电阻器的一般要求，当由致动器定位时，可变电阻器的接触轴承均匀分布在整个电阻元件的整个表面上，线性缠绕。这些电阻器能够在85摄氏度的最高环境温度下满负荷运行（在使用最大电阻的情况下），并且能够在150摄氏度的最大温度下适当减额时连续运行（见图2）。这些电阻器的电阻公差为å±5%（见3.1）。

This specification covers the general requirements for multiturn, lead-screw actuated and single turn wirewound, variable resistors with a contact bearing uniformly over the entire surface of the entire resistive element, wound linearly, when positioned by an actuator. These resistors are capable of full load operation (where maximum resistance is engaged) at maximum ambient temperature of 85 Degrees C, and are capable for continuous operation when properly derated, at a maximum temperature of 150 Degrees C (see figure 2). These resistors have a resistance tolerance of å±5 percent (see 3.1).