IS 7118-1973

标准号：IS 7118-1973
发布日期：1974/5/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard covers recommendations for standard direction of movement for control devices operating electrical apparatus and is applicable to manually operated devices, such as, handwheels, handles, knobs, grips, levers, push-buttons, rods and cord, which control the operation of electrical apparatus, such as regulating resistors, controllers and switches. The electrical apparatus so operated may comprise a complete functional unit, or may be a component part of a larger assembly of electrical or nonelectrical equipment, for example, motor, pump and fluidvane. This standard also applies to servomotors and the steering of certain types of electric trucks.1.2 Additional requirements may be necessary for controls other than manual controls.