This standard prescribes design, application, and test requirements for electrical and electronic control apparatus on rail vehicles. This standard is intended to provide a set of uniform design, application, and test requirements for electrical and electronic control apparatus on rail vehicles. These requirements are the minimum necessary to ensure suitability for use in a rail vehicle environment. Use of this should lead to enhanced levels of reliability, and lower acquisition and maintenance costs. Revision Standard - Superseded. Revision of IEEE Std 16-1955. This standard is intended to provide a set of uniform design, application, and test requirements for electrical and electronic control apparatus on rail vehicles.