本标准用于制定工程建议，将能源管理纳入设施的电气设计、运行和维护中。需要一种最新的方法来选择合适的设备并评估其价值。此外，还需要提及计量、照明、供电和发电设备的最新技术。

This standard is needed to set engineering recommendations for including energy management in the electrical design, operation and maintenance of a facility. An up-to-date methodology to chose the proper equipment and evaluate its worth is needed. In addition, the latest technologies of metering, lighting, powering and generating equipment need to be mentioned.