ANS 59.51-1997（R2020）规定了柴油发电机燃油系统的功能、性能和初始设计要求，柴油发电机为轻水反应堆核电厂提供安全相关的应急现场电源。本标准涉及与燃油系统相关的机械设备，但安装在发动机上的部件除外。这些直接安装在发动机结构本身上的部件不包括在内，但用于定义接口要求的部件除外。它还包括仪表和控制功能要求。本标准不包括用于燃油系统运行的电机、电机控制中心、开关设备、电缆和其他电气设备，但定义接口要求的除外。

ANS 59.51-1997 (R2020) provides functional, performance, and initial design requirements for the fuel oil system for diesel generators that provide safety-related emergency on-site power for light water reactor nuclear power plants. This standard addresses the mechanical equipment associated with the fuel oil system, with the exception of the engine-mounted components. These components, which are mounted directly to the engine structure itself, are excluded except to define interface requirements. It also includes the instrumentation and control functional requirements. The standard excludes motors, motor control centers, switchgear, cables, and other electrical equipment used in the operation of the fuel oil system, except to define interface requirements.