IEC PAS 63108:2017规定了主要DC配电系统和互连装置的要求。 本PAS的要求确立了以下方面的一般原则: -在不降低单元和人员安全的情况下，能够减少环境足迹的操作， -现有和新的发电机组、用于电力的新直流分配概念、能量存储和总功率平衡的高级控制，包括半导体转换器（AC到DC、DC到DC和DC到AC功率转换器）和动态负载控制器，以及 -相关系统研究和计算证明了必要的选择性、分离方法和设备所需的保护理念。 该PAS还提供了整合不同性质能源的指南以及确定此类设施位置的合适方法。

IEC PAS 63108:2017 specifies the requirements of primary DC distribution systems and interconnected installations.
The requirements of this PAS establish general principles for
- operations, without degrading unit and human safety, capable of a reduced environmental footprint,
- existing and new power generating units, new DC distribution concepts for electrical power, energy storage and advanced control of a total power balance, including semiconductor converters (AC to DC, DC to DC and DC to AC power converters) and dynamic load controllers, and
- relevant system studies and calculations demonstrating a protection philosophy as needed for necessary selectivity, segregation methods and equipment.
This PAS also gives guidelines for integration of energy sources of different nature and suitable ways to identify locations of such installations.