IEC 63046:2020提供了整个电力系统的要求和建议。尤其包括可中断和不间断电力系统，包括为仪控系统供电的系统；本文件与IEC 61513一致。与IEC 61513一样，本文件也强调了根据电厂安全目标得出的完整和准确要求的必要性。这些要求是生成整个电力系统架构和电力供应子系统综合要求的先决条件。本文件确立了在核电站中实施适当电力系统的高水平规范和要求，该电力系统支持对安全至关重要的反应堆系统。它还可以产生电能，为输电网提供有功和无功功率以及机电惯性。

IEC 63046:2020 provides requirements and recommendations for the overall Electrical Power System. In particular, it covers interruptible and uninterruptible Electrical Power Systems including the systems supplying the I&C systems; This document is consistent and coherent with IEC 61513. Like IEC 61513, this document also highlights the need for complete and precise requirements, derived from the plant safety goals. Those requirements are prerequisites for generating the comprehensive requirements for the overall Electrical Power System architecture, and for the electrical power supply sub-systems. This document establishes the high level specification and requirement to implement a suitable Electrical Power System in a NPP that supports reactor systems important to safety. It also enables electrical energy production providing the transmission grid with active and reactive power and electro-mechanical inertia.