EPS应急电源系统(Emergency Power Supply),是根据国家标准、IEC标准和建筑电气设计规范、消防设计规范的要求,出现的一种新型的采用先进的电源逆变技术的消防应急电源。石油化工企业作为危险化学品生产制造企业,对照明系统、消防系统的可靠性、稳定性有着更高的要求。在事故状态下,当发生装置全部或部分停电后,EPS应确保照明及消防负载的供电。本文将结合两个实际案例,通过两种不同配电设计方案的对比分析,探讨在石油化工企业中EPS独立承担照明负荷的经济性和可行性。 EPS Emergency Power Supply is a new type of fire emergency power supply adopting advanced power inverter technology according to the requirements of national standards, IEC standards, architectural electrical design codes and fire protection design codes. As a manufacturer of dangerous chemicals, petrochemical enterprises have higher requirements on the reliability and stability of lighting systems and fire protection systems. In the event of an accident, EPS shall ensure the supply of lighting and fire loads when all or part of the power outage has occurred. This article will combine two actual cases, through the comparison of two different power distribution design schemes to explore the economy and feasibility of EPS independently assuming lighting load in petrochemical enterprises.