IEC 62548-1:20 23规定了光伏(PV)阵列的设计要求，包括直流阵列布线、电气保护装置、开关和接地规定。范围包括光伏阵列和最终功率转换设备（PCE）的所有部分，但不包括储能装置、负载或为负载供电的交流或直流配电网。本文件的目的是解决由光伏系统的特殊特性引起的设计安全要求。本文件还包括光伏阵列直接与直流级电池连接时的额外保护要求。 这第一版取消并取代了2016年发布的IEC 62548。与上一版相比，此版本包括以下重大技术变更:a)包括直流至直流调节装置在内的系统的修订规定。 b)安装结构要求的修订。 c)修订后的电缆要求。 d)修订关于安全问题的第6条，其中包括防止电击的规定，包括阵列绝缘监测和接地故障检测。 e)关于隔离装置的7.2.7和7.3的修订。 f)使用双面模块和以非最佳方向安装的模块的规定。 g)新的附件F包含:双面和非最佳取向系统的KI因子计算；防PID设备和电弧闪光。

IEC 62548-1:2023 sets out design requirements for photovoltaic (PV) arrays including DC array wiring, electrical protection devices, switching and earthing provisions. The scope includes all parts of the PV array and final power conversion equipment (PCE), but not including energy storage devices, loads or AC or DC distribution network supplying loads. The object of this document is to address the design safety requirements arising from the particular characteristics of photovoltaic systems. This document also includes extra protection requirements of PV arrays when they are directly connected with batteries at the DC level.
This first edition cancels and replaces IEC 62548 published in 2016. This edition includes the following significant technical changes with respect to the previous edition:
a) Revised provisions for systems including DC to DC conditioning units.
b) Revision of mounting structure requirements.
c) Revised cable requirements.
d) Revision of Clause 6 on safety issues which includes provisions for protection against electric shock including array insulation monitoring and earth fault detection.
e) Revision of 7.2.7 and 7.3 with respect to isolation means.
f) Provisions for use of bifacial modules and modules mounted in non-optimal orientations.
g) New Annex F containing: KI factor calculations for bifacial and non-optimally oriented systems; anti-PID equipment and arc flash.