IEC 60364-5-52:2009涉及布线系统的选择和安装。第三版取消并取代了2001年出版的第二版，构成了技术修订。 与上一版相比，主要变化如下: -子条款521.4引入了关于母线线槽系统和powertrack系统的微小变化。 -子条款523.6引入了关于存在谐波电流的电缆尺寸的微小变化。 -引入了关于带金属护套的单芯电缆的新子条款523.9。 -第525条引入了消费者装置原点与设备之间允许的电压降最大值的变化，该变化不应大于相关附件中给出的值。 -第526条引入了对电气连接的微小更改，包括检查连接的附加例外和附加注释。-第528条引入了关于地下电力和电信电缆邻近性的附加要求。 -第529条引入了与可维护性（包括清洁）相关的布线系统的选择和安装的微小变化。 2011年2月更正的内容已纳入本副本。

IEC 60364-5-52:2009 deals with the selection and erection of wiring systems. This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are as follows:
- Subclause 521.4 introduces minor changes with regard to busbar trunking systems and powertrack systems.
- Subclause 523.6 introduces minor changes with regard to the sizing of cables where harmonic currents are present.
- A new sublause 523.9 concerning single-core cables with a metallic covering has been introduced.
- Clause 525 introduces changes in the maximum value of voltage drop permitted between the origin of the consumer's installation and the equipment which should not be greater than that given in the relevant annex.
- Clause 526 introduces minor changes to electrical connections including additional exceptions for inspection of connections and additional notes.
- Clause 528 introduces additional requirements with regard to proximity of underground power and telecommunication cables.
- Clause 529 introduces minor changes to selection and erection of wiring systems in relation to maintainability, including cleaning. The contents of the corrigendum of February 2011 have been included in this copy.