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Understanding IEC 60364 and HD 60364
National wiring standards in Europe are based on CENELEC standard HD 60364, which is, in turn based on IEC 60364.
In this article, we'll look at what these two standards are, the differences between them, and the specifics of what they cover. We’ll also introduce a resource you can use to better and more easily comply with their requirements.
IEC 60364 is the International Electrotechnical Commission (IEC) standard for Electrical Installations for Buildings. It is an attempt to harmonize a range of national wiring standards which preceded it. The rules are intended to provide for the proper functioning of electrical installations and to provide for the safety of persons, livestock, and property against dangers and damage which may arise in the reasonable use of those installations.
HD 60364 is a derivative of IEC 60364 published in the European Union by the European Committee for Electrotechnical Standardization (CENELEC).
IEC 60364 and HD 60364 not only specify electrical wiring rules for buildings. They also specify the standards electrical products and equipment must comply with if they are to be selected and installed in compliance with the installation rules.
HD 60364 is based on IEC 60364 and mimics its structure, but it goes a step farther. HD 60364 includes specific requirements for CENELEC member countries. Those countries are required to implement HD 60364 in their national wiring rules, but may include additional national requirements of their own.
In contrast, IEC 60364 is purely advisory. Implementation of IEC 60364 is entirely at the discretion of each country’s national committee.
Both of these sprawling, detailed standards are divided into eight parts:
Part 1 details the scope of the wiring rules.
It covers:
Part 3 provides an assessment of general characteristics.
It covers:
Part 4 establishes the ground rules and requirements for the safety of electrical installations.
Part 4 covers:
Part 5 details the selection and erection of electrical equipment to meet the measures set out in Part 4.
It covers:
Part 6 establishes requirements for verification of an electrical installation.
The intent of this verification is to determine, as far as reasonably practicable, whether the requirements of other parts of IEC 60364 have been met. Part 6 also sets out requirements for verification reporting.
Part 7 details a range of special locations where specific and sometimes additional requirements are needed.
Part 7 modifies or adds to the requirements of the preceding parts of IEC 60364 and thus cannot be used in isolation. It covers locations such as:
Part 8 is divided into two sections
Section 1: Energy Efficiency, provides requirements, measures and recommendations for achieving optimal performance and functionality for the lowest energy consumption.
Section 2: Prosumer’s Low-voltage Electrical Installations sets out additional requirements, measures and recommendations for local production and/or storage of energy for delivery to either in-house electrical networks or the public power grid. “Prosumer” is a portmanteau of the words producer and consumer meaning, “one who both produces and consumes.”
IEC/HD 60364 is the essential standard for electrical installations. It contains all the relevant requirements an electrical installer needs to know.
Electrical installers and consultants, however, need more than just the requirements. You also need information on state-of-the-art equipment, techniques and best practices that will help you comply with those standards as safely and efficiently as possible.
That's why Eaton has created a Consulting Application Guide aimed at compliance with IEC standards for low voltage networks. Drawn up by a group of experienced experts to align with IEC 60364 and other applicable standards, this guide is designed to assist electrical consultants, electricians or power system design engineers in the layout and specification of electrical wiring and low-voltage network equipment. And it’s yours free for the asking.
For more detailed technical information that can assist you with the layout and specification of your next power system design project, be sure to download Eaton’s new Consulting Application Guide.
