Msz Hd 60364
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What is Msz Hd 60364 and why is it important?
Msz Hd 60364 is a series of Hungarian standards that specify the requirements for the design, installation, inspection and testing of low-voltage electrical installations. Low-voltage electrical installations are those that operate at a nominal voltage not exceeding 1000 V AC or 1500 V DC. Msz Hd 60364 is based on the international standard IEC 60364, but it also includes some national deviations and additions to suit the Hungarian context.
Msz Hd 60364 is important because it ensures the safety, reliability and efficiency of electrical installations in buildings, both residential and commercial. It covers various aspects of electrical installations, such as protection against electric shock, overcurrent, overvoltage, fire and lightning, selection and installation of wiring systems, switchgear and controlgear, earthing and bonding, renewable energy sources, special locations and equipment, etc. Msz Hd 60364 also provides guidance on how to perform inspections and tests to verify the compliance of electrical installations with the standards.
How to use Msz Hd 60364?
Msz Hd 60364 consists of several parts, each dealing with a specific topic or type of electrical installation. The parts are numbered according to the IEC 60364 series, with some additional parts that are specific to Hungary. For example, Msz Hd 60364-5-537 is the Hungarian version of IEC 60364-5-53, which deals with the selection and installation of devices for protection, isolation, switching, control and monitoring. However, Msz Hd 60364-7-729 is a Hungarian addition that deals with operating or maintenance corridors.
To use Msz Hd 60364 effectively, one should first identify the scope and characteristics of the electrical installation to be designed or installed. Then, one should consult the relevant parts of Msz Hd 60364 that apply to the installation. For example, if the installation involves photovoltaic systems connected to the grid, one should refer to Msz Hd 60364-7-712, which specifies the requirements for such systems. One should also check if there are any national deviations or additions that need to be considered. For example, Msz Hd 60364-4-443 specifies some additional requirements for protection against transient overvoltages caused by atmospheric or switching phenomena.
One should also be aware of the legal obligations and responsibilities associated with using Msz Hd 60364. According to Hungarian regulations, electrical installations with a floor area exceeding 300 m2, or with more than three building levels, or with a gross volume exceeding 1000 m3 and an available power exceeding 30 A require an execution plan prepared by a qualified engineer. The engineer should have a valid license for designing renewable energy buildings (EN-ME), electrical engineering buildings (EN-VI) or building electrical engineering (V). The execution plan should include a system documentation, an installer's declaration and a test report according to Msz EN 62446. The electrical installation should also comply with other relevant regulations, such as fire protection, occupational health and safety, public utility distribution network connection, etc.
Where to find Msz Hd 60364?
Msz Hd 60364 is published by the Hungarian Standards Institution (MSZT), which is the national standardization body of Hungary. MSZT also provides explanatory collections of standards that facilitate the application of Msz Hd 60364 by providing explanations, examples and illustrations for each part. The latest version of the explanatory collection is the 11th revised edition, which includes four new or updated standards with explanations: Msz HD 60364-4-443:2016, Msz HD 60364-6:2017, Msz HD 60364-7-714:2013 and Msz HD 60364-7-729:2010. The explanatory collection can be purchased from MSZT's standard shop or ordered by email at ki...@mszt.hu.
Msz Hd 60364 can also be accessed online through MSZT's webshop, where one can buy individual parts or subscribe to the whole series. The webshop also provides access to other related standards, such as IEC 60364 and its amendments, EN standards adopted by Hungary, national standards on related topics, etc.
Conclusion
Msz Hd 60364 is a series of Hungarian standards that specify the requirements for the design, installation, inspection and testing of low-voltage electrical installations. It is based on the international standard IEC 60364, but it also includes some national deviations and additions. Msz Hd 60364 is important because it ensures the safety, reliability and efficiency of electrical installations in buildings. To use Msz Hd 60364 effectively, one should consult the relevant parts of the series that apply to the installation, and also be aware of the legal obligations and responsibilities associated with using the standards. Msz Hd 60364 can be found at MSZT's standard shop or webshop, where one can also access explanatory collections and other related standards.
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