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About This Item
Full Description
1) Many more definitions are included, e.g. response time, central power supply system, low power supply system, preferential circuit and escape route.
2) Automatic supplies are now classified according to the maximum changeover times, for example a supply classified as short break means an automatic supply is available within 0,5 s.
3) Safety sources that can operate in parallel are specifically recognized in 560.6.9.
4) Requirements are now given for batteries used for safety sources for central and low power supply sources.
5) Drawings are now required, such as a single-line diagram, drawings showing the location of equipment and a list of equipment permanently connected to the safety power supply.
6) Operating instructions are now required.
7) Detailed requirements are now given for emergency escape lighting applications, direct current circuits and fire protection applications.
8) Additional requirements for initial verification and periodic inspection and testing are now included in the standard.
9) Two annexes are now included (Annex A and Annex B) giving guidance for emergency lighting and guidance for fire protection equipment, respectively.
Document History
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IEC 60364-5-56 Ed. 3.0 en:2018
Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services- Most Recent
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IEC 60364-5-56 Ed. 2.0 b:2009
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Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services- Historical Version