The purpose of this standard is to harmonize as far as practicable all rules and requirements of a general nature applicable to low-voltage switchgear and controlgear in order to obtain uniformity of requirements and tests throughout the corresponding range of equipment and to avoid the need for testing to different standards.
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IEC 60947-1 Ed. 5.0 b:2007
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Low-voltage switchgear and controlgear – Part 1: General rules
International Electrotechnical Commission , 06/06/2007
Pages: 453
