Electrotechnical

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NAMS/IEC 60099-4:2015 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
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NAMS/IEC 60137:2016 Insulated bushings for alternating voltages above 1000 V
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NAMS/IEC 60214-1:2015 Tap-changers – Part 1: Performance requirements and test methods
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NAMS/IEC 60214-2:2015 Tap-changers - Part 2: Application guide
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NAMS/IEC 60255-1:2015 Measuring relays and protection equipment – Part 1: Common requirements
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NAMS/IEC 60364-5-53:2015 Electrical installations of buildings - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control
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NAMS/IEC 60364-5-53:2016 Electric installations of buildings – Part 5-53: Selection and erection of electrical equipment – Isolation, switching and control.
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NAMS/IEC 60433:2016 Insulators for overhead lines with a nominal voltage above 1000V – Ceramic insulator for a.c. systems – Characteristics of insulator units of the long rod type
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