Safety distance for busbars below 35kV

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These distances are influenced by voltage level, pollution degree, and the system insulation category. The IEC 61439-1 standard is the most commonly used document for defining these values. It applies to low-voltage switchgear and control gear assemblies and provides a table of. 1 may be met by complying with IEC 60092-503 Electrical installations in ships – Part 503: Special features – AC supply systems with voltages in the range of above 1 kV up. 7 cycles of 24 h each to salt mist test according to IEC 60068-2-11; (Test Ka: Salt mist), at a temperature of (35 ± 2) °C.

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Data Sheet

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