DNV DNV TAP NO. MR-E004
Switches
standard by DNV , 01/01/2013
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About This Item
Full Description
General description of the product
Description of product according to IEC IEV 441-14-10. Switch (mechanical): is a mechanical switching device capable of making, carrying and breaking currents under normal circuit conditions which may include specified operating overload conditions and also carrying for a specified time currents under specified abnormal circuit conditions such as those of short circuit.
Note: a switch may be capable of making but not breaking short circuit currents.
Application limitations
• Restricted to LV mechanical switches according IEC 60947-3 where the rated voltage does not exceed 1 000 V a.c. or 1 500 V d.c. and without electronic devices.
• Onboard ships with exceptions as per SOLAS Ch. I, Reg. 3.
• Installation on board ships within locations with climatic, biological, chemically active, mechanically active and mechanical environmental conditions not exceeding those for which performance has been proved according to IEC 60721-3-6 (1993) + A2 (1997).
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