Main Switchboard (MSB) · Power Distribution
The JRCS JSB-5 is a high voltage switchgear and control gear assembly with DNV type approval, listed with a rated insulation voltage of AC 12 kV and 50/60 Hz frequency. It carries a main bus bar current of 2000 A, a rated short-time withstand current of 31.5 kA for 1 second and an internal arc rating of 31.5 kA for 1 second. It serves as a main switchboard for distribution on board.
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“High Voltage Switchboard General Specification and Ratings Item Applicable standard Applicable classification societies Switchgear structure”
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
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