UR E - Electricity

UR E21 New

UR E21 Requirements for uninterruptible power system (UPS) units as alternative and/or transitional power - Sept 2005

UR E22 On board use and application of computer based systems - Rev.2 June 2016

UR E23 Deleted

UR E23 Selection of low voltage circuit breakers on the basis of their short circuit capacity and co-ordination in service - Deleted Mar 2011

UR E24 New

Harmonic Distortion for Ship Electrical Distribution System including Harmonic Filters - June 2016

UR E25 New

Failure detection and response of all types of steering control system - June 2016 

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