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DNV-OSS-101 Rules for Classification of Offshore Drilling and Support Units
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Ch.2 Sec.7
C. Crane Installations
Ch.2 Sec.7
C 100 General
Ch.2 Sec.7 C
101 Wind Turbine Installation Units which are equipped with a
crane, and is specially intended for lifting purposes, shall in
addition to service notation Wind
Turbine Installation Unit be assigned the service notation Crane Unit as specified
in Sec.5 and shall comply with
the requirements of class notation CRANE as specified in Sec.6 H.