Transcription of Electrical Design Considerations for Offshore Installations
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Electrical Design Considerations for Offshore Installations
Electrical Design Considerations for Offshore Installations Presented by: Mike Alford, Stan Beaver, & Chris Migl Introduction This seminar is intended to present a high level view and set a stage for further review of differences and specific requirements of Offshore Electrical Installations Discussions of the codes, standards, and regulatory requirements will present our interpretation of present requirements; however, in addition to the expected changes in codes and standards, agreements of jurisdiction between regulatory agencies are also being revised. It is imperative that the authorities have jurisdiction (BSEE. &USCG) be contacted early during the Design phase to clearly define the regulatory and standard requirements. During this seminar, we will concentrate on manned Offshore US requirements What's Different About Offshore ? Surrounded by sea and hydrocarbons No place to run Logistics difficult - Materials by Supply Boat - Personnel Transfers by Chopper - Escape in Chopper or in Survival Craft/Raft - Offshore work costs 5x to 10x what it would onshore Expensive real estate - Hull costs $12 for each pound it floats Relatively Small Footprint - Buildings Cramped - Tight Equipment Spacing - Material Handling Issues - Studies a Must What's Different About Offshore ?
Jan 08, 2016 · shaft gas turbines or the larger two shaft aero derivative turbines are selected. b. Evaluate fuel consumption between choices. c. When choices are available, note that single shaft turbines generally have a greater step load capability than multi-shaft turbines. 5. Determine the ISO ratings and deratings for site conditions for the
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