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Islanding is the intentional or unintentional division of an interconnected power grid into individual disconnected regions with their own power generation. Intentional islanding is often performed as a defence in depth to mitigate a cascading blackout. If one island collapses, it will not take neighboring islands with it.
The International Maritime Organization (IMO) states that "The International Ship and Port Facility Security Code (ISPS Code) is a comprehensive set of measures to enhance the security of ships and port facilities, developed in response to the perceived threats to ships and port facilities in the wake of the 9/11 attacks in the United States".
In order to comply with the ISM Code, the Company operating the vessel has to be audited first (after they submit their Safety Management System Manual (SMS) and is approved by Flag Administration or Recognized Organization (RO). Once a Company is Audited, the Document of Compliance (DOC) will be issued (validity 5 years). Every Company is ...
IEC 61192 Workmanship requirements for soldered electronic assemblies; IEC 61193 Quality assessment systems; IEC 61194 Characteristic parameters of stand-alone photovoltaic (PV) systems (Withdrawn, replaced by IEC TS 61836:2007) IEC 61195 Double-capped fluorescent lamps – Safety specifications; IEC 61196 Coaxial communication cables
Many countries have turned these international requirements into national laws so that anybody on the sea who is in breach of SOLAS [5] V requirements may find themselves subject to legal proceedings. [6] Chapter I – General Provisions Surveying the various types of ships and certifying that they meet the requirements of the convention. [2]
It has been defined and is controlled by the National Marine Electronics Association (NMEA). It replaces the earlier NMEA 0180 and NMEA 0182 standards. [2] In leisure marine applications, it is slowly being phased out in favor of the newer NMEA 2000 standard, [3] [4] though NMEA 0183 remains the norm in commercial shipping.
The top manufacturer is Garmin's Marine division with a turnover of US$917 Million in 2023 [8] followed by Brunswick-owned Navico Group (Simrad, Lowrance, B&G and several other brands), with a turnover of US$915 Million (although this includes sales of equipment which is not marine electronics, such as batteries, cables and pumps).
In many companies this situation has changed a lot, as many have realized that modern electrical and electronic systems require an extra attention and therefore require an expert to attend them. This is especially true on diesel-electric ships or vessels equipped with sophisticated systems such as dynamic positioning.