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Time relays for industrial and residential use - Requirements and tests. Original standard BS EN 61812-1-2011 in PDF full version. Additional info + preview on request

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Communication networks and systems for power utility automation Part 4: System and project management. Original standard BS EN 61850-4-2011 in PDF full version. Additional info + preview on request

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Communication networks and systems for power utility automation Part 5: Communication requirements for functions and device models. Original standard BS EN 61850-5-2013 in PDF full version. Additional info + preview on request

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Communication networks and systems for power utility automation Part 6: Configuration description language for communication in electrical substations related to IEDs. Original standard BS EN 61850-6-2010 in PDF full version. Additional info + preview on request

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Communication networks and systems for power utility automation Part 6: Configuration description language for communication in power utility automation systems related to IEDs (IEC 61850-6:2009). Original standard BS EN 61850-6-2010 + A1-2018 in PDF full version. Additional info + preview on request

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Communication networks and systems for power utility automation Part 7-1: Basic communication structure Principles and models. Original standard BS EN 61850-7-1-2011 in PDF full version. Additional info + preview on request

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