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ELECTRICAL STANDARDS RCD USAGE AND EARTHING REQUIREMENTS FOR PORTABLE GENERATORS Rev: B Our Ref: UDP13_255-0220 Prepared by CP3 – T07 Rev C

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Earthing and Protection of Stand Alone Generators

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Electrical Standards

RCD Usage and Earthing Requirements for Portable Generators

ELECTRICAL STANDARDS

RCD USAGE AND EARTHING REQUIREMENTSFOR PORTABLE GENERATORS

Rev: B

Our Ref: UDP13_255-0220

Prepared by

TABLE OF CONTENTS

1RCD Usage and Earthing Requirements on Portable Generators 31.1Residual Current Devices (RCDs) Protection - Theory of Operation31.2Typical Generator Configurations and Return Paths for Faulted Current.41.2.1Small Generators ( 3kVA to 25kVA)51.3Electrical Requirements and Testing Adopted for Each Generator Size61.3.1Small Generators ( 3kVA to

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