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I am fitting an LPS to a building, which contains no sensitive electronics systems. Do I still need to fit Type 1 (equipotential bonding) SPDs?

April 26, 2017building electronics fit fitting LPS sensitive SYSTEMS type

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I am fitting an LPS to a building, which contains no sensitive electronics systems. Do I still need to fit Type 1 (equipotential bonding) SPDs?

1 Answer

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10 Posted

Yes. Type 1 SPDs (for mains power supplies) and Category D SPDs (for data/telecom lines) form an integral part of the equipotential bonding requirements for an LPS. They are needed to prevent partial lightning currents from causing dangerous sparking and the possibility of a fire or electric shock hazards. Type 1 SPDs are not designed to protect equipment, but form the first part of a coordinated SPD set further consisting of Type 2 and 3 SPDs.