BS EN 62561-3:2017

This standard BS EN 62561-3:2017 Lightning protection system components (LPSC) is classified in these ICS categories:

• 29.020 Electrical engineering in general
• 91.120.40 Lightning protection

This part of IEC 62561 specifies the requirements and tests for isolating spark gaps (ISG) for lightning protection systems.

ISGs can be used to indirectly bond a lightning protection system to other nearby metalwork where a direct bond is not permissible for functional reasons.

Typical applications include the connection to

• earth-termination systems of power installations,

• earth-termination systems of telecommunication systems,

• auxiliary earth electrodes of voltage-operated, earth fault circuit breakers,

• rail earth electrode of power and DC railways,

• measuring earth electrodes for laboratories,

• installations with cathodic protection and stray current systems,

• service entry masts for low-voltage overhead cables,

• bypassing insulated flanges and insulated couplings of pipelines.

This does not cover applications where follow currents occur.