Lightning protection system components (LPSC) – Part 3: Requirements for isolating spark gaps (ISG)
|Publication Date:||1 June 2017|
|ICS Code (Lightning protection):||91.120.40|
|ICS Code (Electrical engineering in general):||29.020|
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.