IEC 62305-3 describes repeat testing for arresters.
According to IEC 62305-3, surge protective devices must be tested regularly (see table below). In addition, the standard requires the traceable documentation of test values. The method of operation of the CHECKMASTER 2 meets these requirements.
|Lightning Protection Level||I and II||III and IV|
|Visual check (interval)||annually||every 2 years|
|Comprehensive check||every 2 years||every 4 years|
|Comprehensive check of critical systems||annually||annually|