This standard specifies the required performance, standard test methods, and ratings for surge protective devices (SPDs) connected to power circuits and equipment that operate at 50/60Hz AC 1000V or less or DC 1500V or less.
JIS C 5381-1:2004 history
2014JIS C 5381-11:2014 Low-voltage surge protective devices.Part 11: Surge protective devices connected to low-voltage power systems .Requirements and test methods
2004JIS C 5381-1:2004 Surge protective devices connected to low-voltage power distribution systems -- Performance requirements and testing methods