KS C IEC 60621-5-2014 Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries)-Part 5:Operating requirements
2014KS C IEC 60621-5:2014 Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries)-Part 5:Operating requirements
0000 KS C IEC 60621-5-2005(2010)
2005KS C IEC 60621-5:2005 Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries)-Part 5:Operating requirements