• Proceedings of the KIEE Conference
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• 2001.05a
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• pp.140-143
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• 2001

As global trade system transferred GATT into WTO, the harmonization of technological standards, certification, construction, testing is the trend of world. This drift is based on WTO / TBT agreement coming. In effect after 12th, April, 1979. For Korea, the distribution system has a strong resemblance to American system so that engineers are confused in adopting standards. IEC60364 and NEC are in part similar but unconvertible because IEC 60364 originated from Europe while NEC originated from USA. This thesis deals with the fundamental elements of electrical safety system with comparing IEC 60364 with NEC. It serves as a guide how to apply standards when engineers select electrical installations.