000 00281nam a2200073 4500
080 _a
_b
245 _aIEC: 439-1- 1992; Low-voltage switchgear and controlgear assemblies part 1 - type-tested and partially type-tested assemblies
700 _aInternational electrotechnical commission
260 _aGeneva
_bIEC
_c1992
300 _a193p
999 _c35790
_d35790