TY  - BOOK
AU  - International Electrotechnical Commission
TI  - IEC: 439 - 3 - 1990; Low-voltage switchgear and controlgear assemblies Part 3: Particular requiremets for assemblies for low-voltage switchgear and controlgear assemblies intended to be insstalled in places where unskilled persons have access for their use - distribution boards
PY  - 1990///
CY  - Geneva
PB  - IEC
ER  -