TY  - BOOK
AU  - International Electrotechnical Commission
TI  - IEC: 439-2 - 1987 (Amendt. No.1 - 1991); Low-voltage switchgear and controlgear assemblies Part 2 - Particular requirements for busbar trunking systems (busways)
PY  - 1991///
CY  - Geneva
PB  - IEC
ER  -