International standard CEI IEC 947-1. Low-voltage switchgear and controlgear : Obs. Part 1.: General rules. 1 - 247 s.. Part 2.: Circuit-breakers. 1 - 129 s
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| Format: | Book |
|---|---|
| Language: | English |
| Published: |
Geneve :
CEI,
1988-1989
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