ANSI/IEEE: C37.71 - 1984; Three-Phase, Manually Operated Subsurface Load-Interrupting Switches for Alternating-Current Systems
ANSI/IEEE: C37.71 - 1984; Three-Phase, Manually Operated Subsurface Load-Interrupting Switches for Alternating-Current Systems
- New York IEEE 1984
- 24
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