Appendix A
System Specifications and Site Requirements
85
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Circuit breakers must be located between the DC power source and the StorEdge
S1 storage enclosure. You should use two 10-amp, double-pole, fast trip, DC-rated
circuit breakers for each power supply.
DC Supply and Ground Conductor Requirements
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Copper is the only suitable conductor material
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Power supply connections through the input connector: 12 AWG (between the
StorEdge S1 and the circuit breaker). There are three conductors:
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-48V
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Ground connection to the power supply
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-48V Return
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System ground conductor: 6 AWG (to be connected to the chassis)
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Cable insulation rating: minimum of 75C, low smoke fume (LSF), flame retardant
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Cable type to be one of the following:
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UL style 1028 or other UL 1581(VW-1) compliant equivalent
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IEEE 383 compliant
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IEEE 1202-1991 compliant
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Branch circuit cable insulation color: per applicable National Electrical Codes
■
Grounding cable insulation color: green/yellow
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