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  • Why Does the Telecom Industry Use -48V DC? The Long-Standing Choice Behind Power Safety and Corrosion Control

    Why Does the Telecom Industry Use -48V DC? The Long-Standing Choice Behind Power Safety and Corrosion Control

    Nov , 10 2026
    From historical practice to modern telecom power systems, -48V was not an arbitrary choice. In telecom power systems, -48V does not mean that every point inside the equipment is 48V below ground. In a common system configuration, the positive DC pole is connected to the ground reference, while the negative pole serves as the power supply rail. Therefore, when measured relative to ground, the negat...
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  • How to Plan a High-Voltage UPS Battery System for Reliable Backup Power and Future Expansion

    How to Plan a High-Voltage UPS Battery System for Reliable Backup Power and Future Expansion

    Nov , 12 2026
    As data centers, industrial facilities, and critical infrastructure continue to expand, reliable backup power has become increasingly important. A well-designed UPS battery system must not only provide sufficient backup power during outages but also accommodate future changes in load demand, runtime requirements, and facility capacity. High-voltage lithium battery systems are becoming an increasin...
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