- Is there any danger to my equipment?
- No. Particularly if the equipment in question is listed by Underwriters Laboratories or another recognized testing laboratory. The voltage and frequency applied to a power supply is exactly the same. Only the grounding reference is changed.
- Though unbalanced (standard) ac power has a neutral conductor, UL standards specifically prohibit the use of a neutral as a grounding reference even though it has zero volts.
- If the neutral side of a power supply were to be grounded, it would immediately cause actuation of the output breaker on the balanced power system thereby shutting the system down.
- Even if the ground was lifted on the ac cord and the neutral side of the power supply was improperly grounded to the chassis, touching the chassis would result in a 5 millisecond shock at only 60 Volts before the system sensors detected excess ground leakage and shut the system down.
- The electrical code requires redundant safety measures be incorporated into all balanced power systems protecting both equipment and personnel from harm.
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