Cabling
Observe the following when cabling the power unit to the ProSafe-RS system equipment:
• Protect signal cables from induced noise.
• Protect signal cables from induction from high-voltage power lines.
• Separate the ProSafe-RS system power supply from other equipment power supplies.Use a separate power distribution board.
• Provide a dedicated breaker for each power supply. Install breakers and devices in the same room.
• As far as possible install power supply cables and high-voltage power lines in metallic conduits.
• Use shielded cables if metallic conduits cannot be provided.
To avoid electric shocks and minimize the influences of external noise, the installed devices must be grounded to the protective grounding system which complies with the safety standards, the electrical installations standard, and the power distribution system of the country or the region.
As for the protective grounding systems, the meshed grounding systems described in IEC 60364, IEC 62305 and IEC 61000-5-2 can be applied. A protective device is to be installed in compliance with the rules and regulations, in order to prevent electric shocks caused by a ground fault. A plug type power cable has to be connected to the receptacle connected to the protective grounding system.
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