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RPV311
3.5
Pre-energisation Checklist
3.6
Peripheral Circuitry
32
All connections to the equipment must have a defined
potential. Connections that are pre-wired, but not used,
should be earthed, or connected to a common grouped
potential.
Pay extra attention to diagrams before wiring the
equipment. Always be sure that the connections are correct
before energizing the circuits.
The connections: Console1, Console2, MODEM and Process
bus are non-isolated and for local connection only.
Check voltage rating/polarity (rating label/equipment
documentation).
Check CT circuit rating (rating label) and integrity of
connections.
Check protective fuse or miniature circuit breaker (MCB)
rating.
Check integrity of the PCT connection.
Check voltage and current rating of external wiring,
ensuring it is appropriate for the application.
Do not open the secondary circuit of a live CT
since the high voltage produced may be lethal
to personnel and could damage insulation.
Short the secondary of the line CT before
opening any connections to it.
Reason devices DO NOT feature any automatic CT shorting feature. Therefore
external shorting of the CTs is mandatory. Check the equipment documentation
and wiring diagrams carefully.
Chapter 2 – Safety Information
RPV311-TM-EN-7
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