I have a Client that will not provide a Risk Assessment to omit an RCD Commando Socket for a Data Cabinet. He wishes to employ a local isolator for the Cabinet, however he is concerned that the PDU Strip that arrived on site from the factory and pre-fitted within the data cabinet would still need an RCD. It is my opinion that the Factory built Data Rack is classed as a piece of equipment and as such does not form part of the Contractor's installation. If the Rack had arrived on site without the PDU strip fitted and it was installed by the Contractor then this would form part of the installation and therefore would require an RCD. Any advice/assistance would be appreciated.
The 'obvious' fear of 3 phases is probably over stated, so long as the neutral is not shared and then accidentally lost.
any one load will see only a single phase supply,and redundant supplies don't merge outputs until they are a ground referred DC.
It takes a certain incompetence to get the phase to phase voltage anywhere that only 230V is expected, and when it happens ADS normally sorts it safely although some kit may be lost.
The 'obvious' fear of 3 phases is probably over stated, so long as the neutral is not shared and then accidentally lost.
any one load will see only a single phase supply,and redundant supplies don't merge outputs until they are a ground referred DC.
It takes a certain incompetence to get the phase to phase voltage anywhere that only 230V is expected, and when it happens ADS normally sorts it safely although some kit may be lost.
