If the "central command" board is connected to the switchboard feed via fixed wiring (not a plug and socket) then in theory the neutral is always at ground potential.
This assumes that the switchboard breaker is not an MCB/RCD combo or has an RCD in use with it. Covering the neutral link bar would probably be prudent in any case.
This assumes that the switchboard breaker is not an MCB/RCD combo or has an RCD in use with it. Covering the neutral link bar would probably be prudent in any case.