Exacting technical requirements can be set, even for a cabling installation consisting of ‘a few power sockets and lighting fixtures’.
.
Plain, sober and unassuming yet well laid-out and highly functional was an explicit requirement of the customer.
One of the 4 electrical boxes. The installation is supplied from 3 different power sources. The power supply from 2 of these power sources was ensured, once over, by 2 UPS systems; the 3rd power source by an emergency power unit.
Unequivocal identification is a must to correctly connect the numerous electric cables. The numbering of these cables, by means of clearly legible labels, allows of quick and easy retrieval of each cable’s safety device (automatic circuit breaker) and its consumer (power socket).
Every consumer (a server, a VDU, …) is supplied from at least 2 power sources. If 1 of the 2 cuts out, then the other power supply takes over automatically, thereby guaranteeing continuity of supply.