Power Supply

The computer hardware should be powered by a dedicated line. This ensures that it is not affected by interference and faults generated by various other installations and devices.

The power should be conveyed exclusively by copper conductors from the source. Aluminium conductors must not be used.

Pre-Requisites:

Supply of the power supply interface and of the corresponding electrical installation. In order to define the needs of the interface, it is necessary to know the apparent total power of the configuration = Electric balance of configuration (kVA).
Supply and installation of the electric power supply cabinet (with the required protections).
The power supply cables for the hardware (braid screened) should be supplied from the electricity distribution panel up to the connection point of the hardware. See "Braid-protected cable".
The principle governing the connection of the hardware to the power supply:
- By plastic water-proof and dust-proof unit. The size of the connection terminals depends on the cross-section of the conductors. See "Screening continuity".
- By current outlet (with "earth" plug). It is essential to ensure the continuity of the screening (braid) in the sockets, connection to the "earth" plug.
- Direct connection to the machine (in general, the terminal connectors are to be supplied).
Supply and installation of an emergency stop system (locking system) and of a device designed to cut the power if the temperature reaches 27/29°C (see "Active safety").
The "emergency stop" or high-temperature cut-off should take place at the level of the general circuit breaker dedicated to the data processing centre.

You should lay the electric and data cables in bulk on the primary slab, in the plenum space of the raised floor. If it is necessary to use cableways, the electricity distribution cables should be separated from the data transmission cables (separation of high and low currents) by at least 30 cm.

Non-Computing Power Supply

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