Page 131 - RotF - Electrical Specification_Neat

PARTICULAR ELECTRICAL SPECIFICATION
Version 2014-2

installed as indicated in the appendices of the Technical Specifications for Electrical
Installations Generally.

The Electrical Contractor will confirm the size of the cable to suit the rating of the protection
device, taking account of any applicable de-rating factors.

Where hanging sockets are required, the outer sheath of the cable to the in-line socket will
be black.

1.7.3 IT Power Distribution

1.7.3.1 Distribution Board

A new 12 way SP&N IT power distribution board (IP) will be provided to allow the connection
of all new equipment and services, refer to the Technical Specifications for Electrical
Installations Generally for details.

The IT distribution board will be connected to the existing main distribution board where
possible; otherwise it will be connected to the Kitchen distribution board as described.

The associated MCCB or MCB will be rated at 45A.

The cable between the main or Kitchen distribution board and the IT distribution pane
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assembly will be installed as a 10mm 3-core LSF insulated YY multi-core cable on tray.
The Electrical Contractor will confirm the final size of the cable to suit the rating of the
protection device, taking account of any applicable de-rating factors.

1.7.3.2 Connections to Digital Screens

A BS1363 twin switched socket will be provided at the location of each item of equipment as
identified on the specialist installers’ drawings, or otherwise as identified by the Technical
Specifications for Electrical Installations Generally.

Sockets for digital display equipment and devices will generally be located in service voids;
sockets will be located so as to be readily accessible within the voids.

1.7.3.1 Protective Devices

All circuits will be provided with 30mA RCBO protection without exception. Circuit overload
protection will be selected in accordance with the following table:

Circuit type RCBO rating
Radial to sockets (≤5 number) 20A
Ring to sockets (≥5 number) 32A
Data cabinet 16A

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