No.7 Switchroom Supporting Design Documentation

Simon Storage - ISCo East

No.3 Pumphouse Modifications – Electrical Infrastructure Installation Tender

P & I Design Ltd

DOCUMENT NO: SI451001_INS

2 Reed Street, Thornaby, UK, TS17 7AF

ISSUE: A DATE: 15.02.12

Tel: + 44 (0)1642 617444

PAGE 7 OF 14

Fax: + 44 (0)1642 616447

SCOPE OF WORK

The scope of work is as detailed in the following sections and as shown on the

documentation listed below.

Cable Schedule

SI451001_SCH Rev A

Basis of Design Document

SI451001_RPT Rev B

4.1

Switchroom Containment

Referring to switchroom layout sketch in ‘Basis of Design document SI451001_RPT,

already issued (sketch repeated below). Extensive cable racking is to be provided to

provide the infrastructure for this scope and the future final switchroom layout. Some

racking is currently being installed under a separate contract by Aquabio and new racking

will have to tie into this as far as possible.

2 off 900mm ladder racks vertically stacked one for power and one for control,

extending wall to wall across the newly constructed southern switchroom wall

between expected external cable entry positions. This racking is to pass over the top

of the LV board. Power rack to be above control rack.

2 off 900mm ladder racks side by side for power cables extending from the power

rack in (a) above, across the top of MCC 1 & 2 throughout the length of the

switchroom to cater for future extension of the MCCs.

2 off 900mm ladder racks side by side for control cables extending from the control

rack in (a) above, across the top of MCC 1 & 2 marshalling section and terminating

prior to the start of the main MCC. These shall be positioned beneath the power

racks.

2 off 600mm ladder racks vertically stacked, one for power and one for control,

extending from the 900mm racks in (a) above around the eastern side wall of the

switchroom to provide for cables to future control panels positioned against the

switchroom wall.

2 off 600mm ladder racks vertically stacked, one for power and one for control,

extending from the 900mm racks in (a) above, around the western side of the

switchroom to provide for cables to future panels. These racks are to be aligned with

the Aquabio panel which stands away from the side wall. The racks are to terminate

at the Aquabio panel but will need to carry the main power cable from the LV board

to the Aquabio panel main incomer.