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Immingham Storage Company Limited – East Terminal
No.7 Switchroom - Basis of Design
P & I Design Ltd
DOCUMENT NO: SI451001_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: C DATE: 10.08.12
Tel: + 44 (0)1642 617444
PAGE 10 OF 12
Fax: + 44 (0)1642 616447
www.pidesign.co.uk5.3
Modifications not Reliant on ABP Decision
1.
Provide new MCC in No.7 Switchroom to replace Board fed from Switch EE i.e.
the board which is located in the compressor house end of the building. This will
enable this old board to be retired.
2.
Provide new MCC in No.7 Switchroom to replace Board fed from Switch AC. This
will enable this old board to be retired.
3.
Incorporate old No.7 Switchroom drives into new MCC and retire old No.7
switchroom
5.4
No.6 Switchroom
No.6 Switchroom is currently fed at 415V and limited to 200A capacity. This supply is
known to have a poor earth loop impedance value which impacts on electrical designs in
this switchroom. If a new 11kV supply becomes available from ABP (section 5.1) then
No.6 switchroom would be re-supplied from No.7 switchroom and the ABP 415V supply
retired. If a new supply is not available then the decision to re-supply No.6 from No.7
would be deferred until the new capacity and usage was fully understood.