Published date: 20 July 2020

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Closing: 31 July 2020

Contract summary

Industry

  • Electricity - 09310000

  • Electrical machinery, apparatus, equipment and consumables; lighting - 31000000

  • Parts of electric motors, generators and transformers - 31160000

    • Electricity distribution and control apparatus - 31200000

    • Electrical parts of machinery or apparatus - 31670000

    • High voltage installation work - 45315400

Location of contract

London

Value of contract

£1,000,000 to £1,200,000

Procurement reference

MT220180

Published date

20 July 2020

Closing date

31 July 2020

Contract start date

1 December 2020

Contract end date

1 June 2021

Contract type

Works

Procedure type

Restricted procedure

A two-stage procedure, where the first stage is used to select suppliers, who are then invited to bid in the second stage.

Contract is suitable for SMEs?

No

Contract is suitable for VCSEs?

No

Description

This is the first stage of a two stage tender process.
The Science Museum have identified the need to replace key components of their main electrical infrastructure supplying their South Kensington premises.
The building is supplied at Medium Voltage (MV) through a 6.6kV private network originating from two feeders originating at the neighbouring Natural History Museum site. The MV distribution supports five load centres distributed around the basement of the Science Museum. The load centres are denoted as substations H, J, K, L & M. Load centre H, J, K & M each include:
- 2 No 800kVA transformers, each with close-coupled ring main units.
- 2 No LV switchpanels, each fed from a dedicated transformer.
The two LV switchpanels in each load centre are linked via a busbar interconnector, which is protected by an air circuit breaker (ACB) at either end of the connection. In all load centres the transformers and LV switchgear are located in separate rooms
Load centre L utilises a single transformer/RMU and single switchpanel arrangement.
The ring main units on site are generally manufactured by Brush and are the Falcon Beta model; however there are a limited quantity of Merlin Gerin Ringmaster units installed.
The transformers were either manufactured by Brush, Peebles or Schneider.
The LV switchgear was generally manufactured by Rees Switchgear and comprises GEC switch-fuse outgoing ways and GEC M-Pact ACB incomers and bus-interconnector protective devices.
Much of the distribution equipment is life-expired, is no longer supported by the original equipment manufacturers and has been identified as requiring replacement.
This project involves the replacement of RMUs and ACBs in substations H, J, L & M. The replacement/upgrade project will be undertaken in a phased manner that causes no business disruption to the Science Museum. This will require much of the works to be undertaken outside or normal working hours, during the evenings or weekends.
The Science Museum's MV and LV maintenance is carried out by an on-site FM provider. All works will need to be undertaken in collaboration with the on-site team.

More information

Links

About the buyer

Contact name

Georgina Parker

Address

Science Museum
Exhibition Road
London
SW7 2DD
England

Telephone

+44 2079424000

Email

georgina.parker@sciencemuseum.ac.uk

Website

http://www.sciencemuseum.org.uk